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Which outcome occurs in an aircraft wing when exceeding critical speed?

A)Boundary layer transitions to turbulence
B)Lift coefficient remains perfectly constant
C)Pressure gradient remains wholly laminar
D)Drag coefficient decreases exponentially

💡 Explanation

Flow undergoes transition to turbulence at the wing's surface because of the aerodynamic pressure exceeding a threshold; boundary layer separation results from increased momentum exchange caused by turbulent eddies. Therefore the boundary layer goes turbulent rather than remaining laminar, beyond stall.

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