Question: A prop-driven aircraft is cruising with 90% propeller efficiency. If, range of aircraft is 7*106 ft, C=1.38*10-7 s-1 and L/D = 14 then what will be the fuel weight fraction for the cruise?
Options
A : 0.9216
B : 0.9261
C : 0.9289
D : 0.9365
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