Silvercrest Submarines are the UK's premier submarine & Rov sales company with contracts performed worldwide.

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Thank you for contacting Silvercrest Ltd, concerning your ROV requirement. We will be pleased to offer every assistance that you may require, and discuss your ideas, in order to help you with your planned underwater project. At present we can offer for sale the following Rovs, and submersibles.


Should this selection not match your exact requirement, please contact us to discuss other options.


Silvercrest has contacts worldwide, and we can usually source the correct underwater vehicle for your project and budget. We specialise in buying and selling secondhand submarines and Rovs designed for offshore activities, underwater tourism, subsea filming, scientific research, wreck hunting, salvage, dry transfer, and DSRV operations  (submarine rescue).





Silvercrest/SME specialize in the bespoke manufacturing of submersible motors, and pumps for use on Rovs, subsea trenchers, subsea ploughs, dredgers and water lift pump systems, for use in the offshore Oil and Gas and Telecommunications industries. We offer a range of submersible motors (5hp to 1500hp) with a choice of voltages (ranging from 380vac to 6600vac) for use subsea, and in the more popular classes of subsea ploughs and Rovs.  All of these motors are available in either SS316 or Hard Anodized Aluminium finish. We can also design and build motors to suit your individual and special project requirements. In addition we refurbish, rewire, and service a wide range of submersible motors. Our product is excellent, our prices very competitive, and our delivery schedule the best in the industry.  We recently delivered ten 260kW, 3000VAC, double ended, 2-pole, stainless steel bodied motors to an offshore company, for use on their fleet of sub-sea trenchers. This was a bespoke order that was completed in just six weeks from receipt of order. We supply submersible motors, and motor- pump sets to SMD, CTC Marine, Fugro, Impresub, Saab SeaEye, LDtravocean, and many other subsea companies.


Please contact us to discuss the details of your motor / pump requirements in order to produce a detailed quotation for you.



Tiger ROV for charter.

Complete with TMS, Lars and support container. Manipulator arm, Tritech sonar,  1000m depth rating. Please contact us for details.


Explorer 100hp WROV for charter.

Complete system. 2000m depth rating. Please contact us for details.


SeaEye Tiger ROV available for charter, with TMS. 1000m rated. Please contact us for details.





Manipulator Arm for sale.

Schilling robotic arm in good condition. Alston Schilling, Type Conan 7 P. Complete with the Electronics. Immediately available.

New build Mojave ROV in standard configuration. Immediately available.


Pollux(111) ROVs for sale.

Two complete systems, one is 300m rated, the other 600m rated. Both systems are in new condition. The deep unit is upgraded with Tritech sonar, low light & HD camera & grabber manip. 3 x tethers (150, 300, 600 Meters). Spares package, 2 x control consoles.. Can be sold separately.



This is an older ROV with four thrusters, and a Simrad Osprey colour zoom camera fitted, plus two lights. Complete with a HydroLec robotic/mechanical arm, two umbilical cables (plus winch), a deck unit and monitor in a flight case, deck control unit and all connecting cables.  Various spares and three manuals.


Containerised Super Seeker ROV for sale.

Super Seaker ROV System with offshore container, launch & recovery system, slip ring winch and sonar.  The System Comprises: Super Seaker vehicle.  200m umbilical. Electric slip ring launch & recovery winch.  4 x Hi-thrust thrusters . Depth & Heading over layed on video.  Seacam® colour camera .  Seacam® monochrome camera.  Manipulator arm.  2 x 250w Seabeam lights. Unzoned DNV Container fitted with:  Control console.  Video suite. Launch/recovery davit arm. Power distribution and controls.


Mojave ROV for sale.

Mojave ROV for sale. Dive ready. 300m depth rated. Tritech colour zoom camera, extensive spare parts kit, 340m tether, manual EX winch, 2 x extra lights, client junction box, Technical Operation and Maintenance Manuals. 


H300 MKII - Inspection ROV.

Depth rated to 300 m.  Sufficient power and thrust to withstand sea currents up to at least 3 knots.  High performance viewing system, with both a colour/zoom TV camera (mounted on a full Pan/Tilt unit) and a B/W very low light TV camera. Altimeter (with auto altitude function) . Positioning system. High resolution digital still camera.  Manipulator arm. Single and ergonomic hand controller for both the ROV and a 5 functions manipulator arm.  Control unit incorporating the power supply unit, and offering a PC screen with either video only, or the combination of video, sonar display and digital still control. Dimensions (mm) : 900 L x 470 H x 600 W. Weight in air : 70 kg excluding optional equipment. Material : polypropylene frame, stainless steel fittings.


Perry Triton WROV XLR 125hp for sale.

Perry Triton medium Workclass ROV XLR 125hp available for immediate sale, dive ready. Complete package (as per manufacturers specification) with ROV, Umbilical, LARS, TMS, Control van, Work van, spare parts package, and all documentation.



5,000m ROV system for sale.

We currently have an ISE ROV system for sale (5,000m depth rated). The system includes the ROV, control van, spares, 1 x 5000m buoyancy block, 1 x 2000m buoyancy block, 1 small winch with 500m soft umbilical. The system is in shallow dive ready condition, it was last used for Drill support in 2012, and at the present time has the 2000m rate buoyancy block,  and is using a small winch with 500m of soft umbilical. The ROV is presently in storage. To convert this ROV back to the original 5000m operating depth, the  5000m buoyancy will need to be fitted, and a suitable LARS, winch and umbilical will be required.


Apache ROV system for sale.

Apache ROV No. 07, rated to 1000m (3000ft). Ready for immediate worldwide delivery. Year of manufacture  2000. Estimated operating hours 1200. Apache ROV with umbilical, full camera suite and Tritech single function manipulator. Control Van and complete control system. Complete Launch and Recovery system (integrated into a single container with the control van; winch provided in LARS is pneumatically driven).


3 x Rig Worker ROVs (R3000 series) for sale.

These three ROVs are being sold as one package.  The complete package includes a) ROV, Garage, winch and Control van. b) ROV, PDU, Transformers and topside equipment. C) ROV frame and buoyancy and all parts to rebuild the vehicle. d) Assorted spare parts. All of these ROVs will require a maintenance / rebuild programme.  Perhaps making two working systems from the three  units available. Rov size 2.1m(l), 1.4m(w), 1.5m(h). Weight 1650kg. Depth rating 1000m. Hydraulic thrusters, 37kw HPU, Auto depth and heading, Hydraulic manipulators.


Falcon ROV for sale.

This Falcon ROV is in good condition and dive ready.  Vehicle unit with five SI-MCT01 thrusters  ( four vectored horizontals and one vertical). SEAEYE colour video camera, tilt platform and tilt feedback system.  Automatic heading & depth system.  Navigational flux-gate compass and integral solid state rate sensor.  Two dimmable 75 watt lighting units.  Standard Surface Control Unit c/w a 15” colour TFT monitor (dual input).  Surface power supply unit.  Hand Control Unit.  Video Overlay system. 8.5kg of lead ballast.  Additional Buoyancy Module providing 16kg of additional payload.  Umbilical Cable (16mm OD) 450 meters (Extra twisted pair provided) : Proprietary lightweight cable, Thermoplastic Elstomer high abrasion resistance.  Vectran strain member- 530 kg breaking strain.  4 screened twisted pairs,  4 x Power Conductors,  1 x Discrete Conductor for CP Reference.  Thermoplastic Elstomer inner and outer sleeving with embedded Vectran strength member .Hand Operated Umbilical Winch - 450m capacity 11, 14 or 16mm Cable .10m Deck Cable from Winch to Surface Unit (umbilical cable). Upgrade to two standard LED lights. Additional (third) LED Lamp Unit. Single Function Manipulator Kit. Cathodic Potential (CP) Probe Kit. SI AUX IP01 - Auxiliary Input Node RS485 (CP Interface). CP PROBE - contact probe (includes lead)  FI-KIT02 - CP integration kit including brackets and factory installation. Contact Probe Tip (replaceable item) Cygnus Ultrasonic Thickness Gauge. Cygnus ROV UT Gauge (1000m rated). Imagenex 881A Multi Frequency Imaging Sonar. FI-KIT09 881ª Sonar Integration Kit Falcon Field Maintenance Kit.



Hyball Standard ROV system for sale.

Dive ready and in excellent condition. Only 50 hours of use to date. New on-board JVC Camera, and a second Low light B/W Camera. Both fitted in 2003 by Hydrovision. 150m of Standard cable, and 300m of neutrally buoyant cable with it. Two spare thruster units. Manipulator. Also a Sonar connector (which would allow for a Tritech Seaprince Sonar with an old style Surface control unit (SCU3) to be purchased and fitted. Training course available.



Phantom ROV for sale.

Deep Ocean XTL with a Phantom control unit. Equipped with two lights, depth sensor, compass, zoom camera with TPZ control. Includes two 500' tethers, and a booster box for the lights and a small spares kit. It is 110VAC, and  was used for about a year and then stored.  Good condition.



Mariner ROV (Ippodamus) for sale.

Survey - Observation – Inspection Class ROV with a depth rating 950m. Manufactured 2009. The system has recently been fully serviced and inspected by the manufacturer, and is in very good condition. Less than 100 hours use (one project). In addition to the basic ROV/ Surface Control Unit, components, and 350m umbilical cable, this ROV has the following extra equipment fitted: Double Screen Display (monitoring of all ROV functions). Super SeaKing Scanning Sonar Dual Frequency (Tritech). Tritech SeaHub - Sensor Interface for PC or Laptop Computer. PA-500 Altimeter (Tritech). Manipulator dual control / 3 fingers (control from surface console). Auto heading and auto depth. High-resolution colour camera with green lazer. Video overlay system. Panasonic DVD Recorder/ Edit Capability. Complete and comprehensive spares package. Enclosed Aluminium Trailer/workshop (This is a complete operational package that can be mobilized in hours). Will sell with or without the trailer. Drum for the cable is Available (service required).



AC-ROV (Model SP-50).

The smallest inspection class Rov in the market place (190mm fly through). The AC-ROV is more powerful, more robust and a more cost effective solution than all other Rovs in its class. This Rov can hover, circle, rotate on its axis, and move in any direction the target requires. Operating depth of 75-100m. A total system carry-case weight of under 15kg. The unit has been designed for inspection in hazardous and confined areas. Rov Size: 203mm x 152mm x 146mm. Weight: 3kg. Camera: Colour CCD. Thrusters: 6 thrusters (4 x horizontal vectored, 2 x vertical). Lights: 4 cluster leds (variable intensity). System Power: 300 watt (0.4hp). Payload: 300g. Inputs: 90/260vac (47/63Hz) or 124/370vdc. System includes: AC-ROV, Control Unit, Tether Reel with 80m tether, Monitor, Spacemouse control, Depth Sensor, Video Grabber cable - plugs into Laptop/PC for recording, Storm Case, Instruction Manual. This ROV System is a new build, and delivered dive ready.



ROV Builder RB150.

A small eyeball ROV in brand new condition, direct from the factory and never used. Two function manipulator, colour camera, 3  x powerful LED lights, and 150m cable.




Other ROVs also available. Please contact us with your requirement.



Tel: England (+44) 1285.760620.




Other ROV secondhand equipment available.

Please contact us with your requirements.

Submersible Electric Motors.

Submersible motors, Subsea motors, ROV motors, ROV HPUs (for sale).

Silvercrest/SME specialize in the bespoke manufacturing of submersible motors, HPU's, and pumps for use on Rovs, subsea trenchers, subsea ploughs, dredgers and water lift pump systems, for use in the offshore Oil and Gas and Telecommunications industries. We offer a range of submersible motors (5hp to 1500hp) with a choice of voltages (ranging from 380vac to 6600vac) for use subsea to depths of 6000msw. All of these motors are available in either SS316, Duplex, Super Duplex, or Hard Anodized Aluminium finish. We can also design and build motors to suit your individual and special project requirements. In addition we refurbish, rewire, and service a wide range of submersible motors. Our product is excellent, our prices very competitive, and our delivery schedule the best in the industry.We recently delivered ten 260kW, 3000VAC, double ended, 2-pole, stainless steel bodied motors to a subsea operator, for use on their fleet of sub-sea trenchers. This was a bespoke order that was completed in just six weeks from receipt of order. In addition we also recently manufactured five (5) 400kw motors for SMD. We supply submersible motors, HPUs, and motor-pump sets to SMD, CTC Marine, Fugro, Impresub, Saab SeaEye, LDtravocean, and other subsea companies.

We would be very pleased to discuss the details of your motor / pump requirements in order to produce a detailed quotation for you.

Contact: Silvercrest / SME





New 65Hp submersible Rov HPU for sale.

The motor-pump set is brand new, direct from our factory and has been constructed specifically for this purpose.


SME ROV12-2, 48kW 65HP, 2-pole, 3000/3/50, Aluminium Construction ROV Motor fitted with Rexroth A10VO28DFR1/31R-PSC62N00 Hydraulic Pump. Burton Connector for Power Leads. Fitted with Temperature Sensing and Water Detectors.


Mil Spec hard-anodised T6 hardened 6061 grade Aluminium construction, with all 316 hardware.  Rotor dynamically balanced.  Oil filled externally compensated.  Fully factory performance tested on Dynamometer at rated voltage and frequency.  Subsea connectors for power and instrumentation.  Designed for maximum electrical efficiencies to reduce full load currents.  Motor designed for low operating temperatures to extend reliable lifespan.  Specialised winding insulation system to ensure long operating life, even under the most arduous of duties.  On Deck operation generally allowable.

Location. UK


65hp HPU.jpeg


65HP HPU 2.jpeg



Tel: (+44) 1285 760620





ROVs are an excellent tool for underwater inspection, designed for accessing awkward and inaccessible areas to clearly reveal damage or defects. Our small eyeball/inspection ROVs have vertical and horizontal thrusters, are neutrally buoyant, and have excellent manoeuvrability. These small ROVs are tethered, and can operate at a depth of 100 metres (or deeper), providing excellent colour video that can be recorded and kept for future reference.

Our small eyeballs ROVs are suitable for all underwater inspections in fresh water or seawater. They offer numerous applications, for example:  damage inspection for insurance companies, environmental, insurance, pre-disturbance archaeological surveys and assessments, wreck survey, search, salvage and recovery, water tank inspections, pipeline inspection, reservoir inspection, harbour survey, ship hull inspection clearance and recovery, dock gate inspections, piling inspection, offshore structures survey, bridge inspection and many aspects of police search, location, underwater security and recoveries, diver support and underwater film production. Communication between the ROV (underwater) and the surface operator is through the umbilical that provides a real time flow of information including video footage.

These small ROVs offer the most effective, safest and economical way to carry out subsea inspection work. Available for rapid mobilization and deployment. with minimal operating space being needed. Mobilisation can be by road or sea. Operational from shore/jetty, from a vehicle, or small support vessel/work boat.

An ROV is effectively an underwater robot that can be used for inspections, recoveries, cable burial, search and rescue and much more. More business sectors are realising their benefits, and ROVs are now used in oceanography, fishing, civil engineering and security. An ROV offers a quick and safe inspection solution, which removes the risks of other inspection methods and can save time and money. Ideal for Harbour Authorities, inshore and offshore applications

We have a wide selection of ROVs available on rental or contract options.



Tel: England (+44) 1285. 760620.









This ROV is a mobile underwater camera system, controlled from the surface and capable of staying submerged indefinitely.  The ROV is suited to a variety of subsea applications including pipeline inspections, river and ocean searches, dam and tunnel surveys, oil and gas platform work, fish farming, homeland security operations, and underwater recreation.  The ROV will dramatically reduce underwater search time, as well as the risk and high cost often associated with diving operations.  With suitable sensors fitted, the ROV is capable of locating weapons, unexploded ordnance, pipelines, buried treasure, and other metal objects that may be underwater.

The Titan Commando ROV is an inspection ROV made from an aluminium body with a stainless steel protection frame. 600ft Kevlar umbilical cable. Control box. Three thrusters. Tungsten Halogen lights. Super wide-angle camera. Camera tilt function up/down. Camera lock. Sonar system (option). The unit is packed in three carry cases, (ROV, umbilical, and equipment).

The Titan ROV is ideal for underwater surveys and inspections, search and rescue, security and recreation, homeland security, harbour and ship security operations. Easily deployed from a small workboat, or a surface platform, by a one or two-man crew. These ROVs have been used around the world from Scandinavia to the Caribbean Sea.

Dive ready and tested.

ROV shipping boxes (inches)

26 x 24 x 20 (134 lbs). Rov and controller

27 x 21 x 11 (57 lbs). Spare equipment case.

24 x 15 x 24 (138 lbs). Umbilical and hand winch.  






Cougar ROV for Charter.

Cougar Compact ROV System – 300m depth rated.



Our Cougar ROV (remotely operated vehicle) is configured to be a compact free-swimming offshore ROV system. It comes complete with A60 Zone 2 control container. and A60 Zone 2 gravity based crane LARS (launch & recovery system). The ROV is ideal for close and general visual inspections of client subsea assets and construction support.

Maximum operating depth: 300 metres

3 simultaneous video channels, option to fit 4 cameras

Kongsberg Colour Zoom / Focus Camera

Kongsberg Lowlight Black and white camera

80 Kg payload

4 Vectored and two vertical Seaeye SM7M thrusters with velocity feedback

Tritech Super Seaprince DST Sonar

1200 watts of variable intensity LED lighting positioned on the camera tilt platform and chassis

Integral video overlay

Zone 2 Control Container

Zone 2 Gravity based crane mounted Launch and Recovery System (LARS)

Length 1300 mm, Height 785 mm. 900 mm (with tooling skid), Width 915 mm.

Thrust Fwd 170 kg, Thrust Lateral 120 kg, Thrust Vertical 110 kg.

Weight 300 kg without tooling skid

Payload 80 kg


SeaEye Falcon ROV for charter.


Falcon Pus ROV System – 1000m depth rated. 



The Falcon Plus is configured to be a free swimming offshore ROV (remotely operated vehicle). The system comes complete with control container and crane mounted LARS (launch & recovery system). The Falcon Plus incorporates subsea and surface fibre optic multiplexers and an umbilical for the transmission of both video and data over fibre optics between the surface and the vehicle.

Specifications of the Falcon DR ROV:

Video Overlay includes as standard

Compass Heading

Depth in metres or feet

Camera tilt platform position

Auto function status

CP reading (optional)

Odometer Count (optional)

Date and Time

Facility to export data to survey

Length 1000 mm, Height 780 mm, Width 600 mm.

Thrust Fwd 96 kg, Thrust Lateral 56 kg, Thrust Vertical 12.

Weight 130kg

Payload 15 kg

ROV comes complete with

1 x Super Seaprince sonar

1 x Colour camera

1 x Lowlight monochrome camera

3 x 75 Lamps (Additional lamp on request)

 8 x MCT 1 Horizontal Thrusters

1 x MCT 1 Vertical Thruster

1 x Remote spares package

Safe area control container

Safe area electric winch with crane on LARS skid



Silvercrest/SME specialize in the bespoke manufacturing of submersible motors, and pumps for use on Rovs, subsea trenchers, subsea ploughs, dredgers and water lift pump systems, for use in the offshore Oil and Gas and Telecommunications industries. We offer a range of high quality submersible motors (5hp to 1500hp, 380 to 6000volts, 3000m depth rated) for use in the more popular classes of subsea ploughs and Rovs. All of these motors are available in either SS316 or Hard Anodized Aluminium finish.

We will design and build motors to suit your individual and special project requirements. In addition we refurbish and service a wide range of submersible motors. Our product is excellent, our prices very competitive, and our delivery schedule the best in the industry. We recently delivered ten 260kW, 3000VAC, double ended, 2-pole, stainless steel bodied motors to CTC Marine Projects Ltd, for use on their fleet of sub-sea trenchers. This was a bespoke order that was completed in just six weeks from receipt of order.

Other motors recently delivered have included 300Kw submersible motors to SMD, as well as 75Hp and 100hp motors to various Rov operators.

We would be very happy to discuss the details of your motor / pump requirements in order to produce a detailed quotation for you. 

Some recent examples:

Silvercrest/SME have supplied six 400kw ROV20-4 motors, 4pole/3300vac/3 phase/60hz, stainless steel construction. Single ended for fitment with Sauer hydraulic pumps Series-90-L250. Rated for 3000m depth operations. Also three (3) three ROV204 submersible motors (300kw/4 pole/3300vac/3 phase/60hz) with stainless steel construction, and double ended for fitment with Sauer hydraulic pumps to SMD-Hydrovision. Together with 7.5kw motors for Rov cursor application.

To LD-travocean, Submersible motors to be mounted with water-jetting pumps. SME ROV14-2, 200HP, 150kW, 2- pole, 3000/3/60 motors with Anodised Aluminium Construction. Other subsea motors supplied in SS316 construction.

To Saab SeaEye for their Jaguar ROV.  SME ROV12-2 48kW 65HP 2-pole 3000/3/50 Aluminium Construction ROV motors fitted with Rexroth Hydraulic Pumps.

Ten 260Kw submersible motors with SS316 construction to CTC Marine Projects based in Teeside, England. The motors will be used by CTC on their subsea plough and trenching vehicles worldwide.


ROV 260kW Silvercrest/SME Pump Motor under construction.

The 260kW/ 3000V / 60Hz / 2 pole pump motors (designed specifically for use in the horizontal axis) were fitted with shafts at both ends, in order to mate with three tandem mounted hydraulic pumps on one end and a Hayward Tyler M6 single stage water pump-set on the opposite end. In this 260kW model, rather than using the pivot shoe arrangement, typical of vertically oriented pump-sets, heavy duty tapered roller bearings were fitted to the rotor to manage the water pump induced end-loads. Thus giving a calculated bearing life in excess of 11,000 hours, even when used in the horizontal axis. Depth rating on each motor is 10,000 meters, with oil filled compensation. Motor housings are 316 stainless steel, with Mylar coated windings (the ultimate in winding coating technology) being used in each motor at the request of CTC, giving an insulation rating of >16kV at a temperature of 140 degrees C. 

