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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Articles that describe this calculator
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
Values of magnetic compass deviation with equal intervals for every course from 0 to 360 degrees.
Digits after the decimal point: 2
Compass direction
282
Magnetic direction
280
True direction
273.04
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Deviation table
| Course | Deviation | Course | Deviation |
|---|---|---|---|
| 0 | 0 | 180 | 0 |
| 23 | 2E | 203 | 0 |
| 45 | 2E | 225 | 0 |
| 68 | 2E | 248 | 2W |
| 90 | 0 | 270 | 2W |
| 113 | 0 | 293 | 2W |
| 135 | 0 | 315 | 0 |
| 158 | 0 | 338 | 0 |
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