If a hydraulic pump and associated tank are already installed on board, then, in most cases, this assembly can be used for driving the bow thruster also.
Some marine engine manufacturers, e.g. VETUS DEUTZ, supply as standard a special P.T.O. (Power Take Off) connection, which greatly simplifies the installation of the hydraulic pump. In addition to the pump and the hydraulic storage tank, VETUS can also supply the required load sensing and control devices, as well as the high-pressure hydraulic hoses, complete with end fittings. All these hydraulic bow thrusters may be fitted to GRP steel or aluminum tunnels or used as a stern thruster using the appropriate installation kit.
Install thrusters below the waterline in the bow or stern of any hull for advanced maneuverability in tight spaces. Thrusters alleviate the need for extra crew hands and line handling around the dock.
Hydraulic models offer quiet, effective thrust with unlimited run time as opposed to electric models. They also have a more compact design. They require the support of a hydraulic tank, hydraulic pump and lines.
Hydraulic thrusters are excellent for boats that already utilize hydraulic systems elsewhere onboard. For boats not already utilizing hydraulic components onboard, installation of a supporting hydraulic system will be required.