Silvercrest/SME will bespoke manufacture virtually any shape and size of submersible motor required for subsea operations.





We can offer subsea motors with a wide range of speeds and voltages (including 3000v, 6000v and 10,000v)

We can design and build motors to suit your individual and special project requirements. 

We refurbish and service a wide range of submersible motors. 

Our product is excellent, our prices very competitive, and our delivery

schedule the best in the industry.





A new Saab-SeaEye Jaguar ROV, fitted with our SME ROV12-2, 48kW 65HP, 2-pole, 3000/3/50, aluminium construction ROV submersible motor, and Rexroth hydraulic pump. Fitted with temperature sensing and water detectors. Epoxy coated for protection.

We manufacture and rebuild very large submersible motors for a range of other offshore and subsea companies. These include:Global Marine, CTC, Sonsub, Star Energy, Sulzer Wood, Sulzer, Fugro, Apache, BHP Billiton, Petronas, SMD, Exxon Mobile, Chevron, Perry Slingsby, Subsea7, Bayu Purnama, ISE Ltd, Saudi Aramco, Woodside, PXP. SME has also manufactured a total of seven (7)  6600V motors todate, for three different offshore contracts. Petronas Dulang and Angsi Platforms. Star Energy KG Platform.


Silvercrest / SME design and build specialized subsea motors, and support packages for use on all types of Rovs and underwater vehicles  in the offshore and subsea industry. These submersible motors are usually made to order and vary from 1kW to 1500kW, 400 to 4160 Volts. 50 or 60 Hz, 2-Pole to 8-Pole.

There are two common methods of construction available: -

Stainless steel construction, or Marine Grade aluminium that is Black anodised to resist corrosion. These motors are usually oil filled and pressure compensated. Common operating voltages are between 300 volts and 3300 volts - even for small 5kW motors.

6,000vac and 11,000vac motors also available by special request.

Silvercrest/SME will bespoke manufacture virtually any shape and size of submersible motor required for subsea operation

Certain subsea motors can operate down to depths of 10,000 meters.


SME manufactures new Submersible, Subsea, and Rov motors. 


We manufacture our own laminations, designed specifically to meet the individual requirements of each customer. We do not buy off the shelf standard rotor sets and fit them in a housing, as some other manufacturers will often do. As a result our motors are more efficient and generally ightly smaller, in both diameter and length, than our nearest competitors for any given power


Silvercrest also offer a range of ‘standard’ motors for use in well-established underwater  installations, such as the more popular classes of Rov and subsea ploughs.





Rov and Subsea Plough and Trencher Motors.

Silvercrest  offer an established range of Rov motors ranging from 5HP to 500HP. All of these motors are available in either SS316 or Hard Anodized Aluminium finish. We will also design and build submersible motors to suit your individual requirements and subsea project.

Our motors are in use with most of the major operators worldwide such as Saipem, SMD Hydrovision, Sonsub, CTC Marine Projects, Impresub, Fugro, Thales, MTQ, LD Travocean and Canyon Offshore.


  Silvercrest will bespoke manufacture virtually any shape and size of submersible motor and submersible pump required for subsea operations.

We will be very happy to discuss the details of your  subsea motor / pump requirements in order

to produce a detailed technical quote for you.



Tel: (+44) 1285.760620.




ROV124-100HP Submersible Motor (Curvetech drop-in replacement). Immediate delivery. This is a new unit direct from our factory, 100Hp, 3000v, 60hz, with black anodised aluminium housing. Depth rating 3000m.

100 HP ROV Submersible Motor - Immediately Available.

Silvercrest-SME has placed a 100Hp submersible Rov motor (as illustrated below) on immediate standby, for emergency availability to all Rov operators. The motor has the following specification and is a direct drop in replacement for the Curvetech 100HP unit. The motor is presently set up to receive a Rexroth A10VSO140 pump, but can be modified to accept other pump models if required. The motor is brand new, direct from our factory and has been constructed specifically for this purpose. Location England. Can be shipped immediately by land, sea or airfreight.


ROV124-100HP, 4-pole, 3000v, 60Hz. Mil Spec hard-anodised T6 hardened 6061 grade Aluminium construction, with all 316 hardware. Rotor dynamically balanced. Oil filled externally compensated. Fully performance tested on Dynamometer at rated voltage and frequency. Subsea connectors for power and instrumentation. Designed for maximum electrical efficiencies to reduce full load currents. Motor designed for low operating temperatures to extend reliable lifespan. Specialised winding insulation system to ensure long operating life even under the most arduous of duties. On Deck operation generally allowable.

Power 100 HP. Volts 3000V. Frequency 60 Hz. Poles 4. RPM 1770 RPM. Shaft Woodruff keyed (see attached drawing for detail). Construction Hard Anodized Aluminium 6061-T6. Compensation Oil filled - external-not supplied. Power Connector Burton 5757-1236-002. Sensor Connector SubConn BH-4-M.


Should you have any other motor / pump requirements, please contact us at any time.


Tel (+44) 1285 760620. 



Fiber Optic Products, for use on underwater vehicles, ROVs, and various military applications.

See our information sheets at the bottom of our Company News Page. (Click on the menu button).




Small inspection ROV complete with 400ft umbilical cable.The unit is packed in three carry cases, (ROV, umbilical, and equipment). Complete with thrusters, lights and cameras. Dive ready and tested. Ideal ROV for inshore and Inland diving inspection tasks. Dam inspection and surveys. Harbour and ship security and inspection tasks. Police underwater search operations.

This ROV is a mobile underwater camera system, controlled from the surface and capable of staying submerged indefinitely.  The ROV is suited to a variety of subsea applications including pipeline inspections, river and ocean searches, dam and tunnel surveys, oil and gas platform work, fish farming, homeland security operations, and underwater recreation.  The ROV will dramatically reduce underwater search time, as well as the risk and high cost often associated with diving operations.  With suitable sensors fitted, the ROV is capable of locating weapons, unexploded ordnance, pipelines, buried treasure, and other metal objects that may be underwater.

The Titan Commando ROV is an inspection ROV made from an aluminium body with a stainless steel protection frame. 600ft Kevlar umbilical cable. Control box. Three thrusters. Tungsten Halogen lights. Super wide-angle camera. Camera tilt function up/down. Camera lock. Sonar system (option). The Titan ROV is ideal for underwater surveys and inspections, search and rescue, security and recreation, homeland security, harbour and ship security operations. Easily deployed from a small workboat, or a surface platform, by a one or two-man crew. These ROVs have been used around the world from Scandinavia to the Caribbean Sea.



Falcon DR ROV available for charter. Complete with 1700m umbilical,  sonar, fiber optic video, colour zoom camera, B/W camera, Link Quest tracking, and Video overlay.  Contact us for full details, specification, options, and availability.



ROV'S FOR IMMEDIATE SALE and possible charter.


Please contact us to discuss your requirements.

We can offer other Rovs for sale that are not listed below.

Rovs for Charter and for Hire (long and short term).  

Please contact us for availability, as the listing below is always changing.


MARINER ROV (Ippodamus) for sale.

Survey - Observation – Inspection Class ROV with a depth rating 950m. Manufactured 2009. The system has recently been fully serviced and inspected by the manufacturer, and is in very good condition. Less than 100 hours use (one project). In addition to the basic ROV/ Surface Control Unit, components, and 350m umbilical cable, this ROV has the following extra equipment fitted: Double Screen Display (monitoring of all ROV functions).  Super SeaKing Scanning Sonar Dual Frequency (Tritech). Tritech SeaHub - Sensor Interface for PC or Laptop Computer. PA-500 Altimeter (Tritech). Manipulator dual control / 3 fingers (control from surface console). Auto heading and auto depth. High-resolution colour camera with green lazer. Video overlay system. Panasonic DVD Recorder/ Edit Capability. Complete and comprehensive spares package. Enclosed Aluminium Trailer/workshop (This is a complete operational package that can be mobilized in hours). Will sell with or without the trailer. Drum for the cable is Available (service required).


Vector ROV (Deep Ocean Engineering).                                   

25 hours of use only. Comes with custom-built heavy-duty aluminium travel cases for all components (fitted with forklift lugs) making for easy transportation. High performance, portable, reliable and easy to operate. 5 x high performance brushless thrusters, four vectored and one vertical. Rate gyro stabilized, solid-state magnetic compass unit: resolution +/- 0.1degree, accuracy +/- 0.5degree, update rate 50 mS. Electronic depth sensor: accuracy 0.25% of fsd. Autopilot for auto-heading, auto depth and optional auto-altitude. Lighting: 2 x 250 watt Quartz-halogen lamp units. The control is /Low/Medium/Full. Power requirements: Input 230VAC, 50/60 Hz, 10 kVA, single or 3-phase. Camera unit: DOE 18:1 colour zoom camera unit. Camera tilt platform.


Phantom DHD 2+2 for Sale.  Dependable ROV for offshore inspection and light work tasks. Suitable for operations in strong currents to depths of 600 meters (2000 Feet). Hull # 539 - Date of Manufacture 2008. Used less than 200 hours. DOE Manipulator / Cutter. High Resolution Sony Colour Camera. Sony DVD Recorder / Edit Capability. 3 x Deep Sea Power & Light 250-Watt Lights. 2 x 169 meters (600 ft.) Tethers with wet matable connectors. Umbilicals attachable together for a total of 338 meters (1100 ft.). Complete and comprehensive spares package. Original shipping crates available. Lots of tools, accessories and extras. 24-Foot Enclosed Trailer serves as a workshop, dry storage and for shipping. This is a complete turnkey ROV operational package that can be mobilized in hours.


Cougar XT System. 

Complete with TMS, LARS and control cabin. Call us.

Comanche ROV for sale. Depth rating 2000m.

Comanche incorporates a fully electric, seven thruster propulsion system, configured to provide high thrust and lifting capability. It uses a 3000 Volt, 400 Hz power transmission system from surface to ROV resulting in a small tether, main

lift cable and launch/recovery system. This transmission system makes it particularly suited for long tether excursions and deep live-boating operations. Complete with a 20 ft control cabin, LARS, Tether Management System, and Schilling manipulators.

TRITON Work-class ROV for sale.

Work class ROV with 3000m depth rating (125hp XLR) complete with Control and Workshop Vans, TMS, Umbilical and LARS. Standard specification.  .

AGONUS - 230 HP Work class ROV.

The ROV Agonus is a heavy workclass ROV (230 hp) system, with an operating depth up to 1500 msw. The vehicle is equipped with high-specified equipment and is designed to be very flexible in the range of optional survey equipment and tooling packages, which can be fitted, either underneath or at a side of the vehicle. The vehicle system is designed to be adaptable for future work tasks, which may require additional transducers, hydraulic functions or increased payload. The TMS is designed to the same high level of specifications as the vehicle. The system consists of following units: ROV, TMS, Catcher, Umbilical winch with 200m umbilical attached, Control cabin 20ft, Workshop cabin 20ft.


SIRIO ROV for sale. The Remotely Operated underwater vehicle (ROV) SIRIO in standard configuration, is a small and easy to use multipurpose ROV. Designed for subsea inspection and observation tasks.  A 2F manipulator can be fitted as an optional extra. System has only 300-350 hours working, and is in dive ready condition. The Sirio ROV is available for sale with a 160m umbilical cable, and manual stainless steel umbilical winch. Price: USD 44, 745.


Falcon ROV for sale.

This ROV has been little used, and very well maintained. This Falcon System has been greatly improved over the unit originally supplied by Seaeye. Falcon ROV  (non Fibre Falcon System) comes with: 250m loose standard Seaeye 11mm 3TWP cable. Another loose 175m 4TWP 13.2mm cable. This umbilical is an individually shielded 4TWP construction with power conductors inside. This in line connector length is connected via an adapter to the Surface control / Power Supply Unit. / this enables us to add various lengths if required or attach to the 500m drum. Improved slip-ring winch with 500m special 4TWP 13.2mm cable on a slip ring drum (possible to attach an electric drive motor). This allows the Falcon ROV to perform long tunnel penetrations. 5-function Manipulator. Survey pod installed on the Falcon providing power and comms (TWP) to a third party sensor. Tritech Seaking Sonar with AUX Port to hook up a USBL Transponder, Profilers, Side Scan, Parametric Sub Bottom Profiler. Camera tracking light, 50W Halogen. Umbilical / umbilical handling. Clock latch mechanism that can automatically release the Falcon when in water or being activated by a pull-line. Lots of spare parts. Survey JB containing power supplies and a number of connectors for third party sensors and lights. ROV has been upgraded with Data-Out Function License, New Modern navigation board. Pitch and roll display, Video board for 2 x Cameras and zoom and Focus Function plus one relay to switch function. All Thrusters recently serviced by Seaeye to the newest specification and extended reliability.


Synflex High Pressure hose for sale.

This is new subsea Synflex high pressure hose, never used and still in manufacturers wrapping. Total length 290m. Type 3R80. 3/8 inch. 4000psi.  Contact us for details.


ROV Syntactic foam Buoyancy Blocks for sale.

Large number of Syntactic buoyancy blocks rated to 1000m (3000ft) for sale. Assorted sizes.  Contact us for details.



Vehicle can be Free Fly or tracked. Dive Depth 2500 meters. Horizontal Speed 2.6 knots forward (Tracks 2.25 knots). Complete with control system, cameras, sonar, configurable with USBL tracking system. Extensive tooling package.  Electric Motors. Hydraulic Pumps. Control Center. Spares Van. Launch and Recovery System. Umbilical Winch. A-Frame. Hydraulic Power Unit. 3300meter lift umbilical with one identical spare. Contact us for details.



This a brand new inspection ROV complete with 400ft umbilical cable and control box. The unit is packed in three carry cases, (ROV, umbilical, and equipment). Complete with thrusters, lights and cameras. Dive ready and tested.



This WROV is 125HP (90KW), and depth rated for 2000m, offering high performance, cost effective and reliable subsea operations. Fitted with 7-function Schilling Conan manipulator, 5-function Bennex rate manipulator, electro/hydraulic power pack, 6 x horizontal thrusters, 3 x vertical thrusters, pan and tilt, SIT camera, Tritech sonar. Complete with workshop and control containers, umbilical winch with 500m umbilical fitted, 4 ton A-frame. No TMS. All technical manuals. Spare parts package included. Dive ready. Immediate delivery.


Phantom DHD 2+2 for Sale.

Remote Operated Vehicle with console, control box and ISO transformer. Two-function manipulator/cutter. 550ft wet-mate umbilicals (2 off). Spare ISO transformer. Yanmar 6kW diesel generator and Honda 5.5 kW generator. Comprehensive spares package.  Lots of tools, accessories and extras. 20 Ft. Enclosed Aluminium Trailer / workshop (original shipping crates also available). This is a complete turn-key operational package that can be mobilized in a few hours.


Hyball Offshore ROV system for sale.

Dive ready and in very good condition. Complete with vehicle, Surface control unit and surface monitor, high-resolution colour camera, and low light camera with focus. Various penetrator options for additional equipment and sonar head bracket (Sea Prince sonar available under a separate arrangement). Special 60-degree beam angle halogen lights for perfect illumination. 197m umbilical. Hydrovision technical manuals. Extensive spare parts kit included. Training course available.


LBV150 - ROV.

Small, lightweight Rov with depth rating of 150m (500 ft). Max operating current 2 knots. Length 530 mm. Width 245 mm. Height 254mm. Weight in air 11kg. Protective shell and alloy bumper frame. 4 x Thrusters. Cameras have manual focus control via hand controller (90mm to infinity). Format PAL / NTSC. Camera Tilt 180 degrees. Camera Primary 570 line, view HAD colour 0.2 Lux. Camera Secondary 430 line B/W 0.03 Lux. Lights 50 Watt Quarts Halogen. Manipulator with 40kg lift capacity. Umbilical on reel 150m (500ft). Power supply 240vac/50hz. Integrated Control Console. 15-inch monitor behind a waterproof panel. On-Screen Information displayed: Thruster gain settings, light level, trim On/Off, heading, depth, turns counter, camera angle, water temperature, time, date, user text.


3 x RigWorker ROVs (R3000 series) for sale.

These three ROVs are being sold as one package.  The complete package includes a) ROV, Garage, winch and Control van. b) ROV, PDU, Transformers and topside equipment. C) ROV frame and buoyancy and all parts to rebuild the vehicle. d) Assorted spare parts. All of these ROVs will require a maintenance / rebuild programme.  Perhaps making two working systems from the three units available. Rov size 2.1m(l), 1.4m(w), 1.5m(h). Weight 1650kg. Depth rating 1000m. Hydraulic thrusters, 37kw HPU, Auto depth and heading, Hydraulic manipulators.



Sea Otter ROV for Sale (with 500ft umbilical).

This is a JW Fishers low-cost, high-performance ROV. These ROVs are ideally suited to a variety of applications including pipeline inspections, river and ocean searches, dam surveys, oil and gas platform work, fish farming, and homeland security operations.  The SeaOtter is best suited to working in areas with low to medium currents.  This ROV has front and rear facing colour cameras with pan and tilt. Illumination for the front camera is provided by two very bright 50-watt tungsten halogen bulbs. Lighting for the rear camera is provided by a ring of high intensity LEDs. The SeaOtter-2 has a 500-foot depth rated housing and comes with 250 feet of cable (upgraded to 500ft length on this system that is for sale). System controls are laid out in a high impact waterproof case with an ultra bright 10.4 inch flat screen monitor built into the lid.  Command of the ROV's thrusters, cameras, and lights are managed with a PS2 controller.  A video output jack allows an additional remote monitor to be used simultaneously with the internal flat screen monitor. An internal video amplifier adjusts picture quality to optimise the video for water clarity.  Connect a VCR or DVD recorder and make a permanent record of the underwater scene.  With the internal audio amplifier voice can also recorded with the video picture.


SeaSprite inspection class ROV. 

Ideal for underwater inspections, inshore security operations, and inspection in hazardous and confined areas. The SeaSprite is a compact, powerful, robust and cost effective inspection and observation class ROV with an operating depth of 300m. The system is designed to be transportable in hand carry transport cases. Small and light enough for one operator to launch and recover from the water. Size 300mm x 300mm x 350mm, weight 25kg in air. Colour camera minimum 570 TVL, 0.3lux. Rear camera mono CCD (NTSC) minimum 530 TVL, 0.1lux. 6 x thrusters (4 x horizontal vectored, 2 x vertical). Lights 4 x cluster LEDs (variable intensity in steps). Control 3-axis joystick + 1 axis joystick for depth. Auto Heading and Auto Depth functions. Sensors for Depth, Compass, Temperature, water ingress. 2 - function manipulator. System Power 1000 watt / 90/260VAC x 47/63Hz. USBL position-tracking system (optional).     



This Videoray Pro 3-XE Rov has only 42 hours on the clock and is in “as new condition” and dive ready. Total System Size and Weight is 60 kgs, packed in two water-tight Pelican cases. Rov dimensions: 30.5 x 22.5 x 21 cm. Rov weight: 3.8 kgs. Rov depth rating: 152m. The Pro 3-XE incorporates an integrated 15-inch display monitor that will display both video and a computer screen simultaneously in PAL. Forward facing wide angle color camera PAL (570 lines of resolution and 0.3 lux. Variable control tilt with 180 degree vertical field of view. Wide focus range).  Rear facing black & white camera - 430 lines 0.1 lux. Two forward 20 watt high efficiency halogen lights. Rear ultra high-intensity LED light array. Two horizontal thrusters with 60 mm propellers and guards. One vertical thruster. Control console with 15 inch integrated video display. Video display tilt adjustment for optimal viewing angle. LCD depth gauge display. LCD compass with heading display. LCD cumulative hour meter display. Composite video output. Option to superimpose date, time, depth and heading information on video display. Audio annotation microphone for simultaneous recording – hard wired into console (Recording directly on to VHS cassette or DVD). User supplied PC or laptop also records data simultaneously and can capture stills. Joystick controls for horizontal movement and third axis controls. Third axis joystick control (selectable for depth, camera tilt, lights and manipulator). Vertical depth control with Auto Depth. Lighting control. Camera tilt and focus controls. Front and rear camera toggle. Tether Deployment System with 152 m negative tether, with an extension of 40 m Professional Performance Tether  (total 192 m). Maximum voltage in tether is 48 volts DC. Owners Manual. Operations and Maintenance Log Book. Brass Ballast Weight Set. Calibration Tool. Spare Parts (O-rings, thruster blocks, screws, nuts, globes). Basic Tool Kit.


SLIM Rov for sale.

Good condition and dive ready. Complete with vehicle, 300m umbilical, surface control station, container and spare parts. Recently upgraded electronics. 8 x 0.5hp oil filled thrusters. Length 107cm, width 60cm, height 65cm, weight in air 100kg. Speed 2.5kts. Maximum operational depth 720m. Auto depth, auto heading, auto pilot. SIT camera, colour camera, manipulator/grab. 


A new build 45kW (60 HP), Light Work Class vehicle with superb technical specification. Depth Rating: 1000m, 2000m & 3000m options. Delivery six months from order.   Contact us for full technical details.





This Rov is a new build and comes as a complete operational package with vehicle, control cabin, and LARS. Operational depth 1000m (2000m option). Delivery sixteen weeks. Length 2500mm. Width 1450mm. Height 1800mm. Weight In-air 2400 kgs. Speed 3.5 knots. Standard Power Pack 125hp (175HP available). 94kw/125hp shaft output power, 3 phase, 4 pole, 3KV motor, oil filled and compensated. Vickers piston pump, output 220lpm @ 200bar. Video & Telemetry System. Underwater Lights. FluxGate Compass and Integrated Gyro System. Tritech SeaKing DFS Sonar. Tritech SeaKing PA200-20. Depth Transducer. Auto Heading, Depth, Altitude & Turn Rate. 7-Function Manipulator. 5-Function Grabber Arm. Hydraulic Tooling Manifold. Hydraulic Pan & Tilt. CCD Colour Camera. CCD Monochrome Camera. Aramid umbilical 41mm, length 1300m. Control Cabin. . Contact us for details. 


