For all you guys out there that want to under-power this plane, I flew mine with a 120 Magnum 4-stroke and it flew pretty good scale, wide open, until the rocker arms got a little out of adjustment on the last flight. Go ahead and do it though, you too can look forward to this! Please take video for the blood thirsty in the crowd!!

http://media.putfile.com/Death-of-a-Super-Stearman-90[