I have a .46 Irvine in my Eagle 2. I think this is a very good match. Plenty of power with a 11X6 Master prop. I just putt around at around 1/3 throttle. Nice and slow. On the other hand, the engine will yank that Eagle off the runway in less than 20 feet. And running only 5% nitro is pretty economical to boot. Anyway, I am pleased with this combination.