Abstract
Radar is one of the most important equipment for the ship navigation. It is now used mainly for collision avoidance and location. Near future, however, will require Radar to be used for control and guidance of the ship, too, as in the present air traffic control. Then, the relation between the orientation of the ship and its RCS is necessary. Model measurement of the ship by the Ultrasonic Waves was made for the fundamental studies. Training ship "FUKAE MARU" was took up as the model of this experiment. The result is shown.
