Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
Free testhardlift
Circulation theory (Kutta-Joukowski) states that lift per unit span equals:
A
L = CL × ½ρV² × S
B
L' = ρ × V × Γ (density × velocity × circulation)
C
L = m × g
D
L = F × d
Checking member access
One moment while we confirm your plan so paid members never see checkout by mistake.
Checking member access before showing upgrade options
Keep practising
See where you stand: 5 hard questions, instant score, every answer explained.