Facebook Pixel

Thruster systems

Thruster systems

Vetus Bow and stern thrusters - docking made easy!

Thrusters can take the stress out of docking by giving you sideways control of the movement and position of the bow and the stern of your boat. They work by rotating a propeller (at very high speed and power) in a submerged tube or a housing mounted athwartships (across the boat), and located near the bow and/or the stern.

A s...

Vetus Bow and stern thrusters - docking made easy!

Thrusters can take the stress out of docking by giving you sideways control of the movement and position of the bow and the stern of your boat. They work by rotating a propeller (at very high speed and power) in a submerged tube or a housing mounted athwartships (across the boat), and located near the bow and/or the stern.

A simple control panel (usually a joystick) allows you to push the bow and/or stern sideways, to resist the force of a crosswind and cross current, while you are docking or manoeuvring in close quarters (getting in or out of the marina).

What thrusters will do for you and your boat

  • Allow you to maintain control while docking and manoeuvering, even into a very tight slip in a crowded marina
  • Allow a single crew member to pick up and secure the dock lines while you move the boat sideways from one piling or mooring
    buoy to the next - slowly, carefully, quietly and with very little pushing, pulling or shouting.
  • Allow you and your one-person crew to handle and control a much bigger and more comfortable boat
  • Avoid the possibility of hitting another boat, a dock or a piling, that might cause expensive damage to your boat, another boat or
    the marina facilities
  • Minimize the risk of a crew member being injured during docking manoeuvers in difficult conditions
  • Allow you to handle your boat with the same expertise, grace and panache as the other captains whose boats are equipped with
    VETUS thrusters
  • Make boating more fun
    VETUS offers a solution for each and every boat. From small to big boats, with a shallow or deep draft, slow or fast, electrically or hydraulically driven. New products are continuously introduced and existing products are frequently updated, so please v´check our website for recent news and development

Let us help finding the correct size of thruster:

After you have selected your type of thruster we can help you calculate the required thrust force for your boat, call us or send us an email at support@vetusonoine.com. The force needed is determined by the following factors.

Vetus Thruster calculation

The influence of the wind

The force applied to the boat by the wind is determined by the wind speed, the wind angle and the lateral wind draft area of the
boat. If the wind blows at right angles to the boat, this wind pressure is most difficult to counter. However, this is seldom the case
and as most boat superstructures are fairly streamlined, a reduction factor of 0.75 is generally applied, when calculating the wind
pressure.
To calculate this we need the area of the the boat seen from the side (wind area) in m2.

The turning moment

The turning moment is calculated by multiplying the wind force by the distance (A) between the centre of effort of the wind and
the point of rotation of the boat. In order to simplify this somewhat: for the vast majority of boats a rule of thumb may be applied
that the turning moment is calculated by multiplying the wind force by half of the boat’s overall length.
We need the distance in waterline from aft till center of tunnel to calculate required force

The thrust force

It is the thrust force which is the true measure of a bow thruster’s usefulness and not the output of the electric or hydraulic motor
in kW or HP. The nominal thrust force is a combination of the motor power, the shape of the propeller and the efficiency losses
inside the tunnel. VETUS electrical bow thrusters have a very high thrust of between 17 and 23 kgf per kW motor power. The
required thrust force to counter the effects of the wind is now calculated by dividing the turning moment by the distance (B)
between the centre of the bow thruster tunnel and the pivot point of the boat.

Note: The further forward the tunnel can be positioned, the greater effect the thruster will have.

DC BOW AND STERN THRUSTERS
The original recreational boat thruster, developed and refined over 30 years of hard work on boats ranging from 15 to 90 feet.

  • On-off, port-starboard controls.
  • Simple and intuitive to operate
  • Lowest cost, simplest installation, easy retrofit
  • A range of eleven thrusters, with thrust outputs ranging from 25 kgf to 285 kgf
  • Battery powered at 12, 24 and 48 Volts
  • Run time: 2-4 minutes continuous or combined in one hour
  • Motor technology: direct current, series wound with carbon brushes

BOW PRO PROPORTIONAL BRUSHLESS BOW AND -STERN THRUSTERS

The leading edge of thruster development, but utilizing well proven
components and technology. For boats ranging from 18 to 90 feet.

