Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
Free testmediumcost-optimization
A Cost Index of 0 results in flying at:
A
maximum speed (VMO/MMO)
B
minimum time speed
C
minimum fuel speed (MRC or better)
D
long-range cruise speed exactly
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See where you stand: 5 hard questions, instant score, every answer explained.