Aviation English
Long Haul

Was ist Biologische Uhr?

Biologische Uhr The natural internal time-keeping system that regulates physiological activities, directly affecting crew alertness and fatigue during time zone changes and long-haul operations.

Source: ICAO Doc 9432, FAA PCG

How is “Biologische Uhr” Used in Practice?

Dienstzeiten der Crew werden unter Berücksichtigung der biologischen Uhr festgelegt, um Ermüdung zu minimieren und die Wachsamkeit zu maximieren.

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 Biologische Uhr?

The natural internal time-keeping system that regulates physiological activities, directly affecting crew alertness and fatigue during time zone changes and long-haul operations.

Where can I learn this term for free?

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