I have an old slope glider that I built 20 years ago, a Douglas Silhouette. Anyway a couple years ago I chopped off the nose and put a .061 on it and it was a hoot to fly. After crashing my electric pylon racer I threw the electrics in the nose of the sloper. I had to cut an d rebuild the fuse to fit a battery in it but the effort was worth it. Running at 45.000 rpm on the ground turning a 3.8X4.1APC prop she's doing 150mph plus. So far the only radar speed I've been able to get was 125 a half throttle....