Heavy Duty TMS.

Subsea deployment cage (TMS) side entry, with electro-optic umbilical cable coiled and stored on a electro-hydraulic winch. At operating depth a powered drum feeds the tether out as the Rov exits the cage. TMS/cage dimensions: Length 3m. Width 2m. Height 3.6m. Weight in air 3.5 tons. Structure: aluminium and titanium. Installed hydraulic power unit 10HP. Flying tether: length 100m (11 power conductors, 3 twisted pairs, 3 coaxial cables, 7 low voltage conductors). Pan and tilt mounted video camera: -1 x CCD monochrome video camera (not fitted). Lights: 2 x 250 W, halogen type (not fitted). Depth sensor. Paid out tether length counter. A refit programme will be required to restore the TMS to working order. 

Phantom Rov.

Very good condition. 2 x aft thrusters, 2 x Lateral thrusters, 1 x Vertical thruster. High-resolution colour video camera (auto focus) with pan and tilt actuator. 2 x 250w Lights. Stainless steel protection frame. Vehicle weight 73kg. Power input can be selected from 100vac to 250vac, 50/60hz. Fluxgate compass, depth gauge, auto heading, auto depth. Surface control unit, hand controller with joysticks, and TV monitor. Umbilical cable 600ft. 

Apache Rov.

In working condition and dive ready. Depth rated to 1000m. The package consists of a basic Apache Rov, 75m of surface umbilical, surface control unit, surface transformer, tool kit, spare parts, and technical manuals. Sonar, cameras and manipulator available at additional cost. .

Hyball Spares Package for sale.

A large package of spare parts including Field Maintenance Kit, 'O' Ring Kit, manual, Thruster Re-Build Kit, PCB Spares Kit - Vehicle, PCB Spares Kit - Surface Unit, Hand Controller assembly with Cable, Thruster Assembly Power Module Assembly, Vacuum Valve Assembly, Pressure Transducer Assembly, Motor Gearbox Camera Rotate Assembly, Compass Assembly, Vacuum Pump & Weights, Topside Control Unit, Umbilical 300m. Plus lots more. 

BS -ROV (400).

This Rov has an operational depth of 400m (1200ft), and was manufactured by Comex. Three thrusters 0.5Hp each (one vertical and two horizontal). Video camera hi-sensitive 10 to 100000 Lux. 2 x lights each 250w. Sounder. Compass. Depth meter. Dimensions: length 76cm, width 67cm, height 51cm. Total weight: 60kg. Umbilical cable simple coaxial type KX4 (length 300m), diameter 11mm, weight: 17kg/100 m. Surface control system includes electronic control box, joystick, camera focus, water intake alarm, auto-altitude button, auto-cap button. Colour monitor 9" (PAL and SECAM). 

New Rov Umbilical (100m length).

This new / unused Rov umbilical is in storage, and in excellent condition. The length is approximately 100m. This tether is wound onto a storage drum. Umbilical length 100m. O.D. 31mm. 11 x power conductors. 3 x twisted pairs. 3 x coaxial cables. 7 x low voltage conductors. 

Sprint 101 Rov.

Good condition and dive ready. Operational depth 300m. Manufactured in Norway. Includes vehicle, surface control unit, umbilical and spares parts. 5 x thrusters (0.45Hp each). Maximum speed 2.5kts. 2 x video cameras. 1 x still camera. 2 x strobe lights. 3 x subsea lights (250w each). Recorded data onto video. Power requirements 193-480vac/47-63Hz/three phase. .


Recently upgraded, in good condition and dive ready. This system includes a container (EEX), A- frame and TMS. Operating depth 500m. The Rov system has a new, modern control system with a lot of very nice features. Also new thrusters. The system is ideal for subsea inspection and survey work. 

Cherokee Rov.

Built by Sub-Atlantic. Please contact us for details.

Phantom Ultimate Rov fully updated with new flying tether.

Depth rating 2500ft (800m). Control console, power transformer (220vac three phase), spares, broadcast quality video camera (ROS high resolution colour camera with zoom), pan & tilt unit, 2x 250w lights, 4-function manipulator, sediment blower, and Imagenix sonar. Bandit winch with 2000ft of double armour cable. Rov weight: 800lbs. Rov dimensions: 3ft(h) x 4ft(w) x 5ft(l). Excellent package in dive ready condition.

Super Scorpio Type Rov (100Hp).

A heavy-duty underwater vehicle designed to carry out a wide variety of recovery, observation and manipulator tasks to a water depth of 1000m. Equipped with Sonar, TV cameras, lights, manipulators and other specialised underwater survey equipment. The ROV will also provide electrical and hydraulic interfacing for general purpose and support tooling. It is capable of free swimming or operating from a heavy-duty underwater garage (TMS) via a 150m buoyant tether umbilical. The system comprises of the Power Distribution Package, Control and Display Console, Winch Assembly, Umbilical and the Vehicle itself. The equipment requires a stable power supply of 380 - 480v, 3-phase, 60Hz at 180kva.

VideoRay Rov.

Operational depth 250ft. This is a very small lightweight Rov (weight in air 8lbs). Fitted with colour video camera, two external lights, and three thrusters. An ideal Rov for operations from small boats or from the back of a vehicle. Excellent condition, as new.

Scorpion Rov.

Built by Perry. 75Hp vehicle rated to 1000m (3000ft), two manipulators, cameras, and sonar. Complete system available with control container, workshop container, TMS, and LARS, dive ready.


The smallest inspection class Rov in the market place (190mm fly through). This Rov is more powerful, more robust and a more cost effective solution than all other Rovs in its class. This Rov can hover, circle, rotate on its axis, and move in any direction the target requires. Operating depth of 75-100m. A total system carry-case weight of under 15kg. The unit has been designed for inspection in hazardous and confined areas. Rov Size: 203mm x 152mm x 146mm. Weight: 3kg. Camera: Colour CCD. Thrusters: 6 thrusters (4 x horizontal vectored, 2 x vertical). Lights: 4 cluster leds (variable intensity). Tether: Options to 80m with hand reel. Tether Connection: Top, back or bottom. System Power: 300 watt (0.4hp). Payload: 300g. Inputs: 90/260vac (47/63Hz) or 124/370vdc.

SeaEye Tiger Rov.

Tiger Rov system (operational depth 600m) which has only 85 in-water hours over three dives, and comprises the following main components. Seaeye Tiger Rov vehicle. Launch & Recovery system (Lars) + payout system (main umbilical 200m). Garage - TMS. Spare parts, manuals, electrical drawings, electronic schematics, ancillary tools and equipment. 

All Rovs are sold " as is where is " unless agreed otherwise. These Rovs are secondhand, and generally will be dive ready after a routine maintenance or refit programme. Silvercrest can arrange Rov Maintenance, and Rov Pilot Training courses for purchasers. Rov refit and certification programmes can also be provided. Further information available on request. 

The list of ROVs available for sale and charter changes daily.

Please contact us to discuss your Rov requirements. We are happy to offer a wide range of ideas and suggestions that will assist your underwater project.


(Keep scrolling down for more information on all Rovs).



ORION 60HP Type: 60 HP (45 kW), Light Work Class Rov. Depth Rating: 1000m, 2000m, 3000m options.

Work Capabilities:   Drill Support , Diver Support , Touch Down Monitoring, Pre / Post Surveys, Structural Inspection & Cleaning,  Salvage, Seabed & Route Survey, Lay Barge Support, Plough Support, Trencher Support , Light Construction, CP survey, Pipeline Survey, Platform Survey .

Total Power : 45kW (60HP), Volts   460 / 3000VAC, Amps   90 Amps (ROV), Frequency   50/60Hz (Optional).

Dimensions: Length  1882 mm, Width  1500 mm, Height  1350 mm, Mass in Air (ROV)  1000 kg (Nominal).

Performance: Forward    1.75 m / s, Lateral   1.5 m / s, Vertical   1.0 m/s, Turns Rate   120 Degs / s

Payload:  Standard  200 kgs, Additional   100 kgs, Thru Frame Lift  1500 kgs.

Frame:  SS316 & Al T6061

Propulsion:  Type: 3 Phase Induction, Model:  SDE 300, Motor:  ROV54-6-400-4, Electrical Power:    4.3kW , Speed Control:   AC VFD 695V. Speed     0-750RPM, Voltage:   400VAC  (@ Motor). Frequency:   0-50Hz. Diameter: Ǿ 300mm. Blades: 3.  Horizontal : 4 x Vectored. Vertical2 vectored.  1 Vertical in Tunnel.

Aux Hydraulic Power Pack  x 1: SDE 10kW / 3kV / 60Hz / 4 pole hydraulic Power-pack for manipulators & tooling.

Auxiliary Hydraulic Valve Pack x 2 Type:    General Function . Model:    SDE 10 Stn x 2 . Valves : Wandfluh NG3-Mini. Power:  24VDC. Control:  RS485 'Intelligent'. Pressure:  200BAR (Adjustable). Flow:  Proportional.

Video: Video channels  Fibre Optic (SM- MM) 8

Lighting:  300W / 120VAC - Variable Intensity   x   6

Telemetry System:  Transmission :  Focal 907 F.O. Dual Fibre. Control:  Siemens PLC . Channels: 12 x RS232, 12 x RS485, 1 x 4-20 mA, 1 x Arcnet.

Control & Navigation:  SDE SF1000 PLC Control System . Flux Gate Compass (gyro optional). Tritech Seaking Sonar.   Digital depth transducer .Auto Heading. Auto Depth. Auto Altitude. Turns Rate.

Manipulators & Tooling: Hydrolek 7 Function, Rate Control (Std), Hydrolek 4 Function Rate Grabber (Std) , SDE 10 Stn Hyd: Valve Pack / 200 Bar , Rigmaster 5F Rate Control (Optional) , Orion 7PE Position Control (Optional) .

Cameras (Std Fit). Near SIT Low Light Monochrome. Colour CCD . Rear Colour or Monochrome CCD.1

Cameras (Optional): Stills, SIT, Boom Cameras, Colour CCD Zoom, Manipulator Camera.

Pan & Tilt: Electric Pan & Tilt, 24VDC - Heavy Duty . Electric Tilt, 24VDC - Heavy Duty .

Sensors (Wired as Standard): Manipulator 1,  Manipulator 2, Gyro, Sonar - RS232 or RS485 , Sonar - Arcnet , Aux Reservoir Comp 1 , Aux HPU Motor Temp 1 Comp Levels, TSS 440 or Dual 440/350 , Digiquartz, Doppler , USBL, Profilers , Fiber Optic Video / Data Telemetry System , Altimeter EchoSounder                             

Sensors (Optional): CP Probes , Bathymetrics, FMD , Side Scan Sonar , Inertial Navigation System, User Definable Interfaces 1.5kW / 120VAC, User Definable Interfaces 1.0kW / 24VDC

Control / Workshop Container . (Zone 2 Optional)

TMS (Optional)

Launch & Recovery System (Optional)

Umbilical: 1000m  Aramide Armoured,  SWL 33 x Power cores ,  6 x FO SM + MM in SS tube. 2000m and 3000m Options available .


125 HP WORK CLASS ROV (for sale).  

This Rov is a new build and comes as a complete operational package with vehicle, control cabin, and LARS. Operational depth options are 1000m (2000m depth option available). TMS not included but available as an optional extra.  

Delivery and Price on application.      

125 HP Workclass Rov.    


                                                      Work Capabilities :Drill Support, Construction Support , Cable and Pipeline Pre and Post  Lay,Survey,Platform Inspection and Cleaning , Salvage and Oceanographic Survey, Jacket Inspection and Cleaning, Special Tooling, Pipe Lay Barge Support , Suction Anchor Installation, Anode Installation.


Depth Rating                          Standard Depth Rating 1,000 metres .  Optional Depth Rating 2,000 and 3000 metres

Total Power Rating                 125hp (option of 150Hp and 200Hp)

Dimensions & Weight             Length 2,500 mm ,  Width 1,450 mm, Height 1,800 mm,  Weight In-air 2,400 kgs

Performance                            Forward 700 kgf 3.5 knots ,  Lateral 550 kgf 3.0 knots,  Vertical 500 kgf 1.5 knots 

Payload of Standard Vehicle   150 kgs . Optional Additional Payload 50 kgs

Through Frame Lift                  2,500 kgs


Propulsion System                 7 350mm diameter 10kw/13.5hp hydraulic thrusters  individually servo valve controlled

Vectored                             4 x 350 mm Ø thrusters

Vertical                               3 x 350 mm Ø thrusters

Standard Power Pack           125hp (175HP available). 94kw/125hp shaft output power, 3 phase, 4 pole, 3KV  motor, oil filled and compensated. Vickers piston pump, output 220lpm @ 200bar.

Video & Telemetry System  (Fiber Optic optional fit).Transmission via fibre optics and copper. Fiber Optic, 3 video + 6 RS 232 / 485 channels. Copper, 3 Video + 8 Data Lines. Real-time Video Channels, 3 on Coax / 3 on Fibre.

Lighting                            2Kw available from 4 x 500 watt dimmer channels. 250/500 watt 3000m Rated Lights x 4

Control & Navigation         Flux Gate Compass and Integrated Rate Gyro System.Tritech SeaKing DFS Sonar system. Tritech SeaKing PA200-20.Depth Transducer System.Heading, Depth, Altitude & Turn Rate .

Standard Components        7-Function Rate Manipulator. 5-Function Rate Grabber Arm. 10 Station Solenoid Valve Pack. Hydraulic Tooling Manifold. Hydraulic Tooling Servo Valve. Hydraulic Pan & Tilt. CCD Colour Camera. CCD Monochrome Camera.

Power Packs & Tooling Interfaces Hydraulic Power Pack 125hp

(Optional extras)                       Tooling Power Pack 50hp

                                                      Schilling 7-Function Titan T3

                                                      Schilling 5-Function RigMaster Grabber Arm

                                                      Guide Wire Cutter

                                                      75mm diameter Wire Rope Cutter

                                                      Disc Cutter / Grinder

                                                      API Standard Hot Stabs

                                                      API Torque Tools

                                                      Standard AX / VX Ring Tools

                                                      Special tooling available requirements on request.

Sensor Interfaces (optional fit)         Prizm or Focal Single Mode Video/Data Transmission, 8 Video + 16 Data Channels, Fiber Optic Gyro Compass with Pitch and Roll Sensors, TSS Pipe Tracker, CP Inspection Sensors, BATHY Hi-Resolution Depth and Altitude Sensor , DHSS Dual Scanning Sonar System,  USBL ,  FMD,  Side scanner sonar , Spare Bulkhead Connectors. User Power Supplies - 1kw @115VAC,  750VA @ 24vdc 

The standard Aramid umbilical is 41mm in diameter and has the following cores:

                                          15 x 4mm sq 3kv Rated Power and Earth Cores

                                          3 x 75 ohm Coaxial

                                          4 x Screened Twisted Quads

                                          4 Single + 4 Multi Mode Fibres in a common loose tube

                                          Standard length 1,300 meters. 

CONTROL CABIN . A60 ( ZONE2 OPTIONAL). Length 6,000 mm,  Width 2,440 mm, Height 2,774 mm,              Shipping Weight 10,000 kgs

 LARS . Length 6,000 mm,  Width 2,440 mm, Height (shipping) 2,774 mm, Height (operational) 6,000 mm , Shipping Weight 15,000 kgs




AC-ROV. (Possibly the best small Rov in the market).

The smallest inspection class ROV in the market place (190mm fly through). The AC-ROV is more powerful, more robust and a more cost effective solution than all other ROVs in its class.




These facts however are secondary to the real capability of the AC-ROV. All underwater ROVs have a flight pattern that reflects the movement of an aeroplane (3 degrees of movement) - this means that when inspecting or observing a target the ROV must constantly move in and then away to take up a fresh viewing position. The AC-ROV however has the underwater flight pattern of a helicopter - this allows the ROV to hover, circle, rotate on its axis and move in any direction the target requires. This breakthrough is achieved by six internally housed thrusters that produce five degrees of movement.

With an operating depth of 75-100m, a total system carry case weight of under 15kg, and a service life of 200-300 hours at 100% duty (continuous full depth & full speed), the AC-ROV has been designed for inspection in hazardous and confined areas.




Model: SP50

Size: 203mm x 152mm x 146mm (8" x 6" x 5.75")

Weight: 3kg (6.6lbs)

Depth Rating: 75msw

Camera: Colour CCD

Thrusters: 6 thrusters (4 x horizontal vectored, 2 x vertical)

Lights: 4 cluster LEDs (variable intensity)

Control: 5 axis SPACEMOUSE (LH or RH) 8 function buttons

Monitor: 5.6" colour TFT LCD

Video: Overlay Date, Time, Depth (optional)

Sensors: Temperature and water ingress

Tether: Options to 80m with hand reel

Tether Connection: Top, back or bottom

System Power: 300 watt (0.4hp)

Payload: 300g (8oz)

Inputs: 90/260vac x 47/63Hz or 124/370vdc

Outputs: Video 1, Video 2, Diagnostic

Handling: Under 15kg (complete system). 490mm x 380mm x 190mm

Options: Rear View Camera and lights

Depth sensor


Slip ring reels




The AC-ROV has a two- function manipulator (option). The manipulator combines grip and full continuous wrist rotate via a ground breaking drive-train, resulting in the smallest two-function manipulator in the ROV market. Consisting of titanium, aluminium, stainless steel and plastic components, the AC-ROV micro-manipulator system comes completely integrated into its own bottom buoyancy block. There are no underwater cable connections thus limiting snagging potential, while the integrated nature of manipulator and block gives the system inherent strength and robustness - a feature demonstrated by all AC-ROV components. Simply remove the standard bottom block from your AC-ROV and fit the manipulator block, the manipulator is 100% interchangeable between individual AC-ROV units, giving maximum functionality and cost savings. Topside control is a thumb activated one handed joystick controller that simply connects directly to the control box without need for modification, with all manipulator operations viewed via the state of the art camera system. Two and three jaw options are available and customers can specify special gripper heads for specific jobs. Three screws secure the jaw assembly to the arm and change-out could not be easier.


1. Flight assist controls include; Flight Freeze & Un-freeze / Progressive +/- Vertical Trim / Progressive +/- Pitch / 3 stage Power Increment. All these functions are programmed on the hand controller. Light dimmers are incorporated on the control box.

2. The AC-ROV thruster does not have a centre and the inward pointing blades do not meet. The full-bore unrestricted flow path maximises thrust and is relatively self-clearing in weed type environments.

3. The tether cable and connectors are field serviceable, given that the operator has basic electrician skills. Any damaged cable can be cut out and any remaining serviceable cable re-terminated and used again without the need for specialist cable moulding services.

4. Connect a PC or Laptop computer with video grabber, or a video recorder for video recording and data logging.

A computer is not required for normal operation nor included in the supply.





Phamtom ROVThe Ultimate Phantom Rov has been upgraded to a depth of 800m (2500ft). Four horizontal thrusters, three vertical thrusters and two lateral thrusters allow for powerful maneuverability in all axes.

Using the built in KVH fluxgate compass and precision depth sensor, the Ultimate Phantom Rov can conduct precise search patterns under close loop control of the depth and heading.

The 50kg payload is only partially used up while carrying a four-function Hawkes Sensory Manipulator, 0.5 h.p. sediment blower, 400 watt HID arc light/light ballast system, 0.25 hp. suction cup manipulator end-effector, and a broadcast quality camera.

The variable rate, open loop manipulator control system and multiplex
unit include four auxiliary motor drive amplifiers and an optional tactile feedback sensor.

ROS High Resolution Colour Camera. The camera system has a local-record capability, zoom and manual/focus selectors.

VHS Video Recorder (day, date, time)

Video Overlay System with Depth, and Heading.

Simrad MS1000 Colour Scanning Sonar.

A spare shielded twisted pair cable is available in the umbilical for
an optional scanning sonar.

The 19-inch rack control console for the Ultimate Rov is powered with either 220 VAC/three phase or 240 VAC/single phase power. The console can either be installed in a portable shock mounted shipping case or within a 19-inch rack system inside it's dedicated 20-ft. control van.

A high performance Bandit Winch is included with the Ultimate Rov system. Together with a Control Console, Spares Kit, Tool Kit, and Power Transformer.



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1. Introduction

This Remote Operated Vehicle (Rov) is a heavy-duty underwater vehicle designed to carry out a wide variety of recovery, observation and manipulator tasks to a water depth of 1000 metres.

The Rov is equipped with Sonar, TV camera's, lights, manipulators and other specialised underwater survey equipment. The Rov will also provide electrical and hydraulic interfacing for general purpose and support tooling.

It is capable of free swimming or operating from a heavy-duty underwater garage (TMS) via a 150m buoyant tether umbilical.

Scorpio ROV Closeup image of the Scorpio ROV image

2. System Description

The system comprises of the Power Distribution Package, the Control and Display Console, the winch assembly, the umbilical and the Rov itself.

The equipment requires a stable power supply of 380 - 480v, 3-phase, 60Hz at 180kva.

2.1 System Performance

The Rov can be operated from a fixed installation up to a sea state 4 whilst free swimming and up to a sea state 6 while being TMS operated. During support vessel operation the limits are, sea state 4 free swimming and sea state 6 for TMS operation.
The system can be operated in tropical or cold climate conditions.

The vehicle is powered by 2 axial, 2 vertical and 2 lateral 15 HP thrusters. It is capable of operating in currents of 2 knots to a depth of 1000 metres.

The modular buoyancy provides a vehicle payload of 100kg and the safe working load of the lift frame is 2500 kg.

2.2 Surface Equipment

The surface equipment comprises a control cabin and a deployment system and an electro hydraulic winch.

2.3 Control Cabin

The Rov control cabin is a 20' x 8' steel container which houses all the Rov control equipment. The cabin is divided into two areas, the operators control console section and the power distribution section.

