What causes different amounts of lift and drag in an asymmetric stall?

In the context of an asymmetric stall, the primary factor is related to how different wings on an aircraft can experience different aerodynamic conditions, which results in varying amounts of lift and drag. When one wing approaches a critical angle of attack and stalls, while the other wing remains flying, this creates an imbalance in lift across the wings. The stalled wing will produce significantly less lift and an increase in drag compared to the wing that is still producing lift.

In this scenario, since one wing is stalled while the other is not, the pilot experiences what is termed an asymmetric stall. The wing that is not stalled continues to generate lift, leading to a yawing motion toward the stalled wing, which can potentially result in a spin if not appropriately managed.

Here’s a look at why the alternative choices do not capture the essence of what is happening during an asymmetric stall:

Weight distribution can affect the overall balance and stability of an aircraft, but it does not directly cause an asymmetric stall in the manner described in the question.

Wing shape influences the characteristics of lift and drag in general, but it is not the direct cause of different stall behaviors in this context, as two wings of the same design can stall asymmetrically depending on other factors like angle of attack.