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Gyro and Compass Error Calculator

Calculate gyro error, compass error, true course, magnetic course, and compass course from deviation, variation, and azimuth observations.

Gyro and Compass Error Calculator

Enter Easterly values as positive and Westerly values as negative for Deviation and Variation. Leave a section blank if not needed.
Magnetic Compass Chain
Gyro Error from Azimuth Observation
gyro error compass error true course magnetic course compass course deviation variation celestial navigation
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