I have to agree. The Magnum is no Top Gun power wise. It would fly the Ryan however. The Ryan is a slower aerobat, and probably would fly well, but by no means unlimited. The Goldberg Ultimate is a SUPER plane. I'm flying my second one now and it still manages to surprise me how easily it does everything. The Magnum would probably be OK. I fly mine on a 120 Webra and it has absurd power. Your four stroke would be pretty nice.