GATE Aeronautical Engineering - GATE 2017-2018 Questions and Answers

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A wing-body alone configuration airplane with a wing loading of W/S = 1000 N/m² is flying in cruise condition at a speed V = 90m/s at sea-level (air density at sea-level P_âˆž = 1.22 kg/m³). The zero lift pitching moment coefficient of the airplane is C^wb_mac = C_m0 = -0.06 and the location of airplane aerodynamic center from the wing leading edge is X_ac = 0.25c. Here c is the chord length.

Distance of center of gravity of the aircraft (X_CG) from the wing leading edge is

0.447c

-0.547c

0.547c

-0.25c

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