I really fail to see the correlation of a "speed" claim. While 106-111 mph may be an admirable velocity, it does absolutely no good if the plane can't maneuver, which is what the whole exercise of lightening the BME engines is all about. Reducing aircraft weight, as well as getting as much weight out of the "ends" of the plane as possible, is all aimed at making the plane more aerobatic and responsive, not to make it an unguided missile.

If your YS flies a "Stalker" at that speed, then it realy does not need any more motor, does it. But, if you are flying an IMAC 30% plane, and can get it lighter in the nose and tail so that it responds and flies better, then you have just achieved something. going to a lighter engine is the first step in that progression to a better flying aircraft. This is where the BME enignes excell.

NOW. . if you REALLY want that Stalker to haul boogie. . . go get a 20-18 THREE blade (so you have enough ground clearance) and bolt the BME on it. . I guarantee you'll see the high side of 130 very easily.

Personally, I can't see the logic in a plane that goes over about 60-70 mph at any time, unless you are pylon racing. Much above that speed range and its here and gone too fast to have much fun with. BUT. . take an 80-85" aerobatic plane with a very light but powerful motor on the nose. . now THERE is where the fun begins.