1

Steering and stabilisationSet a course for optimum reliability and performance

Marine

move

Systems that keep vessels safely on course and comfortable in all conditions

Since pioneering electro-hydraulic steering gear nearly a century ago, we continue to develop new systems for vessels ranging from large tankers to super yachts. Customers benefit from the world leading hydrodynamics expertise and the design resources of the Rolls-Royce rudder, steering gear, stabilisation and propulsion specialists, who cooperate to address and handle challenging projects and deliver system solutions. This minimises technical risk as well as maximising vessel performance.

movemake the right

Contents:Steering gear page 4

Promas page 10

Rudders page 12

Stabilisers page 18

Customer support page 22

4

Steering gear

Rotary vane steering gear for smaller vessels

Typical applications: • Work boats• Fishing vessels• Offshore supply vessels• Chemical/product tankers• LPG tankers• Smaller naval & coastguard vessels and auxiliaries• Smaller cargo vessels• Smaller passenger vessels• Yachts

The SR series is designed with integrated frequency controlled pumps.

Rolls-Royce supplies a complete range of steering gear, suitable for all types and sizes of ships. The products are designed as complete steering systems with the actuator, power pack, steering control, alarm and rudder angle indicating system in mind, and can therefore be delivered with complete control systems, including control panels with start/stop, non-follow-up and follow-up, mode

selection, alarm panels and rudder angle indicators or just a portion of this. The system is also prepared for interface to VDR, ships main alarm system, autopilot, joystick and DP when requested. Due to a wide range of demands, great care has been taken from material selection through construction, in order to meet the strictest quality demands.

General description

Key product benefits• Compact• Low weight• Easy installation• Easy maintenance• High positioning accuracy• No external moving parts• Up to 70º rudder angle

• Available with steering control and rudder angle indicators as one complete system

• Built-in rudder carrier• Polymer sealings internally

for optimal tightness• Simple and robust

components

5

The Rolls-Royce series of rotary vane steering gears has been manufactured for more than 60 years, with more than 30 000 machines delivered. The principle of a rotary vane gives more flexibility when choosing the design and types of rudder, thanks to the rudder angles of up to 2 x 70º.

The rotary vane principle also ensures a constant torque throughout the steering sequence, providing the gear with maximum power output at all rudder angles. This makes navigation through narrow straits or busy shipping channels safer, because maximum torque and steering time can always be achieved, resulting in improved manoeuvrability and improved control. Unique technical solutions ensure very low noise and vibration levels. The compact and simple design reduces weight and the number of components, which in turn secures fast and easy installation of the steering gear. The actuators are mounted directly on the rudder stock, without requiring the use of keys or keyways, facilitating easier assembly and dismantling of the rudder stock. The rudder torque is transmitted by hydraulic coupling or by hydraulic sleeve coupling/expansion rings (for the

smaller machines). The naval series of rotary vane steering gear is designed to meet the highest standards for noise, shock and vibration. For naval applications without Milspec requirements the SR & RV ranges offer reliability and maintainability at low cost for a wide range of applications.

The SR series of steering gearThe SR series is suitable for small to medium-sized vessels. The steering gear is designed with integrated frequency controlled pumps. The pump utilises a reversible hydraulic pump motor together with a frequency converter to reduce the power consumption and to change the speed and the direction of the pump. The design gives smooth starting and stopping of the steering gear, and enables a precise analogue control system. The pump units are mounted directly on the rudder actuator, which lessens the need for piping work on board a vessel. Full frequency control means the pumps and motors are only running when a steering command is given, this reduces the amount of heat generated and leads to a cleaner hydraulic system, improving the lifetime of components.

Std. rudder Max. Max. Max. Weight Max. Max. stock working working mechanical approx. radial axialTYPE dia. (mm) pressure (bar) torque (kNm) rudder angle (deg) (kg) load (kN) load (kN)

SR562L 120 54 16 2 x 61 400 175 104SR562 160 133 40 2 x 61 400 175 104SR622 200 125 70 2 x 71,5 620 400 200SR642 240 125 110 2 x 72 920 600 250SR662 280 125 170 2 x 72 1800 700 354SR722 300 125 275 2 x 72 2750 855 370SR723 320 125 412 2 x 44 2800 855 370SR742 340 125 433 2 x 72 3700 1400 480SR743 360 125 650 2 x 44 3750 1400 480

1 2 3 1. Unique technical solutions minimise noise and vibration levels.

