Friends,

I have been fighting with the spoiler tube of my Spirit for two days, trying to figure out how to get three wires from the wing root, through that tube, to the spoiler box where I want to mount a servo. I did not like going down to 30ga wire, even if it is likely to be adequate. There had to be another approach.

Here is what finally worked and here is the key.

I tried to put thorough three strands of 24 gauge telephone solid core, that I took out of a larger 6 strand cable. The insulation is thinner on these strands than if you buy 24 gauge wire. But they just wouldn't quite fit.

After trying all kinds of combos, I finally to two strands. To that I added a strand of 22 ga. enamel-coated magnet wire that I got from radio shack. The enamel is the insulation and is very thin. These three strands fit into the cable, but I just could not push them through.

Then it hit me. Lubrication. Friction inside the tube was killing me.

I used saddle soap as the lube. I took one of the strands I was going to use and built up some saddle soap on the first 6 inches of it than used it to slide inside the wing tube to lubricate the tube. Then I did the same thing with each strand. This got the tube well lubed and got the wires lubed as well.

Now, this bundle JUST FITS, but with the saddle soap I was able to push the three wires through the tube working from the wing root to the spoiler tray. It took two days to get the first wing wired and about 15 minutes to wire the second one.

I was so excited I had to get on-line and share the solution for anyone who might be working at this same problem.

Now I will cut an aileron extension cable to get the two ends I need and solder them to the wire that runs through the tube. A Y cable will connect the spoiler servos into the receiver.

I love it when a real head scratcher gets solved. There is a real feeling of satisfaction. I was almost ready to give up, but many people brought encouragement and tips that helped me work through the problem. The right combination of wires and lubrication is what made it work.

I hope this solution helps someone else.