Pull-Pull System - 08/25/2001

MVC-267F.JPG (45376 bytes) I had to drill a hole (about 5/16") in F7 to allow the pull-pull cables to pass through.
MVC-268F.JPG (31254 bytes) The Rocket City control horns.  The hard-point in the rudder does not extend to the front (hinge point) of the rudder.  Therefore you have to mount the control horn back about  5/16-3/8" back from the front edge to ensure that you have plenty of plywood through which to drill.  This puts the pivot point of the control horn behind the pivot point of the rudder.  Not a big deal to us "adequate" fliers.
MVC-269F.JPG (43597 bytes) Another view of the Rocket City control horn.
MVC-270F.JPG (48271 bytes) A view of the pull-pull cables attached to one of the rudder servos.  I am still waiting on 3 1/2" arms from Nelson Hobby, so this is a temporary setup.  I hooked the JR DS8411 up to a receiver/battery just to make sure everything was working ok and there were no binds, kinks, etc.  WOW - what a servo.  Fast and lots of torque.
MVC-266F.JPG (65640 bytes) This is the method I used to hold the rudder in place while I was measuring/installing the pull-pull cables.  Works really well.  Make sure not to move them around after you tape them together or you may get some hanger rash.