Host: The Society of Naval Architects of Japan
Co-host: The Kansai Society of Naval Architects, Japan, The West-Japan Society of Naval Architects
Pages 12
Measurements of running attitude (;rise, trim angle and heel angle) and 3-components of hydrodynamic forces (;drag force, sway force and yaw moment) are carried out for 1m-sized models by an obliquely towing test. The ratios of length to breadth of the models are L/B=6.0, 4.5 and 3.0, and their range of Fn is from 0.3 to 1.8. The results demonstrate that the heel angle is drastically changed by drift angle, Fn and L/B. The change in running attitude causes significant effects on yaw moment. It is also found that rise and trim angle are significantly affected by drift angle. The results suggest that it is necessary for predicting maneuverability to take the effects into consideration.
