Aviation English
Aircraft Systems

What is engine pressure ratio?

engine pressure ratio Ratio of total pressure at the engine exhaust to that at the engine inlet, used as a primary engine thrust indicator.

Source: ICAO Doc 9432, FAA PCG

How is “engine pressure ratio” Used in Practice?

Engine pressure ratio is below normal limits, recommend checking for possible thrust or sensor issues.

Certification Exam Relevance

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

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

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Frequently Asked Questions

What is engine pressure ratio?

Ratio of total pressure at the engine exhaust to that at the engine inlet, used as a primary engine thrust indicator.

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