After finishing the flying stab I worked on the rudder . this a pull pull rudder .For the cable I like to use 85lbs Kevlar braided fishing line. I use double pull. so I loop it around the rudder side and pull the two leads per side to the arm and pull tight and tie. after this I use thin CA and soak the knot . once you do this its there.. I find this system and very effective and I have not had any failures.
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Also in this picture you can see that I have cut a the plate that holds the servo and battery I used 1/8 carbon sandwich ply , The parts that are supplied are fine I choose to do this for the extra strength. I mounted the 8 wire plug for the lower wing servos.. I cut another piece and glued it under the opening on top below the upper wing for the servos .