Modern Coastal Piloting
Not only will you learn the traditional methods of coastal piloting, compass use, speed/time/distance equations, deviation and variation, bow and beam bearings, running fixes, lat and longitude, navigation aids and also the modern methods of postion determination, radar and T.D.'s.
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Deviation is how a compass is affected by other objects (metals, magnets, etc.). Non-ferrous materials will not affect it. Variations are caused by the earth's surfaces. "Can dead men vote twice?" The film shows how a true course leads to a compass course. Deduced or dead reckoning is derived from course and speed. Speed, time, and distance are inter-related. Waypoints are places on a course line. Dead reckoning is used when there are no landmarks. Bearing lines allow fixing your position. LORAN is used to get a bearing. Single object bearings can get a position (bow and beam). Other methods are described with examples. The explain the Rules of the Road for meeting, crossing, or overtaking.
The two speakers lack the tan that comes from many hours in the outdoors.