Flight Phase

巡航降下

A gradual descent initiated by the pilot or ATC from cruising altitude, often to optimize fuel burn or prepare for arrival, not directly tied to an approach clearance.

Quick answer: A gradual descent initiated by the pilot or ATC from cruising altitude, often to optimize fuel burn or prepare for arrival, not directly tied to an approach clearance.

This term page is part of the Protermify Aviation glossary and is published as static HTML for fast indexing and clear language coverage.

Languages

Quick answer

A gradual descent initiated by the pilot or ATC from cruising altitude, often to optimize fuel burn or prepare for arrival, not directly tied to an approach clearance.

Why it matters

巡航降下 matters because it supports clear communication in Flight Phase 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

This page is rendered as static HTML from source-backed terminology data so search engines and AI systems can parse the content without client-side code.

Questions and answers

Questions and answers

What is 巡航降下?

In this glossary, 巡航降下 refers to: A gradual descent initiated by the pilot or ATC from cruising altitude, often to optimize fuel burn or prepare for arrival, not directly tied to an approach clearance.

How is 巡航降下 used in aviation?

In aviation communication, this term appears in contexts such as: "ATC: ルフトハンザ211、巡航降下承認済み、FL240通過時に報告してください。"

Why does 巡航降下 matter in aviation?

巡航降下 matters because it supports clear communication in Flight Phase 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 巡航降下?

巡航降下 is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does 巡航降下 belong to?

In this glossary, 巡航降下 is grouped under Flight Phase. 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 gradual descent initiated by the pilot or ATC from cruising altitude, often to optimize fuel burn or prepare for arrival, not directly tied to an approach clearance.

Operational example

ATC: Lufthansa 211, cruise descent approved, report passing flight level two four zero.

Localized term

巡航降下

Localized example

ATC: ルフトハンザ211、巡航降下承認済み、FL240通過時に報告してください。

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

Category

Flight Phase

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.

Back to glossary