The accident reports indicated that the outer wing
panels departed following a (more or less) symmetric
pull-up, probably out of a spiral dive. It's unlikely
that there was much asymmetric twisting at work.


My thought was that wing twisting (digging in) might
have gotten them (Ivens & Engen) into the spiral dive
in the first place. Once you get a big ship pointed
down with the speed near red-line and increasing, you
might very well have already had the snitz.
JJ