Pixhawk quad crash, Truncated Log? Ends while armed at 11.3m

ArduCopter Copter 3.1
1

Trying to get to the bottom of a crash I had yesterday. The quad (a Vulcan frame with Tiger motors/ESC’s and all original Pixhawk, 3DR compass/GPS module, 3DR power module, etc), just dropped out of the sky after a turn, it was flying great up until that point.

When I got to the quad it was beeping with some LED’s flashing on the Pixhawk, I didn’t look at the sequence or colours of the LED’s. Both logs just stop as if the Pixhawk lost complete power but all the battery/power connections are fine, even after the crash, battery was still in and everything else still connected. Yet the quad dropped like a stone breaking three carbon props and damaging one motor.

Perplexing!!

2

Hi Graham,

This sure sounds like a brownout or power issue. You probably saw/heard the pixhawk rebooting. Have you checked all of your connections?

Dan

3

Hi Dan, that’s the odd thing, all power cables and wires are fine, I’ve checked and double checked them structurally, and electrically with a continuity tester. I can’t understand it but have shelved that quad and Pixhawk for a while. Can’t have things dropping out the sky like that!