Artificial Horizon

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Artificial Horizon

1. A gyro-operated flight instrument that shows the pitching and banking attitudes of an aircraft or spacecraft with respect to a reference line horizon, within limited degrees of movement, by means of the relative position of lines or marks on the face of the instrument representing the aircraft and the horizon. See attitude gyro.
2. A device, such as a spirit level, pendulum, etc., that establishes a horizontal reference in a navigation instrument.

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use