Tricopter Tailservo does not work at loiter mode

ArduCopter Copter 4.0
1

Hi All,

I built a tricopter. But, the tail servo does not work at loiter mode at low RPM.
The tail servo does work at AltHold mode and the interesting thing is the servo works only at higher RPM at loiter mode.

Is it normal? (If it is normal, my hypothesis is that if the servo does not work at low RPM of loiter mode, the servo motor does not work to stabilise the vehicle until take off at the loiter mode. On the other hand, the Tail servo can work at althold mode because it does not care about position holding. Am I right?)

Is there anyone to explain to me please?

Thank you.

  • Raphael Park