I don't know, but when I was shopping for my Avistar I ran into a guy at the field with a Hanger 9 Alpha that he had turned into a "souped-up trainer" as he called it. He had taken the dihedral out of the wing, converted it into a tail-dragger, and I think he said it had a Magnum .61 in it. What an awesome plane! And that was with a flat bottom wing. I think it's similar to the Avistar otherwise, but just a tad bigger. With it's semi-symmetrical wing, the Avistar should be even better.