It went in the snow/ground hard as I just couldn't get it straightened out in time.
The 35 year old epoxy left loose on all of the corners of the fuse and for the most part it was clean breaks with the exception of the landing gear plate, The wing survived so I may put it back together. I built this when I was 17 years old and made the fuselage like a tank !
As far as this problem I am truly stumped and so are the folks who witnessed it the last few times. It was on 72mhz on a 72 radio when it first did it. Converted it over to 2.4g on a different radio and it did it again. Changed out the elevator servo and it did it again. Changed out the throttle servo and it did it again. Changed out everything in the fuse and wing and it did it again.
It must be Aliens !
Maybe I'll call Art Bell !