Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
Free testmediumalternate-requirements
An en-route alternate is required for:
A
all flights
B
VFR flights only
C
ETOPS flights to provide a diversion option en route
D
domestic flights only
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See where you stand: 5 hard questions, instant score, every answer explained.