RE: Rudder servo pull-pull installations
Hi David,
I have attached some pictures of my setup which I think works well for me. My cables are always taunt no matter were my rudder is including extreme deflections. Firstly the rudder horn must allow the pull pull cables to terminate over the hinge line. I also use the MK rudder horn attached to a standard horn on the servo which offsets the cable terminations slightly. The distance between cables on the servo end as well as the rudder horn end must be identical. I use the MK ball bearing fittings at least on one end to reduce friction and allow surface to centre exactly. Ensure that cables are parallel and straight. Any kink will result in excess cable guide wear which in turn will result in loose cables that require periodic re-tensioning. This sounds like a bit of work but the results are worth it.
Regards,
Peter