You guys talking about the LT40. I will say 1 thing. It is a midsize trainer, but there is a guy that flies with us that has a .61 size engine in it. He ran through the entire pattern and was able to perform a knife edge loop with it. He did modify the wings and had them bolted on and not rubber band. My point is, it will train and then it will flat get-it!! WOW, what a plane.