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SESK: Stuff Everyone Should Know · sesk.info/sport-103-stall-speed

What is the maximum power-off stall speed for a powered ultralight?

24 knots calibrated airspeed.

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  1. 24 knots ✔
  2. 35 knots
  3. 45 knots

Why: A powered ultralight must have a power-off stall speed that does not exceed 24 knots calibrated airspeed. A low stall speed means it can fly slowly and land gently.

Huh, didn't know that: The 24 knot stall limit and the 55 knot top speed limit are both measured in calibrated airspeed.

The dad joke
What did the slow ultralight say at the stall? 'I'm not stalling, I'm just taking it easy.'
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References

Answer: 24 knots. A powered ultralight must have a power-off stall speed that does not exceed 24 knots calibrated airspeed. A low stall speed means it can fly slowly and land gently.

  1. 14 CFR Part 103, Ultralight Vehicles (eCFR) www.ecfr.gov/api/renderer/v1/content/enhanced/current/title-14?part=103
    Has a power-off stall speed which does not exceed 24 knots calibrated airspeed.
    Checked 2026-10-11.

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