手動操舵中のヨーイングの性質(日本航海学会第28回講演会)

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The author investigates in this paper into the ships yawing, employing the records of an actual ship steered by some quatermasters, from navigators' point of view, especially about the relation between the magnitude of amplitude and the disturbing forces such as gusts, winds, and waves, and another several point of ships yawing. And the following results are obtaind: (1) The relation between the wind forces and the occurrence rate of yaw-angle increased above 3.5 degrees during the navigation varied complicatedly, but the more waves become higher the more rate increased nearly proportional. (2) The relation between the ships yawing oscillations in an hour and the frequency of occurrence of yaw-angle increased above 3.5 degrees varied higher inverse proportional with some variation. (3) When the yaw-angle increased above 3.5 degrees the yawing get some consecutiveness. (4) The ships yawing that yaw-angle increased above 8〜9 degrees immediately decaying to her apointed course, but the another smaller ones occupy much oscillations on account of decaying and sometimes, those diverge from the course.
社団法人日本航海学会の論文
1962-12-25