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トップ・オブ・ディセントとは?

トップ・オブ・ディセント The calculated point along a flight path where the aircraft begins its planned descent from cruise altitude toward the destination, as programmed in the FMS.

Source: ICAO Doc 9432, FAA PCG

How is “トップ・オブ・ディセント” Used in Practice?

トップ・オブ・ディセント到達時、降下許可の準備ができていることを報告してください。

Certification Exam Relevance

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

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

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Frequently Asked Questions

トップ・オブ・ディセントとは?

The calculated point along a flight path where the aircraft begins its planned descent from cruise altitude toward the destination, as programmed in the FMS.

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