We have been using Pixhawk in our fixed wings since a long time and have been quite successful with it so far. Today something strange happened:
We were tuning a new platform meant for aerial mapping. It was a bit windy day but manual take off went well and after trimming a the platform we switched to FBWA for finer tuning when suddenly the plane lost all the control and came down like a rock. It felt like it had no power and when it got inverted it could be recovered at all. We tried switching to manual mode but I dont think this was registered at all.
Following are the specs of the platforms:
3m span Glider
Castle Creations ESC
16000 mah 6S Tattu battery
Mauch Power Module
I am attaching the drive link below of the bin file and would be great if anyone could help us understand what went wrong.