Aviation English
Basic ATC

What is Slow?

Slow A phrase used to instruct the pilot to reduce speed.

Source: ICAO Doc 9432, FAA PCG

How is “Slow” Used in Practice?

ATC instructs: 'Slow to 180 knots to maintain separation.'

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

Reduce speedIncrease SpeedCruiseSpeed

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Frequently Asked Questions

What is Slow?

A phrase used to instruct the pilot to reduce speed.

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