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

Submarines and ROVs for sale and charter
SUBMARINES SUBMERSIBLES ROVS & SUB-SEA EQUIPMENT
Click here for our homepage
Click here to learn more about our profile
Click here for our complete submarine sales listing
Click here to learn more about our submarine engineering capabilities
Click here to learn more about our submersible and ROV motors
Click here to read our news letters
Click here for related links
Click here for information on how to contact us

  SILVERCREST SUBMARINES NEWS LETTER (2003).

 

Silvercrest/SME.

Tel: (+44) 1285.760620

Email: sales@SilvercrestSubmarines.com

 

Taurus Submarine.
As many of you know , we have been away in South Africa for the last few months with the Taurus submarine (six man, depth 1000ft). A very interesting dive location with some two thousand shipwrecks lost over the last few hundred years. Also lots of marine life including great white sharks (nearly as big as the sub!!). Taurus is currently available for short or long term charter. Contact Silvercrest for details.

BMIV Submersible for sale.
For sale in excellent condition, this four- man deep diving submersible with diver lockout facility. We also have immediately available a range of multi passenger tourist submarines, small two / three man submersibles, and one man ADS units. Pilot training and maintenance courses are arranged to support every submarine sale if required. Please contact us to discuss your exact requirements.

Israeli Sub Dakar.
The tragic loss of the Israeli submarine Dakar on her maiden voyage in 1968, and the discovery by Nauticos Corp. 30 years later, was the subject of a National Geographic underwater documentary shown on the National Geographic Channel in the United States recently. The Dakar was a WWII T-class boat, built by the British and sold to the Israelis after modifications, upgrades, and sea trials. In 1968, the Dakar was en route to Haifa via Gibraltar on her maiden voyage for delivery to the operational fleet. During this transit, communications inexplicably ceased and the submarine disappeared. Under contract for the Israeli Navy, Nauticos -- along with subcontractors Williamson & Associates Inc. (Seattle, Washington) and Phoenix International Inc. (Landover. Maryland) -- set out to find the Dakar in May 1999. The submarine was found badly damaged and resting at depth of 10,000 feet in the Mediterranean. For more, go to http://www.nauticos.com/

For Sale - the world's most advanced Tourist submarine.
The DS100 all acrylic submarine and support vessels . This amazing tourist submarine is currently available for sale complete with Support Barge/Dry-dock and passenger Catamaran for only US $2.965 million. An ideal package for an instant tourist submarine business. Actual replacement value for all three vessels is US$7.3 million. Available for immediate inspection. Joint venture may also be considered at US$1.5 million minimum. Submarine operating depth - 100 m. Passengers - 45. Crew - 2 . Length - 19 m. Weight in air - 90 tons.

The Support Barge was built specifically to support the DS100's operations. This 85 foot long, 95-ton vessel has extraordinary manoeuvring capability through two Schottel drives. It has an integrated hydraulic lift for dry-docking the DS100 from the water. The support barge also has the battery chargers, high-pressure air compressors, oxygen transfer pump, workshop space, tools and spare parts necessary to operate and maintain the submarine.

The DS100 Passenger Catamaran (14m long) is a high-speed passenger transfer vessel powered by twin 350 hp Caterpillar diesels. The catamaran is able of carry 90 passengers at speeds of 18 knots. Passengers are transferred to the stable support platform of the Support Barge where the DS100 docks after each dive. The replacement value is US$525,000.

U-Boat Submarine.
A unique opportunity to purchase a (U-boat), ex military diesel-electric submarine, 300 feet (90m) long. Designed for continental shelf operations, with a range of two thousand miles. These submarines are not in working order, and may have been partially stripped of some internal parts. Ideal for conversion to use as maritime museums, cocktail bars or restaurants in static locations. Crew: 75. Displacement: 2,475 tons. Two submarines available immediately, and ready for towing. Location England. US$287,000 each (as is where is). Contact Silvercrest for details.

