Kitfox - Trim Tabs to Fly By Wire

[kitfoxjim]

This looks good! Thanks for the info! Those building I would highly suggest putting rudder trim. If you want to do any sort of cross-country and not constantly have your feet on the pedals you will need something.

That Servo Commander system does look interesting.....but it you go back to my original post it details the electrical items required for trim control, and at far less cost. I can vouch for the reliability of R/C servos and controllers base on 1800 hours flight experience on my Kitfoxes. Also servos and controllers should be available at you local model aircraft shop.

[Shadowrider]

Dustin , included are the promised pics of my rudder trim setup. As far as the hinge material goes aircraft spruce P/N 03-00051-3 ( MS20257P5-3) is what I used but then did a bit of modifying of the hinge for my installation. The part of the hinge that is screwed to the rudder is the stock dimension of 1" , but I reduced the dimension of the hinge to 5/8" where it is riveted to the trim tab. (evident in the photos) I also pulled the pin from the hinge and flipped it so it is offset so my trim tab falls on the centerline of the trailing edge of the rudder (If this doesn't make sense , look at the top view photo and you'll see what I mean) My tab itself is 6" long (vertical dimension) X 2 1/4" in depth (horizontal dim.) from the centerline of the hinge. I have found that this size is sufficient for all my trim needs. the small access panel houses the high torque servo (RC model servo) and this system was built after the airplane was flying for several years (and like you, realized that cockpit adjustable rudder trim was a need to have feature for my plane) Hope this helps Bruce N199CL

Did you just run a bunch of servo extensions or did you use some wire to extend the servo? Trying to decide what route to go?

[airlina]

Dustin , I just used wire to extend from servo to cockpit controller, and as i mentioned that was probably the toughest part of the install on a finished airplane. Bruce N199CL