Moody, Capt. Alton B. Formerly, Navigation Consultant, San Diego, California.
Taggart, Douglas Overlook Systems Technologies Inc., Vienna, Virginia.
Last reviewed:January 2020
- Principle of operation
- Marine compass
- Aircraft compass
- Related Primary Literature
- Additional Reading
A compass depending for its directive force upon the attraction of the Earth's magnetism on a magnet free to turn in any horizontal direction. A compass is an instrument used for determining horizontal direction.
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