抄録
Controllable Pitch Propeller (CPP) is very useful for avoiding collisions in a restricted area like harbour. Because the changing time of propeller pitch is shorter than changing time of engine motion, the ship with CPP can stop in quite short distance. So, full-scale experiments have been performed to investigate how to move the ships equipped with CPP under the Reverse Stopping on turning rate. The obtained results are summarized as follows : (1) The direction of moving is decided by the initial turning rate. (2) Head reach shows the maximum value near 0 degree of rudder angle and reduces when rudder angle increases. (3) The value and distribution of side reach are various about each ship.
