Basic ATC

Base leg

The flight path at right angles to the landing runway off its approach end.

Quick answer: The flight path at right angles to the landing runway off its approach end.

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Languages

Quick answer

The flight path at right angles to the landing runway off its approach end.

Why it matters

Base leg matters because it supports clear communication in Basic ATC 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 Base leg?

In this glossary, Base leg refers to: The flight path at right angles to the landing runway off its approach end.

How is Base leg used in aviation?

In aviation communication, this term appears in contexts such as: "Pilot reports: 'Turning base leg, runway 15, gear down.'"

Why does Base leg matter in aviation?

Base leg matters because it supports clear communication in Basic ATC 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 Base leg?

Base leg is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does Base leg belong to?

In this glossary, Base leg is grouped under Basic ATC. 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

The flight path at right angles to the landing runway off its approach end.

Operational example

Pilot reports: 'Turning base leg, runway 15, gear down.'

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

Category

Basic ATC

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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