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Which outcome results when exceeding Reynolds number limits within an aircraft's Laminar Flow Control system?

A)Premature flow separation and stall
B)Increased structural fatigue cracking rate
C)Reduced skin friction drag coefficient
D)Elevated thermal load across surfaces

💡 Explanation

Laminar flow control relies on maintaining low Reynolds numbers; exceeding the limit causes transition to turbulent flow because the mechanism of boundary layer instability introduces disruptive eddies. Therefore, flow separates earlier, increasing stall risk, rather than drag reduction occurring at higher Reynolds.

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