Ohh, thats a mystey

Opto rctimer sk-20a esc. With red servo cable off and a extern 5v bec. I have built another tri with apm 2.6 with Afro esc- Flyies like perfect. Whats my problem?

youtube.com/watch?v=WQViZ2tfTps

@Boostedsnake,
Please provide tlogs and/or dataflash logs to help troubleshoot your issue.
Regards,
TCIII GM

[quote=“TCIII”]@Boostedsnake,
Please provide tlogs and/or dataflash logs to help troubleshoot your issue.
Regards,
TCIII GM[/quote] Sorry.Dont know how?

@Boostedsnake,
RTM: http://copter.ardupilot.com/wiki/common-mission-analysis/
Regards,
TCIII GM

Well, I’m glad to see that I’m not the only one that occasionally goes through that stuff. It will make you pull your hair out for sure. Just from guessing from the video, it could be a whole lot of things. Some ESC’s don’t play well with others, so to speak. Could be transmitter end points, on and on. But you’ll figure it out, and you’ll slap yourself on the forehead, and say," so that was the problem" !!! Been there, done that! :smiley: