Bow thrusters

How to choose this product

A bow thruster is a motor and propeller mounted transversally at a vessel's bow to increase lateral maneuverability.

Applications

This device is used in conjunction with the main engine for port maneuvers or to counter a crosswind or current. NauticExpo offers thrusters for leisure craft as well as for ships.

Technologies

The bow thruster works in the same manner as any propeller. A motor turns the blades, creating thrust as the result of the pressure differential between the blade surfaces. Some thrusters are mounted in a tunnel traversing the hull. Others descend hydraulically from the bottom of the vessel when needed. In the retracted position, such units sit flush within the hull, creating no turbulence.

Since thruster power and type vary widely, there are models suitable for boats and ships of any size. Certain tunnel versions have two counter-rotating propellers. The motor is either electric or hydraulic.

How to choose

Minimum power requirements will depend on the size and displacement of the vessel. The largest ships sometimes have two or even three thrusters to increase effectiveness. Retractable models eliminate the turbulence problems of tunnel versions.

Advantages

- Maneuverability

Disadvantages

- Significant energy consumption

53 companies | 249 products (boat or nautical equipment)

Companies per page

10 products Lewmar
new Lewmar SWING
Boat hydraulic retractable SWING Lewmar

Swing retracting thrusters are ideal for higher performance sailing yachts, and fast planing or semi-displacement hulls. With the thruster in a raised position it offers a completely fair hull section...

Lewmar 140TT TUNNEL
Bow and stern thruster for boats (electric) 140TT TUNNEL Lewmar

. No reservoir to install, no leaks and no maintenance . High performance 5 blade propellers give equal thrust in both directions . High...

Lewmar 185TT TUNNEL
Boat bow and stern thruster 185TT TUNNEL Lewmar

. No reservoir to install, no leaks and no maintenance . High performance 5 blade propellers give equal thrust in both directions . High...

Lewmar 250TT TUNNEL
Bow and stern thruster for boats (electric) 250TT TUNNEL Lewmar

. No reservoir to install, no leaks and no maintenance . High performance 5 blade propellers give equal thrust in both directions . High...

Lewmar 300TT TUNNEL
Bow and stern thruster for boats (electric) 300TT TUNNEL Lewmar

. No reservoir to install, no leaks and no maintenance . High performance 5 blade propellers give equal thrust in both directions . High...

Lewmar IP RATED TUNNEL
Boat electric IP RATED TUNNEL Lewmar

. Certified for use in Ignition Protected Areas . No reservoir to install, no leaks and no maintenance . High performance 5 blade propellers give...

14 products Twin Disc
20 products VETUS
17 products Quick
Quick BTQ 140
Boat electric BTQ 140 Quick

BTQ 140 - Single propeller Single propeller made in sturdy composite material....

Quick BTQ 185
Boat electric BTQ 185 Quick

BTQ 185 - Single propeller Single propeller made in sturdy composite material....

Quick BTQ 185 DP
Boat electric BTQ 185 DP Quick

BTQ 185 - Single propeller Single propeller made in sturdy composite material. Recommended...

Quick BTQ 250
Boat electric BTQ 250 Quick

BTQ 250 - Double counter-rotating propellers Double propellers made in sturdy composite...

Quick BTQ 300-250
Boat electric BTQ 300-250 Quick

BTQ 300 - Double counter-rotating propellers Double propellers made in sturdy composite...

Quick BTQ 300-270
Boat electric BTQ 300-270 Quick

BTQ 300 - Double counter-rotating propellers Double propellers made in sturdy composite...

42 products Sleipner Motor
Sleipner Motor SE 60 / 185 S (3.1 KW @ 1.5 V)
Bow and stern thruster 0-5 hp for boats (electric) SE 60 / 185 S (3.1 KW @ 1.5 V) Sleipner Motor

With its outstanding energy efficiency and unrivalled reliability,...

Sleipner Motor SE 80 / 185 T (4.4 KW @ 10.5 V)
Bow and stern thruster 5-10 hp for boats (electric) SE 80 / 185 T (4.4 KW @ 10.5 V) Sleipner Motor

The SE80/185T suits a wide range of boats around the 12m/40’ mark and is thereby a very popular model. Utilizing the same...

Sleipner Motor SE 100 / 185 T (6.3 KW @ 10.5 V)
Bow and stern thruster 5-10 hp for boats (electric) SE 100 / 185 T (6.3 KW @ 10.5 V) Sleipner Motor

The SE100/185T replaces the SP95Ti as the most powerful thruster available in the...

Sleipner Motor SE 120 / 215 T (6.4 KW @ 10.5 V)
Bow and stern thruster 5-10 hp for boats (electric) SE 120 / 215 T (6.4 KW @ 10.5 V) Sleipner Motor

The SE 120/215T meets the requirements of the modern yachts - high power in a compact...