  • Resistant to damage from misuse and overuse, with heat sensing and selfregulating electronics
  • Proportional joysticks allow you to vary the effective power output of the thruster for more boat control.
  • Simple and intuitive to operate, with a small self learning curve on adjusting the thrust
  • A slightly different installation process with the added benefits of CAN bus bi-directional control
  • A range of more than 20 thrusters, from 30 kgf to 300 kgf
  • Battery powered at 12, 24 and 48 Volts
  • Run time: 10 minutes (minimum) at full power with longer runtimes at reduced power, ultimately limited by battery capacity and recharge rate
  • Motor technology: efficient, sealed, brushless induction motors giving maximum run time on a charged battery bank

RIM DRIVE PROPORTIONAL PERMANENT MAGNET THRUSTERS

If you treasure peace, perfect peace, on gentle waters, or need to move with stealth on troubled waters, the world’s quietest thrusters are for you. For boats ranging from 40 to 65 feet.

  • Proportional joysticks allow you to vary the effective power output of the thruster for more boat control.
  • Resistant to damage from misuse and overuse, with heat sensing and selfregulating electronics
  • Simple and intuitive to operate, with a small learning curve on adjusting the thrust
  • A slightly different installation process as a standard DC thruster, however also with the added benefits of CAN bus controls
  • A range of two thrusters with power outputs of 125 kgf and 160 kgf
  • Battery powered at 48 Volts
  • Runtime: 10 minutes (minimum) at full power with longer runtime at reduced power, on minimum recommended battery bank, but easily extended by increasing battery capacity

EXTENDED RUNTIME DC BOW AND STERN THRUSTERS
An extension of the basic, time-tested DC thruster, developed for use in integrated boat control systems requiring long runtimes at high power outputs. For boats ranging from 36 to 75 feet.

  • On-off, port-starboard controls
  • Simple and intuitive to operate
  • Simple installation, easy retrofit
  • 5 models with power outputs ranging from 95 kgf to 220 kgf
  • Battery powered at 12 and 24 Volts
  • Run time 7-10 minutes continuous or combined in one hour.
  • Motor technology: direct current, series wound with carbon brushes

IGNITION PROTECTED DC BOW AND STERN THRUSTERS
An extension of the basic, time-tested DC thruster, but the only electric thruster type suitable for use in compartments containing gasoline / petrol engines, tanks and fuel lines, propane tanks and lines, jet skis/ pwcs or outboard engines and their fuel tanks, as the motor is encased to prevent explosive fumes reaching its interior.
For boats ranging from 16 to 60 feet.

  • On-off, port-starboard controls
  • Simple and intuitive to operate
  • Simple installation (regular + encasement), easy retrofit
  • 10 models with power outputs ranging from 25 kgf to 160 kgf
  • Battery powered at 12 and 24 Volts
  • Run times 2-4 minutes continuous or combined in one hour
  • Motor technology: direct current, series wound with carbon brushes

RETRACTABLE DC BOW AND STERN THRUSTERS
The thruster to select when your boat’s shallow draft does not allow a conventional bow tunnel or stern tube to be adequately submerged. A VETUS DC thruster mounted on a swing mechanism that extends below the boat prior to operation and retracts back into the hull after use.
For boats ranging from 25 to 60 feet.

  • On-off, port-starboard controls with automatic deployment and retraction
  • Simple and intuitive to operate
  • A unique installation process requiring careful measurement, cutting and fitting in accordance with´the detailed instructions provided
  • 6 models with power outputs ranging from 55 kgf to 160 kgf
  • Battery powered at 12 and 24 Volts
  • Run times 2-4 minutes continuous or combined in one hour
  • Motor technology: direct current, series wound with carbon brushes

HYDRAULIC THRUSTERS
Thrust whenever you need it, for as long as you need it -, is the defining characteristic of these powerful machines and their systems. Built with industrial grade components and ideal for commercial and recreational heavy-duty applications. For vessels ranging from 35 to 120 feet.

  • Controls can be on-off/port-starboard, two stage with half/full power, proportional or a computer managing station-holding or integrated boat-control
  • Made for very hard work - long lived, reliable, accustomed to abuse and highly resistant to damage
  • Specialist installation required due to complex components
  • 7 models with power outputs ranging from 55 kgf to 550 kgf
  • Powered by a prime mover engine(s)
  • Continuous runtime
  • Motor technology: hydraulic