Ship Magnetism and the Magnetic Compass |
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Common terms and phrases
aft line aft magnet ashore athwartship magnet RED bar magnet binnacle blue pole cause Chapter compass card compass course compass needle compass position compensated component corrector magnets deflecting needle deflector reading Deviation due deviation on 090°C distance dynes earth's magnetic field effect English Channel example F.A. magnet RED Flinder's Bar forward force H fore and aft heeling error horizontal field strength horizontal force horizontal soft iron induced magnetism Kelvin Deflector latitude lubber line magnet placed magnetic bearing Magnetic course magnetic equator magnetic moment magnetic needle magnets to correct Max E dev maximum deviation N-S axis neutral course oersted oscillations perm place where H pole strength relative directive rider S.I. spheres ship upright ship's head ship's multiplier ship's permanent magnetism slewed soft iron spheres starboard transverse soft iron V.F. Instrument value of coefficient vertical force vertical magnets vertical soft iron vibrations