I have set up and tuned a 500 electric using CUAV Pixhack v3 with success earlier this week. This gave me the courage to progress to an 800 size gaser and Pixhack v5. I am following the Wiki to tune but the tuning end with a forced termination as the heli started to oscillate violently.
I completed the rudder tuning and VFF. The heli was manageable and it seemed that the rates were tracking nicely, apart from being a bit tail heavy. However, when I started to adjust the D gain to 0.003, according to Mission Planner, the craft started to oscillate heavily.
- What am I missing?
- Is it possible that the D gain can be 0?
- Is it possible that the scaling between Pixhack v3 & v5 is different?
I am attaching a link for the log file. Any help will be appreciated.