Aviation English
Long Haul

双発長距離運航とは?

双発長距離運航 Operation of twin-engine aircraft on routes where a diversion airport may be more than 60 minutes away at one-engine inoperative cruise speed, subject to special performance and dispatch requirements (ETOPS).

Source: ICAO Doc 9432, FAA PCG

How is “双発長距離運航” Used in Practice?

センター、ABN123 は DOGGO で双発長距離運航区間に入ったことを確認、燃料チェック完了、太平洋横断の位置通報を要求します。

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

双発長距離運航とは?

Operation of twin-engine aircraft on routes where a diversion airport may be more than 60 minutes away at one-engine inoperative cruise speed, subject to special performance and dispatch requirements (ETOPS).

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