Aviation English
Basic ATC

What is Speed?

Speed The rate at which an aircraft is moving through the air, usually expressed in knots.

Source: ICAO Doc 9432, FAA PCG

How is “Speed” Used in Practice?

Pilot reports: 'Maintaining speed 250 knots, clear of traffic.'

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

CruiseWindsReduce speedIncrease Speed

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Frequently Asked Questions

What is Speed?

The rate at which an aircraft is moving through the air, usually expressed in knots.

Where can I learn this term for free?

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