2.4 Operators Control Console

The major items of equipment in the console section are:

- Power Supply control panels
- Operators Control Console
- Multiplexer Control and DC power supply drawer
- Patch Drawer
- Attitude display processor
- Manipulator controllers
- Video Monitors
- Computer Generated Graphics Display unit

2.5 Surface Electronics System

The surface electronics system consists of the operators control console and other specialised equipment which is fitted into standard 19" racking situated either side of the pilots seat. The operators control console provides the interface for control of vehicle motion and the onboard support equipment.

The drawer system contains:

- Attitude display processor
- Surface electronics signal patch drawer
- Surface electronics MUX and control
- DC power supply

The principle elements of the system are the surface electronics control and patch drawers. These house the surface multiplexer, surface interface board and cross connect area that links individual components to form the control and signal interfaces.

The upper right hand drawer contains the power supply units, the multiplexer chassis and control components. The multiplexer chassis is connected by ribbon cables via the patch drawer to the operator control unit. This arrangement connects the analogue, control and miscellaneous commands from the operator via the following input devices:

- Joysticks
- Trim Controllers
- Lighting Potentiometers
- Sonar Deployment Control
- Digital input switch matrix
- Manipulator control switches

Analogue command inputs are routed to the patch drawer where some of the signals are diverted for conditioning or interface with the attitude display processor.

Vehicle motion control signals, joystick commands and trim voltages are routed to an interface board that is a 37 way module located in the patch drawer. This set up allows the signals to be summated and calibrated for offset or gain prior to transmission to the vehicle control system via the data multiplexer.

Analogue output channels from the multiplexer are routed within the surface electronics unit, then transferred to the computer for processing and display on the attitude and status indicators.

2.6 Surface Multiplexer

The surface telemetry control subsystem is built into the electronics unit. The subsystem comprises a multiplexer chassis that consists of a set of printed circuit boards housed inside the surface electronic unit.

The set of PCB's comprises:

- 1 x Mother Board
- 1 x Programme Board
- 1 x Mux Top Board
- 2 x Input/Output Boards

The surface multiplexer subsystem is designed to operate as the master controller of the overall system, thus all system timing is originated by the surface end of the datalink.

2.7 Umbilical Winch

The umbilical winch is an electro hydraulically driven unit, which is spooled with 1200 metres of umbilical. The winch assembly comprises:

- The electro hydraulic power unit
- The drum with auto level wind mechanism
- Hydraulic control lever
- Optical/Electric slipring unit.

2.8 Winch Connections

Rov power and control signals together with the winch power supply are routed from the control cabin and power distribution unit via separate deck cables. The Rov control signal cable is connected to the winch static junction box and the winch power supply is connected to the winch junction box.

The slipring unit is mounted on the winch drum axis. Internal leads from the sliprings are linked to the rotating junction box to which the Rov umbilical is connected.

3. Rov Umbilical

There are two types of Rov umbilical cable available to suit specific operational requirements. One type is steel wire wound whilst the other is Kevlar braided.

Both types of umbilical transmit the power, data, and video signals to and from the Rov.

4. Deployment System

Deployment and recovery of the Rov is by means of a Latch - Lock system that also acts as a guide for the umbilical. The latch - Lock dogs are hydraulically operated by means of an Enerpac hand pump.

Depending on the configuration of the support vessel either an "A" frame or an articulated crane may be used to deploy the Rov.

5. Remote Operated Vehicle

The Rov is a heavy-duty underwater vehicle designed to complete a wide variety of tasks to a depth of 1000m.

5.1 Rov Main Frame

The Rov frame is an open frame design, constructed from HE30 aluminium I beam and channel that give good strength to weight ratio. The frame is fitted on the base and outer surfaces with HDPE rubbing strips to protect it from damage during deployment and recovery. HDPE is a buoyant material when in water therefore adding no weight to the vehicle when sub sea.

5.2 Buoyancy

The vehicle is held in a vertical attitude by means of six contoured blocks of elastomer coated syntatic foam. There are three on each side of the top frame.

5.3 Electronics

The operating system has been designed around hardware driven Time Division Multiplex (TMD) telemetry datalink. The system is half duplex and provides a reliable communications link between the surface control equipment and the vehicle control / sensors system.

The vehicle primary electronic control and interfacing components are mounted inside two electronic pods. Connections to the external equipment are made through 24 pin Burton sub sea connectors.

Penetrators are placed radially on the pod end dome and each has a connector re mounted on the forward face. Each connector receptacle mates to a matching cable plug on the cable assembly.

The port pod contains the following:

1. Multiplexer Chassis - PCB's which for the vehicle multiplexer sub system.
2. Sensor Chassis - interfacing PCB's for propulsion control and vehicle sensors subsystem.
3. Power Distribution System - DC power supply units producing supply voltages fir the sensor systems and extra fitted equipment.
4. A directional Gyro System comprising a Humphreys Gyro and Flux gate unit which relays the vehicle heading to the pilot.
5. Lamp controllers - for single channel variable output lighting.
6. Relay Panel.
7. Water intrusion leak detector.

The Starboard electronics pod contains the following:

1. Power Distribution System - DC power supply units producing supply voltages for camera's, lamp, Controllers, solid-state relays, cathodic protection, Fibre optic, multiplexer and cooling fan.
2. Solid State relays - provide switched power for bathymetric profiler, pipetracker, tools and CP Interfaces.
3. FO Multiplexer - four channel fibre optic transmitter to cameras.
4. Water intrusion leak detector.
5. Fan - for internal cooling
6. Stills charging circuit for camera
7. Robertson Servo Gyro

5.4 Vehicle Multiplexer

The vehicle datalink system is housed inside the port electronic pod. It comprises a multiplexer chassis and a set of PCB's as follows:

- 1 x Programme Board
- 1 x Mother Board
- 1 x Mux Top Board
- 2 x Input/output boards

The vehicle multiplexer system is designed to operate as a slave controller of the system, thus all system timing is received from the surface end of the data link.

5.5 Sensors Interface Subsystem

The multiplexer analogue output and input boards are interconnected with the sensor chassis set of PCB's. These boards quantify the control commands from the multiplexer to ensure the correct operation of output devices, such as thrusters, and sensor inputs (for use within onboard feedback control circuits and transmission to the surface).

The sensor chassis set of PCB's is as follows:

- Mother Board
- Pitch/Leak/Pan /Tilt
- Focus Control (8 Channel)
- Servo/Valve Driver x 2
- Vertical Control Board
- Auto Heading Control x 2
- Heading Interface
- Temperature/Pressure Interface
- Altimeter

5.6 Hydraulics

Hydraulic Power for the vehicle system is provided by an electric motor driven Hydraulic Power Unit (HPU). It has an operating pressure of 3000psi, and a flow of 110 liters per minute.

This unit supplies motive power for the vehicle, the manipulators, the pan & Tilt movement and tooling. The system is protected from contamination by a high-pressure flow filter and low-pressure return filter.

5.7 Propulsion System

The vehicle is propelled by two vertical, two axial and two lateral thrusters. These thrusters are hydraulically driven with proportional control provided by servo valves located in the Thruster Control Unit.

The thrusters operate at full system pressure. The six electrically controlled servo valves are mounted on a manifold inside the thruster control unit where they are connected via cabling to the main junction box.

5.8 8-Way Hydraulic Control Units

The two 8 way Hydraulic Control Units consist of auxiliary valve packs of eight solenoid operated two-way valves. The hydraulic control units are supplied from the high-pressure manifold via a 1000psi pressure-reducing valve.

HCU No. 1 operates - Pan & Tilt units & 5 Function manipulator or tooling.

HCU No. 2 operates - 7 Function manipulator or Tooling.

5.9 Manipulators

A seven-function manipulator is situated on the port side of the front of the lower frame and a seven function similarly mounted on the starboard side, both are powered by the HCU located behind each manipulator.

5.10 Electronic Pods and Cabling

The umbilical is connected to the vehicle via the Survey Junction Box located in the center of the frame; all power and signals are distributed from the junction box to the Electronic Pods and other functions.

5.11 Compensation Systems

There are compensation systems built into the Rov distribution system.


There are five compensators fitted, two are fitted to the Dual HPU reservoirs the other three are mounted between the front frame legs and supply the main system, HPU Motor and Termination Junction Box.

5.12 Underwater camera's

There is provision for up to eight camera's which may be required if the vehicle is used in survey mode.

5.13 Underwater Lighting

There are six variable intensity lights fitted to the Rov these are individually controlled. They provide an output voltage up to 120v that is proportional to a 0v to +5v DC control signal from the vehicle multiplexer system. The DC signal is used for phase angle control of a Triac on the AC supply.

5.14 Sonar System

The scanning sonar system comprises a display processing unit and an underwater scanner, which is centrally mounted at the front of the vehicle.

These units are directly connected, via the umbilical, by a pair of shielded conductors that form the telemetry link.

The sonar interface is suitable for a Sea King Sonar system or similar, the DC power is switchable via a solid-state relay mounted in the starboard electronic pod.

6. System Specifications

6.1 Vehicle Dimensions

Length 3000 mm Excluding Front Bump Bar
Width 1450 mm including side protection
Height 1700 mm
Weight in air 2250 kg
Payload 100 kg
Depth Capability 1000 metres

6.2 Structure

Frame Aluminium Alloy HE30 Grade
Instrument Pods Aluminium Alloy HE30 Hard Anodised
Buoyancy Blocks Six Blocks Syntatic Foam
Buoyancy rating 689 kg
Reservoir and Comp Brackets HDPE
Pod Saddles HDPE

6.3 Vehicle Hydraulic Power Unit

Electric Motor Sub Atlantic 100HP 3000v 4P / 300v 60 Hz
Hydraulic Pump Rexroth 140cc Pump
Pressure Output 3000 psi (working)
Flow Rate 110 litres per min
HP Filter 3 micron
LP Filter 100 mesh strainer

6.4 HPU Status Sensors

Depth Kulite KPM 780/AR/SPL 0 to 1000 psi.
Hydraulic Pressure Kulite KPM 780/AR/SPL 0 to 5000 psi.
Leak Detection Terminal Type

6.5 Status Sensors

Temperature Platinum Film Resistor

6.6 Operating Fluids

Vehicle Hydraulics Shell Tellus 22 or equivalent
Electric Motor Housing Shell Tellus 22 or equivalent
Compensation system Shell Tellus 22 or equivalent

6.7 Thruster Control Units

Servo Valve Moog Type E077 Model 685

6.8 Thrusters

Motors Innerspace Type 4200S - 15

6.9 2 X 8 Way Hydraulic Control Units

Control Unit Manufactured by Perry Tritech

6.10 Fluid Compensation Units

Electric Compensation 1 x 1.3 litres capacity
HPU Motor 2 x 1.3 litres capacity
Hydraulics 2 x 1.3 litres capacity

6.11 Manipulators

Port Manipulator 5 Function
Starboard Manipulator 7 Function

6.12 Pan & Tilt Unit

Hydraulic Pan & Tilt Tritech Model PT 3636 c
Pan angle 360 deg adjustable
Tilt Angle 360 deg adjustable
Torque 56nm @ 200 bar
Payload 8 kg

6.13 Underwater Camera's

Low Light Monochrome Camera Tritech Tornado
Colour Zoom Camera Tritech Typhoon

6.14 Vehicle Main Sensor Equipment

Scanning Sonar Tritech Super Sea King DFP
Gyro Compass Humphyres Directional Gyro
Depth Transducer Kulite KPM 780AR/SPL 0 to 1000 psi
Pressure Transducer Kulite KPM 780AR/SPL 0 to 5000 psi

6.15 Rov Control Cabin

Container Ferguson Seacabs 20 Ft x 8 Ft x 8 Ft
Fully lined with a/c fitted

Power Distribution Unit MCI Electronics

Power Transformer 130 Kva 360-380-400-420-440-460-480v-delta
Secondary voltage 3000v star +N, 3phase d Yn11,
50/60 Hz. HV coupler for GFI & HV fuses.

Power Transformer MCI Electronics
7 Kva 360-380-400-420-440-460-480v-delta
Secondary voltage 110v star+N, 3phase dY11,50/60 Hz

Remote Monitoring Panel 19" rack fitted with metering, pushbuttons and indicators.

Control Console 3 x 19" Racks fitted with Operators Control Unit and
Video Monitoring System.


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Hyball is a compact, portable system comprising the Remote Operated Vehicle (Rov) and a Surface Control Unit with built in colour monitor, and all Rov controls.


An appropriate length of umbilical connects the Rov to the Surface Control Unit providing the telemetry, power and video link between the two units. Hyball comes standard with the most comprehensive video overlay of any Rov in its class and all the auto functions that you would expect of a professional system. Useful accessories can be added to the system to extend its operational capability.

Hyball's unique feature is the patented meridian view port that allows the internally mounted camera to tilt and view through 360 degrees. Panning of the camera is achieved by rotating the vehicle, which can turn on its own axis. This combination of camera movement and vehicle maneuverability provides you with the ideal remote controlled subsea video inspection package for coastal and inshore applications. In Hyball we provide you with the very latest in colour video cameras for unbeatable video quality. Currently we provide a JVC 470 line resolution, 0.95 lux colour CCD camera with an F 0.8 Pentax lens as the standard video camera.

Hyball is fitted with four thrusters. Two main thrusters provide forward, reverse and rotational movement and two vertran thrusters provide vertical and lateral movement. Each has 5-inch diameter propellers in Kort Nozzles driven by 380 watt (1/2hp) 24 volt DC motors through 10.5:1 reduction gears.

The carbon/ceramic spring loaded shaft seals and motor brushes have a service life of 500 hours in normal operation down to 300 metres (1000 feet). They can be replaced on all four thrusters in less than an hour by removing the thruster from the outside of the vehicle. Thruster speed and direction is controlled by digital signals proportional to the movements of the joystick. Built in protection prevents overheating and overloading of motors. Ramping of motor speed is software driven through a dedicated microprocessor to give smooth operating performance.

Hyball is equipped with two fixed 75 watt, quartz halogen lights aimed forward and two 75 watt lights mounted on the camera chassis. These camera chassis lights track with the camera. All light bulbs are easily replaceable in the field. Each light is individually controlled and has an on/off indicator on the video overlay. Light intensity is adjustable from the Surface Unit keypad.

Viewing System.
Hyball is equipped with a low light CCD colour video camera with a wide angle, auto iris lens. The camera is mounted on a chassis, which rotates through 360 degrees and allows the camera to view up, down, forward or backwards through a unique, patented Meridian view port.

The video picture is sent to the Surface Unit and is displayed on an integral 14-inch high-resolution colour monitor. Either PAL or NTSC format is available. A BNC outlet is provided for a video recorder. We recommend that an S-VHS or Y/C video recorder be used that is capable of recording the high quality video from Hyball, which has greater than 460 line resolution. (A standard domestic VHS recorder can only resolve about 270 lines resolution). Three cameras can be mounted on the standard camera chassis - the standard camera, a low light monochrome camera and a photographic camera.

Hyball is supplied with a full package of control and instrumentation sensors:

The Digital Depth Indicator is selected by the operator to readout in feet or metres, salt or freshwater. The vehicle's depth is then displayed on the video overlay.

Hyball is equipped with both a magnetic compass and a rate gyro. The compass heading is displayed on the video overlay compass rose and can also be displayed as a digital heading. The rate gyro is used to control auto heading when this function is selected.

Camera Position.
A potentiometer on the camera chassis provides feedback to display camera tilt position on the video overlay. This is very useful for orientation during flying as well as video playback.

Leak Detection.
Pre dive water integrity is confirmed by drawing a partial vacuum in the vehicle using the supplied vacuum pump. This partial vacuum is displayed on the video overlay and can be monitored to ensure that there are no system leaks. The vehicle is also fitted with a water ingress alarm as an additional safety feature.

Electrical Protection.

Ground fault interrupters and circuit breakers are installed to protect both the surface unit and the vehicle.

Video Overlay.
Hyball comes with the most advanced video overlay system of any Rov in its class. The overlay information can be displayed at the top or bottom of the screen or be removed. Information provided includes:

Vehicle heading, depth, time and date.
Auto heading and auto depth status
Lights selected and intensity
CP reading (if CP probe fitted)
Manipulator open/close (if fitted)
Camera position indicator
Camera selected (A or B)
Umbilical turns counter
And two lines of free text

A single, three-axis joystick and dive/surface buttons on the hand controller control the vehicle's movement. Any combination of vehicle thruster instruction (except rotate) can be locked in by use of the trim button. This is useful for hands-off operation or for re-centering the joystick when operating in a cross current. Vertical thrust power is selected from the surface unit panel. Membrane tactile response keypads are provided on both the surface unit and hand controller.


Weight Vehicle with
Bumper Frame
21.10ins (535mm)
25.60ins (650mm)
22.20ins (565mm)
90.39lbs (41kg)Surface Unit

18.00ins (455mm)
12.35ins (390mm)
20.25ins (515mm)
92.00lbs (42kg)

Speed: In excess of 2 knots forward
Operating Depth: 1000ft (300m)
Payload: 9 lbs. (4.5 kg)
Power Requirements: 240 to 110 volts Single Phase A/C, 50/60Hz.
2.5kW max. mains power requirement.
For use with a generator we recommend a 5VA unit.

Maximum Length: 1320 ft (400m)
Diameter: 0.45 ins (11.5mm) Standard
0. 58 ins (15mm) Neutral
Weight in water: 2.8 lbs/330 ft (1.26 kg/100m)
Min. Breaking Load: 1100 lbs (500 Kgf)
Conductors: 1 screened twisted pair - telemetry.
2 spare screened twisted pairs
1 video coax: 2 power conductors.


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ROV with TMS.

Apache ROV

The system has recently been fully serviced and inspected by the manufacturer, and is in very good condition. 

In addition to the basic Apache Rov / TMS / Surface Control Unit components, this Rov has the following extra equipment fitted:

- Additional Kongsberg Colour camera
- Tilt bar + motor for cameras and lights
- Extendable boom-arm
- Buoyancy skid
- Manipulator (rotating claw) with remote control unit
- Tritech sonar and tft monitor
- Main Lift overboarding sheave
-TMS Lock Latch


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The following paragraphs comprise the major components and listings of this SeaEye Marine "Tiger" Rov. Including its Launch & Recovery System (LARS), Tether Management System (TMS), and Spares.

This Tiger Rov system has only 85 in-water hours, over three dives and comprises the following main components.

Seaeye Tiger Rov Vehicle

Launch & Recovery System (Lars) + Payout System (main umbilical 200m)

Garage - TMS

Spare Parts

Manuals, Electrical Drawings, Electronic Schematics, Ancillary Tools and equipment.



SEAEYE ROV. Sale Details:

SeaEye Tiger Rov

Surface Unit Model BSU (D)

Transformer Unit Model 6TU/2

Digital Hand Controller Unit (Joystick), model HC(D)

Manipulator Arm, model M7

Manipulator Control, model MSU



Hydroactive Level Wind Option

LARS A-Frame Handling System c/w flatbed - container platform

30 conductor S/S encase Slip Ring Assembly mounted in shaft

22" dia overboarding sheave 8RDX 4" LP thread. 12' long heavy duty

Cable Payout, Tension, Speed monitoring system

Spare parts kit for model


GARAGE TMS Control Unit, SeaEye model INSSC(D)

200m Main Lift Umbilical (Steel reinforced cable), AMLC

125 meters Rov Tether cable

300 meters umbilical free-running cable


Simrad MS-900 Sonar inc. Processor

Sonar monitor, Philips, mod 105 E 19

Video Monitor Unit, Sony, model PVM-14500-M

VCR Sony model SLV-LX8SC

Rov Peripherals shelving, + two seats

Electrical installation.


1 x Thruster motor MS4 and 1 x Thruster motor MS4

2 Propellers for SM4

2 SM4 shaft seals

2 Lamps protectors

2 Sockets for lights

2 halogen lamps

1 Sonar connecting cable

1 Hand Control Unit cable connector, HCD/05

1 Surface Unit connector/Transformer

1 Plastic bag with different type fuses

1 Plastic bag stainless steel bolts

7 stainless steel 6 mm nuts with seals

1 Female 10 pins Birns connector

1 Female 3 pins connector

1 Female 3 pins connector

1 Female connector 4 pins

1 Resistance SKE 400

1 Tilt motor


1 resin epoxy, potting compound bag

1 Chinese Finger

1 TIGER excursion umbilical 325 meters

1 Excursion Umbilical 140 mts


Card serial : Nr N10255 - N 527 CD0477

Card serial Nr 6051 - 6040 - 6045 - 6033-104 - 6041 - 6033-103

SBC -68 - 6008 - SUBSEA 485V1R2 - 6034 - 6035

6034-P - 6046 - 6022 - 6056 -P - 6033 - 6047 - 6051 AP

Software U5ROBSBC68

CPU 6033

VIDEO CARD 029 / 403-87S


2 "O" ring TMS E-Pod

1 Slip Ring IEC

1 OMRON limit switch

1 OMRON switch

2 Switches SER.A D5-3X10

1 Shuttle valve model ASH

1 Glycerine manometer WIKA 0-5000 psi

1 SOL.A power supply

1 DANFOSS Solenoid valve

2 CANON 90º connectors part nr 108E18-325U (SR)

1 Flux valve compensator

1 Transformer MICRON

1 Control valve SAUER SUNDSTRAND

1 Starting switch motor

1 Valve compact control

2 DANFOSS Hydraulic valve

1 PARKER Hydraulic motor (repaired) SEA-MAC winch


Plastic bags with "O" rings and seals for SMS thrusters and umbilical excursion mechanism.

1 thruster shaft ser. DK 626 (excursion umbilical)

1 Ordenator chain

1 Ordenator chain DK-251

1 Ordenator chain DK-255

1 Ball bearing extractor SYKES-PICKAUANT

1 gear wheel plastic

1 bag 2 oil seals DK-210

2 Ball bearings

1 plastic sheave DK 134-50 mm roller.


