Servos not at 1500us in manual mode

When setting up a flying wing using the TBS Caipirinha airframe preset in QGC the servos are not at zero trim level (1500us) for pitch in manual mode.

Logfile is here:

Anyone know why?


There’s an offset in that mixer.

Thank you very much!
Why would it be an offset in the mixer? And how is the correct way of removing it? Do I really have to change the mixer directly to get the servos centered?


you can try using the new PWM_MAIN/AUX_TRIMn parameters to recenter, but I’m not sure how that interacts with a mixer offset
IIRC, the parameters override the offset