I'll chalk it up to a ghost in the machine....

I took off for a practice/trimming flight and it locked out about 6 feet high, 2/3 throttle. Then it started rolling left and hit on the wingtip...scattered candy apple red shrapnel about 100 yards. I still don't know what happened, everything works.

But that's life with r/c planes. Sooner or later you're going to lose one....or 2 in my case.

-Mike