gidday fellas, I've just checked out Brian felice's site on this subject and it has raised a couple of questions for me. One is, why is it nessesary to have the Ackerman effect? I have installed a closed loop system for both my elevator and rudder and was carefull to make the system symmetrical. I have a bellcrank, operated by a short stiff wire pushrod to the servo and cables from bellcrank to the control surface. When the servo is not conected to the crank, the control surfaces just flap in the breeze with no binding or loosening of the pull wires. This also eliminates the constant tension on the servo because the bell crank takes the strain. This system works great without Ackerman.

Secondly, why on Brians system, no cable has a straight run to the control surfaces but cross and bend their way to the exits. I was led to believe that minimal binding was called for so no unnessesary strain was put on the servo. I understand that he uses teflon guides for the exits but surely it must bind some, especially his ailerons.