Describe active rudder design and functioning.
21 Mar '17, 07:07
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 90º 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.
21 Mar '17, 09:29