Horatio, yeah I havn't explained it well "unpacked" but green goblin has described it well. I agree with you ref power lever position post impact, I'll try and explain it again, imagine a propellor on it's fine pitch locks, and apply full power, the drag produced in this condition would produce a Vmca in the order of 140kts if it were airbourne. I still havnt explained it have I, but you'll get the picture.