For the past 3 years, I've been flying my Rascal 40 powered by a 1988 OS FS48 Surpass with a 12-6 Master Airscrew Classic prop and a Max Products on-board glow driver. The plane has plenty of power and flies beautifully. In fact, at our club fly-in several weeks ago, we had a glide-to-land event in which we were given 21 seconds to climb as high as possible, kill the engine, and sustain the maximum glide before landing. My Rascal climbed nearly out of sight in the 21 seconds and sustained its glide for 3 minutes 12 second, nearly half minute longer than the nearest competitor.