Aviation English
Flight Phase

What is Altimeter setting referenced to mean-sea-level pressure?

Altimeter setting referenced to mean-sea-level pressure The altimeter subscale setting so that the instrument indicates altitude above mean sea level. Also known as QNH.

Source: ICAO Doc 9432, FAA PCG

How is “Altimeter setting referenced to mean-sea-level pressure” Used in Practice?

Set altimeter to QNH 1009 for approach and landing.

Certification Exam Relevance

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

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related Aviation English Terms

QNHAltimeter setFinal approachFinal-approach speed

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Frequently Asked Questions

What is Altimeter setting referenced to mean-sea-level pressure?

The altimeter subscale setting so that the instrument indicates altitude above mean sea level. Also known as QNH.

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