Commander reveals future vision for Russian Navy.
The Russian Navy should have 12-15 strategic missile submarines, 50 nuclear-powered attack submarines and 35 diesel submarines as well as some 70 ocean-going surface combatants, according to its Commander-in-Chief, Adm Vladimir Kuroyedov.

Submarine web sites for your collection.
The following web sites will be of interest to all submarine and Rov enthusiasts.
www.Submarines-Rovs.com and www.divediscover.whoi.edu./

 

Deep Diving Submarine to S.Africa to film the Coelacanth Fish.
The deep diving submarine Taurus has been requested to film a unique colony of rare Coelacanth fish, recently located off the south east coast of Africa. The fish were discovered living in caves at the depth range of 300 to 600ft.

New Submarine Rescue System.
Following the tragic accident involving the Russian nuclear submarine Kursk, which sank in the Barents Sea, has stimulated worldwide interest in rescue systems. Kockums has recently launched its new submarine rescue vehicle. The new vehicle is a further development of the Swedish URF submarine rescue system. Already proven in service with the Royal Swedish Navy, the system offers a whole range of operational benefits.

Construction of South African Submarines
Work on the first 209/1400 submarine for the South African Navy has commenced at the waldtswerke-Deutsche Werft AG shipyard in Kiel, Germany. The submarine is part of a contract for three boats to be delivered by the German Submarine Consortium to the South African Navy between 2005 and 2007. The order is worth approximately 700 million Euro and is part of an order package which HDW, TNSW, Ferrostaal and the Government of South Africa signed in Pretoria on 3 December 1999.

Search Is On for WW II Sub Detection Networks
Prior to the outbreak of World War II, the Japanese began construction of several different types of midget submarines. Recognizing the strategic importance of such a weapon for combat use, Japan built hundreds of these "mini subs" ranging in size from just under 80 feet to more than 100 feet. Designed to carry a crew of two to three sailors and armed with two torpedoes, these small subs were originally intended to be transported on ships and deployed in the path of an enemy fleet. However, very quickly the Japanese saw the advantages of using the mini subs for special operations inside enemy harbours where conventional submarines could not go. To enhance their stealth capability, the midget subs were modified to ride atop full size subs and be deployed at sea near the target location. Their compact size and shallow draft allowed them to easily penetrate coastal and wreak severe damage. Mini subs were involved in the surprise attack on Pearl Harbour, Hawaii, and in raids on Sydney, Australia, and Diego Suarez in the Indian Ocean. In 1942/43 the boats were deployed off Guadalcanal where they achieved modest success against U.S. shipping. By the mid 1940s the mini subs were a scourge feared by allied forces.
To defend against these midget subs, the allies began constructing sub detection networks along the entrances to their key harbours. The networks consisted of cables laid down on the harbour floor that could detect the passage of a steel hull vessel over them. In some of the harbours, miles of cable were laid down. Today, more than 50 years after the war, many of the countries that still have these detection networks are having them removed for a variety of reasons. One is that many ports are expanding or having their harbours dredged deeper to accommodate today's larger ships. The cables are an obstacle to dredging operations and a potential hazard for ships anchoring. Another reason for removing the cables is their enormous scrap value. Most of the cables were constructed of copper, but with copper in such short supply during the war years, some were actually made of silver with the intent of reclaiming them after the war. However, very little salvage was ever done. Consortiums of private investors and government officials are now being formed to locate and remove these cables.

World Records, New Technologies at Sixth International Submarine Races.
New world speed records and innovations in propulsion systems were highlights of the successful running of the 6th International Submarine Races, an engineering design competition held at the U.S. Navy's David Taylor Model Basin. The ISR is one of the world's most unusual human-powered vehicle races in which custom-designed, wet (flooded) submarines, powered by crews wearing scuba gear, compete against the clock on an underwater, 100-meter course. Omer 4, a sleek, dolphin-like, one-person submarine from the University of Quebec, established a world speed record of 7.192 knots (more than 8.2 miles per hour) on the final day of racing, beating its previous record set the day before and besting the existing world record of 6.997 knots established in 1997 by Omer 3. A surprisingly second-fastest showing -- particularly against major university competition -- was turned in by an independent sub, Scuba-Doo, designed, built, and crewed by a recent high school graduate from Wheaton, Maryland, and a Navy civilian engineer. The sub achieved 5.088 knots. Virginia Polytechnic University's sleek Phantom 3 sub, using a prop borrowed from Scuba-Doo, posted a speed of 5.017 knots to third place in the one-person, propeller-driven division. The single-person subs were a clear trend in new vehicle design, with reduced weight obviously increasing performance. Speeds have steadily increased since the first race in 1989.


