I had previously had a crash that was caused by a drop in Vcc.
I couldn't identify the cause of the crash so what I did was change the wiring so peripheral devices wouldn't draw current through the APM but rather through a separate BEC off the main battery.
I repaired the copter and had a couple of flight that went OK, and again today I had another crash.
A sharp drop in VCC but Voltage looks OK (?)
it is another expensive crash as I am flying a heavy hexa but I am trying to identify the cause so I can fix the copter and use it commercially
Any help would be much appreciated,
Thanks
Replies
So,
The only thing I power from the APM is telemetry and GPS, everything else is powered from dedicated BEC.
3DR power module powers the APM the jumper is off.
log posted above
I can't find why the VCC drops drastically at the end.