What is the published downwind speed in the airport traffic pattern?

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Multiple Choice

What is the published downwind speed in the airport traffic pattern?

The downwind leg in the airport traffic pattern is flown at a stable, published airspeed to keep the pattern energy and spacing predictable. Flying 100 KIAS on the downwind gives enough margin above stall for safe and controlled turns to base and final, while staying slower than cruise so you can descend and align without overshooting. It also provides a standard reference so other traffic anticipates your speed in the pattern. Speeds around 90 KIAS are common at some airports, but 100 KIAS is the typical published value that balances safety, maneuverability, and consistency. Faster speeds (like 110 or 120 KIAS) can make turns with larger radii and harder spacing; slower speeds risk approaching stall and unstable configuration. Hence, 100 KIAS is the best choice.

The downwind leg in the airport traffic pattern is flown at a stable, published airspeed to keep the pattern energy and spacing predictable. Flying 100 KIAS on the downwind gives enough margin above stall for safe and controlled turns to base and final, while staying slower than cruise so you can descend and align without overshooting. It also provides a standard reference so other traffic anticipates your speed in the pattern. Speeds around 90 KIAS are common at some airports, but 100 KIAS is the typical published value that balances safety, maneuverability, and consistency. Faster speeds (like 110 or 120 KIAS) can make turns with larger radii and harder spacing; slower speeds risk approaching stall and unstable configuration. Hence, 100 KIAS is the best choice.

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