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Old 10th Feb 2018, 15:14
  #398 (permalink)  
Concours77
 
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Originally Posted by G0ULI
Standard aviation design notes suggest that the rudder be capable of resisting full aileron deflection on single engine aircraft or an outboard engine failure with other engines developing full takeoff power on multiengine aircraft at speeds 1.2 times the stall speed.

There is so much to discuss in this comment. First, I agree. Second, the Electra we discuss had ample airspeed to invest the Rudder with sufficient authority to overwhelm the ailerons. Add asymmetric thrust (reduce portside) and the initial recognition of a problem, and we have nothing to push around here.

Either the Electra design was flawed in that respect, or the ailerons were or became deflected and held at considerably more than three degrees.
I think there was something gone wrong that made recovery unsussable, if at all possible. The three degree scar/artifact in the inboard closing rib means only that was deflection as the wing tip folded back around the trailing edge, forcing the take off set flaps to crush the pocket together. There is a caveat, depending on any angle we must add to include the flap angle to chord that may have been zero degrees, in actuality. Flaps set to takeoff mostly move back, to increase wing area, with minimum additional drag?

If in fact the scar resulted from initial impact and the flap was down some small amount, then the aileron may have been zero, or even roll left, (down).
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