| 摘要 |
A provisional moving center (g 1 , g 2 ) is set at a predetermined position in a neighborhood of an actual moving center (G) of a hull (2), a sample thrust (P) having a predetermined magnitude and direction is applied to the provisional moving center (g 1 , g 2 ) by driving the outboard motor (3a, 3b), a magnitude and direction of an angular acceleration generated in the hull (2) by application of the sample thrust (P) is detected, the magnitude of the angular acceleration is compared with a predetermined threshold value, and a position of the provisional moving center (g 2 , g 3 ) is changed and set so that the angular acceleration may converge in the threshold value, when the angular acceleration is larger than the threshold value. |
