Abstract
To investigate the towing power for movement the ship broadside into her berth when wind is blowing off the pier, wind-tunnel with water tank experiment were carried out. The results are summarized as follows : (1) the coefficent of wind force is increased with the aspect ratio of the lateral projected area of the above-water part of the ship. (2) the effect of bottom clearance on the drag force caused by under-water part to move her broadside is very significant.