WTF is up with my Tricopter

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CurryKitten

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Published on September 17, 2012 6:26:39 PM ● Video Link: https://www.youtube.com/watch?v=iETZ7vn7T1I

Duration: 1:55

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Somethings gone seriously adrift on my Tricopter which was a pretty reliable platform - at least in terms of flying arond it didn't shake like it was trying to kill someone.

Now it's shaking all over the place. I've spent a lot of time hovering in LOS and it's rock solid, but move forward/backward at any speed and we get this pulsing effect along with a shake - which I think is coming from the rear leg.

I've had it on the ground though, and run the motors up to full, and I just can't replicate it. I thought it must be something going out of balance, but I didn't think I'd get a stable hover if that was the case - so I'm a bit stuck in trying to find where it's going wrong, and how to fix it.