Small Boat Navigation

ISBN: 9781332196838 出版年：2016 页码：145 Lieut Com Sterling W Sterling Forgotten Books

Piloting is determining the position of a vessel by observations on known visible charted objects, or by soundings of the depth of the sea. Dead Reckoning, or the method of sailings, is a means of deducing a vessel's position from the direction and distance sailed from a previous known position. This method involves the rules of plane trigonometry.