Control Rod Installation Problem
Hi All!
I am building a Great Planes Ultra Sport 40+. This is my first kit.
The elevator halves are controlled by steel pushrods that run back to the tail after splitting off up by the servo. Each half has it's own outer tube. When I was building the fuse, I noticed that there was quite a bend in the tubes as they ran from the rearmost former and the pushrod exits that were die cut in the fuse sides, but I thought that someone who knows more about such things designed the plane so I forged ahead.
Now I've got the control rods installed in the outer tubes, and to me it seems like there is an excessive amount of friction in the elevator set-up. Tested separately the rods have the same amount of friction. The rudder control rod runs fine through it's outer tube fine, but the hole that it runs through in the aft-most former is in a different spot than the elevator rods.
This is what I'm talking about - only 1 control rod is drawn in:
The push rod tubes are secured to the fuse sides where they exit with an epoxy/microballon mixture; they are glued at the aft-most former, where they pass through die punched holes, with CA. They are not glued at the forward end where they pass through a lite-ply support. I have about 1" of tube that extends forward of this guide so if I had to cut the tubes out of the aft section of the fuse I could push them back a bit.
Aside from pulling the bottom sheeting off the back part of the fuse and performing some surgery to straighten the tubes, can you think of another way to free up the control rods?