セミトリマラン型高速艇の平水中運動計測

抄録

It is important to know the motion characteristics of speed boat, because the resistance of the boat is affected by running posture remarkably. But it is difficult to carry out easily the full-scale sea trial of a small boat due to the limitation of the deck space for device installation on board. This paper is intended to investigate measuring system of full-scale sea trial on small speed boat. We carried out straight course running and turning tests of a trimaran high-speed fishing boat with water-jet propulsion and tried to measure running bow elevation, trim, speed and trajectory in the sea.