In the closing ceremonies, the $1,000 award for overall performance, sponsored by the IEEE Oceanic Engineering Society, went to Virginia Polytechnic University. Judging was for speed and manoeuvrability in the water as well as high-tech design of composite materials, computerized advanced power-to-propulsion conversion, and the team's response to challenging and changing circumstances during race week. In one of the most unusual team efforts, the U.S. Merchant Marine Academy fielded a submarine named Jonah, looking pretty much like the skeletal remains of a big bluefin tuna. Made of scavenged pieces of scrap aluminium that formed ribs, attached to the spine with screws and duct tape, Jonah is an open sub without a hull. It completed the course, taking nearly 30 minutes to do so, at less than a knot and to the cheers of all the other submariners. This sub, not only designed to look like a fish, also acted like one; it waved its large plastic tail for power as it swam down the 100-meter course.

Investment and Business Opportunity.
We currently have two exciting investment opportunities which you may wish to investigate.

1. Copper salvage. Six shipwrecks with copper cargo have been located off the south west coast of Africa, depth 300ft to 600ft. The research and salvage team have formed an investment syndicate to salvage and sell the cargoes. Minimum investment of US$50,000 per syndicate member.

2. Tourist Submarine Company. This SA based company has negotiated to purchase a ten-man tourist submarine for their Indian Ocean resort. Permits are in place and the location receives 600,000 tourists per annum. Excellent marine life and two shipwrecks on the dive site. Minimum investment of US$100,000 gives an equity stake in this exciting venture.

Newsletter image

 

Civil War Sub Captain's Remains Found.
Marine archaeologists reported that the remains of the captain of the CSS Hunley were found in sediment inside the U.S. Civil War submarine. The discovery brought archaeologists a step closer to solving the mystery of why the vessel sank on the final leg of its historic mission during the Civil War. The steel-hulled Hunley was lost off the South Carolina coast on February 17, 1864, shortly after driving an explosive charge into the Union ship USS Housatonic, sinking that wooden-hulled ship. The Housatonic was part of a Union blockade of Charleston Harbour during the war. The Hunley was discovered last year after a decades-long search by adventure novelist Clive Cussler and his National Underwater Marine Agency. Archaeologists excavating the forward hull of the Hunley, the first submarine to sink an enemy warship in battle, also unearthed a lantern believed used by the crew to signal to Confederate sentries on shore near Charleston that they had completed their mission and were heading back to port. "I think it's safe to say that the hunt for submarine captain Lt. George Dixon is over. He is on board the sub. We have all nine" crewmen, said state Sen. Glenn McConnell, chairman of the Hunley Commission. Although Confederate sentries reported seeing a blue light from the lantern on board the Hunley -- a signal to light bonfires to guide the submarine home -- the vessel never returned to port. It was raised from the seafloor last year, with nine crewmen entombed inside. Dixon, who was well over 6 feet tall, piloted the submarine crouched in a 4-foot-diameter forward hull and looking through the eyepiece.
More at www.hunley.org/

Rusting Nuclear Graveyard.
On the north coast of the desolate Kola Peninsula - three nuclear submarines lie rusting in the icy waters of Snezhnogorsk. These submarines will never again be used; in that sense, their presence is good news. But those with responsibility for looking after them fear that these vessels, and dozens of others like them, could yet cause a catastrophe, which would make the Chernobyl disaster pale into insignificance. Two years ago, when he was U.K. Foreign Secretary, Robin Cook promised £5m to help with the nuclear clean-up in the Murmansk region, as part of a larger programme in the former Soviet Union, where environmental considerations always came bottom of the list. None of the money has been delivered and Russians believe it may be too late.

