Aviation English
Fueling Deicing

Was ist Raureif?

Raureif A rough, white, opaque ice that forms rapidly from supercooled water droplets freezing on aircraft surfaces, reducing aerodynamic performance.

Source: ICAO Doc 9432, FAA PCG

How is “Raureif” Used in Practice?

Tower, Flugzeug meldet Raureifbildung an den Propellerblättern beim Steigflug durch Wolkenschichten.

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

Was ist Raureif?

A rough, white, opaque ice that forms rapidly from supercooled water droplets freezing on aircraft surfaces, reducing aerodynamic performance.

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