高速曳航いけすの針路安定性能

抄録

The high-speed-towed fish preserve is a new type vessel about 15.6m long with a fish preserve capacity of 200m^3. The ship is supposed to be towed efficiently with a lighter draft (about 0.8m) at a maximum speed of about 10 knots (Fn=0.42). The course stability of the ship might be affected by the ship's speed, trims and towline's positions. It is important to clear the relation between ship's speed and course stability. In this paper, we present the course stability characteristics of the towed fish preserve in high-speed range. We discuss the effect of the trims and towline's positions. We conducted the model experiment tests using l/25^<th> scale(0.624m) models in a circular tank. Also we performed the simulation studies to investigate the course stability for our models. The results of our experiments and simulation studies are described and discussed.