blank compass deviation card template
Magnetic deviation - Wikipedia
This article is about compass error due to local magnetic fields. For variation of the Earth's magnetic field from true North, see Magnetic Declination.
Learn more
(PDF) HANDBOOK OF MAGNETIC COMPASS ADJUSTMENT
1. Adjust the heeling magnet, while the ship is rolling, on north and south magnetic heading until the oscillations of the compass card have been reduced to an ...
Learn more
Section 1. Navigation Aids - Federal Aviation Administration
No correction other than the correction card figures supplied by the manufacturer should be applied in making these VOR receiver checks.
Learn more