WÄRTSILÄ STEERABLE THRUSTER SOLUTIONS

When it comes to designing, manufacturing

and delivering high-quality steerable

thrusters for offshore, offshore support,

seagoing ships and tugs Wärtsilä is the

right partner.

Our dedicated engineering team

always seeks optimal solutions in close

co-operation with you, whether you are the

owner / operator, consultant or shipyard.

THE WÄRTSILÄ® STEERABLE THRUSTERS OFFER YOU FOUR MAJOR TECHNICAL BENEFITS:

BEARING ARRANGEMENT

Exclusive use of anti-friction spherical

roller or tapered roller bearings, which run

completely immersed in ISO 150 gear type

lubricating oil.

A split axial and radial bearing layout is

applied; since each bearing has a specific

function, this layout ensures they perform in

the optimal way.

Bearing lifetime is in the order of 115,000

hours based on an average operational profile.

GEARWHEELS / TOOTH CONTACT PATTERN

The bevel gears (pinion and crown wheel) are

machined according the cyclo-palloid (high

power gear) method from high-quality forged

steel.

The teeth are fine-machined when the

hardening process is successfully completed.

When finished, the gearwheels comply with

class 6 or better under DIN 3965.

Optimal tooth contact is achieved by precise

adjustment of the gearwheels and the split

axial and radial bearing layout.

The pinion is supported on both sides by

radial roller bearings (lower bearing in cast-in

straddle), to prevent changes to the gear mesh

adjustment under variable load. Gearwheel

lifetime is infinite.

OUTBOARD SEALS

To prevent water ingress or oil leakage,

high-quality outboard seals are fitted on the

propeller shaft and steering pipe with:

Triple Viton lip type (exchangeable) sealing •rings

Liner with ceramic coating •

PROPULSION SOLUTIONS WITH STEERABLE THRUSTERS

Supply vessel Miss Jane Tide is equipped with two LIPS FS1510-350/1510 BN steerable thrusters and FS175-234/MNR retractable steerable thruster.

Oceanographic research vessel Pathfinder is equipped with two LIPS FS2510-463/2500 BO and FS500-234/MNR.

Heavy left pipelayer semi-sub Thialf is equipped with six LIPS FS3500-671/MNR steerable retractable thrusters.

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Heavy left pipelayer semi-sub Thialf is equipped with six LIPS FS3500-671/MNR steerable retractable thrusters.

Lower gearbox with doublesided pinion bearings.

Propeller shaft seal. Steering pipe seal.

LIPS modular thruster 1600 kW.

PROPELLER DESIGN

The propeller design is always optimized and

tailored to specifi c operational conditions. Our

highly skilled and experienced engineers use

state-of-the-art design programs to achieve:

Cavitation- and vibration-free running, also •in off-design conditions

High effi ciency •Low pressure pulse level •

BENEFITS IN OPERATIONWärtsilä steerable thrusters generate

considerable savings in operational costs due to:

Reliable and durable components •Long lifetime of the bearings and gears •Effi cient propeller design and low •mechanical losses (saving fuel)

Maintenance-friendly design •

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LIPS compact thrusters offer you the benefi ts

of a reliable, durable and standardized design:

Maintenance-friendly •Low operational costs •Easy mounting, saving work at the shipyard •Built-on pumps systems eliminate pipe •work

Excellent price / quality ratio •

POWER RANGE: 800 – 3000 KW

LIPS compact thrusters are applied in offshore

support vessels, tugs and other seagoing ships

for:

Main propulsion •Manoeuvring and dynamic positioning •Towing and pushing •

DESIGN FEATURES OF LIPS COMPACT THRUSTERS

Weld-in type: mounting from below •Auxiliaries (except steering pump) built-on •Standard propeller diameters •Intermediate shafting •Z-drive: power from diesel engine or •horizontal E-motor

L-drive: power from vertical E-motor (built- •on motor seating)

STANDARD OPTIONSFixed pitch or controllable pitch propeller •Open propeller or propeller in nozzle •

19A or the special high-lift LIPS HR nozzle •Built-on soft pneumatic on/off clutch •Free-standing air operated on/off clutch or •modulating hydraulic clutch

Mounting can: bolt-in mounting in ship from •above (de-mounting possible while vessel

is afl oat)

AUXILIARY SYSTEMSEach thruster has its own independent auxiliary

system consisting of standard lubricating and

pitch actuating system and standard hydraulic

steering system.

STANDARD LUBRICATING AND PITCH

ACTUATING SYSTEM

Built-on pumps, control valve, fi lters, •coolers and tank

Pumps driven by the thruster •ISO 150 gear type lubricating oil. •

OPTION

Electrically driven lubricating and pitch •actuating pumps

STANDARD HYDRAULIC STEERING SYSTEM

Pump (variable displacement), control valve, •cooler and tank: supplied loose

Pump driven by PTO from shaft or free- •standing modulating clutch

ISO 46 hydraulic oil. •OPTIONS

Electrically driven steering pump •Electric steering system •

LIPS COMPACT THRUSTERS

19A nozzle. LIPS HR nozzles improve performance by 6-9%.