A Superior Surveillance Platform.
The submarine will continue to play a leading role in tomorrow's IT-oriented defence force, when what is currently known as the RMA doctrine is implemented in practice. The submarine, which can operate unseen, can, in addition to its many other roles, also become the armed forces' primary source of intelligence, able to gather intelligence above and below the surface, for transmission in real time to a command centre. The submarine was a gatherer of intelligence earlier too. But in the new defence scenario, its role as intelligence gatherer will acquire a whole new dimension.

Robots to Replace Submariners
The Astute class vessels, due to enter service with the Royal Navy in 2005, are expected to be the last submarines of their kind before a new generation of unmanned submersible weaponry takes over. Senior officers are examining a range of remote-controlled underwater robots that will revolutionise the force known as the "silent service". Manned submarines are expected to be used for command and transport roles rather than fighting sea battles, according to U.K. Ministry of Defence plans for the future of the Navy in the 21st century.

Submarine Rescue Systems.
The opportunity of suffocating in an icy steel coffin several hundred meters below the ocean's surface is not high on the list of reasons most young men join the Navy. The lingering deaths endured by the survivors of the initial explosions aboard the Russian submarine Kursk are testament to the need for highly-developed undersea rescue systems. With the Russian catastrophe fresh in their minds, both the Americans and Europeans are working hard to come up with a more effective way of retrieving trapped sailors. The logistical and engineering challenges in rescuing personnel from a damaged submarine are colossal. 615 people have lost their lives in submarine accidents since the end of World War 2.

SUBSEA, SUBMERSIBLE, ROV ELECTRIC MOTORS.

Silvercrest/SME can design and build Motor-pump sets, ROV HPU, SUBSEA, SUBMERSIBLE, ROV motors to suit any requirement due our totally flexible design capabilities:



      Flexible External Dimensions to suit all applications.

       Dimensions to allow drop in replacement for existing units.

       Anodised aluminium, or, 316 stainless steel.

       Power drive to load using an output shaft with a standard coupling, or, close coupled, etc.

       Single drive shaft, or, a drive shaft at both ends, (double shaft extension).

 

SME can design and build a motor with a completely new lamination to meet special design requirements, if necessary.

 

SME design their motors so they do not run hot. Typical motors can run on deck for at least 10 minutes on full load, with no cooling, without overheating. The motors are designed to be compact in size and suitable for heavy duty applications, like trenching.

If weight is important SME can design the motor for minimum weight by utilising an aluminium construction and a hollow motor shaft, etc., while still ensuring the motor is generously rated for full load operation. If the motor is going to drive a hydraulic pump we recommend a close coupled arrangement to save the weight of the coupling and the coupling housing.

SME can design and build motors for all voltages from 24 Volts to 4160 Volts with 50Hz or 60Hz frequencies, or for VVVF requirements. High Voltage motors can have random stator windings, or formed coils, depending on space and weight constraints. The winding wire for the High Voltage motors is double insulated and passes a twisted wire test at 16,000 volts and is rated up to 155 Deg.C. All windings are designed to keep 'turn to turn' voltage to a minimum. All winding materials and cables, etc. are specially selected to be suitable for use in hydraulic oil.



In general the SME SUBSEA motors have low loss lamination steel (3 Watts/kg), which allows for higher flux densities, and less heat, with less material and weight.

All motors are oil filled and we recommend hydraulic oils for good lubrication characteristics in preference to electrical oil which has better di-electric capabilities, but worse lubrication capabilities.

If motors are going to drive a water pump SME can design the motor to take the thrust load from the pump, and keep the sea water out of the motor with a single or double mechanical seal arrangement.

Thruster motors can be designed and built for voltage/speed control, which is a relatively simple speed control system, and they can also be built with a thrust bearing incorporated to take the thrust load from the impeller.

