U Can Do pitch coupling with rudder input
10-17-2002, 02:05 AM
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U Can Do pitch coupling with rudder input
I've got a couple of flights on my U Can Do, and so far I'm pretty happy with it. The only issue at the moment is a pretty strong pitch coupling, it pitches rather strongly toward the belly with rudder input in either direction.
Any suggestions? I'm inclined to just mix it away, but if there's a reasonably easy way to fix it without a mix I'd go that route first.
Thanks in advance,
David
Any suggestions? I'm inclined to just mix it away, but if there's a reasonably easy way to fix it without a mix I'd go that route first.
Thanks in advance,
David
10-17-2002, 03:20 AM
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CG and Mix
Hroachen, we're all finding the same thing that you did. I started with my UCD at 5"CG, and set up the mix so that it would knife edge straight, problem solved for the most part. I then moved my CG back to 6", and I had to substantially reduce the pitch mix. On right rudder input, it went from 14% to 8% from what I remember. So if you experiment to find a CG you're comfortable with, the mix may change a little.
10-17-2002, 04:28 AM
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U Can Do pitch coupling with rudder input
Thanks,
My CG is pretty well forward at the moment, I guess I'll first get it back to where I want it, then just mix out whatever pitch coupling remains.
David
My CG is pretty well forward at the moment, I guess I'll first get it back to where I want it, then just mix out whatever pitch coupling remains.
David
