A rate gyro is a type of gyroscope, which rather than indicating direction, indicates the rate of change of angle with time. If a gyro has only one gimbal ring, with consequently only one plane of freedom, it can be adapted for use as a rate gyro to measure a rate of angular movement.
Below is a 1950's MIM-3 Nike Ajax guidance unit where three such rate gyros were used (Image from Richard Parrish):
The Western Electric Gyroscope GS19720 in detail:
More detailed pictures of the gyroscope to come...
Last update: 03.03.2024
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