To ensure the integrity of the motor housing SME does not use castings. All components are machined from solid or from extrusions. The external aluminium components are typically 6061 T6 marine grade aluminium and hard anodised to a military specification.

All ball bearings are from well known brands such as SKF, FAG, or NSK. Oil seals are high temperature and typically made from Viton. Mechanical seals are typically Burgmann.

All hardware used on SME SUBSEA motors is 316SS.

All fixing holes are blind except the "oil in" and "oil out" fittings and the stator pack fixing bolt, if applicable.

The preferred power cable entry system for SME motors is to use an "oily tube" connected to an adaptor which is part of an oil tight rubber gland which is fixed to the stator frame. SME do not recommend bringing the power cables through the endshields of the motor because this creates additional complications when the motors are stripped down during service, because the endshields cannot be readily removed from the stator. Subsea connectors can be offered as an alternative to the Oily Tube if requested.

 



SME strongly recommend that the motors are supplied with PT100s fitted in the windings and also in the bearings and that the internal motor temperatures are monitored and set up to alarm if the temperatures rise above the "norm". SME can also offer additional protection with a water detector, etc. The auxiliary connections for PT100s, etc. can be made through standard high pressure, water tight, plug and sockets as supplied by "Subconn", "Impulse", and "Burton". These are also fitted to a connection block on the stator, not on the endshield.

All finished motors are pressure tested to ensure they are "oil tight" and suitable for compensated operation down to 4000 metres.

All motors are rated for continuous operation and all prototype motors are full load performance tested at rated voltage and rated frequency to confirm their performance characteristics. All motors can be issued with a "Type Test Certificate" or even full load tested at additional cost, if required.

 



SME can also offer to arrange for hydraulic pumps to be set up and tested on the motors at rated voltage and frequency.

SME can offer to supply Hydraulic Power Units, ROV HPU, complete with the addition of a customer specified Hydraulic Pump. Also motor-pump sets for both hydraulic and water jetting applications.

SME is a fully quality assured company to ISO 9001.2000 for "Design, development, manufacture, and testing of submersible electric motors and electric motors for remotely operated vehicles".

SME Subsea motors can be designed and built for all subsea applications, such as ROVs, Trenchers, Ploughs, Submarines, Dredges, etc.

All makes of subsea motor can be serviced, repaired and tested by SME. In some cases the original motors can be significantly upgraded. If you are having problems with your existing subsea motors please contact SME - we are keen to help and we are very price competitive.

At SME we are continually working on improving the performance of our products and for this reason we reserve the right to make changes without notice to any of the data in this brochure.

 

SUBSEA/ROV MOTORS:

 

 

 

Silvercrest/SME build and repair ROV submersible motors for all subsea applications. We design, manufacture, and supply, submersible electric motors for all SUBSEA and ROV, SUBSEA equipment, also for any special purpose submersible electric motor requirements.

Silvercrest/SME offer SUBSEA electric generators for Tidal Power Generation.

We repair and rewind large high voltage (500kW, 6600V) submersible electric motors.

High Temperature Submersibles in 6-inch to 20inch frames suitable for operation in ambient temperatures of 75 Deg. C.

Supply High Voltage water filled submersible motors (3300V, 4160V and 6600V)

Supply Upgraded Temperature Monitoring units, with new improved user-friendly parameter settings.

Manufacture Subsea and ROV motors suitable for depths of 4000M.

Manufacture Subsea Electric Generators for Tidal Generation.

Induction Generators or slow speed Permanent Magnet Synchronous Generators unto 500kW.

 

SUBMERSIBLE MOTORS and PUMPS.


We offer a wide range of electric submersible motors with matched hydraulic and water pumps.

We have our own submersible motors that are drop-in replacements for most of the popular models in use today. 

We can supply ROV HPU submersible motors from 30kW to 250kW, trenching HPU submersible motors from 100kW to 500kW, trenching jetting pumps, plough HPU submersible motors, plough jetting pump sets, turbine and centrifugal water pumps, and hydraulic pumps (Rexroth A7 and A10 series, Sauer 90 series and Kawasaki KV3 series).

