等时图是什么？

等时图 A chart used in flight planning to determine the point at which the flight time to two alternate aerodromes is equal, commonly applied for ETOPS and long-range operations.

Source: ICAO Doc 9432, FAA PCG

How is “等时图” Used in Practice?

根据等时图，ETP位于Shannon和Gander之间45北030西航路点上。

Certification Exam Relevance

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

Who Needs to Know This Term?

Pilots
Air Traffic Controllers
Cabin Crew

Learn “等时图” Free with Termify

Master 等时图 and 4,071+ professional terms with native pronunciation, IPA transcriptions and career quizzes. 100% free, forever.

Download Free for iOS

Frequently Asked Questions

等时图是什么？

A chart used in flight planning to determine the point at which the flight time to two alternate aerodromes is equal, commonly applied for ETOPS and long-range operations.

Where can I learn this term for free?

Termify is a 100% free professional English app that teaches 等时图 and 4,071+ other industry terms with native pronunciation, IPA transcriptions and career quizzes. Available on iOS in 23 languages. No subscription, no credit card required.

Last updated: March 09, 2026

等时图 是什么？