Aviation English
Long Haul

双发延程运行 是什么?

双发延程运行 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 “双发延程运行” Used in Practice?

中心台,ABN123 在 DOGGO 进入双发延程运行区段,燃油检查完毕,请求太平洋跨越的位置信息。

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

双发延程运行 是什么?

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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