Look at Dave Brown arrowshaft pushrods. I LOVE Goldenrods for certain applications, expecially if the wire ends have bends to make that the curve of the rod will eliminate. I've also used wire-in-a-tube (both 2-56 and 4-40), straight wire (4-40) for VERY SHORT runs, 1/4" bass/wire (2-56) rods (I have a much better method of attaching the wire than the old "wrapped thread" trick), all with good resuklts. You have to pick the best linkage for your particular requirements. Goldenrods and wire-in-a-tube both should be braced every 3" - 4" inside the fuselage. They're are a little more work, but make a VERY NICE appearing and bind/slack-free installation. Today's Goldenrods do NOT have the expansion/shrinkage problems the nylon rods of yesteryear did. A few years ago, I did a test of a 24" piece of yellow rod. From a temperature difference of 0 degrees F to 200 degrees F, I noticed a length change of only 1/32".

Dr.1