2 products Rolls-Royce
Rolls-Royce SWING-UP
Azimuth for ships retractable tunnel type SWING-UP Rolls-Royce

This thruster swings up into a housing in the hull when not in use. It can quickly be swung down about a horizontal axis into the operating position. In operation, it functions as an azimuth thruster...

Rolls-Royce
For ships tunnel type hydraulic Rolls-Royce

The tunnel thruster is designed for giving max. side force to the ship in manoeuvring condition. The system normally consists of the thruster unit with tunnel,...

2 products Schottel
Schottel SRP ZSV SERIES
For ships retractable SRP ZSV SERIES Schottel

The SCHOTTEL Rudderpropeller (SRP) sets worldwide standards as a main or auxiliary propulsion unit, even in the toughest offshore operation. By rotating the underwater...

video Schottel STT SERIES
For ships tunnel type STT SERIES Schottel

Transverse thrusters are installed in the bow or stern in order to improve manoeuvrability. Depending...

Wärtsilä Corporation
For ships retractable Wärtsilä Corporation

Wärtsilä Retractable Thrusters improve the dynamic positioning performance...

Wärtsilä Corporation HR - HP
For ships retractable HR - HP Wärtsilä Corporation

Wärtsilä Underwater Demountable Thrusters are mainly intended for semi-subs and drilling...

Wärtsilä Corporation
For ships tunnel type Wärtsilä Corporation

Wärtsilä Transfer Thrusters utilize a bevel gear driven propeller in a...

Berg Propulsion BFTT
For ships tunnel type BFTT Berg Propulsion

BERG Transverse Thruster – type BFTT is a fixed pitch propeller type thruster used when shaft speed is variable and ease of reversing is important. The propeller unit with the gear housing can be removed...

Berg Propulsion BTT
For ships tunnel type variable pitch propeller BTT Berg Propulsion

Berg Transverse Thruster system - type BTT is a controllable pitch propeller normally used for constant shaft speed. The propeller unit and the gear housing can be removed from the tunnel when installed...

HYUNDAI Marine Engines HSC / HSF SERIES
For ships tunnel type hydraulic HSC / HSF SERIES HYUNDAI Marine Engines

Hyundai Thruster can be fitted to a wide range of vessels operating in al over the world. The tunnel thruster...

1 products ZF Marine
ZF Marine
For ships tunnel type electric ZF Marine

These auxiliary propulsion units with optimized hydrodynamic efficiency lead to significantly increased maneuverability for traditional shaftline equipped commercial...

1 products Almar
Almar QA 400E
Boat bow and stern thruster QA 400E Almar

The stern thrust installation, developed and produced by ALMAR, is being mounted underneath the bathing plattform at least 80 mm below the water-line on the outside onto the flat of the stern. The mounting...

Cramm Yachting Systems BV
Yacht Cramm Yachting Systems BV

Full range of hydraulic bowthrusters...

Hydraulic Marine Systems
Boat bow and stern thruster (external mount) Hydraulic Marine Systems

Outboard mounted and inboard thru-hull mounted azimuth style Hydraulic Thrusters are a very cost effective addition or ugrade to your existing platform or vessel. These units are quick mounted, heavy...

Global Marine Engineering BV 20 -> 1300 KW
For ships tunnel type 20 -> 1300 KW Global Marine Engineering BV

Global Marine Engineering BV, based in Heijningen-Holland, is a very experienced technical company with a history of over 25 years and active in manufacturing drive systems, clutches and gearboxes for...

2 products Wesmar
Wesmar DC PRO
Boat electric DC PRO Wesmar

Extremely efficient electric motors eliminate the possibility of early thermal shutdown. Fully proportional control for safe and gentle docking; or full...

Wesmar WESMAR™
Boat bow and stern thruster WESMAR™ Wesmar

Thrusters for Fiberglass, Aluminum, Steel and Wood Vessels...

Craftsman Marine B.V.  35 KGF - 12 V
Boat electric 35 KGF - 12 V Craftsman Marine B.V.

This bow thruster is especially developed on behalf of smaller craft. The tunnel diameter is extremely small, no more than 110mm....

Craftsman Marine B.V.  55 KGF - 12 V
Boat electric 55 KGF - 12 V Craftsman Marine B.V.

By virtue of the specific design of the propellers and the optimized streamline of the tail piece, the noise production of these Craftsman Marine thrusters is reduced to the bare minimum. The propeller...

Craftsman Marine B.V.  55 - 65 KGF - 6 CM³
Boat hydraulic 55 - 65 KGF - 6 CM³ Craftsman Marine B.V.

Article code: BA.150.20006 Thrust force [kgf]:...

