Originally Posted by
Concours77
Lockheed did simulate a fouled aileron, and analysed force required to overcome a trapped aileron, (trapped in this case by the wing flap). A reasonable theory of entrapment could flow from a scenario where the flap, being retracted after lift off, contacted the aileron and pushed it up, creating wing down.
Would entrapment necessarily mean physical contact, or do you envision the possibility of flap airflow impacting a somewhat slack aileron and pushing it to a wing-down position without directly contacting it?