Cannot arm QuadPlane: "Throttle (RC3) is not neutral" error in QGC

[Toto12 (Ss)]

Hello everyone ,

First of all, please excuse my English. I am French and my English is not very good, but I hope you can understand my issue!

I am currently working on a VTOL (QuadPlane) using ArduPilot and QGroundControl. When I try to arm my drone, it refuses to do so and I get the following error messages on my screen:

“MAV_CMD_COMPONENT_ARM_DISARM command failed”

Arm: Throttle (RC3) is not neutral"

I have attached some pictures of my QGroundControl screen showing the errors.

Could someone please help me understand what is causing this and how I can fix it? Do I need to recalibrate my radio control, or is there a specific parameter I need to change in ArduPilot?

Any help would be greatly appreciated. Thank you very much in advance!

[Adam_Borowski]

Seems throttle is self centering. Did You set PILOT_THR_BHV properly?

[Juergen-Fahlbusch]

If you show your parameter files and if possible a logfile with LOG_DISARMED = 1 it will be more helpfull as the pictures.