Craftsman Marine B.V.  80 KGF - 12 V
Boat electric 80 KGF - 12 V Craftsman Marine B.V.

By virtue of the specific design of the propellers and the optimized streamline of the tail piece, the noise production of these Craftsman Marine thrusters is reduced to the bare minimum. The propeller...

Craftsman Marine B.V.  80 KGF - 24 V
Boat electric 80 KGF - 24 V Craftsman Marine B.V.

By virtue of the specific design of the propellers and the optimized streamline of the tail piece, the noise production of these Craftsman Marine thrusters is reduced to the bare minimum. The propeller...

Craftsman Marine B.V.  95 KGF - 12 V
Boat electric 95 KGF - 12 V Craftsman Marine B.V.

By virtue of the specific design of the propellers and the optimized streamline of the tail piece, the noise production of these Craftsman Marine thrusters is reduced to the bare minimum. The propeller...

Sleipner-Marinno GmbH EXTURN 110 (28 KGF)
Boat bow and stern thruster EXTURN 110 (28 KGF) Sleipner-Marinno GmbH

The EXTURN bow and stern thruster is mountable onto nearly any boat of size between 6 and 20 m independently of hull shape,...

video Sleipner-Marinno GmbH EXTURN 130 (35 KGF)
Boat bow and stern thruster EXTURN 130 (35 KGF) Sleipner-Marinno GmbH

The EXTURN bow and stern thruster is mountable onto nearly any boat of size between 6 and 20 m independently of hull shape,...

video Sleipner-Marinno GmbH EXTURN 180 (56 KGF)
Boat bow and stern thruster EXTURN 180 (56 KGF) Sleipner-Marinno GmbH

The EXTURN bow and stern thruster is mountable onto nearly any boat of size between 6 and 20 m independently of hull shape,...

video Sleipner-Marinno GmbH EXTURN 230 (74 KGF)
Boat bow and stern thruster EXTURN 230 (74 KGF) Sleipner-Marinno GmbH

The EXTURN bow and stern thruster is mountable onto nearly any boat of size between 6 and 20 m independently of hull shape,...

Sleipner-Marinno GmbH EXTURN 300 (94 KGF)
Boat bow and stern thruster EXTURN 300 (94 KGF) Sleipner-Marinno GmbH

The EXTURN bow and stern thruster is mountable onto nearly any boat of size between 6 and 20 m independently of hull shape,...

video Sleipner-Marinno GmbH EXTURN 400 DUPLEX (110 KGF)
Boat bow and stern thruster EXTURN 400 DUPLEX (110 KGF) Sleipner-Marinno GmbH

The EXTURN bow and stern thruster is mountable onto nearly any boat of size between 6 and 20 m independently of hull shape,...

8 products ABT TRAC
ABT TRAC ABT-TRAC 8
Boat bow and stern thruster (hydraulic) ABT-TRAC 8" ABT TRAC

ABT-TRAC Hydraulic Thrusters ABT-TRAC Hydraulic Thrusters deliver more thrust per horsepower than any other thruster available. ABT-TRAC’s twin counter-rotating propellers are more efficient and can...

ABT TRAC ABT-TRAC 10
Boat bow and stern thruster (hydraulic) ABT-TRAC 10" - 12" ABT TRAC

ABT-TRAC Hydraulic Thrusters ABT-TRAC Hydraulic Thrusters deliver more thrust per horsepower than any other thruster available. ABT-TRAC’s twin counter-rotating propellers are more efficient and can...

ABT TRAC ABT-TRAC 16
Boat bow and stern thruster (hydraulic) ABT-TRAC 16" - 20" ABT TRAC

ABT-TRAC Hydraulic Thrusters ABT-TRAC Hydraulic Thrusters deliver more thrust per horsepower than any other thruster available. ABT-TRAC’s twin counter-rotating propellers are more efficient and can...

ABT TRAC ABT-TRAC 24” - 28”
Boat bow and stern thruster (hydraulic) ABT-TRAC 24” - 28” ABT TRAC

ABT-TRAC Hydraulic Thrusters deliver more thrust per horsepower...

ABT TRAC TRAC DC (24 V)
Bow and stern thruster for boats (electric) TRAC DC (24 V) ABT TRAC

TRAC Thrusters deliver more thrust per horsepower than any other thruster available. TRAC’s twin counter-rotating propellers are more...

ABT TRAC TRAC AC
Boat hydraulic twin counterrotating propellers TRAC AC ABT TRAC

ABT-TRAC Thrusters deliver more thrust per horsepower than any other thruster available. TRAC’s twin counter-rotating propellers are more efficient and can reach higher horsepower than single prop thrusters. ABT-TRAC...

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Associated Terms

bow drives, marine bow thrusters

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