I have a fixed-wing with ICE engine and 4 electric motors for VTOL operation. I was flying today and during the VTOL landing, suddenly all VTOL motors stopped (First PWM=1200 - Spin Min Value, then PWM=1100 - Spin Arm Value). I have checked the log and so far I have not found any reason for that.
I have checked:
Pixhawk board Voltage (Vcc) - Around 4.8-4.95V
Autopilot flight mode: remained in QStabilize
Messages: no Fail Safe alarms
Vibe: Vibration below 20
Gps hdop value below 0.62
Battery voltage also normal.
Does anyone have any idea of what happened?
Thanks in advance,