Basic ATC

QNH

The altimeter subscale setting that causes the altimeter to read elevation above mean sea level at an airfield. Used primarily below transition altitude.

Quick answer: The altimeter subscale setting that causes the altimeter to read elevation above mean sea level at an airfield. Used primarily below transition altitude.

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Quick answer

The altimeter subscale setting that causes the altimeter to read elevation above mean sea level at an airfield. Used primarily below transition altitude.

Why it matters

QNH 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 QNH?

In this glossary, QNH refers to: The altimeter subscale setting that causes the altimeter to read elevation above mean sea level at an airfield. Used primarily below transition altitude.

How is QNH used in aviation?

In aviation communication, this term appears in contexts such as: "टॉवर: लुफ्थांसा 247, QNH 1016, रनवे 25R पर लैंडिंग की अनुमति है।"

Why does QNH matter in aviation?

QNH 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 QNH?

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

What category does QNH belong to?

In this glossary, QNH 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 altimeter subscale setting that causes the altimeter to read elevation above mean sea level at an airfield. Used primarily below transition altitude.

Operational example

Tower: Lufthansa 247, QNH 1016, cleared to land runway 25 right.

Localized term

QNH

Localized example

टॉवर: लुफ्थांसा 247, QNH 1016, रनवे 25R पर लैंडिंग की अनुमति है।

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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