2. The pump units are mounted directly on the rudder actuator.

3. Red indicates pressurised oil. Green indicates return oil.

*All rights reserved. All data subject to change without prior notice.

6

Steering gear

Rotary vane steering gear for larger vessels

The RV series steering gearThe Rolls-Royce RV series of steering gear has a proven service record on all types of vessels. Today’s range is suitable for medium-sized to large ships, including large container vessels and VLCCs. The weight is typically 50-60% of a RAM-type steering gear, with a much smaller space requirement. Furthermore, the design’s dual, submerged pump power packs make installation even easier, as no expansion tank is needed. Installation is also simplified because of the integrated storage tank and rudder carrier. The modulated flow control modulates the oil flow to the actuator in order to give a soft start and low rudder speed for small rudder movements. The oil flow gradually increases to full flow, allowing

full turning speed on the rudder. The system ensures a very precise rudder positioning at small rudder angles during course keeping, while the full flow ensures full manoeuvring capability when needed.

The IRV series steering gearIMO regulations require compliance with the principle of single failure criteria for large tankers over 100,000 dwt. This require-ment is met by the IRV series, which incorporates automatic isolation and separation of the actuator’s dual hydraulic system. The actuator is equipped with a double sealing system, completely separating the actuator in two individual pressure systems.

The RV and IRV series are suitable for medium-sized to large vessels.

Key product benefits• Modulated flow control• Pressure activated sealing system• Safe, reliable low pressure technology• Compact design with high torque and low weight• Easy installation and service• Robust design

• Chemical tankers• Product tankers• Crude oil tankers• LPG tankers• LNG tankers• Container vessels

• Bulkers• Ro-Ro & Ro-pax vessels• Cruise vessels• Larger naval vessels and auxiliaries

Typical applications:

7

Max. Max. Max. Friction loss Max. mech. Weight Max. Max. rudder stock working working in rudder rudder approx. radial axialTYPE dia. (mm) pressure (bar) torque (kNm) carrier (kNm) angle (deg) kg load (kN) load (kN)

RV450-2 360 80 430 49 2 x 71,5 3200 1400 500RV550-2 370 80 568 53 2 x 71,5 3500 1400 500RV650-3 390 80 644 56 2 x 46,5 3200 1400 500RV700-2 410 80 677 71 2 x 71,5 5000 1800 700RV850-3 420 80 853 61 2 x 46,5 3700 1400 500RV850-4 390 170 845 70 2 x 36,5 3650 500 450RV900-2 450 80 874 75 2 x 71,5 6000 1800 700RV1050-3 450 80 1015 80 2 x 46,5 5000 1800 700RV1050-4 420 170 1065 87 2 x 36,5 4410 600 650RV1100-2 510 80 1094 137 2 x 71,5 8000 3000 1250RV1350-3 495 80 1312 87 2 x 46,5 6000 1800 700RV1400-2 500 80 1412 88 2 x 71,5 8100 1800 700RV1450-4 470 170 1437 108 2 x 36,5 5690 600 750RV1650-3 550 80 1642 151 2 x 46,5 8000 3000 1250RV1700-2 560 80 1709 150 2 x 71,5 11000 3000 1250RV1850-4 510 170 1860 132 2 x 36,5 7480 700 900RV2050-2* 580 80 2029 157 2 x 71,5 12000 3000 1250RV2600-3 620 80 2563 171 2 x 46,5 11500 3000 1250RV2600-4* 600 170 2586 232 2 x 36,5 11000 700 1050RV2700-2* 650 80 2666 171 2 x 71,5 15000 3000 1250RV3050-2* 700 80 3043 236 2 x 71,5 20000 3000 1800RV3050-3 660 80 3043 181 2 x 46,5 12000 3000 1250RV3900-4 650 170 3882 314 2 x 36,5 15000 900 1200RV4000-3 700 80 4000 201 2 x 46,5 15000 3000 1250RV4200-2* 730 80 4200 273 2 x 71,5 24000 3000 1800RV5500-4* 750 170 5498 498 2 x 36,5 21500 1250 1750RV6550-4* 800 170 6565 609 2 x 36,5 24500 1250 2000

*Available in IMO execution. All rights reserved. All data subject to change without prior notice.

1 2 3 1. The 4-vane steering gear and powerpack.

2. Modulated flow control.

3. Access to all bearings and sealings.

4-vane steering gearThis is a range of extremely compact rotary vane steering gear, which is suitable for medium to large vessels including tankers over 100,000 dwt. The 4-vane steering gear is a further development of the well proven range of steering gear with two and three vanes. The key advantages of this design are its compact size because of the four vanes and its light weight as well. The 4-vane steering gear is available as the standard RV model as well as the IRV model, which satisfies all statutory requirements for tankers over 100,000 dwt. This range also incorporates the proven and unique modulated flow control valve.

Frequency-controlled solutionsReduced power consumptionFor our RV and IRV range, a system with frequency controllers for optimising speed of the electric motors enables us to take control over the power consumption of the steering gear. The design gives smooth starts and stops of the steering gear and enables a precise

steering. During idling of the pump, the frequency is reduced to a minimum. The starting current is also reduced to a minimum with this system.

Reduced emergency generator sizeThe RV and IRV range also have the possibility to have one frequency controller connected to the emergency stand-by pump, in order to reduce the power consumption and the starting current on the emergency generator. This solution will reduce the power consumption and starting current to a minimum during an emergency operation.

In-service solutionOn the larger 4-vane steering gear an integrated lifting device has been included. This device allows access to the split seals and bearings on the top and bottom covers of the actuator without the need to disconnect the rudderstock connection. This way, a full overhaul of the steering gear can be performed without having to disconnect the rudder.

8

Typical applications: • Corvettes• Frigates• Destroyers• Aircraft carriers

The Rolls-Royce naval type of steering gear systems with digital controls and autopilot have been selected by a large number of the world's navies including the USA, Canada, Malaysia, India, Australia and the British Royal Navy. The range has been developed to integrate seamlessly with the vast number of applications deployed in naval fleets.

Rotary vane steering gearThe compact size of the rotary vane steering gear facilitates ease of fitting to single or multiple-rudder instal lations. The standard working angle of a rotary vane unit is 37º to one side, although gears can be supplied to give maximum working angles of 70º and 90º to one side.

The 17 model range is available for torques from 20-2,510 kNM.

The rotary vane steering gear is specifically designed to conform with international naval standards for noise, shock and vibration.

Naval rotary vane steering gear

The range has been developed to suit many different types of naval vessels.

Steering gear

Naval type of rotary vane steering gear.

9

The actuator gear is a cost-effective and reliable solution particularly where full shock standards are not required. These gears are bespoke designed to customer requirements and offer high perfor mance at low cost.

Furthermore, use of the actuator type means fewer interface surfaces on board because the actuator's anchor brackets can be welded directly on to the hull cartridge. This means that actuator steering gear is less tolerance-critical for installation.

If problems occur with the hydraulic driving mechanism, replacing an actuator is easier than a rotary vane or a ram type of steering gear.

The hydraulic power units can be configured to meet specific customer requirements. It can also be delivered as a dual or single power units.

The 7 model range is available for torques from 50-500 kNm.

Actuator steering gear has been supplied for the Royal Navy Type 45 destroyers.

Typical applications: • Corvettes• Frigates• Destroyers

Actuator type of steering gearSteering gear

The hydraulic power units are inherently safe and reliably. Options are variable or fixed displacement pumps.

10

Key product benefits• Reduced fuel consumption • Reduced environmental impact

Promas integrates the propeller and the rudder into a single system to optimise hydrodynamic efficiency. A special hubcap is fitted to the propeller which streamlines the flow onto a bulb that is added to the rudder, effectively reducing flow separation immediately after the propeller. The result is an increase in propeller thrust as previously wasted energy is recovered from the flow. The addition of the bulb on the rudder also streamlines the flow aft of the rudder, further reducing drag.

A twisted rudder provides further improvements in efficiency and manoeuvrability.

Improved propulsive efficiency

In general the efficiency gain is between 3-8% for single screw vessels and 2-6% for twin screw vessels with FP or CP propellers. Virtually any vessel will benefit. The position of the rudder in the slipstream and the skeg design can deliver further improvements. Designs are extensively tested and verified in the Rolls-Royce Hydrodynamic Research Centre.

Comparison tests with conventional propeller/rudder systems are shown in the graph below.

Integrated propulsion and manoeuvring system

Promas

• Ferries• Cruise ships• Fishing vessels• Car carriers

• Cargo carriers• Bulkers• Tankers• Platform supply vessels

The best in propulsion and manoeuvring

Typical applications:

• Short payback period • Increased propulsive efficiency • Simple installation

11

Integrated propulsion and manoeuvring system

Promas with nozzle

Promas + nozzle For efficient high bollard pull applications

A natural evolution of the successful Promas, this system unites a new type of nozzle with an optimised propeller, hubcap, rudder bulb and a special rudder profile developed to provide very high steering forces yet minimise drag. It meets the requirements for large pulling power at low speed with a high free-running speed in transit. Components are designed to work together in a ducted system, maximising efficiency and minimising disturbances in the water flow both through and around the nozzle. Developed through CFD testing and analysis, the nozzle is a major advance on the profile used in conventional nozzle propeller installations. In a typical anchorhandler propulsion system it will reduce fuel

consumption in transit by 15% or more, and improve bollard pull by around 5%. Depending on the exact requirements the rudder may be either a one-piece design or a medium flap type.

Promas LiteImproving propulsive efficiency is the key in reducing fuel burn, and this simple modification allows vessels already in service to benefit from Promas efficiency gains. There are three areas of modification – welding a prefabricated bulb to the existing rudder, bolting a hubcap to the propeller, and fitting a new propeller or reblading the original. Installation is normally 7-10 days and the payback time can be under 2 years.

Typical applications: • Anchorhandling offshore vessels• Seismic survey• Tugs• Fishing vessels• Multipurpose platform supply vessels• Offshore construction vessels

1

2 3

1. The leading edge of the twisted rudder is adapted according to the inflow angle from the propeller slipstream.

2. Rudders of a special profile have been developed to provide high steering side forces with minimum drag, either of a one piece or medium flap-type design.

3. The Promas Lite modification allows vessels already in service to benefit from Promas efficiency gains.

12

Rudders

Classic rudders

Classic rudderThe classic rudder series, with no rudder angle limitation and optimised profile designs, provides an economical way of improving the manoeuvring capabilities of most vessels. To meet each vessels requirements, we offer tailored solutions that can be integrated as a package together with Rolls-Royce steering gear or as an integral part of the PROMAS – Propulsion manoeuvring system. Furthermore, with few moving parts it is also easy to install and maintain. This ensures your vessel will have optimal reliability, excellent manoeuvrability and low life cycle costs.

For transit speeds the directional stability of the vessel must be considered, we have developed and use advanced computer programs to simulate different manoeuvres such as the IMO criteria (zig-zag test), making it possible to evaluate different rudder sizes and types in order to optimise the rudder design for each vessel.

Type CBfor lower speedsA bulbous profile and large vane end platesimprove low speed manoeuvrability. It sharesthe same profile as the FB flap rudder andis typically used for offshore supply, cargo,fishing and seismic vessels.

Options:• Heel connection module• Wire guard

13

Type CMfor medium speedsThe profile is optimised to provide goodmanoeuvrability with propulsive efficiency,with a tapered or rectangular blade,meeting the rudder needs of passengerand cargo vessels. Ideal for use on passenger vessels and cargo vessels.

Options:• Twisted leading edge• Wire guard

2"Rudder Periodic Table" in principle

FB rudderFlap rudder with bulbous profile

CB rudderClassic rudder with

bulbous profileCM rudder

Classic rudder with medium profile

CS rudderClassic rudder with

slim profile

FM rudderFlap rudder with medium profile FS rudder

Flap rudder with slim profile

Estimated equal rudder area Increased propulsive efficiency

Incr

ease

d m

anoe

uvra

bilit

y

1

1. Rudder performance comparison, based on same area and aspect rudders in similar conditions.

2. Rudder designs are optimised in accordance with propeller and hull characteristics, in order to meet owner requirements for efficiency and manoeuvrability.

14

Rudders

Classic rudders

Type CSfor higher speedsThe slim profile increases overall propulsive efficiency and reduces cavitation risk. The blade is tapered with rounded corners. It has the same profile as the FS flap rudder.Ideal for use on passenger vessels, cruise ships, cargo carriers and high speed vessels.

Options:• Twisted leading edge• Wire guard

Key product benefits Available options:• Easy installation• Easy maintenance• Custom-built to fit hull• Optimal performance• Suits all steering gear

• Steering gear foundation• In-water-survey• Automatic lubrication system• Cathodic corrosion protection • Custom rudder trunk • Heel connection module

• Hydraulic nut for steering gear• Water lubricated bearing • Ice class• Special bearings • Stainless steel liners• Wire guard

15

Rudders

Flap rudders

Flap rudders Our flap rudder series provides both excellent low speed manoeuvring performance and high propulsive efficiency. A Flap rudder produces more sideforce than a classic rudder of equivalent size. Depending on shipowner requirements, a flap rudder may be used to reduce the overall area of a rudder whilst maintaining equal lift forces or may be used whenever there is a requirement for high manoeuvrability. Therefore a good understanding of Shipowner requirements is vital when designing a rudder.

As a supplier of both rudders and propellers, Rolls-Royce uses experience in cavitation prediction and hydrodynamics, generated from in-house model testing and in collaboration with leading European test centres, in order to optimise and document the manoeuvring performance of our rudders at low speeds. The r udders can also be optimised for higher speeds and the leading edge of the rudder can be twisted to improve the efficiency and cavitation characteristics of the rudder.

Type FBfor low to medium speedsThis rudder has a bulbous profile formaximum manoeuvring performance. Thedesign also has large upper and lower vaneplates. It is ideal for use on workboats, fishingvessels, offshore vessels, small tankers, cargovessels, ferries and other coastal vessels.

Options:• Heel connection module• Wire guard

16

Rudders

Flap rudders

1 2

Type FMfor medium speedsDesigned with a moderate profilefor enhanced manoeuvrability andpropulsive efficiency. Ideal for use on passenger vessels and cargo vessels.

Options:• Twisted leading edge• Wire guard

1. The leading edge of the medium and slim rudders can be twisted to improve efficiency and cavitation performance and to improve the manoeuvring performance of the rudder at low-speeds.

2. Trunk type: extended, with steering gear foundation or standard. Designed for minimum installation time and cost. The extended trunk is available with or without fairwater/shell plating.

17

Type FSfor medium to high speedsA slim profile that is purpose-designed to suitthe vessel. The rudder is built around a castcone module and has a robust link mechanismand hinge system to withstand the high forces.It is also an ideal all-round flap rudder suitablefor a wide range of vessel types.

Options:• Twisted leading edge• Wire guard

Key product benefits• Easy installation• Easy maintenance• Custom-built to fit hull• Optimal performance• Suits all steering gear

Available options:• Steering gear foundation• In-water-survey• Automatic lubrication system• Cathodic corrosion protection • Custom rudder trunk • Heel connection module • Hydraulic nut for steering gear

• Water lubricated bearing • Ice class• Special bearings • Stainless steel liners• Wire guard

18

Retractable stabilisersRetractable fin stabiliser systems play an important role in improving the all-important on board experience for passengers and crew. They are supplied in pairs, but can be used singly if required. When not in use they retract into recesses in the hull, flush with the vessel’s side. Vessel speed and the angle of the fins in the water determines the degree of lift generated and the subsequent level of roll reduction. The control system senses ship speed and the degree of ship movement and alters the fin angle to provide the necessary lift to return the vessel to an even keel. Compared to an unstabilised vessel, these systems provide 80-90% roll reduction.

Neptune II retractable-fin stabilisersThe one-piece fin is built of fabricated materials, with a modified NACA (North American Committee on Aeronautics) section to maximise lift properties and minimise drag, with a similar effect as flapped fins.Features include an innovative tilt ram attribute, which facilitates cylinder and seal maintenance without dry- docking, simplified crux assembly, improved hydraulic and lubrication systems, lower weight and a new fin extension-locking mechanism for improved safety. Neptune II offers optimal vessel performance with low ownership costs.

Retractable-fin stabilisersStabilisers

The Neptune II retractable-fin stabiliser provides optimal vessel performance at low ownership costs.

Typical applications: • Cruise ships• Ferries• Container vessels

Medium to large naval vessels: • Aircraft carriers• Amphibious vessels• Auxiliary platforms

Key product benefits• Enhanced stabiliser performance due to one-piece, high-lift fin • Ease of integration with ship’s alarm and monitoring system• Small hull aperture• Modular construction • Simplified main seal replacement • Load sensing hydraulics • Latest generation controls

Technical data, Neptune retractable-fin stabilisers

200 5.45 – 7.48 44 – 52300 7.00 – 9.62 67.5 – 78.1400 9.42 – 12.95 90.0 – 102.5500 12.5 – 17.19 127 – 142600 16.24 – 22.33 190 – 209All data subject to change without prior notice.

Neptune Fin area Total weight model (m2) (tonnes)

19

Aquarius retractable-fin stabilisersThe Aquarius folding-fin stabiliser range gives high- performance roll damping, with a compact, lightweight design and state-of-the-art controls. The fin operating mechanism is especially configured to meet the requirements of smaller vessels, with minimum size, weight and number of parts. The stabiliser comes supplied complete with a fin-box and any necessary local stiffening, ready for the shipyard to weld into place.

Aquarius can boast terrific stabiliser performance, thanks to its one-piece, high-lift fin.

Typical applications: • Large motor yachts • Small cruise ships• Passenger ferries• Small naval and coast guard vessels

Technical data, Aquarius retractable-fin stabilisers

25 1.06 9.7 1.41 10.0 1.76 10,3 2.05 10.8 50 1.82 19.3 2.42 19.8 3.03 20.3 3.51 20.8 100 4.21 35.5 4.73 37.0 5.26 39.0 5.78 40.2All data subject to change without prior notice.

Aquarius Fin area Total weight model (m2) (tonnes)

Key product benefits• Enhanced stabiliser performance thanks to the one-piece high-lift fin• Low installation costs for hydraulic, mechanical and control equipment• Ease of integration with ship’s alarm and monitoring systems• Small hull aperture• Linear actuators for fin tilt and extension• Integral lubrication system • Fin-box can be shipyard supplied• Load sensing hydraulics • Latest generation controls

20

When the fins are fully retracted, only a small part of the trailing edge remains outside the finbox (Aquarius variant shown).

Stabilisation-at-restThe stabilisation-at-rest system uses the proven and reliableAquarius and Neptune ranges of retractable stabilisers. Thesystem is ideal for medium to large yachts and is the world’s first to be made available with the benefits of retractable fins.

The fins can be folded away when not required to improvesafety, maintain manoeuvrability in confined spaces or when travelling at high speed. With the fin retracted drag is negligible, and compared to the industry standard there is also less fin drag in the working condition.

“Active” fin control and advanced hydrodynamic design give outstanding roll reduction at anchor and the usual excellentperformance whilst underway.

Stabilisation-at-restStabilisers

Key product benefits• Rolls-Royce retractable stabilisers will deliver the required roll reduction with only a single pair of fins• Fewer components and the sub-systems means reliability, and availability, with less maintenance• Units normally fit into the main machinery space, with simple access for routine maintenance• Electro-hydraulic actuation for low noise

Typical applications: • Medium to large yachts

50-100+ meters

Technical data, Aquarius SAR retractable fin stabilisers*

25 Up to 4.0 1350 Up to 6.1 24100 Up to 9.0 42200 Up to 12.0 50300 Up to 15.0 75

Aquarius Fin area Approx. model (m2) weight/ship set (tonnes)

21

The Gemini range of stabilisers are suited to commercial vessels and military vessels with minimal or no military/naval specifications.

Technical data, Gemini folding-fin stabilisers*

Gemini non-retractable stabilisersFor applications where retraction of the fins is not required, the Gemini range is available for smaller vessels where high performance and low cost are important factors. The Gemini range of non-retractable stabilisers are supplied with a plain, high performance fabricated fin. Gemini stabilisers provide high performance roll damping with a compact, lightweight design and modern controls, as well as proving highly dependable with low mainte nance costs. The power unit is compact, incorpo-rating pumps, motor, proportional control valves and cooler, and the range can be supplied with or without a hull plate to allow a balance of cost against ease of installation.

The modular type of stabilisers meet military standards for noise, shock and vibration levels.

Modular stabilisersThe modular stabiliser range incorporates superior hydro dynamic features, and is designed to satisfy standards for noise, shock and vibration where these are required to meet customer military/naval specifications. A keyless taper socket fin attachment allows the hydro dynamic profile of the fin blade to remain unbroken, reducing the potential for cavitation. If required, air emission from the leading edge of the fin can also be utilised to minimise noise induced by cavitation. The hull-closing plate is an integral part of the fin unit. Installation is easy, as the unit is shaped to fit the hull lines exactly, so e xpensive seating structures and finishing work can be avoided.

10 1.4 3.42 20 2.0 5.71 30 3.2 10.16

NR22 1.9 30 6.8 2.9 19 8.4 3.5 27 9.04 4.8 19 12.2NR26 5.0 27 14.4 6.5 19 18.6NR30 7.0 26 21.1 9.0 19 26.6NR35 9.5 25 29.9 12.0 18 36.72NR41 13.0 25 42.4 16.5 18 52.1

Gemini Fin area Total model (m2) weight (tonnes)**

*All data subject to change without prior notice. **Weight includes optional hull plate.

Technical data, Modular range*

Model Fin area Design Weight (m2) speed (tonnes) (knots)

Non-retractable stabilisersStabilisers

Typical applications: • Large motor yachts • Fast ferries• Small naval and

coastguard vessels

Typical applications: • Corvettes & patrol vessels• Frigates• Destroyers• Auxiliaries

Key product benefits• Enhanced stabiliser performance due to high-lift fin• Compact power unit containing all the hydraulic,

mechanical and control equipment • Ease of integration with ship’s hull and systems

Key product benefits• Self-aligning bearings • Special finshaft coating • Simple installation procedure• Fin size tailored to meet the design and perfor mance of

individual ships• Low maintenance

22

Our support teams, located worldwide, are committed to helping youmanage the vital balance between operational availability and cost. Wherever your vessel is located, Rolls-Royce support is close at hand.

