If the boundary layer separates from the wing surface, what is a common consequence?

If the boundary layer separates from the wing surface, what is a common consequence?

• A. Increased lift
• B. Loss of lift and potential stall
• C. No change in performance
• D. Reduced weight

Answer: (B)

When the boundary layer separates, the air near the wing can no longer stay attached to the surface. This detachment disrupts the smooth pressure distribution that creates lift, causing a sharp drop in lift and a large increase in drag. As lift falls, the wing can reach a stall condition where it can no longer produce enough lift to support the aircraft's weight. So the common consequence is loss of lift and potential stall.

When the boundary layer separates, the air near the wing can no longer stay attached to the surface. This detachment disrupts the smooth pressure distribution that creates lift, causing a sharp drop in lift and a large increase in drag. As lift falls, the wing can reach a stall condition where it can no longer produce enough lift to support the aircraft's weight. So the common consequence is loss of lift and potential stall.