RE: Krash King part III - Beat this!
I have seen two planes crash in this manor, and it was the elevator not being even.
The first plane had a single elevator that was ever so slightly warped, which caused it to roll like that, and the other had a split elevator, one servo on each half, and he didn't have the servos set up right, causing it to roll.
Once your in a roll and starting to climb (and stall) your done.