Ditto,

A large engine MAY pull your plane out of a bad situation by pure power, especially at low speed. It MAY get you into that trouble to begin with, too. RC-Fiend is incorrect when he states, "overpowering is a security blanket against crashing". The only security blanket against crashing is the pilot's flying ability. Some planes ae designed to fly "on the wing". Some are designed to fly "on the prop". Some do both. Use a larger engine to improve flight characteristics, not to prevent crashes. It won't.

Dr.1