Aviation English
Flight Phase

巡航降下とは？

巡航降下 A gradual descent initiated by the pilot or ATC from cruising altitude, often to optimize fuel burn or prepare for arrival, not directly tied to an approach clearance.

Source: ICAO Doc 9432, FAA PCG

How is “巡航降下” Used in Practice?

ATC: ルフトハンザ211、巡航降下承認済み、FL240通過時に報告してください。

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

巡航トップ・オブ・クライム高度計設定エナジーマネジメント

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Frequently Asked Questions

巡航降下とは？

A gradual descent initiated by the pilot or ATC from cruising altitude, often to optimize fuel burn or prepare for arrival, not directly tied to an approach clearance.

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