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Bow and tunnel thrusters
are primarily used for docking, slow speed maneuvering, emergency
steering and station keeping at zero or slow forward speed. They
are installed transversely in the bow or the stern of a vessel.
Electric drive bow thrusters with fixed pitch
propeller are available from 250 to 10,750 HP (8.0MW).
They are designed for variable speed electric motor input, either
DC with SCR control systems or AC with variable frequency drives.
Most are used in dynamic positioning applications. Read
Engine driven bow thrusters for direct engine
drive are available in the range of 250 to 3,000 HP. The
engine must be provided with a marine gear with a reduction ratio
to match the input speed. A cardan shaft connects between
the output shaft of the marine gear and the input shaft.
Thrustmaster offers a great line of
bow thrusters. They are used all over the world, many
of them in dynamic positioning applications. Many models have
ABS Type Approval. Thrustmaster hydraulic bow thrusters are available from
35hp to 2,000hp. Geared Bow thrusters for electric or direct
engine drive are available from 250 to 3,000 HP. Read More