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A bow thruster is a motor and propeller mounted transversally at a vessel's bow to increase lateral maneuverability.
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.
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.
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.
- Maneuverability
- Significant energy consumption
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Boat bow and stern thruster (retractable) VERTICAL RETRACTING Lewmar
Lewmar has continued development of its Custom Thruster range started in 1983 with the introduction of the VRTT series. The VRTT utilises the advances gained with the successful TT range, to give the most rugged and powerful range of retracting thrusters on the market. The...
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Bow and stern thruster 0-5 hp for boats (electric) BOW5512B, BOW5524B | 3KW @ 12/24V VETUS
WHY VETUS MANOEUVRING SYSTEMS? VETUS BOW AND STERN THRUSTERS DESIGN ADVANTAGES - A single propeller creates less flow disturbance in the tunnel -...
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Boat bow thruster (electric) BUGSTRAHLER ZF Marine
The new range of bow thrusters is principally intended for all types of pleasure craft, in particular for vessels requiring high maneuverability...
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Bow thruster 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 from...
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Side-Power have for several years manufactured ignition protected versions of the SP75T and SP95T thruster models. Now the second generation is...
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Bow thruster 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...
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Bow thruster for ships (tunnel type) Wärtsilä Corporation
Wärtsilä Transfer Thrusters utilize a bevel gear driven propeller in a...
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Bow thruster for ships (tunnel type, hydraulic) HSC / HSF HYUNDAI Marine Engines
Hyundai Thruster can be fitted to a wide range of vessels operating in al over the world. The tunnel thruster...
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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 is very easy as only...
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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 duty hydraulic thrusters, available...
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Bow thruster 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 industrial and...
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Boat bow and stern thruster Sleipner-Marinno GmbH
The idea for tunnel thrusters came up in the 70´s and wasn’t worked over since…concept is outdated ! EXTURN has been invented by an experienced group of sailors and...
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From 15 to 37 kW Trust pull (from...
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Azimuth bow thruster for ships (built-in) GAMMA: 558 KW (800 HP) Kalkman Scheepstechniek
* For output up to approx. 558 kW (800 HP) * Power source: hydraulic or diesel engine * Horizontal bronze propeller * Replace...
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Boat bow thruster (electric) DUALIS - 35 -> 220 kW CMC Marine
Dualis Advanced Series is the synthesis of experience of more than 20 years of work in the design and construction of thrusters and...
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Boat bow thruster PROP-EYE 170 Klingenburg, Abteilung Yachtbau
Prop-eye Is an extremely silent and powertul high-performance propeller with internal ring motor for short and continuous operation. Thus it is usable as a drive unit or as bow- and stern thrusters. Topic energy savings Skippers know the situation: Out of consideration for nature and for smaller boats there are usually speed limitations on fairways, rivers, channels or inland waters....
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Boat bow and stern thruster (hydraulic) Hydrosta
DESIGN Compactness and sturdiness characterize the Sider while the hydrodynamic shapes of the housing and propellerhub minimises the water resistance to upgrade efficiency. The concept of counter rotating propellers makes it possible to gain thrust out of a specific tunnel diameter. The hydraulic thrusters...
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Retractable bow thruster for super-yacht Hydromar Marine Equipment B.V.
Hydromar supplies three types of bowthrusters - fixed, vertically retractable and pivoting – and each can also be used as a sternthruster. They are made in bronze or aluminium alloy, depending on the hull material of the yacht. For motor and sailyachts from 12 to 60 metres Suitable for steel, aluminium...
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Boat bow and stern thruster (retractable) RMC Marine AB
A propeller transforms engine power into thrust, which in turn, overcomes the boat’s resistance and move it in the required direction, fully...
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Bow and stern thruster for boats (electric) TRAC DC ABT TRAC
TRAC Thrusters deliver more thrust per horsepower than any other thruster available. TRAC's twin counter-rotating propellers are more...
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Bow thruster for ships (electric) TRANSVERSE Jastram
Jastram transverse thrusters are made from high-grade certified materials and are designed individually according to the given installation conditions. Classification...
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Bow thruster for ships (tunnel type) Brunvoll
BRUNVOLL provides complete drive system packages for thrusters. Electric, Hydraulic or Diesel drives. Make of el-motor or, diesel engine to customer's choice. As a total...
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Bow thruster for ships (tunnel type) SMI-300 Ships Machinery International Inc.
SMI produces L-Drive thrusters in capacities from 250 to 1000 h.p. They are designed to accept diesel engine, electric or hydraulic...
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Bow thruster for ships (tunnel type) AMS Thrusters
A series of Transverse Tunnel Thrusters, designed with spiral beveled, right angle gears and suitable for electric, diesel engine or hydraulic drives. The versatile...
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Bow thruster for ships (tunnel type) Hundested Propulsion Systems
HUNDESTED thrusters are available in 4 models ranging from 25 HP to 1350 HP. It is most difficult to establish rigid rules concerning thrust capacity for a special vessel....
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Bow thruster for ships (tunnel type) ERIS PROPELLERS
ERC Bow Thruster ensures your boat’s manoeuvrability by supplying pushing power at portside and starboard directions. ERC Bow...
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Electric boat bow thruster 0-5 hp 55KGF 12V - 3.5 KW Craftsman Marine DB Innovation
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...
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Boat bow thruster (hydraulic, retractable) S SERIES OCEAN YACHT SYSTEMS
S Series hydraulic swing thrusters benefit from the same in-hub technology as our T Series thrusters, whilst allowing the thruster to fully retract leaving a fair hull with minimal drag. This compact...
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Bow thruster for ships (tunnel type) JT SERIES Omnithruster Inc
The JT Series, an industry favorite for over 30 years, engages all the elements of the OmniThruster principle in a robust, time tested package....
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Boat bow thruster (electric) DC PRO Wesmar
Extremely efficient electric motors eliminate the possibility of early thermal shutdown Fully proportional control for safe and gentle docking; or...
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Bow thruster for ships (tunnel type, variable pitch propeller) OCP Verhaar Omega BV
In principle, transverse thrusters or tunnel thrusters are used as auxiliary propulsion units. Depending on the design of the vessel, transverse thrusters are either installed in the bow or stern. Thruster with controllable pitch propellers. An OCP tunnel thruster is a tunnel thruster provided with a controllable pitch propeller. Controllable pitch propellers are normally driven at a constant and...
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Bow thruster for ships COMPACT JET VETH PROPULSION
Does the Compact-Jet sound interesting to you? The Compact-Jet provides excellent solution when Low noise levels are required (Emergency) propulsion is important 360 degrees...
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Bow thruster for ships (hydraulic) BR 270 Quantum Marine Engineering
A rotor steering hull unit is the energy transfer device in Quantum’s rotor tracking systems. The hull unit is installed in the bottom of the vessel’s bow with its main shaft...
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Boat bow thruster SS 230 - 2.5 HP Sideshift Inc.
The SS230 Bow Thruster is made specifically for boating vessels up to 30 feet in length Description: Bow Thruster...
