Hi, I am working on my Skywalker V2 plane with Mateksys F765-WSE. GPS is M8Q-5883 and airspeed sensor is ASPD-4525. To begin with I have ARSPD_USE = 0, and I am not using compass. This is my first Ardupilot aircraft. My Tx is Taranis X9D.
Flight modes are controlled with two switches acting as a six position switch.
Currently I am focusing on trimming the plane, and want to use SERVO_AUTO_TRIM. I have read about this parameter, but I am a bit uncertain about the order of proceedings.
I have made a small ordered list of actions to perform before I start tuning the plane, and hope someone would be kind enough to comment on it.
- All channels to 100% in Tx.
- Tx trims centered.
- Control surfaces leveled with the plane’s flying surfaces.
- Radio calibration done in MP.
- Plane leveled on the table and accel Leveled in MP.
- Servo output MAX and MIN values set to suitable control surface deflections.
- Servo output TRIMs set equal to the Tx neutrals for Aileron, Elevator and Rudder.
- Servo output TRIM to bottom position for Throttle stick.
- SERVO_AUTO_TRIM parameter set to 1.
Then:
- Take off in Manual mode. Do not touch trims on Tx.
- Switch to FBWA and fly around a few minutes trying to hold the plane level.
- Land and check Servo output TRIM values.
- If TRIM values are too far away from Tx neutrals (how much?), do mechanical adjustment of links.
Could anyone please comment on this? It would be very helpful.
Thanks, Helge.