1 SeaEye Tiger Technical Manual

1 SeaMac Model 3530EHLWS System Manual

1 SeaMac Payout, Speed, and Tension Line Monitor System Manual

1 Simrad Mesotech 900 Operators Manuals

1 TMS/Garage System Manual

1 SeaEye Surface Unit System Manual

2 SeaEye 600 manuals

All Documentation, Manuals, Electrical Drawings, Electronic Schematics, and all instructional and technical supporting, and maintenance documentation associated with all Ancillary Tools and Miscellaneous Devices are included in the sale.



Maximum operating depth: 1000 metres

Dual video channels

32 Kg (70 Lb) payload

4 Vectored and one vertical Seaeye SM 4M thrusters with

velocity feedback

Auto heading and depth

Thruster trim functions

Fully interfaced for sonar and CP probes

3 Phase power outlet option

Single or 4 function manipulator option

TMS system

Free swimming mode

300 watts of variable intensity lighting

Integral video overlay



THE SEAEYE TIGER is widely regarded internationally as the standard observation and inspection ROV for operations to depths of 1000 metres in the offshore oil and gas industry. Its performance in strong currents, excellent handling and manoeuvrability are unsurpassed.

A Seaeye Tiger can be operated free swimming with up to 450 metres of umbilical or from a Type 2 or Type 5 TMS system to its full working depth.

Seaeye Tigers are open frame construction providing greater scope to fit additional accessories and more capable manipulators than 'eyeball' ROVs. This open frame construction also allows the horizontal thrusters to be mounted in the most efficient vectored arrangement providing far greater thrust in both forward and lateral directions than earlier axial and lateral thruster combinations.

A basic ROV system comprises the Vehicle, a Surface Control Unit a Hand Control Unit and a Power Supply Unit. The surface Control unit and PSU can be supplied free standing or as a containerised system. This Control Container can be Zone II rated or rated for safe area operations. It is air conditioned as standard.

Free swimming operations are possible with up to 450 metres of tether. For operations with umbilical lengths greater than 450 metres it is necessary to use a Seaeye Tether Management System (TMS). This can either be the economical Type 2 bale arm system providing an excursion range of 140 metres or the superior Type 5 TMS which is a winch and slip ring arangement. The Type 5 TMS with its variable garage opening height provides ROV excursions from the TMS of up to 240 metres.


The manufacturer offers a skid mounted 'A' frame and lifting winch with 1100 metres of armoured lift umbilical as a compact combined unit to launch and recover a TMS garaged Seaeye Tiger. Alternatively an articulated crane and winch unit can be offered mounted on a gravity base. These options can be offered rated for hazardous area Zone II operations or for 'safe area' operations and are known as a 'LARS' or Launch and Recovery System. Alternatively you may have your own crane available and may only require the lifting winch and armoured umbilical with an umbilical sheave and a lock-latch release mechanism and vehicle bullet for launch and recovery.


Maximum working depth 1000 metres

Length 1030 mm

Height 590 mm

Width 700 mm

Thrust Fwd 62 kg

Thrust Lateral 43 kg

Thrust Vertical 22 kg

Weight 150 kg

Payload 32 kg



All Seaeye ROVs feature brushless DC thrusters which, apart from having the greatest power density, have integrated drive electronics with velocity feedback for precise and rapid thrust control. These thrusters are interfaced to a fast PID control system and a solid-state rate gyro for enhanced azimuth stability. These essential building blocks enable Seaeye Marine to provide superior control and response from their powerful ROVs and set them apart from the competition. Four vectored horizontal and one vertical SEAEYE SM4M brushless DC thrusters propel Tiger and provide full three-dimensional control.


The 100% modular chassis is manufactured in polypropylene. This extremely rugged material is totally maintenance free, non corroding and self supporting in seawater. Additional equipment can be bolted directly to chassis members.

Pressure Housings

All housings are machined from 6082 marine grade aluminium and hard anodised black. The main electronics pod is fitted with a water ingress alarm that displays on the video overlay if activated.


Seaeye's range of 316 stainless steel connectors are generally used throughout.


Is provided by a single moulded syntactic foam buoyancy block with apertures provided for a sonar head and a transponder or responder.

Control System & Video Overlay

A 16 bit digital control system provides easy interfacing of ancillary equipment by the operator. The SEAEYE comprehensive video overlay is fitted as standard providing digital and analogue compass rose, tilt icon, date time group, depth (metric or imperial), CP value ,and pre-titled and free text pages. Vehicle data may be exported to a client's Survey or Navigation computer via a PC using the SEAEYE Telemetry Monitor Unit that is provided as part of the standard Seaeye Tiger spares kit.

Navigation Compass

A sensitive flux-gate compass unit with solid state rate sensor is incorporated for enhanced azimuth stability. Specifications: Accuracy± 1°, Resolution0.351°, Up-date rate98mS.


Depth Sensor

Electronic unit in its own separate housing. Accuracy ± 0.1% of full scale deflection.

Auto-pilot and Thruster Trim Functions

Full automatic pilot is provided for depth and heading. Thruster trims are provided on the hand control unit.

Tilt System

The cameras are mounted on a tilt platform providing ±90° of tilt. The tilt mechanism is fitted with a positional feedback potentiometer and camera tilt angle is displayed on the video overlay.


Two individually fused SEAEYE 150W lamps are provided with remote brilliance control. Both lamps are positioned on the camera tilt unit to follow the camera tilt angle for optimum scene illumination.

Video System

Two simultaneous video channels are provided. Video transmission is via screened twisted pairs from the vehicle to the TMS and a single fibre-optic from the TMS to the surface. A 14" colour monitor PAL/NTSC is supplied as standard.

Surface Control Unit

This unit contains all of the vehicle system surface control electronics, TMS control and surface outlets for ancillary equipment. It is 19" rack mountable and is supplied in its own case.

Hand Control Unit

A small remote hand control unit containing all system controls is provided and supplied on a 5m flying lead.

Surface Power Supply Unit

Supplies all power requirements for the vehicle system. Line Insulation Monitors (LIMS) are fitted to both AC and DC power components for safety and monitoring purposes. Requires 3 phase AC input of between 380vac and 480vac at 11kva.


Tel: England (+44) 1285.760620






Robotic Deep-sea Vehicle Nereus Lost on Dive to Six Mile Depth.


On Saturday 10 May 2014, at 2 p.m. local time, the hybrid remotely operated vehicle Nereus was confirmed lost at a depth of 9,990 metres (6.2 miles) in the Kermadec Trench, northeast of New Zealand. The unmanned vehicle was working as part of a mission to explore the ocean's hadal region from 6,000 to nearly 11,000 metres deep. Scientists say a portion of it likely imploded under pressure as great as 16,000 pounds per square inch.


Nereus was built in 2008 by the Deep Submergence Lab at the Woods Hole Oceanographic Institution (WHOI) with primary funding from the U.S. National Science Foundation (NSF) to descend to the deepest parts of the ocean and to operate either autonomously or to be controlled remotely from the surface. WHOI engineers incorporated a number of novel technologies into its design for use in remote operations, including an optical fibre tether for use in remote operations, ceramic flotation, and lithium-ion batteries. Its mission was to undertake high-risk, high-reward research in the deepest, high-pressure parts of Earth's ocean. At the time it was lost, it was 30 days into a 40-day expedition on board the research vessel Thomas G. Thompson to carry out the first-ever, systematic study of a deep-ocean trench as part of the NSF-sponsored Hadal Ecosystems Study (HADES) project under chief scientist Timothy Shank, a WHOI biologist who also helped conceive the vehicle. Researchers on the Thompson lost contact with the vehicle seven hours into a planned nine-hour dive at the deepest extent of the trench. When standard emergency recovery protocols were unsuccessful, the team initiated a search near the dive site. The team onboard spotted pieces of debris floating on the sea surface that were later identified as coming from Nereus, indicating a catastrophic implosion of the vehicle. The ship's crew has recovered the debris to confirm its identity and in the hope that it reveals more information about the nature of the failure. In addition to the Kermadec Trench, Nereus had successfully travelled to Challenger Deep in the Mariana Trench—the deepest point in the ocean—and explored the world's deepest known hydrothermal vents along the Cayman Rise in the Caribbean Sea. It had been scheduled to return to the Mariana Trench in November as part of the second HADES expedition. Already on the first HADES cruise, Nereus had brought back to the surface specimens of animals previously unknown to science and seafloor sediment destined to help reveal the physical, chemical, and biological processes that shape the deep-ocean ecosystems in ocean trenches, which are unlike almost any others on the planet. WHOI is a leader in the development of autonomous robotic vehicles for the exploration of the ocean, including the hybrid vehicle Nereus, which functioned as a remotely operated vehicle via an optical fibre tether and also as a free-swimming autonomous vehicle. It was one of only four submersibles in history to reach the deepest part of the ocean in the Marianas Trench. WHOI director of Research, Larry Madin, said that there was no human injury as a consequence of this loss. WHOI scientists and engineers will continue to design, construct and operate vehicles to explore and understand the most remote and extreme depths of the global ocean.





DeepOcean has opted for the new concept Leopard ROV from Saab Seaeye. Seen as the most powerful ROV of its size in the world, its combination of 11 thrusters, unrivalled payload, and a host of advanced technology features won over DeepOcean, which itself is an innovator in providing subsea services. "It's a pioneering design from Saab Seaeye - a company with a track record of innovation," says Rick Green, Regional Manager Netherlands at DeepOcean, "and will be a valuable addition to our fleet. "Environmentally we wanted an electric vehicle - yet one with work class performance. "For our application the Leopard gives us the equivalent capability of a much larger hydraulic work class vehicle - and its 11 thrusters means it can handle strong currents - and that's important to us." He points out that with eight horizontal thrusters and three vertical thrusters the Leopard can hold steady in strong cross-currents. Rick Green also likes the ROV's inventive new chassis concept. Its large open payload bay allows for ample tooling and survey sensors to be installed on sliding trays for rapid reconfiguration and easy maintenance. It means, he says, that a survey-grade INS system can now be easily integrated inside the vehicle.

The new Leopard, with 11 thrusters and iCON technology,
is the most powerful and advanced compact
work-class ROV in the world.

The combination of new chassis design, iCON intelligent architecture with building-block capability, and exceptional power, means that more interchangeable equipment can be fitted than ever before in a vehicle of this size. With a one tonne through-frame lift capability and a four-point docking system for tooling skids, more demanding payloads can be added to the Leopard as needed. Yet despite its extra capabilities, the total Leopard package is designed for easy transport and rapid mobilisation - by staying within a minimal deck footprint combination of 20ft x 8ft single lift A-Frame & winch LARS, and a 20ft control cabin. Designed with the pilot in mind, the Leopard has many inventive features to make life easier for the operator in the field. The pilot will find that the iCON intelligent control system delivers better handling characteristics - including pitch and roll stabilisation for the best quality survey data - and offers stable flight even when large tools and sensors are deployed. The iCON architecture also gives clear and enhanced information whilst independently managing each device on the vehicle, including auto redundancy that will keep the ROV working even with multiple equipment damage. Through iCON the main electronics pod has been refined into an intelligent power distribution and data hub, with the brains of the system re-located into sensors and actuators around the vehicle. This provides greater information for the user and makes maintenance far simpler and quicker. Distributing intelligence around the vehicle avoids the need to partially dismantle the ROV to reach a central electronic heart and offers building-block simplicity for equipment changes, along with enhanced remote internet access for upgrades and support.


Hibbard Inshore has set the record for the longest flooded tunnel inspection against flow ever attempted. Success came from using the Saab Seaeye Sabertooth AUV/ROV hybrid, chosen as the only possible vehicle for the job. Used as a tethered ROV, which was extremely important to Hibbard for real time data feedback, vehicle control, and safety measures, the Sabertooth swam the eight kilometres of tunnel against a 0.3 metre-per-second flow whilst fitted with a range of surveying and filming systems. This achievement kept the vital water supply flowing to Rio Tinto's aluminium smelting plant in British Columbia during the inspection mission. Speed was essential as the flow was reduced during the mission and a 'very fast' inspection in an eight-hour timeframe was needed, says Dave Malak, Director of Hibbard Inshore. The Sabertooth was fitted with a combination of multi-beam systems and cameras to provide 3D profiling of the tunnel, along with a record of the tunnel wall status and HD video examination of areas of concern. For Rio Tinto the 40 year-old tunnel is a critical asset that needed a thorough examination to reveal areas of potential collapse for maintenance planning and to provide comparable data for trends in tunnel condition. Hibbard's success follows their record-breaking 24 kilometre tunnel inspection inside Australia's Snowy Mountain hydro scheme where they also used the Sabertooth in its tethered mode.

Sabertooth - record breaking design for long tunnel inspection

The Sabertooth concept combines the technologies of both AUV and ROV vehicles into a single unified resource to give operators the range and manoeuvrability of an AUV, yet with the tooling capability of a light-work ROV. Hibbard Onshore were first to spot the potential of the Sabertooth concept, recognising the advantages of a vehicle that has 360 degree manoeuvrability, a sleek hydro-dynamic design, efficient thrusters and accurate navigation - and an ability to cope with flowing water in a confined space. They also saw the benefit of battery technology that could operate the Sabertooth over extremely long distances under its own power so that only a thin fibre-optic cable need be used when necessary.






The new Leopard is the most powerful compact work-class ROV in the market. With 11 thrusters, unrivalled payload, and a host of advanced technology features, the new Saab Seaeye Leopard is the most powerful ROV of its size in the world. Aimed at the compact work-class market, the Leopard can handle more tooling, cameras and survey equipment than any other ROV in its class. The minimal deck footprint of the Seaeye range is maintained with the combination of a 20 x 8ft single lift, A-Frame & winch LARS and a 20ft control cabin for easy transport and rapid mobilisation. Its pack of eight horizontal thrusters and three vertical thrusters gives the Leopard exceptional thrust, powering the vehicle forward at over four knots, and enabling it to hold steady in strong cross-currents. For the pilot, the vehicle's iCON intelligent control system gives clear and enhanced information whilst independently managing each device on the vehicle, including auto redundancy that will keep the ROV working even with multiple equipment damage. The pilot will also find that it delivers better handling characteristics - including pitch and roll stabilisation for the best quality survey data and to allow stable flight even with large tools and sensors deployed. Designed with the pilot in mind, the Leopard has other inventive features to make life easy for the operator in the field. For instance the networked design of the iCON control system has refined the main electronics pod into an intelligent power distribution and data hub, and re-located the brains of the system into sensors and actuators around the vehicle. This provides greater information for the user and makes maintenance far simpler and quicker. This innovation also avoids the need to partially dismantle the ROV to reach its electronic heart. And it offers building-block simplicity for equipment changes along with remote internet access for upgrades and support. The chassis has been designed with rapid reconfiguration and easy maintenance in mind. A large open payload bay within the vehicle allows for ample tooling and survey sensors to be installed rapidly on sliding trays. Its one tonne through-frame-lift capability and four point docking system for tooling skids allows more demanding payloads to be added. The combination of new chassis design, iCON building-block concept and exceptional power, means that more interchangeable equipment can be fitted than ever before in a vehicle of this size. Operators can therefore use the Leopard for a wide range of work tasks including drill support, pipeline survey, salvage and deep water IRM.


Submarines: U.S. Navy Expands Its Fleet Of Robotic Subs.

Since 2009 the U.S. Navy has been developing and testing a series of robotic mini-submarines, or AUVs (Autonomous Undersea Vehicle) that are silent, very small, and able to operate on their own for up to a year. The first models were two meters (six feet) long and weighed 59 kg (130 pounds) and built to operate completely on its own collecting valuable information about underwater “weather”. What this AUV does is automatically move slowly (30-70 kilometers a day) underwater, collecting data on salinity and temperature and transmitting back via a satellite link every hour or so as the AUV briefly reaches the surface. This data improves the effectiveness of sonars used by friendly forces, making it easier to detect and track enemy submarines. That’s because the speed of sound travelling through water varies according the temperature and salinity of the water. Having more precise data on salinity and temperature in a large body of water makes your underwater sensors (sonar, which detects sound to determine what is out there) more accurate. The current navy AUVs can dive as far down as 200 meters (620 feet) but new models will be able to go down to 1,000 meters or more. These AUVs use a unique form of propulsion. They have wings, and a small pump, that fills and empties a chamber. This changes its buoyancy, causing it to glide down, then back up. This maneuver moves the AUV forward. Equipped with GPS and a navigation and communications computer, the AUV is programmed (or instructed via the sat link) to monitor a particular area. The small pump uses less electricity than a propeller (to move it at the same speed). Thus these UAVs can remain at sea for up to a year on one battery charge. Before the battery runs out the navy has to direct the UAV and a ship to a rendezvous where the AUV will remain on the surface and the ship will haul it aboard, replace the battery and perform any other needed maintenance. Small AUV maintenance detachments (of two or three sailors) can be flown to a ship that is close enough to make the rendezvous. In some cases you can direct the AUV to move close to land, which makes it even easier to find a boat to go out and get the AUV. These AUVs can be launched from ships or shore. In 2009 an AUV of this type crossed the Atlantic on its own, as part of a civilian research project. The navy currently has 75 of these AUVs and plans to have at least 150 by 2015. This is part of a plan to have UAVs replace many of the ocean survey ships currently used for this kind of work. The survey ships take temperature and salinity reading from instruments deployed from the ship as well as a global network of several thousand research buoys. Unlike the survey ships the AUVs could be deployed in areas where hostile subs are believed to be operating, and be kept at it as long as needed. If successful in regular use, larger versions are planned, equipped with more sensors and longer duration.


Remotely operated underwater vehicles (ROVs).

A remotely operated underwater vehicle, commonly referred to as an ROV, is a tethered underwater vehicle. They are common in deep water industries such as offshore hydrocarbon extraction. While the traditional abbreviation "ROV" stands for remotely operated vehicle, one must distinguish it from remote control vehicles operating on land or in the air. ROVs are unoccupied, highly maneuverable and operated by a crew aboard a vessel. They are linked to the ship by either a neutrally buoyant tether or often when working in rough conditions or in deeper water a load carrying umbilical cable is used along with a tether management system (TMS). The TMS is either a garage like device which contains the ROV during lowering through the splash zone, or on larger work class ROV's a separate assembly which sits on top of the ROV. The purpose of the TMS is to lengthen and shorten the tether so the effect of cable drag where there are underwater currents is minimized. The umbilical cable is an armored cable that contains a group of electrical conductors and fiber optics that carry electrical power, video and data signals back and forth between the operator and the TMS. Where used, the TMS then relays the signals and power for the ROV down the tether cable. Once at the ROV, the electrical power is split and distributed between different components of the ROV. However, in high power applications, most of the electrical power is used to drive a high powered electrical motor which drives a hydraulic pump. The hydraulic pump is then used for propulsion and to power equipment such as torque tools and manipulator arms where electrical motors would be too difficult to implement sub sea. Most ROV's are equipped with at least a video camera and lights. Additional equipment is commonly added to expand the vehicle’s capabilities. These may include sonars, magnetometers, a still camera, a manipulator or cutting arm, water samplers, and instruments that measure water clarity, water temperature, water density, sound velocity, light penetration and temperature.


In the 1970s and '80s the Royal Navy used "Cutlet", a remotely operated submersible, to recover practice torpedoes and mines. RCA (Noise) maintained the "Cutlet 02" System based at BUTEC ranges, whilst the "03" system was based at the submarine base on the Clyde and was operated and maintained by RN personnel. The US Navy funded most of the early ROV technology development in the 1960s into what was then named a "Cable-Controlled Underwater Recovery Vehicle" (CURV). This created the capability to perform deep-sea rescue operation and recover objects from the ocean floor, such as a nuclear bomb lost in the Mediterranean Sea after the 1966 Palomares B-52 crash. Building on this technology base; the offshore oil & gas industry created the work class ROVs to assist in the development of offshore oil fields. More than a decade after they were first introduced, ROVs became essential in the 1980s when much of the new offshore development exceeded the reach of human divers. During the mid-1980s the marine ROV industry suffered from serious stagnation in technological development caused in part by a drop in the price of oil and a global economic recession. Since then, technological development in the ROV industry has accelerated and today ROVs perform numerous tasks in many fields. Their tasks range from simple inspection of subsea structures, pipeline and platforms to connecting pipelines and placing underwater manifolds. They are used extensively both in the initial construction of a sub-sea development and the subsequent repair and maintenance. Submersible ROVs have been used to locate many historic shipwrecks, including that of the RMS Titanic, the Bismarck, USS Yorktown, and SS Central America. In some cases, such as the SS Central America, ROVs have been used to recover material from the sea floor and bring it to the surface. While the oil & gas industry uses the majority of ROVs; other applications include science, military and salvage. Science usage is discussed below, the military uses ROV for tasks such as mine clearing and inspection.


Work Class ROV's are built with a large flotation pack on top of an aluminium chassis to provide the necessary buoyancy to perform a variety of tasks. Syntactic foam is often used for the flotation material. A tooling skid may be fitted at the bottom of the system to accommodate a variety of sensors or tooling packages. By placing the light components on the top and the heavy components on the bottom, the overall system has a large separation between the center of buoyancy and the center of gravity: this provides stability and the stiffness to do work underwater. Electrical components can be in oil-filled water tight compartments or one atmosphere compartments to protect them from corrosion in seawater and being damaged by the extreme forces exerted on the ROV while working deep. Thrusters are usually in a vectored configuration to provide the most precise control as possible. The ROV will be fitted with cameras, lights and manipulators to perform basic work. Additional sensors and tools can be fitted as needed for specific tasks. The majority of the work class ROV's are built as described above; however, this is not the only style in ROV building method . Specifically, the smaller ROV's can have very different designs, each geared towards its own task.

Military ROV

In October 2008 the U.S. Navy began to replace its manned rescue systems, based on the Mystic DSRV and support craft, with a modular system, the SRDRS based on a tethered, unmanned ROV called a pressurized rescue module (PRM). This followed years of tests and exercises with submarines from the fleets of several nations.The US Navy also uses an ROV called AN/SLQ-48 Mine Neutralisation Vehicle (MNV) for mine warfare. It can go 1000 yards away from the ship, and can reach 2000 feet deep. The mission packages available for the MNV are known as MP1, MP2, and MP3.

