Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
Free testhardrhumb-vs-great-circle
On a direct Mercator chart, a great circle (other than the equator or a meridian) appears as a:
A
Straight line
B
Curve concave to the equator
C
Curve concave to the nearer pole
D
Circle
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See where you stand: 5 hard questions, instant score, every answer explained.