Boat bow and stern thruster Willdo
JET

The Willdo Jet Thrusters are driven hydraulically (not electrically) by the propulsion engine. A hydraulic pump, which is fitted onto the propulsion engine, drives an hydraulic motor, located in the pump housing, which in turn activates a water pump, that sucks in the water through an opening in the bottom of the boat and presses it wih great force, via hoses with an inside diameter of no more than 45mm, to the nozzles in the sides of the boat.

Each WillDo electrically driven Jet Thruster consists of a unidirectional DC motor (standard equipped with a thermal protector!), driving a centrifugal impeller. As this impeller is immersed in water it starts to prime the surface water and build up the pressure. The water flows through the flexible hoses via the diverter valves to the outlet openings, which have a diameter of ø32mm (up to 50kgf) or ø46 for the bigger units. These openings must be positioned into either bow or stern (Single) or in both (Combi). The water intake (available in stainless steel 316 or aluminium) has a diameter of 90mm and is equipped with a grid to prevent larger objects from getting into the system. Smaller debris that floats in the water and can pass through the grid, will not cause any damage to pump and valve.

More specifications...