  • The MP1 is a cable cutter to surface the moored mine for recovery exploitation or EOD detonation.
  • The MP2 is a bomblet of 75 lb PBXN-103 high explosive for neutralising bottom/ground mines.
  • The MP3 is a moored mine cable gripper and a float with the MP2 bomblet combination to neutralise moored mines underwater.

The charges are detonated by acoustic signal from the ship.

The AN/BLQ-11 autonomous Unmanned Undersea Vehicle (UUV) is designed for covert mine countermeasure capability and can be launched from certain submarines.The ROVs are only on Avenger class mine countermeasures ships. There are currently 13 ships, operating mostly off the coast of Japan and California, and there are always four US minesweepers in the Persian Gulf: USS Ardent (MCM-12), USS Dextrous (MCM-13), USS Scout (MCM-8) and USS Gladiator (MCM-11).During August 19, 2011, a Boeing-made robotic submarine dubbed Echo Ranger was being tested for possible use by the U.S. military to stalk enemy waters, patrol local harbors for national security threats and scour ocean floors to detect environmental hazards. As their capabilities grow smaller ROVs are also increasingly being adopted by navies, coast guards, and port authorities around the globe, including the U.S. Coast Guard and U.S. Navy, Royal Netherlands Navy, the Norwegian Navy, the Royal Navy and the Saudi Border Guard. They have also been widely adopted by police departments and search and recovery teams. Useful for a variety of underwater inspection tasks such as explosive ordnance disposal (EOD), meteorology, port security, mine countermeasures (MCM), and maritime ISR (Intelligence, Surveillance, Reconnaissance).

Science ROVs

ROVs are also used extensively by the science community to study the ocean. A number of deep sea animals and plants have been discovered or studied in their natural environment through the use of ROVs: examples include the jellyfish Bumpy and the eel-like halosaurs. In the USA, cutting edge work is done at several public and private oceanographic institutions, including the Monterey Bay Aquarium Research Institute (MBARI), the Woods Hole Oceanographic Institution (WHOI) (with Nereus), and the University of Rhode Island / Institute for Exploration (URI/IFE).[2][3] The picture to the right shows the behavior and microdistribution of krill under the ice of Antarctica.Science ROVs take many shapes and sizes. Since good video footage is a core component of most deep-sea scientific research, research ROVs tend to be outfitted with high-output lighting systems and broadcast quality cameras.[4] Depending on the research being conducted, a science ROV will be equipped with various sampling devices and sensors. Many of these devices are one-of-a-kind, state-of-the-art experimental components that have been configured to work in the extreme environment of the deep ocean. Science ROVs also incorporate a good deal of technology that has been developed for the commercial ROV sector, such as hydraulic manipulators and highly accurate subsea navigation systems.While there are many interesting and unique science ROVs, there are a few larger high-end systems that are worth taking a look at. MBARI's Tiburon vehicle cost over $6 million US dollars to develop and is used primarily for midwater and hydrothermal research on the West Coast of the US.[5] WHOI's Jason system has made many significant contributions to deep-sea oceanographic research and continues to work all over the globe. URI/IFE's Hercules ROV is one of the first science ROVs to fully incorporate a hydraulic propulsion system and is uniquely outfitted to survey and excavate ancient and modern shipwrecks. The Canadian Scientific Submersible Facility ROPOS system is continually used by several leading ocean sciences institutions and universities for challenging tasks such as deep-sea vents recovery and exploration to the maintenance and deployment of ocean observatories.



Scientific Sea Drones Are Becoming the Eyes of the Navy.

From hunting and hiding submarines to planning SEAL missions, a fleet of 65 aquatic, submersible drones is already giving the U.S. Navy a tactical advantage.


Last fall Rutgers University ocean researcher Oscar Schofield headed a collaborative experiment called Gliderpalooza, which coordinated 15 aquatic, submersible research drones to sample the deep waters off the coastal Atlantic. About 5 feet long and shaped like tomahawk missiles, the gliders beam home their data every time they surface. The propellerless drones, jam-packed with scientific instruments, swim by changing their buoyancy—taking on and expelling a soda can's worth of water to sink and float. And they navigate under the waves by themselves. "The gliders are autonomous, so you just throw them in the water and off they go," Schofield says, though they can also take directions from operators when they surface.  With this robotic flotilla—part of the new wave of ocean-going drones—Schofield and his colleagues could gather a detailed picture of the ocean's temperature, currents, wildlife, and water quality at depths up to 650 feet. But even as ocean researchers use these gliders to track fish and help predict storms, the drones have attracted another admirer—the U.S. Navy.  "Right now the Navy is at the forefront of this technology," Schofield says, "and the Office of Naval Research really funded and developed these gliders in the first place." The Navy currently owns 65 of the same kind of gliders Schofield operates, with plans to expand to 150 by 2015. But the Navy's interest isn't exactly in science. The fleet of gliders is helping the Navy gain a tactical advantage in the ocean's future war zones. Operational Planning"As the Navy plans for operations, they have to look into the future," says Frank Bub, the lead ocean modeler at the Naval Oceanographic Office. In other words: As the Navy maps out anything from a SEAL team silently breaching onto shore to a subsurface naval exercise, it must predict how the movement of the seas will affect its plans. "The Navy relies on ocean models not just to forecast future conditions but to fill in the gaps where data may never have been collected," Bub says.  This is where the gliders come in. By sending a scientific drone through or near an area of interest, the "gliders provide us real-time ocean data, and that has two major applications," Bub says. The Navy can use that data not only to check the accuracy of its models, but to adjust or correct them.  "If the Navy SEALs have a mission and they're going ashore, they definitely want to know what the ocean conditions are from when they leave their mother ship to when they land on the beach," Bub says. Gliders could provide temperature data so the SEALs wear the right gear, or gliders could give the most accurate description of currents so the SEALs swim in the right direction as quickly and quietly as possible.  Where the gliders can have the biggest impact are the places where the Navy can't or isn't allowed to go. While he's not at liberty to list them all, Bub points to places where the Navy currently has significant interest: "The Navy is in the western Pacific, the northern Indian Ocean, and the Navy spends time in the Mediterranean," he says. It's in these places (perhaps even around the increasingly tense East China Sea) that gliders could slip in silently to gather intelligence. "The gliders are clandestine," Bub says. "They spend very little time on the surface, they're not generally detectable, and although they communicate through the Iridium satellite system, they've been encrypted."  And Schofield says this type of clandestine mission could be done from far away. Even though the gliders swim at less than a mile per hour, their propellerless propulsion and battery packs allow them to stay at sea for up to a year. "And you can launch a glider pretty far away from a region of interest. I could deploy one a hundred miles away from where I have it fly in," Schofield says.

Hunting and Hiding Submarines. Much of the time submarines operate in the dark—they're often deployed to places with limited oceanographic data. Schofield uses temperature as an example. "Satellites observe sea surface temperature by using infrared light," he says, "but infrared light penetrates only centimeters into the water, so you can't really extract any information from very deep in the ocean." Without satellites, ocean modelers rely only on a few thousand global research buoys as well as ships and research stations, which combine to provide an uneven and low-resolution picture.  Bub says it's crucial for a sub commander to understand both the temperature and salinity of deep waters. That's because the key to avoiding detection is to understand not only how much sound you're producing but where and how far it's traveling, and temperature and salinity play important roles in how sound propagates underwater.  "Sound in warm water goes faster than sound in cold water, and just like light, it will refract and bend," with changes in the salinity, depth, and temperature of the water, Bub says. "So for submarine warfare, the key is to take these qualities and convert them into sound speed. Then we can run acoustic models and find out how the sound propagates through the ocean." Here, too, undersea gliders—which take snapshots of the deep ocean several times per second—are ideally suited for the job. Although the current Navy drones can reach a depth of only 3000 feet, the Navy already has plans for a newer version that could dive to more than 1 mile below sea level. By mapping the deep seas, the Navy thinks it can find places that are best for hiding subs.  "And on the other hand, our destroyers and other antisubmarine warfare ships want to know where other submarines are," Bub says. By taking advantage of our glider-aided acoustic models, "we can actively put sound in the water," with things such as active sonar and sonobuoys, "which travels on paths that are determined by our ocean models," he says.

Submerged Submarine Launches Aircraft.

An all-electric, fuel cell-powered, unmanned aerial system (UAS) aircraft has been successfully launched from the submerged 'USS Providence' (SSN 719) & flew a several hour mission demonstrating live video capabilities streamed back to the submarine, surface support vessels and Norfolk base before landing at the Naval Sea Systems Command Atlantic Undersea Test and Evaluation Center (AUTEC), Andros, Bahamas. From concept to fleet demonstration, the Navy says this idea took less than six years to produce in a collaboration between the U.S. Naval Research Laboratory (NRL) with funding from SwampWorks at the Office of Naval Research (ONR) and the Department of Defense Rapid Reaction Technology Office (DoD/RRTO).The successful submerged launch of a remotely deployed UAS offers a pathway to providing mission critical intelligence, surveillance and reconnaissance (ISR) capabilities to the U.S. Navy's submarine force. The NRL developed aircraft XFC UAS - experimental Fuel Cell Unmanned Aerial System - was fired from the submarine's torpedo tube using a 'Sea Robin' launch vehicle system. The Sea Robin launch system was designed to fit within an empty Tomahawk launch canister (TLC) used for launching Tomahawk cruise missiles already familiar to submarine sailors. Once deployed from the TLC, the Sea Robin launch vehicle with integrated XFC rose to the ocean surface where it appeared as a spar buoy. Upon command of Providence Commanding Officer, the XFC then vertically launched from Sea Robin. The XFC aircraft is a fully autonomous, all electric fuel cell powered folding wing UAS with an endurance of greater than six hours. The non-hybridized power plant supports the propulsion system and payload for a flight endurance that enables relatively low cost, low altitude, ISR missions. The XFC UAS uses an electrically assisted take off system which lifts the plane vertically out of its container and therefore, enables a very small footprint launch such as from a pickup truck or small surface vessel.


Robot Turtle Assists with Shipwreck Inspections.


The Robot Safari in the London Science Museum, UK, taking place from 29 November to 1 December 2013, will include the world premiere of the underwater robot called U-CAT, a highly manoeuvrable robot turtle designed to penetrate shipwrecks. U-CAT’s locomotion principle is similar to sea turtles. It can swim forwards and backwards, up and down and turn on the spot in all directions. Manoeuvrability is a desirable feature when inspecting confined spaces such as shipwrecks. The robot carries an onboard camera, and the video footage can be later used to reconstruct the underwater site.


U-CAT Underwater robot turtle


Conventional underwater robots use propellers for locomotion. Fin propulsors of U-CAT can drive the robot in all directions without disturbing water and beating up silt from the bottom, which would decrease visibility inside the shipwreck, according to Taavi Salumäe, the designer of the U-CAT concept and researcher in Centre for Biorobotics, Tallinn University of Technology.The so-called biomimetic robots, which are robots based on animals and plants, are becoming an increasing trend in robotics where science tries to overcome the technological bottlenecks by looking at alternative technical solutions provided by nature.Underwater robots are nowadays mostly exploited in oil and gas industry and in defence. These robots are too big and also too expensive to be used for diving inside wrecks. Shipwrecks are currently explored by divers, but this is an expensive and time consuming procedure and often too dangerous for the divers to undertake. U-CAT is designed with the purpose of offering an affordable alternative to human divers.U-CAT is part of an EU funded research project ARROWS, which is developing technologies to assist underwater archaeologists. The technologies of the ARROWS project will be tested in the Mediterranean Sea and in the Baltic Sea, two historically important but environmentally different regions of Europe. In the ARROWS project, the U-CATs would work in cooperation with larger underwater robots and together with image recognition technologies for discovery, identification and reconstruction of underwater sites, would facilitate the work in all phases of an archaeological campaign.In London Science Museum, the team will show the U-CAT robot as well as its interactive downscaled model U-CATs operating in an aquarium.


 Phoenix ROV.


 Phoenix International Mobilising CURV21


In early August 2012, at the direction of the Naval Sea Systems Command’s Director of Ocean Engineering, Supervisor of Salvage and Diving (SUPSALV), Phoenix mobilised the Navy’s ORION deepwater side scan sonar system, the CURV 21 remotely operated vehicle (ROV), and the Navy’s motion compensated, 30,000 pound Fly-Away Deep Ocean Salvage System (FADOSS). All equipment was transported over land from Phoenix’s facility in Largo, Maryland, to Dover Air Force Base in Delaware. From there, military transport aircraft moved the equipment to Hawaii, where the gear was loaded aboard USNS Navajo (T-ATF 169). After finding the debris, Phoenix personnel deployed the CURV 21 deepwater ROV system and conducted a detailed video survey of the area in which several high-priority items, including the Flight Data Recorder and engine, were identified. Over the next 10 days, the Phoenix team piloted the CURV 21 ROV through 12 dives and recovered all critical items desired by the embarked accident investigating board. Throughout the operation, Phoenix search and recovery personnel worked tirelessly to overcome a number of significant challenges, including extreme water depths, and adverse weather conditions to include erratic high winds, large waves, and strong currents to successfully complete this operation. Phoenix provides manned and unmanned underwater operations, design engineering, and project management services to a diverse set of clients worldwide. Expertise is available from six regional offices in the areas of wet and dry hyperbaric welding, conventional and atmospheric diving, Autonomous Underwater Vehicles, Remotely Operated Vehicles, and other robotic systems and tooling.


Harkand makes waves with £19m ROV deal.

Harkand, a subsea services group backed by private equity firm Oaktree Capital and energy industry veteran Tom Ehret, is splashing out £19 million on mini-submarines as it dives into booming oil markets around the world. The Aberdeen-based group, formed when Ehret brought together Andrews Survey, Integrated Subsea Services and Iremis with money from Oaktree, is buying a series of remotely-operated vehicles (ROVs) and recruiting 30 staff as it positions itself to take advantage of projected growth in the inspection, repair and maintenance market. It said the deal with Forum Subsea Technologies for various classes of submarine types will extend its ROV fleet by about a quarter to 29 vehicles.  The deal includes three Triton XLX 150HP workclass ROVs and one Comanche, with an option for a further two vehicles of a similar class. The Triton is used for a wide variety of survey, construction and drilling support operations and can dive to 3,000 metres, while the smaller, electrically powered Comanche provides a cheaper option for some oil rig support tasks. Two of the vehicles will be delivered to Aberdeen and used to bolster Harkand’s existing European based fleet of ROVs. The others will be used to support the international arm of the organisation for deployment on new projects in Australia, Singapore and West Africa. It will also see the company expand its offshore workforce with positions for up to 30 ROV technicians created. Of these, 15 will be based in Aberdeen and the remainder across the company’s operations in Asia Pacific. Harkand chief executive Nicolas Mouté said: “This significant investment reflects our strong commitment to grow as a market-leading IRM [inspection, repair and maintenance] contractor worldwide and ensures we have the necessary people and equipment in place to meet the existing and planned requirements of the company.” David Kerr, managing director of Harkand ISS, the division formed from Integrated Subsea Services, said the company was already experiencing a strong order book for the year ahead.  “Investing in reliable, powerful and high-performance assets that develop our global ROV capabilities allows us to continue delivering a premium service to our customers as they operate in some of the most challenging oil and gas provinces in the world,” he said. The group was launched in February 2013 through the merger of the three component firms and employs some 750 people at bases in Aberdeen, Dubai, Perth in Australia and Singapore. At a recent subsea services industry conference in Aberdeen, Ehret said he aims to grow turnover to $1 billion (£650m) in the next five years by focusing on the maintenance, inspection and repair subsea market.

ROVs prepare  for Nuclear fuel retrievals.


Mini submarine picking up fuel rods 

ROV picking up fuel rods.


Mini submarines or more correctly Remotely Operated Vehicles (ROVs) are being used at Sellafield to consolidate historic nuclear fuel and prepare it for retrievals. Nuclear fuel consolidation is the next move in the complex game to decommission the 1950s First Generation Magnox Storage Pond (FGMSP).  The plan is to progressively retrieve and treat the Magnox spent nuclear fuel, radioactive sludges, miscellaneous nuclear wastes and fuel containers stored underwater in the legacy pond.  The ROV has an attached robotic arm which can pick up individual fuel rods.  The first 12kg spent fuel rod was successfully retrieved from the bottom of the seven-metre-deep fuel storage pond last year.  Since then, further trials have proved the ability of the ROVs to consolidate fuel in preparation for fuel retrievals from the pond. Sellafield Ltd Technical Manager, Phil Toomey said: “The ROV trials have demonstrated that we can successfully sort, segregate and consolidate fuel between containers and from the floor to containers. “We’ve moved over 4500kg of fuel rods using ROV technology, and some 50kg of spent fuel has been recovered from the pond floor and placed into containers ready for export.”  ROV pilots have had to train and practice extensively to gain the necessary dexterity to manoeuvre the ROV into position to safely pick up the fuel rods in an underwater radioactive environment. Martin Leafe, head of FGMSP programme delivery said: “We’re working hard to decommission the FGMSP and recovering and consolidating historic fuel will help to reach our goal of removing one of the high hazards at Sellafield.  The FGMSP team has overcome yet another barrier to cleaning up the pond demonstrating real progress to our customer the NDA.” Further development work is on-going with suppliers James Fisher Nuclear, Rovtech Systems Ltd, Hydrolec and VideoRay to extend the ROV capability to support decommissioning at Sellafield.


New NOAA ROV On Ocean Trials.

The 6,000-meter-rated remotely operated vehicle (ROV) system will be tested from 'Okeanos Explorer' in the 2013 field season. Dave Lovalvo, project manager for the NOAA Office of Ocean Exploration and Research’s Deep Submergence Group and his team has built and will be testing the ROV during the 2013 field season. The vehicle will be operated from the NOAA Ship Okeanos Explorer, America's only U.S. government ship that is dedicated to the sole purpose of exploring the world’s oceans.The vehicle weighs in at 9,200 pounds, has an overall length of 10.5 feet, and stands an impressive 8.5 feet tall. It carries a minimum of six underwater video cameras, two of which are high-definition; a large array of the newest LED lighting technology; and an available sensor payload of over 400 pounds. Two seven-function hydraulic manipulators, a hydraulically actuated sensor platform, full color sector scan sonar, and a fully integrated inertial navigation system are all standard capabilities of the new system.



Nearly 100 years after the three-masted schooner, the Hattie Wells, sank in Lake Michigan during heavy weather, it has been filmed by the most advanced ROV of its kind in the world. A key element of the mission undertaken by a team of marine archaeologists has been to prove the value of using an ROV to document shipwrecks in America's Great Lakes, says Dr Mark Gleason, chief marine scientist and director of education at Great Lakes Naval Memorial and Museum (GLNMM).  By turning to specialist ROV operator, Seaview Systems, they were able to cut the cost usually associated with launching an ROV from a large support vessel by using the compact but highly sophisticated deep-rated Saab Seaeye Falcon DR ROV. Matthew Cook of Seaview Systems explains that marine archaeology requires the collection of high quality video, still images and environmental and position data of a shipwreck in order to capture the full historical significance of the site.  He sees an ROV as representing a very efficient means of collecting this information in a wide range of water depths. 'One of the larger expenses in a research project,' says Matthew Cook, 'is the support vessel from which ROV operations are conducted. Since 2006 we have been leveraging the benefits of the compact fiber optic Falcon DR which can dive to 1000m from relatively inexpensive vessels of opportunity, in order to explore a range of historic shipwrecks, corals and other benthic habitats. 

Falcon launched into Lake Michigan.

'The fiber optic Seaeye Falcon DR represents an ideal balance of capability and ease of mobilization in a small, powerful and stable package. By deploying from a relatively inexpensive vessel of opportunity, project budget is conserved allowing for a longer, more detailed campaign.  Running a wide bandwidth fiber optic system means the vehicle is able to support a host of sensors and cameras normally only found on larger vehicles.' The Hattie Wells project that has included archival research, sidescan survey and ROV dive operations, has brought together representatives from government, private business and educational non-profits. Built in 1867 the Hattie Wells was originally a 135 ft three-masted schooner, later lengthened by 30 ft and the rigging removed. Over the years she courted disaster on a number of occasions including collision, grounding and a lightning strike. After grounding in 1892 she was given up for lost but was later salvaged as a wreck and towed back to Detroit for refit. Once again afloat, she continued in service, later as a barge. In November 1912, whilst hauling timber, she hit heavy weather and took in water. Shifting cargo smashed the pilot house containing the donkey engine that powered the bilge pumps. With the only means of removing water gone, the vessel was doomed to sink and so the towing tug cut the hawser and rescued all five hands on board. The Falcon DR has a world-wide following with over 220 in use offshore, inshore and down tunnels. Users are attracted by the Falcon's reputation for power, reliability and unequalled stability in strong cross-currents - particularly in a vehicle small enough to be manhandled into the water. Rapid role-change during operations is a key feature where intelligent electronics offer a 'plug and go' simplicity that allows up to 128 devices to be added and changed easily, such as extra cameras, lights, tracking system, manipulator and sonar, plus the option of adding special tooling on a removable skid. Its unrivalled finger-tip manoeuvrability comes from five brushless DC thrusters with velocity feedback for precise and rapid control in all directions and an ability to hold steady in strong cross currents.  The deep rated Falcon has built-in fibre optics for high volume data transmission over its long umbilical, and the ability to use broadcast quality video cameras. It also has tilting variable intensity lights linked to its camera tilt mechanism for superior illumination when filming above or below the vehicle. Dr Gleason of GLNMM concludes, 'I think it is safe to say each organisation had different objectives. Ours was to demonstrate, through a real project, the usefulness of this type of ROV in documenting shipwrecks in the Great Lakes. Plus we wanted to work in partnership with Seaview, NOAA and MSRA/NUMA to explore a new shipwreck and hopefully be able to partner on larger projects in the future.



