Agressive Ritewing Zephyr PID tuning

I finally have my ritewing in the air and she flies like a beast.

This is one very agressive airframe that can be incrdibly responsive.

I am very happy with its performance envelope which ranges from screaming fast to a gentle glide.

It flies great in manual and stabilize mode, however I'm having a few problems in Auto mode.

It is simply applying too much servo movement for roll actions, the plane almost flips over.

It is not applying quite enough servo movement for pitch actions.

If I apply even the slightest bit of roll input when in auto mode, it flips over almost immediately.

 

Its fine in stabilise mode and I can handle it in manual mode, but I'm not sure which PID to adjust to correct this. I have done a bit of 'fiddling' but this nearly ended me up in a river, so I'm keen to get some advise before tweaking again.

 

This is going to make an awesome UAS once I get her tuned up right.

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Replies

  • Hi Chris.
    Thanks I found this after posting. I'll go through that and post a file when working.
  • 3D Robotics

    Have you gone through the FBW tuning process here?

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