Precession

Definitions

• The tilting or turning of a gyro in response to deflective forces causing slow drifting and erroneous indications in gyroscopic instruments.
• The characteristic of a gyroscope that causes an applied force to be felt, not at the point of application, but 90° from that point in the direction of rotation.

References

• Airplane Flying Handbook, Federal Aviation Administration, 2021
• Instrument Flying Handbook, Federal Aviation Administration, 2014