Went out to fly mine today, but could not.

During the "break in" procedure, all of a sudden at the 3/4 throttle setting a lot of vibration. Stopped to inspect. Looks like the motor shaft is bent. I'll take it apart to be sure. No way it could fly this way, it would shake itself apart.

I was not surprised at the rather crummy looking fan and housing (after all, what can you expect for the price...), wondered how it could hold up at this rpm. Is it too late to retrofit a better motor/fan into the shroud that is already epoxied into the plane?

Dave