ORIGINAL: sgf323
Doc, do your MUS's exhibit any roll when using the rudder?
Yes. So much of the rudder area is above the thrust line that it's goi9ng to roll couple. Just about any stick type model has really bad roll coupling because of this. In the 80s we built out own that had the stasb moved up and the rudder externded down to the bottom of the fuse, and they still coupled but it was much better.
Do you use any Rudder-to-Aileron mixing?
No. We just fly around it. For what you're doing, it might be better to has less rudder movement.
We were going to modify the vertical and Horozontal stabilizers to eliminate as much roll coupling as we could, but we ran out of time.