Well being a twin that is going to be flown around in a scale like manner does not need a ton of power. However, a pair of 46 engines on a 25 lb airplane is just not going to provide any safe amount of power. A pair of 55s would be better. I read the flight report that Minnflyer did on this airplane and he felt that it had enough power at 18 lbs. 7 pounds heavier and I'm certain it would be a different story. By comparison a 25 lb war bird would be powered with 60cc. An aerobatic model of that weight would be powered with 80cc to 100cc. Flying an underpowered airplane is just about as difficult as it gets and it's my understanding that Orion does not have much flying experience.