實習船 海林號의 GPS에 의한 旋回圈 測定

Measuarement of Turning Circle of M/V HAERIM by the GPS

1. I have carried out rudder angle trial of M/V HAERIM The result obtatined were as follow. 2. When the rudder angle is 30˚, 15˚, 5˚, commonly, It's preferable left handed turn to right handed turn at the condition of speed Full engine, Half engine, Slow engine. 3. At the condition of Full speed engine, The turning circle has been appeared small comparatively than the condition of Trial. 4. When in the 30˚, 15˚, Turning circle of DA, DT has been appeared largely, on the contrast, When in 5˚, The value was dropped remarkably, It is preferable to meet wi th sufficient allowance in the time of small al teration of course avoiding other vessel.