With the Caspian seabed a hazardous jungle of un-recorded old pipes and cables from the Soviet era, a Cougar XT ROV from Saab Seaeye is to become a vital investigative tool now that new pipelines are being laid. After a favourable experience operating the vehicle elsewhere, highly skilled engineers of the State Oil Company of Azerbaijan, SOCAR, decided to deploy the Cougar XT in the Caspian Sea for their underwater applications. The ROV will be used for diving and pipeline inspection of the SOCAR current projects, and for future seabed inspection as new pipes are laid.  In addition to pipeline inspection and seabed survey, it will be used for a variety of tasks including the inspection and survey of vessels and platform legs. SOCAR has taken a high-spec version of the 2000m rated Cougar XT with an upgraded video package including two Kongsberg high-definition mono low-light cameras, two Kongsberg colour zoom cameras, pan and tilt platform and LED lighting.  The ROV will be launched from a Saab Seaeye stainless steel tether management system fitted with a camera and upgraded MUXs.  Deploying the Cougar will be a crane style launch and recovery system, supplied with a bullet/swivel assembly and lock latch assembly, together with an A60 zone ll rated ROV control cabin.


A more powerful ROV than any other of its class on the market has been launched by top manufacturer, Saab Seaeye.  The Panther XT Plus, rated for operation to a depth of 1500m, is the latest addition to the successful Panther range - and with two systems already sold for delivery in the first quarter of 2011 this latest version is generating considerable interest in the ROV market. The new advanced ROV gives operators about double the horizontal thruster power compared with the Panther XT, which makes it the most powerful ROV in its class with over 50% more thrust than its nearest competitor. Its power to weight ratio is also over twice its nearest competitor providing exceptional response and precise control. Packed with ten powerful thrusters, not only can it swim over 30% faster than anything else of its type, but it can hold steady in strong cross currents, making it an ideal vehicle for survey work. Having ten thrusters in hand also brings peace of mind to operators working to a tight deadline or in difficult conditions by offering a reassuringly high degree of redundancy. In addition to unrivalled thrust performance, the front end of the Panther XT Plus has been re-designed to accommodate industry standard seven function position feedback manipulators providing the operator with heavy-duty power and precise control allowing faster completion of complex manipulator tasks. To accommodate the larger and heavier manipulator arms and provide additional capacity to fit further tools and sensors the vehicle payload has been significantly increased over the standard Panther XT.  For the ROV operator, another significant advantage of increased power found in the new light-work ROV, is an ability to carry a greater range of tooling options for a wider range of tasks, including work, observation and survey, all in a small footprint. This need for less deck space, around a quarter of an equivalent hydraulic vehicle, together with fewer crew and lower vehicle cost, gives an overall lower cost of ownership that lies behind the success of the long established Panther range, a design concept that can match an hydraulic equivalent in most work tasks including drill support, IRM, survey and some construction tasks.


Robotic Submarines Removing Oil Leak.

Robotic submarines removed the cap that had been placed on top of the leak in early June to collect the oil and send it to surface ships for collection or burning. BP aims to put a new, tighter cap in place and said that, as of Saturday night, the work was going according to plan. If tests show it can withstand the pressure of the oil and is working, the Gulf region could get its most significant piece of good news since the April 20 explosion on the BP-leased Deepwater Horizon rig, which killed 11 workers. BP began trying Saturday afternoon to remove the bolted top flange that only partially completed the seal with the old cap. Video images showed robotic arms working to unscrew its bolts. Wells said that could last into Monday depending on whether the flange can be pulled off from above, as BP hopes. If not, a specially designed tool will be used to pry apart the top and bottom flanges. Once the top flange is removed, BP has to bind together two sections of drill pipe that are in the gushing well head. Then a 12-foot-long piece of equipment called a flange transition spool will be lowered and bolted over it. The second piece of pipe inside the well head came as something of a surprise, and raises the possibility that one of the sections of pipe became jammed in the Deepwater Horizon's blowout preventer, though which the well pipes run. The failure of the blowout preventer, a massive piece of equipment designed to stop the unchecked flow of oil, is partly to blame for the size of the spill. Ultimately, BP wants to have four vessels collecting oil within two or three weeks of the new cap's installation. If the new cap doesn't work, BP is ready to place a backup similar the old one on top of the leak. The government estimates 1.5 million to 2.5 million gallons of oil a day are spewing from the well, and the previous cap collected about 1 million gallons of that. With the new cap and the new containment vessel, the system will be capable of capturing 2.5 million to 3.4 million gallons - essentially all the leaking oil, officials said. The plan, which was accelerated to take advantage of a window of good weather lasting seven to 10 days, didn't inspire confidence in the residents of the oil-slicked coast. Robotic submarines working a mile underwater removed a leaking cap from the gushing Gulf oil well Saturday, starting a painful trade-off: Millions more gallons of crude will flow freely into the sea for several days until a new seal can be mounted to capture all of it. There's no guarantee for such a delicate operation almost a mile below the water's surface, officials said, and the permanent fix of plugging the well from the bottom remains slated for mid-August. How It Would Work. The latest effort to cap and contain the Gulf oil spill is a multistep process.


Here's how it would work:

1. The existing containment cap will be removed - perhaps in a matter of minutes.

2. Robot submarines will then remove a stub of pipe that's bolted to the top of the blowout preventer. That could be tricky, involving the removal of six large bolts. Once the stub is removed, that will expose a flat plate, or flange.

3. Two pipes that are sticking up inside the blowout preventer will be then strapped together.

4. BP will then install a cylindrical device over the protruding pipes that will be bolted down onto the flange.

5. BP will then install a manifold, or valve system, on top of that cylindrical device.

6. Once that valve system is in place, BP will need to connect four pipes or houses to oil processing ships at the surface. That should be enough to capture 60,000 to 80,000 barrels of oil per day, which should be enough to capture all the oil from the runaway well. Federal officials estimate that the well is spewing between 35,000 and 60,000 barrels of oil per day.


Robotic Submarines Navigate Underwater Course Autonomously.


Teams from nine universities gathered at NATO's Undersea Research Center to pit their robotic submarines against each other. Hanwha, a Korean conglomerate involved in the chemicals, explosives and defense sectors, is set to advance into the commercial market for unmanned submarines after securing the government’s commitment for technology transfer. According to the Ministry of Land, Transport and Maritime Affairs, Hanwha has agreed to purchase core technologies involving the designing and manufacturing of unmanned submarines that have been developed by the state-run Korea Ocean Research and Development Institute (KORDI) since 2007.  The global market for unmanned submarines is currently divided between companies from the United States, Canada, Britain, Norway and Russia, and the front-runners have been serious about preventing potential rivals from accessing their technologies.  Korea, eager to get a slice of the market, was willing to start from scratch. About 3.5 billion won ($2.9 million) in taxpayers’ money was spent on KORDI’s research, ministry officials said, and Hanwha will be paying 7.5 billion won for the results. Robotic, remote-controlled submarines, which are capable of gliding through the ocean and penetrating inaccessible spots, are garnering increasing attention from governments and companies for their distinctive edge in exploration. The current model designed by KORDI is capable of patrolling shallow waters less than 500 meters deep, but the government is financing a separate project to develop unmanned submarines that could reach depths of 6,000 meters. Hanwha is expecting healthy demand for its future unmanned submarines, including potential interest from the military. The unmanned submarines could be used for monitoring territorial waters, exploring for resources or supporting oceanographic studies. They could also be used to investigate pollution in rivers, said a Hanwha spokesman. These machines could also provide a more effective way to patrol sea boarders and detect and destroy mines.


For working Brazil’s vast oil fields − bigger in size than the State of Florida − Brazilian-based underwater operator, Belov Engenharia, has switched to Saab Seaeye ROVs. It is the first purchase of Saab Seaeye vehicles by Belov, founded in 1981 and a key provider of services across civil, harbour and offshore operations.

General Manager, André Weber Cameiro says they changed to Saab Seaeye, “because Saab Seaeye has a reputation for reliability and fewer maintenance problems”.

He explains why he chose the Lynx ROV in particular:

“It has the power to handle a wide range of work-class tooling, not usually possible in an ROV of its size, yet still has enough power left to go where you want, and do what is needed,” he says.

The Lynx − and deep-rated Falcon ROV, also ordered − will work from fixed rigs in and around jackets and semi-submersibles, where operationally quick and easy system re-location is important.

The Lynx – more powerful than any ROV of its size.

“The ROV system will be in a state of constant mobilisation as it will be moved from one side of a rig to another,” says André Weber Cameiro, who sees the Lynx system, with its tether management cage, as being particularly easy to move around.  The same mobility can be said of the compact Falcon ROV, which is specifically designed to be easily manhandled for fast deployment from a rig, a vessel, or even from a RIB.

The 1500 metre rated Lynx ordered by Belov, with its six powerful thrusters and four simultaneous video channels, is fitted with a range of hi-spec equipment.

This includes a Konsberg high definition colour camera, a Kongsberg mono Low light camera and two Konsberg compact colour zoom cameras; a Tritech Super SeaKing Sonar, along with a CDL fibre-optic gyro.

A detachable tooling skid is also supplied together with a Gauntlet Plus, four-function manipulator and a CP contact probe.

The tether management system, from which the ROV is launched, has 1200 metre of armoured umbilical cable and 250 metres of ROV tether cable. The TMS also comes with its own mini wide-angle B&W camera.

Deep rated Falcon with tooling skid
and manipulator

The 1000 metre rated Falcon is also fitted with a Kongsberg camera, five-function manipulator, rope cutter and CP probe.

With over 200 billion barrels of reserves estimated in Brazil’s oil fields, the demand for powerful and intelligent ROVs that can work reliably in deep water operations will grow as the huge fields are developed.



OceanServer has received a fourth contract from the University of Michigan for an Iver2 EP42 equipped with Side Scan Sonar, 10 beam DVL and ADCP. Early this year, OceanServer delivered the University’s third vehicle for service in the Great Lakes. The new vehicle will be used as part of the Great Lakes Observing System Tributary Monitoring project with funding from the Great Lakes Restoration Initiative. The project looks at monitoring five separate Areas of Concern across all five Great Lakes, using different monitoring methods. The University of Michigan’s part of the project will be using the Iver2 AUV for surveying Saginaw Bay, an Area of Concern in Lake Huron. Researchers will use a Bottom Classification Software with the sonar to support an on-going study of Cladophora growth that leads to unsightly and foul smelling muck on the beaches. The new Iver vehicle will also be used for mapping fish habitats and reefs. All Iver2 AUV models come standard with OceanServer’s VectorMap Mission Planning and Data Presentation tool, which provides geo-registered data files that can be easily exported to other software analysis tools. This unique AUV design has enabled OceanServer to carve out a very strong position in the research space for Autonomous Underwater Vehicles, sensors and behavioral studies. The VectorMap program can input NOAA ENCs or any geo-referenced charts, maps or photo images, allowing the operator to intuitively develop AUV missions using simple point-and-click navigation. The base vehicle, with a starting price at just over $50,000 USD, gives university, government and commercial users an affordable base-platform for sensor development or survey applications in water quality, sub-surface security and general research.



An inshore cable survey system that cleverly senses the presence of cables, and uses a smaller ROV than usual, is set to significantly cut the cost of survey work in the burgeoning marine energy industry. Costs can be cut from £500,000 for a conventional system to just £150,000 for this innovative new solution. Cleverly, Submagnetix, a division of Innovatum, has integrated their system with the compact Saab Seaeye Falcon ROV to create a small and rapidly mobilised package that can be deployed from a small vessel, ready to survey all types of inshore and coastal submarine cables and pipelines. Called SMARTRAK 9, it is the only system in the world that can sense cables carrying either AC or DC current; and cables carrying no current or signal at all. It can also sense steel pipelines. The Seaeye Falcon ROV is fitted out with a Tritech Super SeaKing profiler system to provide high quality cross-sectional profile data of the seabed; to give underwater ROV positioning a Tritech Micron-Nav USBL navigation transducer along with pitch and roll sensing; an accurate flux gate compass; a high accuracy altimeter and a pressure sensor for depth.  For survey work, the Seaeye Falcon has the advantage of a low electrical and acoustic noise signature allowing for optimum survey sensor data. It also has the power and manoeuvrability to give unrivalled stability in strong cross currents.  And with over 200 in use around the globe, the Falcon has the reliability of a trusted design that is packed with technological innovations including intelligent ‘plug-and-go’ electronics that enable different tooling to be added and changed as needed.




Hibbard Inshore, the Michigan based deep tunnel and underwater specialist is first to order the new Saab Seaeye Sabertooth hybrid long-range AUV/ROV.

Although ideal for hard to access subsea tasks, the Sabertooth hybrid has found its first role high in the Rocky Mountains.

Hibbard was quick to spot the benefit of a powerful vehicle that can swim 40 km down a tunnel at speed and cope with the kind of turbulent conditions that normally make life too unstable for primary inspection sensors.

It means that for the first time a complete shutdown of water flow during tunnel inspection is no longer necessary. 

Director Jim Hibbard was keen to pioneer the vehicle after seeing how the breakthrough product could benefit long tunnel projects around the world.


Sabertooth: combines the technologies
of AUV and ROV in a unified resource.

“Our confidence in trialling the product came because Saab Seaeye are people we can trust.”  Knowing the Sabertooth has evolved from Saab’s proven defence AUV into a vehicle suited to the commercial market using ROV technology proven in that sector, Jim Hibbard is sure of its capabilities. “No one is reinventing the wheel,” he says.


Robotic submarines of the future.

World’s oceans has no shortage of resources, on the contrary, there are untapped resources or resources for which is seeking means of exploitation. Most of untapped resources are found at deep in the sea, a depth of over 4,000 meters (2.5 miles). Such a high deep involves important technological resources for exploitation and also high increasing costs. The appetite for world’s resources are increasing, one common barrier found in exploitation of deep sea is the currently used technologies. A submarine controlled from a ship is always in contact with the user through cables. Is not yet invented an alternative technologies to substitute the cables used to control the submarines. Radio waves cannot propagate in the water, are the same as a train arrived at the end of the line from where it can go on. The optimal solution is not the use of thousands of meters of cable to control the submarine. In addition it is almost impossible to make an operation to thousands of meters deep with such a long cable. Exploitation the resources of the oceans in future belongs to robots. Used for many years for the most difficult and dangerous tasks, the robots represent the ideal solution for exploitation of resources found in oceans or sea. Since 1957 from the AUV concept of the University of Washington were made the first steps in developing autonomous underwater vehicles(AUV). Autonomous vehicles must comply with certain principles without which there can be chances of exploitation. These must be equipped with artificial intelligence to avoid obstacles, change course, and make other decisions in response to its environment.


Odyssey IV

Odyssey IV is the latest robot submarine built in the halls of science of MIT. Fortunately is not just a project on a piece of paper, is a completed and functional project. If in introduction I wrote about depth of up to 4000 meters, Odyssey IV perhaps more than. In a demonstration made by builders, the robot reached the impressive depth of 6000 meters in depth of the ocean. Diving speed is 1,4 m/s.
Odyssey meets all requirements of an autonomous robot. It can pick up samples and other cargo from the deep sea and bring them back to the surface for inspection and analysis. Retains its position in water with an accuracy of a few centimeters, as well as a predator that comes to hunting and wait for prey. Any exist on earth and is independent needs intelligence. The devices become smart using artificial intelligence. This is so well put into practice by researchers from MIT for Odyssey that it acts as an exemplary employee who makes his task on time and meet their program. The submarine has only 2 meter long. The design is inspired by nature, a design able to lead the device at the greatest depth in the shortest time. Not only its shapes do all the work to dive into the deep ocean. The submarine could not move up and down without the 4 four thrusters: one in the bow, one in the stern, and two mounted on arms that protrude from the sides of the vehicle and can be rotated about its lateral axis. The energy of the robot is provided by 648 lithium-ion cells that can power all systems a full day or more. The same batteries provide power for cameras mounted on submarine, images are received at the surface with a delay of several seconds. Images are transmitted by sound. Both the image quality and the time elapsed between sending and receiving images will be improved in future by using new technologies for data compression. The next steps in the development of this undersea platform is to increase the size and improving how to solve tasks independently.



Also in a university was born UJI, a robot submarine who can rescue black boxes or used for oil companies. UJI ,or made in UJI, is an autonomous robot which requires no human hand, is small and lightweight – weighs only 200 kilograms. If the robot from MIT resist in water at least one day, UJI robot has low performance. We can say that is an exemplary diver who can work only 8 hours in water. In all these hours of work the device can be loaded with up to 12 kg of material. The robot can be used in oil exploration in deep-sea rescue, treasure hunts and all sorts of objects in underwater archeology, clean ports, or take samples.


Unmanned Subs Making Waves In Undersea Warfare

Unmanned aircraft have been playing a major role in the wars in Iraq and Afghanistan for years. Now, the U.S. military is beginning to field unmanned submarines.

In a move that could dramatically cut the cost of undersea warfare, NATO is testing three Autonomous Undersea Vehicles, or AUVs, in the Mediterranean Sea this month as part of the alliance’s largest annual anti-submarine warfare exercise.

The AUVs, dubbed “gliders,” have much in common with their flying cousins, including wings, according to Michel Rixen, a scientist at the NATO Undersea Research Center in Italy.

“They are very similar vehicles although the dynamics are changed a little,” Rixen said. “What is peculiar to the AUVs are buoyancy controls.”

The battery-powered gliders, which are about 6 feet long and weigh up to 130 pounds, can be launched from shore or from a small rubber boat. They move through the sea at less than 2 mph, using a pump that inflates and deflates an internal bladder to change the vehicle’s buoyancy in the same way a scuba diver might inflate a buoyancy jacket, he said.

“The changes in buoyancy require much less energy than a propeller,” he said, allowing the vehicle to stay underwater longer than a propeller-driven AUV.

In 2009, a glider of the same type being used in this month’s Proud Manta 11 NATO exercise completed a trans-Atlantic crossing that lasted 221 days.

The gliders will be at sea for three weeks during the exercise, traveling up to 300 miles collecting data on water salinity and temperature and relaying it to scientists on shore, Rixen said. The data is important because it allows sonar operators to calculate the speed of sound through the water – something that helps them detect enemy submarines, he said.

In the past, such data was collected by manned submarines or surface ships.

“We are demonstrating that military oceanography can be conducted from the office, piloting the gliders remotely instead of sending a big submarine (in the case of covert operations) to do a couple of temperature and salinity profiles in the ocean,” he said.

The cost of sending a research ship to collect such data runs at $25,000 a day or more, said engineer Richard Stoner of the research center.

The three gliders — which were manufactured by Teledyne Web of Falmouth, Mass. — participating in the exercise have been at sea collecting data since Jan. 24.

As Proud Manta kicks off in earnest on Friday with six submarines, 19 aircraft and eight surface ships from 10 nations participating, the gliders moved outside the exercise area east of Sicily, Rixen said.

“We want to be careful in this first contribution,” he said. “We don’t want to have a glider hitting a submarine or vice versa.”

The U.S. Navy has conducted similar exercises with gliders, said Tom Curtin, the research center’s chief scientist.

In fact, the Navy is gradually acquiring more than 100 gliders and fielding them to operational units through the Naval Oceanographic Office, he said.

Eventually AUVs are likely to be fielded with the same capabilities as large submarines, Rixen said. Weapons could also be added to the AUVs, something that has already happened with unmanned aircraft, he said. “These are some of the aspects that we are considering,” he said. But he warned: “If these toys end up in bad hands that could play against us. Someone could potentially put [weapons] on them. That is something we need to be careful about.”


WHOI Selects Hydroid to Provide AUVs for Ocean Observatories Initiative

The Woods Hole Oceanographic Institution (WHOI) awarded .Hydroid (Pocasset, Massachusetts) an approxmiately $1 million contract to provide AUVs and docking stations to support the Pioneer Array of the Ocean Observatories Initiative (OOI), WHOI announced last week.

WHOI, as well as the Consortium for Ocean Leadership (COL), selected the company on for initial development and design modification of AUV systems to meet OOI specifications. Subsequent phases of the contract will lead to the delivery of production AUVs that will be used to collect data as a part of the OOI Pioneer Array located off the New England coast, with each vehicle capable of making more than 50 missions per year in water depths up to 600 meters.

The Pioneer Array spans the continental shelf-break, where water depths drop quickly from about 100 meters to greater than 500 meters over a distance of about 40 kilometers. The shelf break is a region of energetic and important ocean variability, a boundary region between cool coastal waters and warmer offshore and Gulf Stream waters. Biological productivity and variability are strong, and a goal of the Pioneer Array is to understand the interplay of physical and biological processes across many scales, from hundreds of meters to hundreds of kilometers.

"AUVs are a critical tool to rapidly sample variability on dynamically relevant scales within the complex frontal system," said Al Plueddemann, a WHOI senior scientist and project scientist for the Pioneer Array. "This capability is key to improving our understanding of interactions between the continental shelf and slope."


Irish-Led Mission Uses ROVs to Film Marine Life Three Kilometers Down

Undiscovered life-forms that thrive without sunlight in temperatures approaching boiling point may soon come to light thanks to an Irish-led marine research mission aboard the national research vessel Celtic Explorer. In collaboration with scientists from the U.K.'s National Oceanography Centre, researchers from University College, Cork, embarked yesterday from Galway, Ireland, for the Mid-Atlantic Ridge. The voyage is being filmed for the National Geographic Channel for inclusion in an upcoming series about the ocean.

The mission, led by Dr. Andy Wheeler of University College, Cork, will be investigating life at 3,000 meters below the surface of the sea on the hydrothermal vent field using the ROV Holland 1. These vents, which spew mineral-rich seawater heated to boiling point by volcanic material in Earth's crust below, are home to a rich variety of marine life that thrives in complete darkness on bacteria fed by chemicals.

