Aviation English
Advanced ATC

What is Trajectory-Based Operations?

Trajectory-Based Operations A concept where aircraft operations are planned, managed, and executed based on a shared, predicted four-dimensional trajectory, enhancing airspace capacity and efficiency (ICAO Doc 9971).

Source: ICAO Doc 9432, FAA PCG

How is “Trajectory-Based Operations” Used in Practice?

Trajectory-Based Operations allow more efficient use of airspace by managing flight paths in four dimensions.

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 Trajectory-Based Operations?

A concept where aircraft operations are planned, managed, and executed based on a shared, predicted four-dimensional trajectory, enhancing airspace capacity and efficiency (ICAO Doc 9971).

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