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等时点

A calculated position along the planned route where the time required to continue to a suitable alternate aerodrome is the same as the time required to return to a different suitable alternate aerodrome, considering wind and performance.

Quick answer: A calculated position along the planned route where the time required to continue to a suitable alternate aerodrome is the same as the time required to return to a different suitable alternate aerodrome, considering wind and performance.

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Quick answer

A calculated position along the planned route where the time required to continue to a suitable alternate aerodrome is the same as the time required to return to a different suitable alternate aerodrome, considering wind and performance.

Why it matters

等时点 matters because it supports clear communication in Navigation contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.

Editorial context

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Questions and answers

Questions and answers

What is 等时点?

In this glossary, 等时点 refers to: A calculated position along the planned route where the time required to continue to a suitable alternate aerodrome is the same as the time required to return to a different suitable alternate aerodrome, considering wind and performance.

How is 等时点 used in aviation?

In aviation communication, this term appears in contexts such as: "我们刚刚通过等时点；目的地和备降机场现在在飞行时间上等距。"

Why does 等时点 matter in aviation?

等时点 matters because it supports clear communication in Navigation contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.

Who uses 等时点?

等时点 is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does 等时点 belong to?

In this glossary, 等时点 is grouped under Navigation. Related pages in this category explain adjacent procedures, commands and operational concepts.

Where does this definition come from?

This definition is sourced from ICAO Doc 9432, FAA PCG and published by Protermify Aviation as a static aviation reference page.

Definition

A calculated position along the planned route where the time required to continue to a suitable alternate aerodrome is the same as the time required to return to a different suitable alternate aerodrome, considering wind and performance.

Operational example

We have just passed the Equal Time Point; destination and alternate airports are now equidistant in flight time.

Localized term

等时点

Localized example

我们刚刚通过等时点；目的地和备降机场现在在飞行时间上等距。

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

Category

Navigation

Exam relevance

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

Target audience

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related terms

Use the related links below to continue through connected aviation terminology.

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