Electrically driven gyroscopes for aircraft

GYROSCOPIC instruments are given a place of prominence on the instrument panels of military and commercial aircraft. They are among the “most used” of all the instruments and are necessary for blind flight since they serve as stable references in space when natural objects are not visible. This group consists of a gyro horizon, showing the attitude of the aircraft — that is, whether or not it is in level flight; a directional gyro, which shows departure from course; and a bank and turn indicator, indicating rate of turn.