Aerospace Engineering > GATE 2018 > Airfoils and Wings
A NACA 0012 airfoil has a trailing edge flap. The airfoil is operating at an angle of attack of 5 degrees with un-deflected flap. If the flap is now deflected by 5 degrees downwards, the CL versus α curve
A
shifts right and slope increases.
B
shifts left and slope increases.
C
shifts left and slope stays the same.
D
shifts right and slope stays the same.

Correct : c

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