Aviation English
Aircraft Systems

What is constant-speed drive?

constant-speed drive A transmission device that converts variable engine speed to a constant speed for generator operation.

Source: ICAO Doc 9432, FAA PCG

How is “constant-speed drive” Used in Practice?

Constant-speed drive fault on generator one, generator will be disconnected for safety.

Certification Exam Relevance

ICAO Level 4ICAO Level 5ICAO Level 6EASA FCL.055

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related Aviation English Terms

integrated drive generatorgenerator control unitautothrottle systemengine instrument display

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Frequently Asked Questions

What is constant-speed drive?

A transmission device that converts variable engine speed to a constant speed for generator operation.

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