@pompecukor wrote:
Hi all. First post here (be nice :))
Anyway we have an issue with a pixhawk (3rd) that we cannot figure out the reason and how to solve.The thing is that when switched to auto-mode and take off command, the AP only puts out 90% throttle. I also obvious from the failed launches that we have had.
The curious thing is that all parameters as set correctly (as far as we know) and that ins FBWA mode the throttle and ch3 output (controlled from RC), goes to 100%. Also the motors spin to max. We can even see difference in wind meter we put behind it.
In the parameters we don't have anything limited. Here are the obvious 2 that come to mind.
thr_max and tkoff_thr_max . Both are set to 100%.
I am happy to share save parameters if it any help.Frame is a fixed wing obviously. MyTwinDream, with twin motors.
Some more background information, incase it could help. I build the plane a tuned it for someone. It was perfect. Then I shipped it to him and in the journy the airspeed sensor tube got damaged. So we ended up disabling air speed completly. Again I do not know how this would mater. As I said in static ground testing the auto mode goes ful throttle to only 90%.
I would really appreciate any hints, ideas to fix this. Or at least where to look..
Thank you.
Alex
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