REMOTE CONTROL SYSTEMSTANDARD REMOTE CONTROL SYSTEM

PROVIDES

Steering control and engine / motor RPM •control (thruster with FPP)

Steering control combined with pitch control •and motor RPM control (thruster with CPP)

Each thruster has an independent remote

control system consisting of:

Wheelhouse control panel, with rotatable •lever unit and back-up jog switch

ER control panel (thruster with CPP) •Control cabinet •Auto pilot interfaces •Diesel engine / E-motor interfaces •

STANDARD OPTIONS

Additional control panels •Interfaces for DP joystick system •Pre-programmed single lever control of two •thrusters (tugs)

PROPULSION PACKAGESThe LIPS compact thrusters are perfectly

matched to Wärtsilä 4-stroke engines,

forming a propulsion package that offers you

a single point of contact and responsibility.

Packages with other engine makers can be

formed, should owners or operators so wish.

The same applies to packages formed with

manufacturers of electric motor drives. In any

case Wärtsilä takes care of proper interfacing

both mechanically and electronically.

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2000 kW compact thruster FS250-S/WN.

Tug Thetis is equipped with two LIPS FS250-S/WN with HR nozzle and two Wärtsilä 9L20 engines.

AH tug/supply vessel Seabulk Badamyard, equipped with two LIPS CS225-S/WN-K and two Wärtsilä 8L20 engines.

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LIPS modular thrusters offer you the benefits of

a reliable, durable and tailor-made design:

High performance, eliminating downtime •Customized solutions •Maintenance-friendly •Low operational costs •Excellent price / quality ratio •

POWER RANGE: FROM 800 TO OVER 7000 KW

Wärtsilä’s engineering team creates a tailored

modular thruster configuration by applying

well-designed basic modules and adding

dedicated components.

BASIC FEATURES OF MODULAR THRUSTERSVariable propeller diameter •Tailored fixed pitch or controllable pitch •propeller

Open propeller or propeller in 19A nozzle or •special high-lift LIPS HR nozzle

Variable height of inboard part •Intermediate shafting •L-drive: power from vertical electric motor •Z-drive: power from diesel engine or •horizontal electric motor

LIPS MODULAR THRUSTERS

Field development ship SAIBOS FDS is equipped with two LIPS FS1510-450/1510 MNR and two FS3500- 671/3500 BN.

Submersible heavy lift vessel Blue Marlin is equipped with two LIPS CS3500-671/3500MNR retractable thrusters.

AUXILIARY SYSTEMSEach thruster has an independent auxiliary

system consisting of:

LUBRICATING SYSTEM

Pump (100%), filter and tank are supplied •loose and mounted near the thruster

Pump is driven by electric motor •Oil type: mineral ISO 150 •

OPTION

Two pumps each 100% •HYDRAULIC PITCH ACTUATING SYSTEM

Power pack (supplied loose) comprising •two pumps (each 50%), load-sensing valve,

control valve and cooler

Pumps are driven by electric motor •Oil type: mineral ISO 150 •

OPTION

Two pumps each 100% •HYDRAULIC STEERING SYSTEM

Power pack (supplied loose) comprising •two pumps (each 50%), load-sensing valve,

control valves and cooler

Pumps are driven by electric motor •Hydraulic oil: ISO 46 •

OPTION

Two pumps each 100% •NOTE:

Steering pumps are also used for retracting

and lowering of the retractable thruster.

REMOTE CONTROL SYSTEMTHE REMOTE CONTROL SYSTEM PROVIDES

Steering control and engine / motor RPM •control (thruster with FPP)

Steering control combined with pitch control •(thruster with CPP)

Each thruster has an independent remote

control system consisting of:

Wheelhouse control panel, with rotatable •lever unit and back-up jog switch

ER control panel (thruster with CPP) •Control cabinet •Autopilot interfaces •DP / joystick interfaces •Diesel engine / electric motor interfaces •

OPTIONS

Additional control panels •Output to manoeuvring recorder, VDR •

NOTE:

Control panels are left out of scope if the

vessel is controlled by an integrated control /

DP / joystick system from other manufacturer.

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Modular / can-mounted thrusters are applied

in offshore and seagoing ships for:

Main propulsion •Manoeuvring / dynamic positioning •Towing and pushing •

BASIC MODULAR THRUSTER

Bolt-in type, inboard part installed from •above into a flanged (heavy tube type)

bottom well

Outboard part bolted to inboard part from •below

LIPS MODULAR / CAN-MOUNTED THRUSTERSBASIC CAN-MOUNTED THRUSTER

Thruster in bolt-in type steel circular or •rectangular can

Mounting flange of can is non-machined •and fitted by bolts and epoxy resin

Adjustable thrust pads at lower end of can •Installed in a flanged bottom well from •above as one complete unit

ADVANTAGE

If no docking facilities are available a can-

mounted thruster may be de-mounted while

the vessel is afloat to enable maintenance.

