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Discussion :: GATE Aeronautical Engineering

  1. 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∞ = 1.22 kg/m3). The zero lift pitching moment coefficient of the airplane is Cwbmac = Cm0 = -0.06 and the location of airplane aerodynamic center from the wing leading edge is Xac = 0.25c. Here c is the chord length. 
    The airplane trim lift coefficient CL trim is
    2. A.
    0.502
    B.
    0.402
    C.
    0.302
    D.
    0.202

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    Answer : Option D

    Explanation :

    -NA-

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