Aviation English
Flight Phase

对地速度 是什么？

对地速度 The speed of an aircraft relative to the surface of the Earth, as measured by navigation systems.

Source: ICAO Doc 9432, FAA PCG

How is “对地速度” Used in Practice?

管制告知机组，由于强逆风，对地速度已降低。

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

真空速爬升终点阶梯爬升马赫数

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Frequently Asked Questions

对地速度 是什么？

The speed of an aircraft relative to the surface of the Earth, as measured by navigation systems.

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