Mike,
I think the prescence of the larger APC E style prop is nothing more coincidence. Am I correct that 100% of the ejected motors were outrunners mounted on the nosering only, with no aft support of the motor? I have seen nosering mounted outrunners shake violently using glow props (which most certainly are not flexing). In each instance, adding an aft support to the outrunner cured the problem.
Regards,
Dave
ORIGINAL: mups53
I'm convinced that some of the larger APC props are flexing at the tips and have caused some violent worrble situations that when it gets going will pull the motor right out of your plane. I know of many many guys who have ejected motors and everyone I know of was using an APC E. style larger prop. I'm thinking their not stiff enough. But hey that's my opinion based only on what I've observed.
Mike Mueller