Need Help with Oscillation Issues During Flight

ArduPlane
1

Hi all,

I’m encountering oscillations during the flight of my Delta wing. They happen when I set the rectangle mission.

Has anyone experienced something similar or can offer insights into what might be causing this and how to fix it? I’ve attached a flight log for reference.

https://drive.google.com/drive/folders/1VpOUXpHmmKpYp6r11cKkTjjL4VeD_U1Y?usp=sharing

Thanks for your help!
Arthur

2

It appears that the attitude control PID gain in the roll direction needs to be tuned. In particular, RLL_RATE_FF (=1.172) seems to be too large. I think the FF value has been adjusted to an acceptable value (=0.4611) with the Auto Tuning you performed before landing.
You might try flying again with the current conditions and see if there is any improvement.

3

@hatnac thanks for your reply. I will try again. The one other concern it is rolling to the righ worse then left and if we check the logs there is small oscillating to the right. I tried autotune but didn’t help same behavior.