I wonder if one of the experts could have an analysis of these flight logs and tell me what caused this behavior.
Plane = Skywalker 168
RC Futaba 8fg Tx Corona 2.4 Rx
APM 2.5 downloaded with parameters for Skwalker from wicki
3d battery monitorset to 10.9 volts Failsafe with 3s 6000 40c pack
Video Tx Immersion 5.8
Previous flights without APM have been smooth and precise with and without AV. Flight was line of site not FPV. After launch the plane was trimmed out and flown away at about 200 feet and 150 feet high crusing level at 1/3rd throttle. When RTL was selected the plane went to full throttle, full left aileron (a pefect wing over) and headed vertical down. I switched back to manual and recovered level flight. I tried this a few times but with the same result. I tried circle mode and that worked but with a descending pattern with no attempt to regain height but I did not give much time and switched out to manual and recovered level flight. I then performed a manual touch and go and on climb out at about 80 feet the model went to full throttle, performed the wing over abd vertical dive. This time it was too low and I could not recover, I had no control of the flight surfaces but I did get the throttle closed (I think). It was not a stall spin. The model is a right off, so is the camera and Video Tx. I do not know enough to decode the logs and I would dearly like to know what caused this crash. I was in two minds to use the APM in this plane or buy the new FY-40 Autopilot, wish I had now, 300 pound down the pan!!