Aviation English
Flight Phase

対地速度とは？

対地速度 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 “対地速度” Used in Practice?

ATCは乗員に対地速度が強い向かい風のため減少したと伝えた。

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

真対気速度トップ・オブ・クライムステップクライムマッハ数

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Frequently Asked Questions

対地速度とは？

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

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