I finally figured out a way to do a pull pull rigging to my elevators! I tried doing it !QUOT!scale!QUOT! using pulleys, but the Pulleys were so small and the two 90 deg turns so tight that it just didn't work. ( Do I see a 1/4 scale in my future?) then I tried using small nylon tubing to guide the cable to the scale opening. Way to much drag. So, I rigged the Kevlar around a capstan, mounted on a brass rod which extends into the stab. on both sides.When the servo (or bell crank) moves, the tubing turns. In the stab there's a carbon fiber rod running out to the scale opening with a small capstan mounted on the end. The cable runs from the top horn, around the capstan,and out to the bottom horn. turn the capstan, and Shazam! pull pull!
Steve