INSTRUMENTATION SPACECRAFT NAVIGATION & CONTROL

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gimbal

1. A device with two mutually perpendicular and intersecting axes of rotation on which an engine or other object may be mounted.


2. In a gyro, a support which provides the spin axis with a degree of freedom.


3. The rotation of a rocket's motor nozzle to control the direction of thrust and hence help steer a spacecraft; the nozzles of the Space Shuttle's Solid Rocket Boosters, for example, can gimbal up to 6°.

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