"This expedition offers us the first opportunity to investigate mineral deposits and vent animals in this unexplored and important part of the Mid-Atlantic Ridge," said Dr. Bramley Murton of the National Oceanography Centre, Southampton, who first discovered the location of the vents on an expedition aboard the U.K. research vessel RRS James Cook in 2008, and who is now leading the mineralization study on the expedition.

"Nothing is known about the hydrothermal vents, their mineral deposits or the life they support on the Mid-Atlantic Ridge between the islands of the Azores to the south and Iceland to the north. Because this part of the ridge is trapped between these islands, vent animals may have evolved in isolation and be quite unique from elsewhere," he said.

The expedition will catalogue and characterize the species found at the vents and investigate the rich deposits of deepwater corals on the Porcupine Bank's "Moira Mound," which has already been designated as a special area of conservation.


Teledyne to Manufacture LBS-Glider UUVs for Navy

Teledyne Brown Engineering, Inc. (Huntsville, Alabama) received approval from the U.S. Navy to move into the full-rate production (FRP) phase on the littoral battlespace sensing-glider (LBS-G) program, parent company Teledyne Technologies Inc. announced July 11.

Valued at up to $53.1 million, the contract could provide the Navy with 150 marine gliders from the company if all options are exercised. Teledyne Brown will manufacture 35 gliders under the contract's first FRP option.

The Navy plans to use the fleet of deep and shallowwater gliders to acquire critical oceanographic data to improve positioning of fleets during naval maneuvers. The Teledyne Webb Research (East Falmouth, Massachusetts) Slocum Glider, a torpedo-shaped, two-meter-long UUV that uses changes in buoyancy as well as its wings and tail-fin steering to move through the water, is the cornerstone of the LBS-G program.

In its the contract with the Space and Naval Warfare Systems Command, Teledyne Brown recently delivered 15 low-rate initial production gliders to the Navy's Program Executive Office for C4I. The LBS-G gliders were developed and are manufactured by Teledyne Webb Research.


ROV Use in 2011 Up After Decline.


Remotely operated vehicle (ROV) statistics for 2011 have been published by the International Marine Contractors Association (IMCA, UK) as an information note (IMCA R 05/12). The 2011 figures show that IMCA members had fewer ROV personnel at work in 2011 than in 2010, and that ROV personnel numbers reported in August 2011 exceeded those in February 2011 by about 25%. The statistics, intended to record personnel and vehicle levels, are collected twice a year in February and August.


ROV simulation


In February 2011 a total of 2,410 personnel was reported to be involved in world-wide ROV operations (2,373 ROV superintendents, supervisors and pilot techs; and 37 other offshore ROV support personnel) compared with 3,018 in August 2011 (with the breakdown being 2,923 and 95). In February there were 473 ROVs involved in world-wide operations; and 536 in August 2011 – Class III, work-class vehicles, were by far the largest proportion of the total at both times of year (394 in February, and 440 in August). The figures provide a snapshot of activity on those two dates roughly six months apart, according to Jane Bugler, IMCA’s technical director. They do not include personnel on leave, sick or not working for any reason and only include those actually working on the two days of the survey. They do not take into account any major contract that may have been completed shortly before the days of the count, nor for that matter, one that may have started shortly after. They are divided by classes of ROV as defined in our ‘Code of practice for the safe and efficient operation of remotely operated vehicles’ (IMCA R 004). IMCA has collected statistics over many years for ROV personnel working in the North Sea, and in 2008 it was agreed that the collection of data should be widened to all geographical areas, and also to the types of ROV in operation. The purpose is to create a record and examine trends. There is a direct correlation between numbers of ROVs, team size and total numbers of ROV personnel. Since we are aware that many new ROVs will come into the market soon, this is exacerbating the shortage of competent personnel in this sector. IMCA is working with its membership to try to address this shortfall.


Subsea Robotics: ROV & AUV Market Trends.

The Duke University Center on Globalization, Governance and Competitiveness (CGGC) recently completed a study on ocean technologies, including remotely operated vehicles (ROVs) and autonomous underwater vehicles (AUVs), for a consortium led by Nova Scotia’s Department of Economic and Rural Development and Tourism (ERDT). Excerpts from the report on the market and technology trends in ROVs and AUVs are provided in this article.

Global Vehicle Sales (2010)   
ROVs ~ 850 million (US$)   
AUVs ~ 200 million (US$)

Demand Drivers for ROVs
•    offshore oil
•    security environment
•    need for ocean data   

Demand Drivers for AUVs
•    need for ocean data and mapping
•    increased functionality of AUVs
•    offshore oil (reducing ROV costs)

Market Dynamics:   
For ROVs
•    market for mini and small ROVs
•    increasing number of sensors and robotics on vehicles
•    reducing operational costs   

For AUVs
•    increased comfort with autonomous vehicles for monitoring and patrol
•    market for versatile products suitable for tough, physical environments

Technology Trends:   
 For ROVs
•    simplified user-interface
•    high-definition (HD) camera & video
•    reduced vehicle size
•    tether-optional (hybrid) ROVs   

For AUVs
•    increased functionality
•    longer mission life
•    reduced power requirements
•    miniaturization

ROV market and technology trends.

Global ROV vehicle sales in 2010 totaled approximately $850 million.  In 2010, oil and gas purchased approximately 50% of ROVs, while ROV sales for defense & security and scientific research equaled 25% for each sector. Market drivers for ROVs are offshore drilling, the security environment, and the need for ocean data. The prospect for offshore drilling varies by location, yet offshore exploration in Brazil, Nigeria, Indonesia, and the Gulf of Mexico are expected to be strong. In the security market, ROVs are routinely used for forward observation, reconnaissance, and mine counter-measures by the military. ROVs will increasingly be adopted by organizations charged with ocean rescue and port security seeking effective tools for scanning and observation, including hull inspection. The need for data on the oceans is driven by the need for creating detailed maps for navigation and minerals extraction, particularly in the Arctic.  The three market dynamics in the ROV market of particular note are 1) the growing market for mini and small ROVs driven, primarily, by their reduced cost and increased functionality; 2) the increasing number of sensors and robotics capable of being placed on vehicles; and 3) the reduction in cost of the platform relative to the cost of the instruments. The relative cost of instruments and platform is important to note because it indicates the maturation of the ROV technology. ROVs, although they remain highly sophisticated technology packages, have become adopted widely enough to expect continued cost reductions, or performance enhancements at the same cost.  Four technology trends in ROVs can be identified. The ROV industry is keenly aware of the need to simplify the interface between the ROV operator and the vehicle. Most ROVs in use have multiple screens for monitoring the ROV vehicle status (health), feeds from onboard cameras and video, robotic arm manipulation, and receiving feedback from data collection instruments. The trend is to simplify the interface by having information provided on one screen. The integration of multiple systems requires the development of software. ROV and instrument manufacturers are working to improve the integration of systems developed independently. This after-market integration between the platform and instrumentation is sub-optimal. In the future, functional integration will be incorporated into the design of ROVs and onboard systems.  The availability of relatively inexpensive High Definition (HD) camera and video has increased the demand for efficient data transmission from the ROV to the operator station. High definition allows better inspection of the underwater site due to improved quality of the image, better control of the vehicle, and allows for easy switching between video formats found in different parts of the world. The consequence is that the copper video transmission system used in most tethers must be replaced with fiber optic cable to accommodate the greater bandwidth required to transmit HD signals. Advances in fiber optic technology allow ROVs to communicate with the surface using millimeter-thin cables, allowing smaller diameters in the tether and reduced drag. The size of the average ROV is decreasing due to technological developments in instrumentation. Smaller ROVs are preferred to large ROVs, keeping everything else constant, because of better maneuverability and lower deployment costs. Small ROVs deployed by one or two-man crews are less expensive to operate than vehicles deployed with large landing and recovery systems (LARS) requiring several operators. Maintenance costs are also significant drivers for reducing the size of ROVs, particularly in the scientific research market. In the past, large vehicles were needed to house the instruments needed to accomplish the dive mission; however, as a result of the reduced size of onboard instruments, cameras and robotic arms (often with improved performance) the size of the required vehicle has been reduced. The exception to this trend is in missions requiring the completion of heavy intervention tasks, as in offshore construction, or in missions where payload capacity is critical. Another driver of reduced weight is the result of technology improvements allowing greater propulsion power through a given diameter of wire. This has allowed for reduced weight in the entire ROV deployment system, including lighter landing and recovery systems. Improvements in compact buoyancy have also reduced the weight and size requirements for ROVs. Hybrid ROVs (HROVs) are an interesting trend in the ROV market. Hybrid ROVs have tether-optional configurations in which the vehicle can conduct programmed missions free from the tether. The benefit of hybrid systems is increased maneuverability in locations where tethers would entangle or limit the ability to navigate around obstacles. Woods Hole’s Nerus and Saab’s Seaeye are examples of workclass HROVs. A number of manufacturers, including Seabotix, are making mini and small production HROV models. Canada’s ISE has experimented with HROVs as a way to reduce monitoring costs. According to interviews conducted by CGGC, HROV configurations are expected to be an option increasingly offered by ROV manufacturers, particularly in the mini and small ROV markets. AUV market and technology trends. The AUV market is smaller than the ROV market. According to industry interviews conducted by CGGC, the global annual expenditure on AUVs is roughly $200 million, dominated by U.S. manufacturers. Currently, the military/security market makes up approximately 50% of AUV sales. The scientific research market makes up approximately 30% of the AUV market. The oil and gas market makes up approximately 20% of AUV sales. The market is expected to grow to $2.3 billion by 2019 (Westwood, 2010). Interviews with leading AUV manufacturers consider the 30% compounded annual growth rate implied by this forecast to be optimistic. However, the growth potential of AUVs is clearly large. Military and scientific research markets are expected to make up more than 75% of projected sales through 2019 (Westwood, 2010).  AUVs increasingly will be used in the oil and gas market, primarily due to the cost of using ROVs. The increased functionality in AUVs and the demand for floating oil production systems and remote fields also are drivers for adopting AUVs.  The majority (~70%) of AUVs sold are rated for water depths less than 200m, illustrating the importance of small, light, shallow water AUVs for various end-markets. Of these shallow water AUVs, roughly 30% are rated for depths less than 30m. Unit sales forecasts through 2019 estimate that the majority of sales will occur in small AUV sales. However, large AUVs will dominate the projected $2.3 billion sales because of their high unit costs.  AUVs are still a relatively new ocean technology. The first recorded sale of an AUV occurred in 1985; 75% of existing AUVs were produced between 2001 and 2005. As newer technologies, the platform costs are greater than the instruments onboard. In contrast to ROVs, the AUV vehicle makes up the majority of the total cost of the vehicle. AUV platforms make-up, on average,66-75% of the cost (in comparison to 40% for ROVs), while instruments make-up 25-33% of AUVs. This of course depends on what instruments are included in the AUV. Some instruments (e.g., spectrometers, dissolved gas and nutrient sensors) are relatively expensive, while others (e.g., altimeters and pressure gauges) are inexpensive. The platform’s share of the total AUV cost is expected to decrease as incremental innovations in the vehicle are implemented. The technology trends in AUVs are increased functionality, longer mission life, reduced power requirements, and miniaturization. The trend in AUV technology is to increase their versatility from what essentially is an oceanographic data collection system to perform a greater variety of missions. AUVs are capable of mission lives up to a year, although this varies on the type of vehicle and amount of instrumentation onboard. Generally speaking, the greater the number of instruments onboard an AUV, the shorter its mission-life. AUVs have also been used in place of towed ROVs because of higher resolution capability made possible by reduced processing requirement when survey sensors are co-located on the vehicle. AUV surveys in deep water (>3000 meters) are conducted two to three times faster than in towed systems because AUVs have higher cruising speeds, do not require repeated turns and passes over the same locations, and provide higher data quality because of the stability of the survey platform.  AUVs are currently being developed in the military market for locating and disabling mines. The University of Hawaii and the U.S. Navy’s SAUVIM (Semi-Autonomous Underwater Vehicle for Intervention Missions) performed the first autonomous manipulation (the use of a programmable robotic arm) using feature based navigation in January, 2011 (MASE, 2011). Scripps Oceanographic Institute, the University of Washington, and the U.S. Navy developed the XRay Flying Wing prototype to track submarines and conduct remote sensing in shallow waters for up to 6 months.  A second trend is to increase the mission life of AUVs. Current AUVs can be deployed up to a year, after which batteries must be replaced and the vehicle reconditioned. The limitation on mission life is largely a power imposed constraint – the vehicle simply runs out of power to conduct its mission. Three developments have sought to address this limitation of AUVs. The first is the development of compact battery technology capable of storing more electricity. The second development is instrumentation and communication devices requiring less power. The third development is onboard power generation, either through the use of solar arrays kept above the ocean surface, or for gliders, through wave and bio-mimicking technology to power the vehicle. These developments could dramatically increase the mission life of AUVs. A third trend is to reduce the power requirements for AUVs. Two power requirements exist for an AUV: forward propulsion and power for onboard instrumentation, guidance, computers, and communication devices. Forward propulsion for most AUVs is generated from power stored in onboard batteries. This limits the mission life of AUVs since physical limitations on the number and size of batteries carried onboard exist. The weight of batteries is a key drawback since they reduce the payload available for other instrumentation. Gliders have overcome some of these difficulties by using changes in the vehicle’s buoyancy and onboard wings to propel the vehicle forward. Advances in mechanical design, particularly bio-mechanical engineering, may reduce or eliminate the need for stored onboard power in gliders in the near future. Researchers at the California Institute of Technology (US), Southampton (UK), Tokai University (Shizuoka, Japan), and the Delft University of Technology (Netherlands) have recently presented papers on biomechanical applications to AUVs. Most production glider models require stored power to bring the vehicle up at the end of its dive cycles. Onboard electronics are currently powered with onboard batteries or solar arrays. The use of solar arrays limits the depth the vehicle can dive; however, for extended ocean gathering and monitoring this configuration is well suited to the mission goals. The fourth major trend in AUVs is miniaturization of onboard instruments and vehicles. The application of nanotechnology to robotics and electronic equipment holds tremendous potential to develop small, highly sophisticated underwater vehicles. While the promise of nanotechnology continues to develop, AUVs have continued along the same path as ROVs to become smaller while simultaneously adding capabilities. The cooperation between platform builders and instrument manufacturers has been important in developing small, light, and low-power consuming instruments for AUVs.


Depth Milestone For University AUV.


A depth record has been obtained by the ISE Explorer autonomous Underwater Vehicle (AUV) Eagle Ray, a co-operative venture of the University of Southern Mississippi and the University of Mississippi. Operated by the National Institute for Undersea Science and Technology (NIUST), the Eagle Ray AUV completed a survey in the Gulf of Mexico to a depth of 1,634 metres.


Explorer AUV depth record


The survey was conducted at 50 metres altitude while acquiring multibeam sonar and chirp sub-bottom profiler data. We are currently operating from the LUMCON vessel RV Pelican. The AUV operations personnel are Roy Jarnagin, Undersea Vehicle Systems Engineer for NIUS Dr. Arne Diercks, Max Woolsey, Marco D’Emidio, Steven Tidwell, and Clayton Dike. Initially built and delivered in 2003, the Explorer class AUV is rated by the USM for deepwater operation to 2,200 metres. Its 5.5 metre length provides payload volume for mission-specific sensors, as well as the multibeam sonar and conductivity-temperature-density (CTD) sensor. Surveys greater than 150km long and deployments over 36 hours in duration can be achieved. In addition to Eagle Ray, NIUST operates a Woods Hole Oceanographic Institution (WHOI) SeaBED class AUV named Mola Mola. This vehicle also completed a mission to a depth of 1,612 meters. The Mola Mola vehicle acquires photographs of the seabed while operating at 3 metres altitude.


Future Military Robots To Be More Quiet, Lethal And Intelligent

A BAE System developed UUV, Talisman, during sea trials.


Militaries across the globe have begun implementing the use of robots for various military and naval activities. From autonomous underwater vehicles (AUV) to ground robots everybody wants a piece of the action. Australia has also undertaken an ambitious robotics project, the MoD is looking to develop a new generation of unmanned maritime drones that would be used for anti-submarine warfare and possible missile attacks on enemy ships. A fleet of Royal Navy unmanned underwater vehicles (UUVs) is already being used in the Gulf to help prevent Iran laying mines in important sea lanes, and ministers are now considering whether similar devices could be used to tackle pirates off the coast of Somalia. The Russian Navy also plans to equip the unmanned submarines in which the issue of the creation of an autonomous unmanned submarines fleet has been in discussion since 1980. Large UUV programs exist in Australia, Great Britain, Sweden, Italy and other countries. In the future, UUVs will be equipped with advances in machine intelligence, closed-system propulsion, long-life rechargeable batteries, digital data storage, through-water communications, and rugged-environment embedded digital signal, surveillance and reconnaissance relocatable covert communications and networking nodes; electronic warfare; anti-submarine tracking; and perhaps even weapons delivery. Military robots are as popular; next week the Pentagon will launch one of its robots to achieve greater autonomy. The PackBot, a tracked robot used by US troops to help clear bombs in Afghanistan, will get a number of upgrades that will allows it to operate autonomously in some situations, according to Tim Trainer, a vice president for product management at iRobot. Earlier this week, Israeli robotics developer Roboteam introduced a new miniature robot designed for intelligence gathering and counter IED operations. The ultra-light, 13-lb, highly maneuverable robot can be carried by an individual soldier, climbs stairs and 60° obstacles, operates effectively indoors utilizing secure MANET data link. The U.S military along with DARPA have begun researching ways for soldiers to use their minds to remotely control androids. The Pentagon has earmarked $7million for research into the project, nicknamed Avatar. The Pentagon recently began development of new chameleon robots. DARPA has built prototypes of the robot, which like a chameleon, changes color to blend in. The prototype is an early model with the robot tethered to the control system. DARPA officials said the next model will potential have more self contained hardware. It is clear that the military robotics arena is far more advanced and developed in comparison with its naval counterparts.  The  AUV market is set to expand up to $2.3 billion by 2019 while the military robotics field is expected to surpass $8 billion by 2016.


Fugro Introduces Electric ROV Version of Deepworks.


File Saab Seaeye Tiger ROV: Photo credit Fugro

The new version supports console integration of the Seaeye Tiger, Lynx, Cougar XT and Panther XT/XT Plus models. To cater for the training needs of a mixed fleet of ROVs, Fugro Operating Companies in UK, Singapore, UAE, Brazil, and Australia will be the first to benefit as an enhanced set of training configurations is rolled out across the company. DeepWorks now allows rapid building and evaluation of new electrical ROV configurations, helping operators find the best arrangement and mountings for cameras, sonars and tooling while ensuring the vehicle remains dynamically stable. As the range of missions electric ROVs undertake grows, DeepWorks offers a very cost effective way of building and testing multi-mission capability. For pilot training, the most important feature is replication of the Seaeye overlay which tells the pilot where the ROV is, its depth, pitch and roll and camera tilt angle. Replicating the actual user interface means that when pilots go offshore the console feels immediately familiar and missions can be performed as practised. Other built-in features to improve pilot skills and responses include independent viewpoint control, sonar interpretation and fault simulation at any point in the mission. Our investment in designing DeepWorks as a versatile simulation platform capable of providing simulation of any type of ROV is now paying off,” said Dr Jason Tisdall, Fugro’s Robotic Technologies Business Line Manager. “In just a few months we have integrated DeepWorks with the Saab Seaeye surface and hand control units, and delivered an ROV pilot trainer with true electric thruster response, accurate navigation overlay and realistic training scenarios for five of the most popular models of Saab Seaeye ROV.”


ROV Survey of the Costa Concordia Grounding Site.


Soon after the major disaster of the Costa Concordia cruise ship, which was grounded near the coast of Giglio Island, Italy, the Firemen Divers Department began searching the area around the ship's hull for passengers who might have drowned. There also were concerns that the ship might slip from her position along the coastal slope to a depth of about 70 metres, which would have seriously compromised further rescue operations. These tasks have been surveyed using an Ageotec Perseo ROV equipped with two cameras and a 5-function manipulator, which enabled more than 10,000 square metres of sea bottom to be surveyed as well as objects and samples to be collected.

The lack of an imminent risk of ship movement was rapidly assessed and allowed rescue teams to keep searching safely for missing passengers inside the cabins.

The Perseo and other Ageotec ROVs have been in use by the Italian Firemen Divers for nearly ten years now, and have proved to be an invaluable tool for search and rescue operations in coastal waters as well as in lakes and rivers, in terms of both reliability and ease of use. The Perseo can be deployed even from RHIBs with minimal requirements (launch and recovery can be handled by just 2 people, using a small crane), yet is capable of reaching 600m depth with a total payload of up to 40kg.


 Falcon ROV Films Deep-Sea Species for Oceana.

Conservation organization Oceana has explored undersea mountains in the Atlantic and Mediterranean using the Saab Seaeye Ltd. (Fareham, England) Falcon DR ROV. The 1,000-meter-rated ROV was used to record many species and habitats, including carnivorous sponges, lobsters and sharks. Oceana bills itself as "a pioneering NGO [nongovernmental organization] in the use of ROVs." The project began 240 kilometers off the Portuguese coast in the Gorringe Bank marine mountain range. Here, scientists filmed algae forests and hundreds of species, and noted the ecological value that seamounts offer to many species, including whales, dolphins and swordfish. They have found species whose existence on the Gorringe Bank was previously unknown. When they later explored the Chella Bank, offshore Almería, Spain, they found protected species such as a carnivorous sponge and an angular rough shark at risk from damage to their seamount habitat by recreational and commercial fishing. Hundreds of hours of ROV filming has enabled Oceana to gather essential scientific data. Being able to use transects that move the ROV along a path, rather than directly up and down, has given more comprehensive views. The high-definition cameras were manufactured and supplied by Marine Vision (Málaga, Spain), which also supplied the ROVs. The Falcon DR came over from the Gulf of Mexico, where Oceana had used it to assess the long-term impact of the Deepwater Horizon oil spill on marine ecology





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