Aviation English
Aircraft Systems

What is high-pressure rotor speed?

high-pressure rotor speed Rotational speed of the high-pressure compressor or core in a jet engine, commonly indicated as N₂.

Source: ICAO Doc 9432, FAA PCG

How is “high-pressure rotor speed” Used in Practice?

Flight, monitor high-pressure rotor speed for N₂ stability during cruise and engine power changes.

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

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Frequently Asked Questions

What is high-pressure rotor speed?

Rotational speed of the high-pressure compressor or core in a jet engine, commonly indicated as N₂.

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