Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
Free testeasyground-effect
Ground effect is significant when the aircraft is within approximately:
A
One wingspan or less of the surface
B
5 wingspans of the surface
C
10 wingspans
D
Any altitude below 1,000 ft AGL
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See where you stand: 5 hard questions, instant score, every answer explained.