- Magnetic bearings are classified according to their accuracy. Class A bearings have an accuracy of better than +/–2°, Class B bearings have accuracy more than +/–2° and up to +/–5°, Class C where the accuracy is more than +/–5° and up to and including +/–10°, and Class D where the bearing accuracies are higher than +/–10°.
Aviation dictionary. 2014.
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