RE: Two new F3A outrunners from Hacker
You guys ever notice a harsh prop sound when pulling over the top of a humpty or hammer head? I never noticed it with my glow setups but I do with my electrics. I too had an outrunner pull the nose off of a plane before. It was a smaller .50 size pattern plane and Plettenberg. I was wondering if the gyroscopic effects on these thinner APC electric props were causing them to flex excessively which created a vibration that in turn transferred to the motor.... and that being a heavy rotating mass in the case of an outrunner was just too much for the airframe to handle. I'm too am now shy of front mounted outrunners.