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Which outcome results during rapid airfoil stall when the pressure gradient requirement breaks?

A)Increased parasite drag coefficient occurs
B)Maximum lift generation efficiency increases
C)Reynolds number exceeds design limit
D)Boundary layer maintains laminar flow

💡 Explanation

When rapid airfoil stall forces adverse pressure gradients beyond limits, flow separation increases drag because the adverse pressure gradient mechanism disrupts laminar flow; therefore parasite drag massively increases, rather than efficient laminar flow.

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