Cable layer Knight is equipped with two LIPS FS3500-671/MN and two FS1510-350/1510 MNR.

Internals modular Z-drive thruster.

2200 kW can-mounted thruster.

Stemsection of a retractable thruster at the yard.

MODULAR THRUSTER TYPESModular / can-mounted thruster •Retractable thruster •Containerized thruster •Underwater de-mountable thruster •

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LIPS MODULAR RETRACTABLE THRUSTERS

Retractable thrusters are applied in offshore

and seagoing ships for dynamic positioning

and emergency or loitering propulsion.

TYPICAL ADVANTAGES

Retracting the thruster within the baseline

enables:

Entrance to shallow water (harbour) •Reduced drag when not in use during •transit

BASIC THRUSTER UP TO 2000 KW

Bolt-in type foundation plate •Retracting and lowering by hydraulic •cylinders

Hydraulic locking hooks •Installed from above into a fl anged bottom •well as one complete unit

Installing 1200 kW retractable thruster.1500 kW retractable thruster with hull closing plate.

Stemsection of a 5000 kW retractable thruster.

BASIC THRUSTER ABOVE 2000 KW

Weld-in type foundation plate •Retracting and lowering by self-braking •screw-spindles driven by hydraulic motors

Main components installed from above and •below into a bottom well without fl ange

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LIPS MODULAR CONTAINERIZED THRUSTERSContainerized thrusters are applied in offshore

(semi-subs and drilling ships) and seagoing

ships for dynamic positioning.

TYPICAL ADVANTAGES

Delivered as a ready drop-in unit and •installed while the vessel is afl oat

Reduced work and building time at shipyard •Lifted out of the vessel for maintenance •purposes

Retrievable containerized thruster: •completely lifted into the vessel by hydraulic

rack and pinion system. Maintenance is

possible without interrupting operation of

the vessel

CONTAINERIZED THRUSTER TYPES

Modular thruster in container •Retractable thruster in container •Underwater de-mountable thruster in •container

Retrievable containerized thruster •

CONTAINER TYPES / HEIGHTS

Open top container (top inside ship) •Closed top container (top exposed to water •and may be submerged)

Container height depends on: •type and dimensions of thruster –container top fl ange ending above –waterline

BASIC THRUSTER

Bolt-in type steel welded cylindrical body •accommodating the thruster, its drive motor,

pump systems, lighting, piping, ladders and

platforms

Adjustable thrust blocks at lower end of •container

Pipe and cable connections at top •Installed from above into a fl anged bottom •well as one complete unit (afl oat)

800 kW retractable thrusters in assembly stage.

Drill ship Giomar Explorer is equipped with four LIPS FS1510-450/CN thrusters.

2200 kW containerized thrusters.

3000 kW retractable containerised thruster.

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Underwater de-mountable thrusters are

applied in offshore vessels (semi-subs and

drilling ships) and other seagoing ships for

dynamic positioning and main propulsion.

ADVANTAGES

Mounting / demounting of the removable •outboard part at sea by a stable three-wire

inboard hoisting system and one outboard

hoisting wire

LIPS MODULAR UNDERWATER DE-MOUNTABLE THRUSTERS

One outboardhoisting wire

Three inboard hoisting wires

Receptacle with steering gearbox on top Three tubes for hoisting wires

Flange for steering gearbox

Mountingflange

FPSO Ramform Banff is equipped with three FS2500-463/NU thrusters.

2800 kW underwater de-mountable thrusters.

Receptacle for removable outboard part.

Maintenance possible while the vessel •remains afloat

BASIC THRUSTER

Bolt-in receptacle installed into a flanged •(heavy tube type) bottom well

Steering gearbox on top of receptacle •Watertight caps and covers •Outboard part installed in receptacle from •below (afloat)

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Worldwide service stations are available to provide you

with spare parts and support by professional service

engineers. Well equipped workshops contribute to our

ability to give you high-quality local service.

When necessary the service stations can count on

dedicated support from Wärtsilä’s thruster engineering

team. Professional and quick support at low cost is

near to your place of operation.

WORLDWIDE SERVICE AND MAINTENANCE

Infinite lifetime gears.

Lower pinion bearing in cast-in straddle.

Overhaul in US workshop.

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WÄRTSILÄ® is a registered trademark. Copyright © 2007 Wärtsilä Corporation.

Wärtsilä enhances the business of its customers by providing them with

complete lifecycle power solutions. When creating better and environmentally

compatible technologies, Wärtsilä focuses on the marine and energy markets

with products and solutions as well as services. Through innovative products

and services, Wärtsilä sets out to be the most valued business partner of

all its customers. This is achieved by the dedication of more than 15,000

professionals manning 130 Wärtsilä locations in close to 70 countries around

the world.

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