ORIGINAL: Magne
In post #2 there is a link to a picture of QQ's set up. I notice that he uses a wheel/pulley on the rudder servo, but not on the elevator servo. (I assume that it is not the other way around.)
However, the reason that you get a slight rolling coupling with a vertically mounted elevator servo is that you have a sideways movement of the servo arm as this moves away from neutral, thus pulling more on one cable than the other.
Would not this be removed if you used a wheel (pulley) on the elevator servo, keeping both cables equally tight?
Magne
In theory no, it does not change much. If I recall right Ã*t is pythacoras function (and up to cotangent trigonometric functions) which to use if you want to calculate how little it makes diffetence with 2m ship. I bet you can not notice anything when flown. But closer the servo is to the hingeline and control horns wider to each other it has more effect and it causes tightening and slack on lines too.
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