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Contra Rotating Propeller



Related Terms

SPECTACLE FRAME

A large casting extending outboard from the main hull for supporting for the ends of the propeller shafts in a multi-screw ship

STERN FRAME

Large casting attached to th after end of the keel, incorporating the rudder gudgeons and propeller post in single-screw ships

STERN TUBE

The watertight tube enclosing and supporting the propeller shaft on bearings

TAIL SHAFT

The ships propeller shaft

FOUL (OF PROPELLER)

A line, wire, net, etc., is wound round the propeller

SCREW

  1. propeller. 2. propeller-driven.

FIXED PROPELLER

A propeller mounted on a rigid shaft protruding from the hull of a vessel, usually driven by an inboard motor; steering must be done using a rudder. See also outboard motor and sterndrive.

INBOARD MOTOR

An engine mounted within the hull of a vessel, usually driving a fixed propeller by a shaft protruding through the stern. Generally used on larger vessels. See also stern drive and outboard motor.

PROPELLER

An arrangement which consists of hub and number of blades mounted on a rigid shaft protruding from the hull of a vessel, usually driven by an inboard motor.

BOW THRUSTERS

A propeller at the bow of the ship, used during maneuvering to provide transverse thrust

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