Just did a flight in -17C. The quad stopped listening to me...
.log file attached.
What could have caused this?
I tested the RC link afterwards and that seems fine so I dont think the problem is here..
My board is APM 2.6 with ext compass. Enabled logs ATTITUDE_MED GPS PM CTUN NTUN CMD CURRENT
Like you say, APM never left Loiter.
Also, your ThrIn decreased in steps ? your PitchIn is gone after before log line 5000, your RollIn is then stuck at ~-10
This is a mess, and I think you are lucky it came down the way it it did.
Anyway - you should use the APM's failsafe, not reciever. That's the only correct thing to do, and then you know what to expect. Configure throttle failsafe, then , when throttle channel sinks below a threshold, (or goes away), then APM takes over fully, and ignore other invalid input.
Thanks Andre for your comment.
I set up the APM failsafe and it works as intended. I have done three 2 minute flights after the weird one and everything has worked as expected. But I would love to know what happened because before that it does not feel safe to fly... :-/
When I switch off TX Thr drops to ~900 as it should, but note that I did not have APM failsafe set during the above flight. Then I used radio failsafe with Thr at ~50%.
Any one else out there that has a theory of what happened with the APM? Too cold?