Scott,

Bruce's comment is spot on that your rudder horns have already been extended. If you look at the rivet near the rudder, the rivet is going through the hole that would have been used for connecting the rudder cable without the addition of the of the extended horn you have.

If you are thinking about reduced effort to move the rudder - that is exactly what happens when the rudder horn (arm) sticks out further. Without the extension, more effort would be needed to move the rudder. Short horns=more effort, long horns= less effort.

Also, as with Bruce's plane with the short horns, our early (meaning pre John Mc Bean) S7 also has the short rudder horns like yours would have had if the the existing extension had not been installed. I believe the current Kitfox design has longer rudder horns.

As with Bruce's rudder with the short, unmodified horns, I fabricated a wear shield on the rudder on both sides to prevent fabric wear. That has worked perfectly since the build - no wear on the fabric at all.

Given the development of the kitfox over time, the short horns provided no interference on earlier planes which had the slab, non-airfoiled rudder/vert stab. One of the early skystar S7s (now owned by another member of this list) was equipped with a slab rudder/stab rather than the now common airfoiled rudder/stab so the short horns hold the cable well away from the fabric. The increased thickness of the rudder due to the airfoiled design causes the cable to ride directly the sides of the rudder with the short rudder horns.