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Magnetic compass navigation.

Calculates true, magnetic and compass course by one of the given parameters taking into account the magnetic declination and compass deviation.

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PLANETCALC, Magnetic compass navigation.

Magnetic compass navigation.

Magnetic declination changes over time, here you should specify the year for which the magnetic declination was determined
Value of the yearly magnetic declination change
Date of calculation
Digits after the decimal point: 2
Values of magnetic compass deviation with equal intervals for every course from 0 to 360 degrees.
Compass direction
 
Magnetic direction
 
True direction
 
Creative Commons Attribution/Share-Alike License 3.0 (Unported) PLANETCALC, Magnetic compass navigation.

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