   
We offer AC thrusters as direct replacements to existing DC thrusters from 1kW to 50kW in size.

Silvercrest/SME design and build specialized Submersible ROV motors for use SUBSEA in the offshore industry. These motors are usually made to order and vary from 1kW to 600kW, from 400 to 6600 Volts, 50 or 60 Hz, 2 Pole, 4 Pole, 6 Pole and 8 Pole.

We can repair, rewind, rebuild, and redesign any ROV submersible electric motor.

Silvercrest/SME design and manufacture specialized motors for use on SUBSEA equipment used in the offshore industry.

There are two common methods of construction - stainless steel construction or Marine Grade aluminium that is Black anodized to resist corrosion. We can also offer motors manufactured from Duplex and Super Duplex stainless steel.

Our subsea motors are usually oil filled and pressure compensated. The common operating voltages are 400 volts, 3300 volts, 4160 volts and 6600 volts (even for small 5kW motors).

Our motors operate at depths down to 4000 metres, or deeper by special request.

 

Silvercrest/SME manufacture complete submersible electric motors, motor-pump sets, and ROV HPU.

We offer submersible motor rewinding / rebuilding  /electrical conversion / and original construction modification.

SME can repair and completely rebuild most submersible electric motors (for example: Alstra, Aturia, Bamsa, B. J., Elmaksan, Exodyne/EEMI, G.E., Hayward Tyler, Hitachi, Mercury, Oddesse, Pleuger, Saer, S.M.E., Subteck, Sumo, Sun Star, U.S.).

 

Company Profile.

Silvercrest/SME manufactures new Submersible and ROV Motors. SME also services and repairs all brands of Submersible and ROV Motors. Including Hitachi, Pleuger, Grundfos, Mercury, Byron Jackson, Haywood Tyler, and Franklin. Our business is to manufacture, supply and service Submersible Electric Motors, Subsea and ROV motors. With a compliment of 30 service orientated staff members, we have the ability to service and technically support all makes and models of Submersible Electric Motors at our Maddington, Perth facility. Our sales department, with a total of 75 years experience in the Submersible and Electric motor business, are happy to assist with any enquiries on the purchase of Submersible Motors, HPU, and motor-pump sets, ranging from 3.7kw to 1500kw, in various voltages and frequencies. 

In our 1200 ft facility, purpose built for manufacture and service of Submersible Electric Motors we offer the following in-house services:

Full Machine Shop capacity.

Voltage Testing through 10,000 volts.

ISO9001 quality assured workshop.

An Overhead crane through 10 ton capacity.

A state of the art Water Pressure Test facility with full international certification.

High POT and Surge Testing.

Full Load / Dyno testing to 250kw of all types of Electric Motors with detailed test reports.

Balancing Facility available, to 250 kg.

SME are a fully integrated manufacturing facility and in addition to our Standard range of submersible motors we also offer the following:

Special Motors for specialist applications.

4 Pole, 6 Pole and 8 Pole motors.

All Stainless Steel or more exotic material construction. 

Special Thrust ratings.

Special Lead manufacturing. 

NEMA and other couplings in a variety of materials.

Replacement parts of obsolete products. 

Technical assistance during Commissioning.

Trouble Shooting.

Repairs to all makes (Oil and Water filled).

Rewinds of all Voltages (200 volt to 6.6kv) with 1 Year Warranty on all rewinds.

Dynamic testing.

Non-Destructive testing.

Welding and Machining.

On site or Factory Based Cable Splicing.

Retro Fitting of Condition Monitoring Equipment.

Modification of existing motors to upgrade them higher specifications.

Refurbishment of ROV motors using more technically advanced materials.

 

Please contact us direct for confirmation of any drawing dimensions or performance data.

To Contact us:

Silvercrest/SME.

Tel: (+44) 1285.760620

Email: sales@SilvercrestSubmarines.com

 

 

Site Map
©Silvercrest Submarines