I had a spit16 come up dead 6 on my lancs. I shot his outer wingtip off (the whole tip, not just a pie-wedge of it), and he goes down, so I think he's done. I go back to bombsite, start taking more hits, jump to tail, and the same SOB spit16 trimmed himself out and nosed UP again and was STILL attacking me, missing his wingtip. He was getting lots of hits, too.
Most planes in this game can fly without a wingtip if you trim them properly.
Golfer, a jammed aileron is different from a missing one. If an aileron is only attached at 1 hinge point it's going to be deflecting a LOT of air in one direction or another, more so than it was designed for. That's a totally different situation from what we have here.