@drubug wrote:
Hi All,
Been a few years since I used ArduCopter and the Log files have moved a long way since I last used them
Hoping someone can check my theory about crash on 2nd flight of new quad.
Few details.
Spider 700 V Frame
3508-700kv Motors
30Amp Esc's
15x5.5 Carbon Props
4s -8000mAh 10C Battery
Pixhawk 3.4This was just second flight after I had tweaked the PID's down a little, Hovered at about 30% throttle. Nice and stable, if a little twitchy (not run autotune yet).
It was all going fine for about 4 mins, had used Alt Hold, held 4-5 feet very well. Switched to loiter, seems very stable, little drift but no toilet bowling of sorts.
Then all of a sudden quad fliped over and crashed. before I was able to hit stabilise, anyway, only damage 1x prop. So was lucky.
Now I have looked at the log best I can but cant seem to see anything strange myself, you can see where the quad flips and then hits the deck. But not sure if im reading it right.
I am therefore suspecting mechanical failure of some kind. It was almost as if the front right prop just shut down. Maybe issue with ESC or motor.. I checked the temps straight after Motor was 28dec C, ESC was 45C. Not overly hot at all!
Anyway, if anyone can give me pointers before i try again would be very gratefu. Maybe im missing something in the log.
Thanks
AndrewLink to the log file 4mb so cant upload it directly.
https://drive.google.com/file/d/0B_EsXs43WMcyN2lBellzbTg2Mk0/view?usp=sharing
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