The Pleuger rudder is a power assisted ship's rudder. It creates a flow of water in the direction the rudder points powered by an auxiliary electric motor. This aids manoeuverability at low speeds greatly, since it operates on a similar principle to a thruster.

A ducted propeller is mounted as an integral part of the rudder and is fixed to it. The duct is a Kort nozzle and enables the propellor to develop more thrust than an unducted propeller.

The Pleuger rudder is necessarily mounted in the flow from the main engine's propeller in a ship with an odd number of propellors. If the Pleuger and the main engine are run at the same time the Pleuger can often be torn away^*. The thrust produced by the Pleuger rudder is sufficient to power the ship in slow speed manoeuvres when the force required to move the vessel is relatively small.

See also

• Kitchen rudder
• Kort nozzle
• rudder

External links

• m.s Elizabeth Bowater which is fitted with a Pleuger rudder
• Powering of Hulls
• Marine engineering -- Stearing Gear -- Rudder types

Marine propulsion | Fluid dynamics