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A bow or stern thruster is a motor facilitating the lateral movement a boat or a ship while maneuvering in port.
These devices can constitute an important aid to maneuvering either sailboats or powerboats longer than about 12 meters. Azimuth pod units and similar systems are often found on large ships. Thrusters are also useful on boats with propellers of significant pitch or with top hamper likely to hinder maneuvering in port.
Thrusters can be mounted in a tunnel that traverses the hull or in a retractable pod which drops vertically from the vessel's bottom when in use. The latter system maintains the hull's hydrodynamic qualities when the thruster is retracted, while the tunnel causes turbulence.
This section also includes other auxiliary propulsion including kites and hybrid systems.
Choice will depend on motor type, hydraulic or electric, as a function of vessel configuration and equipment. Large ships usually use an internal combustion engine. Thruster location is another factor: bow, stern or both. Vessel displacement and top hamper will determine minimum power needs.
- Excellent torque compared to pod drives
- Heavy
- High energy consumption
- Tunnels create turbulence
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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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Azimuth thruster for ships : Z-drive BAT - Z Berg Propulsion
The BERG Azimuth Thruster has been designed to provide unparalleled flexibility and in-service performance The BERG Azimuth Thruster System is a steerable thruster together with a custom-made controllable or fixed...
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Rudder thruster for ships SRP series Schottel
The SCHOTTEL Rudderpropeller is recognized worldwide as the classic marine propulsion system. Developed and built in 1950 by Josef Becker, founder of the present-day...
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Boat external stern thruster electric, ignition protected) SX 80 (4.4 KW @ 10.5 V) Sleipner Motor
Finally a functional stern thruster option for boats with twin stern drives! Side-Power now offers a complete external sternthuster assembly, specially designed for installation on boats with twin stern drives. It utilizes special cowls to enable...
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Azimuth thruster for ships : Z-drive FPP SERIES (735 -> 2206 KW) Niigata Power Systems
Z-Peller assures high grade performance and supports...
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Azimuth thruster for ships : L-drive Wärtsilä Corporation
Wärtsilä Compact Thrusters are reliable, maintenance friendly, and have low operational costs. They are...
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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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Azimuth thruster for ships : Z-drive (retractable) 20 -> 1000 KW Global Marine Engineering BV
The ten thruster sizes in the retractable range cover powers from 20 – 1000 kW and use components from the GME standard thruster range....
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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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AUV and ROV thruster DC SPE75 / SPE180 / SPE250 Sub-Atlantic
Sub-Atlantic's new direct drive range of brushless DC thrusters break new ground in thrust, low weight and enhanced reliability. They are currently available in four sizes, each incorporating Sub-Atlantic's unique StatorshieldTM technology. - High Reliability,...
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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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SMD offer a range of hydraulic thrusters available for subsea vehicle propulsion applications. Curvetech HT thrusters have been...
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AUV and ROV thruster Seamor Marine
Seamor ROV thruster modules and propellers are the power behind the Seamor ROV systems and allow for complete control...
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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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Azimuth thruster for ships : Z-drive (retractable) TALLERES BLANCHADELL, S.L.
From the transversal thruster of 200 HP we have developed a azimutal and retractile propeller with 380 º of swing angle, provided with a Kort...
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Azimuth thruster for ships : L-drive AMS Thrusters
A full Series of Azimuthing Propeller Drives ranging from 200 to 6000 Hp providing full 360 degree Capabilities. Aqua Manoeuvre Systems manufactures and Markets a unique...
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Azimuth thruster for ships : Voith Voith Turbo
Over 80 years ago this ship's propulsion system, the only one of its kind in the world was developed by Voith from an idea by the Austrian engineer Ernst Schneider. It allows thrust of any magnitude to be generated in any direction quickly, precisely and in a continuously...
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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) 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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Rudder thruster for ships Nautican
The Integrated Propulsion unit not only offers great gains in thrust and speed but dramatic increases in maneuverability. The tight turns and maneuvers are made possible with the high performance...
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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...
