Fuelling-at-sea systemsThe choice for today’s modern navies

Advantages of electric driveAC motors – simplicity with good controllability.Low inertia winch design – rapid reaction times.Low ship integration costs – standard cabling.Improved availability – operable after long periods of inactivity.Enhanced reliability – fewer moving parts.Reduced through life costs - compared to hydraulic systems.

...Flexible...Modular...All-electric

Proven experienceFor over 50 years Rolls-Royce has supplied Britain’s Royal Fleet Auxiliary and other international navies with Replenishment-at-sea for stores (RAS(S)) and Fuelling-at-sea (RAS(L)) systems capable of refuelling and replenishing large and small vessels. The equipment, formerly part of the Clarke Chapman Marine product portfolio has been fitted to fleet tankers and stores ships to transfer liquids and solids at sea to a wide variety of ships in NATO navies, and has been tried and proven worldwide under all operating conditions with high reliability.

Proven design philosophyMaximum use is made of the latest commercial-off-the-shelf (COTS) equipment and modular design to maximise performance and minimise cost. Each system is custom engineered to exactly match each customer’s requirement and to integrate with the vessel - we understand that individual navies replenishment needs are unique.

Safe operationRolls-Royce is totally dedicated to designing and supplying systems that are the world’s most advanced by integrating the best in technology. We are the only manufacturer to offer automated all-electric systems, suitable for mounting on open decks subject to green seas. This enables us to provide safer, more reliable and flexible refuelling systems, matched to the trend towards the all-electric ship and are cost effective in terms of initial and through life costs.

Rolls-Royce systems conform to the requirements of:

ATP-16 (D)

Lloyds Naval Rules

Def-Stan 07-279 (NES 114)

Heavy Jackstay winchAt the heart of the system is the single barrel heavy jackstay winch, powered by two high torque AC induction motors with variable speed inverter drives and active front end control. This drive arrangement ensures minimal harmonics and programmable power factor, and demonstrates high efficiency by regenerating power to the ships power system. It provides the 28mm main wire rope support between the supply and receiving ship that carries the hose saddles that support the refuelling hoses. Once the jackstay tension is set, the system is able to automatically respond to extremes of vessel movement and maintain it. Extra safety is provided by the use of integrated slipping clutches, that limit the maximum load applied to the supporting structure of the receiving vessel.

Fuelling-at-sea systems

Mast

Operators Console

Saddle winches

Heavy Jackstay winch

Hoses

All winches are located in a central area, the jackstay winches are in the foreground.

MastThe mast is designed by Rolls-Royce (with design approval by an independent regulator) to match the supply ship and the range of vessels it will refuel. It will normally be fabricated to the Rolls-Royce design and integrated within the ship by the shipbuilder. The FAS sheave and saddle wire sheave blocks are part of the Rolls-Royce supply.

HosesDual and single fuel probe options can be supplied depending on customer requirements, together with the probe reception point on the receiving ship and a small electric capstan to facilitate rope handling during RAS(L) operations. Hose diameters including 7 inch (177mm), 6 inch (153mm), 4 inch (100mm) and 2.5 inch (64mm) can be accommodated with standard NATO connections for fuel and water. Rolls-Royce supply everything from the hose deck connection on the supply ship.

A wide range of hose diameters and configurations can be supplied.Refuelling masts are specifically designed to suit the naval requirements.

Rolls-Royce systems are designed to operate at ship distances from 24 to 55m, (maximum 61m) and at ship speeds between 10 and 16 knots.

Saddle winchThe three saddle winches are used to adjust the position of the hose saddles. The fourth is fixed from the mast. Saddle winches are driven by 3 speed DOL 3 phase AC induction motors through totally enclosed spur gearboxes. All deck mounted electrical equipment and enclosures have an ingress protection rating of IP56.

Operators ConsoleNormally positioned well above the deck, the user friendly operators console houses the joysticks, control systems and diagnostics for the system. The console has an integral seat for a single operator.

Winch mounting optionsFor installation simplicity and ease of maintenance, winch modules are usually deck mounted behind the mast. Where deck space is limited and to allow the naval architect flexibility in vessel design, the jackstay winch can be mounted below deck underneath the mast and the saddle winches nearby. Relocation is a simple matter of rerouting power cables and maintaining acceptable cable/sheave geometry.

Station KeepingThe system is designed to operate satisfactorily under the following operational range:

Horizontal working:30o forward to 30o aftVertical working:15o above to 30o below

Sea Condition and Ship MotionsRAS(L) equipment is designed for satisfactory operation up to Sea State 7 at the optimum heading conditions and ship motion as follows:

Heel operational: +/- 15° Heel survival: +/- 22.5° Roll operational: +/- 15° Roll survival: +/- 40°

A spacious operators cabin overlooks each mast. Excellent ingress protection ensures a long service life for all winches.

Liquids and solids handling is our business

Other refuelling systemsDependant on customer requirements, Rolls-Royce can supply alternative methods of fuel transfer as new equipment or for retrofit:

Astern refuellingThe astern refuelling rig is installed in the stern quarters of the supply ship. Using this system ships can be refuelled, even in heavy seas at speeds up to 15 knots.

Large Derrick rigIn service with many navies, provides additional flexibility to refuel smaller ships.

Solids handlingRolls-Royce is also at the forefront of solids handling systems:

Dual Purpose rigCapable of independent operation with either solids or liquids transfer from the same station. A single control console controls refuelling and operations to transfer loads up to 2 tonnes. Work is now underway to develop a system capable of transferring up to 6 tonne loads.

Light Jackstay rigA simple rapidly deployed manual system for the transfer of loads up to 250kg.

Keeping naval fleets supplied with fuel, food and stores

Astern rig.

Large Derrick rig.

Dual Purpose rig.

Solids handling.

© Rolls-Royce plc 2008

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which it is supplied without the express written consent of Rolls-Royce plc.

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to Rolls-Royce plc, no warranty or representation is given concerning such information,

which must not be taken as establishing any contractual or other commitment binding

upon Rolls-Royce plc or any of its subsidiary or associated companies.

Rolls-Royce Power Engineering plcScotswood RoadNewcastle Upon TyneNE15 6LLUnited KingdomTel: +44 (0)191 256 2800Fax: +44 (0) 191 256 2801Email: marineinfo@rolls-royce.com

Ref: MMS/54/08/1Printed in England

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Through-life supportAlthough maintenance requirements have been minimised on the latest handling systems, maintenance programmes are an integral part of the dedicated Rolls-Royce service. Everything from maintenance manuals and record keeping to on-board maintenance programmes can be tailored to individual requirements. With offices in 34 countries a 'global but local' approach means you are never far away from OEM service and genuine spares provision should it be needed.Customers can also select from additional services that range from ILS analysis, ARM analysis to safety and FMECA studies. All are designed to match individual customer requirements, and ensure system reliability and safe, continuous operation.

TrainingComprehensive training courses are provided for all RAS/FAS system operators and maintenance engineers, either at our UK based or on-board ship.