Describe active rudder design and functioning.

21 Mar '17, 03:07

March 21, 2017, 3:07 a.m.
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Some vessels are fitted with an active rudder, also known as "azimuth thruster", which has a submerged motor or system of connected shafts, driving a fixed or controllable pitch propeller installed at the trailing edge. The rudder can be turned through 90ยบ with the engines stopped and the propeller will spin the ship about a vertical axis. An active rudder is of particular value when maneuvering at low speeds.

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21 Mar '17, 05:29

March 21, 2017, 5:29 a.m.
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