Operational availability must be maintained today in the most cost-effective way. Variable market conditions and increasing competition should not undermine safe ship operations. Therefore, we work closely with our customers to support their fleets, ensuring that they are operating safely and at maximum efficiency, with the goal of virtually eliminating unscheduled downtime.

A comprehensive menu of service solutionsWe are proud of the performance of our systems, and are keen to ensure that they continue to operate at their peak throughout their lifetime. Our services now range from conventional product support, with no impact on ship availability, through to a range of equipment and system support packages with levels of vessel performance and availability agreed, normally within a long-term risk and reward-sharing partnership called MarineCare.

Single point of contactAs we have progressively increased the breadth of our product range, we have continued investing heavily in the facilities and the talent needed to support them. As multiproduct installations are becoming standard on a growing number of vessels, customers benefit from a single point of contact for support, which is usually the nearest Rolls-Royce regional centre to the vessel’s location.

Reducing through life costsReducing operating costs and maximising availability is our objective. This has led us to work closer with a number of our customers in maintenance planning and recommending spares holding. By being involved from the start we have the opportunity to focus on the activities that make a difference, acquiring and pre-positioning service or exchange parts to ensure a smoother overhaul process, saving time spent in dock.

Committed to meeting different needsAbove all, at the centre of our support philosophy, is recognition that all customers have different and often unique requirements, based on their fleet operations. Whatever the mix of requirements, Rolls-Royce is committed to meeting or exceeding them.

Product trainingAt Rolls-Royce we believe that regular training ensures that you will get the most out of a vessel’s equipment and systems, and it also ensures that they are operated and maintained efficiently and safely. Experienced and informed people are a key asset.As technology advances, so must the competence levels of operators and service personnel. We therefore offer a range of tailored training courses and programmes in state-of-the-art facilities equipped with the latest simulators and training aids.

Global service and support

NORTHERN EUROPE

D E N M A R K

AalborgTel: +45 99 30 36 00

F I N L A N D

HelsinkiTel: +358 9 4730 3301

Kokkola(Waterjets)Tel: +358 6 832 4500

Rauma(Propulsion/Deck Machinery)Tel: +358 2 837 91

F RA N C E

Paris(Naval Marine)Tel: +33 147 221 440

RungisTel: +33 1 468 62811

G E R M A NY

Hamburg(Sales and Service)Tel: +49 40 780 91 90

T H E N E T H E R L A N D S

RotterdamTel: +31 10 40 90 920

N O RWAY

Aalesund (Head Office, Merchant)

(Control Systems)

(Ship Design, Fish, Specialised and Merchant)

(Rudders)Tel: +47 815 20 070

(Training Centre)Tel: +47 70 23 51 00

Bergen(Engines)

(Foundry)

