For the flying or stalling question, I have had this happen on several planes. The Throttle servo takes a dump at a setting just above idle. Now you dont have enough power to go around or maintain altitude, but it has just enough to keep it off the runway till you hit the trees on the other end !!! In this case your only option is to set her on the mains then give it down and stuff it in. This never has the happy ending we would have wished for. This is why you have a choke servo, or a fiber optic kill swith.