compass error


Also found in: Acronyms.

compass error

[′käm·pəs ‚er·ər]
(navigation)
The angle by which a compass direction differs from the true geographical direction; assuming that there is no lubber line error, it is the algebraic sum of the declination, variation, and motion errors.

compass error

The algebraic sum of deviation and variation. Easterly deviations and variations are given a “+” sign, while westerly deviation and variation are given a “−” sign.
References in periodicals archive ?
Momentary compass errors due to shock and sudden accelerations are eliminated by GyroTrac's three-axis rate gyro stabilization.
Compass errors that often cause many autopilot "steering problems" are dramatically reduced or totally eliminated with the GyroTrac.
It also features directional gyro mode, which minimizes magnetic compass errors.