(Steering Gear)Tel: +47 815 20 070

(Power Electric Systems)Tel: +47 55 50 62 00

Brattvaag(Deck Machinery and Steering Gear)Tel: +47 815 20 070

Hjørungavåg(Deck Machinery Seismic andSubsea)Tel: +47 70 01 33 00

SOUTHERN EUROPE

C ROAT I A

RijekaNavis ConsultPart of Rolls-Royce Marine Tel: +385 51 500 100

G R E E C E

PiraeusTel: +30 210 4599 688/9

I TA LY

GenovaTel: +39 010 749 391

S PA I N

BilbaoTel: +34 944 805 216

MadridTel: +34 913 585 319

Tarragona Tel: +34 977 296 444

TU R K EY

IstanbulTel: +90 216 446 9999

AFRICA AND MIDDLE EAST

N A M I B I A

Walvis BayTel: +264 (0) 64 275 440

UNITED ARAB EMIRATES

Dubai(Sales and Service)Tel: +971 4 883 3881

(Naval Marine)Tel: +971 4 299 4343

ASIA PACIFIC

AU ST RA L I A

MelbourneTel: +61 3 9873 0988

PerthTel: +61 8 9336 7910

Sydney(Naval Marine)Tel: +61 2 9325 1333

I N D I A

MumbaiTel: +91 22 6726 3838

M A L AYS I A

Kuala Lumpur (Naval Marine) Tel: +60 3 2026 1990

N EW Z EA L A N D

ChristchurchTel: +64 3 962 1230

S I N GA P O R E

Singapore (Head Office, Marine)Tel: +65 68 62 1901

(Sales and Service)Tel: +65 68 62 1901

VIETNAM

Vung Tau CityTel: +84 64 3576 000

NORTHEAST ASIA

C H I N A

DalianTel: +86 411 8230 5198

Hong KongTel: +852 2526 6937

Shanghai (Sales and Service)Tel: +86 21 2030 2800

(Deck Machinery)Tel: +86 21 5818 8899

GuangzhouTel: +86 20 8491 1696

JA PA N

Kobe Tel: +81 78 651 6555

TokyoTel: +81 3 3592 0966

R E P U B L I C O F KO R EA

BusanTel: +82 51 831 4100

R U S S I A

St. PetersburgTel: +7 812 332 18 55

VladivostokTel: +7 4232 495 484

AMERICAS

B RA Z I L

Rio de Janeiro(Sales and Service)Tel: +55 21 2707 5900

(Naval Marine)Tel: +55 21 2277 0100

CA N A DA

Dartmouth (Naval Undersea Systems)Tel: +1 902 468 2928

Longva(Automation) Tel: +47 815 20 070

Molde(Cranes)Tel: +47 70 31 15 00

Oslo(Repr. Office)Tel: +47 815 20 070

Ulsteinvik (Head Office, Offshore)(Ship Design, Offshore)

(Propulsion)Tel: +47 815 20 070

P O L A N D

GdyniaTel: +48 58 782 06 55

Gniew(Deck Machinery)Tel: +48 58 535 22 71

SW E D E N

Kristinehamn(Propulsion)Tel: +46 550 840 00

U N I T E D K I N G D OM

Bristol(Head Office, Naval)Tel: +44 117 974 8500

(Marine Gas Turbine Support)Tel: +44 117 979 7242

DartfordTel: +44 1322 312 028

Derby (Head Office, Submarines)Tel: +44 1332 661 461

Dunfermline(Motion Control)Tel: +44 1383 82 31 88

Newcastle (Bearings)Tel: +44 191 273 0291

(RAS Systems)Tel: +44 191 256 2800

Portsmouth(Marine Electrical Systems)Tel: +44 2392 310 000

Peterborough (Naval Undersea Systems)Tel: +1 705 743 9249

St. John´sTel: +1 709 748 7650

VancouverTel: +1 604 942 1100

C H I L E

SantiagoTel: +56 2 586 4700

M Ex I CO

VeracruzTel: +52 229 272 2240

U SA

Annapolis (Naval Marine Inc)Tel: +1 410 224 2130

(Shiplift Systems)Tel: +1 410 224 2130

GalvestonTel: +1 409 765 4800

HoustonTel: +1 281 902 3300

IndianapolisNaval Marine Inc)Tel: +1 317 230 2000

Long Beach, Cal.Tel: +1 562 989 0291

Ft Lauderdale Tel: +1 954 436 7100

New Bedford(Naval Underseas Systems)Tel: +1 508 990 4575

New OrleansTel: +1 504 464 4561

Pascagoula (Foundry - Naval Marine Inc)Tel: +1 228 762 0728

SeattleTel: +1 206 782 9190

Walpole(Naval Marine Inc)Tel: +1 508 668 9610

Washington(Naval Marine Inc)Tel: +1 703 834 1700

© Rolls-Royce plc 2014

The information in this document is the property of Rolls-Royce plc and may not be copied, or communicated to a third party, or used, for any purpose other than that for which it is supplied without the express written consent of Rolls-Royce plc.

Whilst this information is given in good faith based upon the latest information available 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.

CMSS 0114Printed in Norway

www.rolls-royce.com

Rolls-Royce plc

Rolls-Royce Offshore PO Box 1522NO-6025 AalesundNorwayTel: +47 815 20 070Fax: +47 70 01 40 05

Rolls-Royce Merchant PO Box 1522 NO-6025 Aalesund Norway Tel: +47 815 20 070 Fax: +47 70 01 40 05

Rolls-Royce Naval PO Box 3, FiltonBristol BS34 7QEEnglandTel: +44 117 974 8500Fax: +44 117 974 8666

Rolls-Royce Submarines PO Box 2000, Raynesway DE21 7XX DerbyEnglandTel: +44 1332 661 461Fax: +44 1332 249 047

www.rolls-royce.com