I saw one fly with a new OS46FX, and it hauled it around pretty well. If it flies anything like my 40 kit, then it should be a real sweetheart in the air, almost pattern-like. Edit: Oops, I'm not sure if you were talking about putting a Supertigre G45 on the small one, or a Zenoah G45 on the big one. Sorry if I was mistaken, but if anyone is interested the small one is a nice plane.