Bow thruster / for ships / hydraulic / variable-pitch propeller
OCP series Verhaar Omega BV

Characteristics

  • Application domain:

    for ships

  • Type:

    bow

  • Power source:

    hydraulic

  • Other characteristics:

    variable-pitch propeller, tunnel type

Description

An OCP transverse thruster is a tunnel thruster provided with a controllable pitch propeller. Unlike fixed pitch propellers, controllable pitch propellers are normally driven at a constant and non-reversible shaft speed. OCP transverse thrusters are driven either electrically, hydraulically or by means of a diesel engine.
The thrust direction and thrust force are controlled hydraulically by adjusting the pitch of the propeller blades. Due to the fact that the propeller blades can be rotated clockwise or counter-clockwise, there is no need for a reverse gearbox when driven by a diesel engine. Thrusters with controllable pitch propellers ars mostly used in combination with a dynamic positioning system (DP), a computerised system to automatically maintain the vessel’s heading and position.

Due to the fact that the propeller blades can be rotated clockwise or counter-clockwise, there is no need for a reverse gearbox when driven by a diesel engine. Thrusters with controllable pitch propellers are mostly used in combination with a dynamic positioning system (DP), a computerised system to automatically maintain the vessel’s heading and position.

OCP transverse thrusters are used on all types of ships with sufficient draft to guarantee proper functioning. The distance measured from the waterline in the lightest seagoing conditions to the centre of the tunnel should be about one to one and half times the diameter of the tunnel. For shallow draft vessels we recommend our renowned Channel Thrusters.

Specific OCP thruster applications are:
Diving support vessels
Mobile offshore drilling units
Platform supply vessels
Shuttle & bunker tankers
Cable & pipe laying vessels

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