Originally Posted by
mgnostic
Given that swapping out pushrod can be a real pita, this may be info for the next plane. The red Sullivan rods are usually labeled as "flexible". The general intention is that they are useful when you have to snake a rod around other structures or go around a curve. I generally use them for throttle linkages and small airplanes up to about .25 engine size. The blue "standard" rods are much stiffer. The stiffness comes more from the sleeve then the inner rod. I would have to go out to the shop and check but I'm pretty sure that the inner rod from a blue sleeve wont fit in a red sleeve.
Hi Matt,
You are correct about this. From my memory, the inner rod from the blue will not fit inside the red sleeve. The red version was used due to availability.
It was much easier to get good hardware back in the -90`s then it is today, especially here in Norway. ARF`s has basically killed the market for hardware....
What I can do, is to replace the inner rod with a 2mm steel pushrod and slide pieces of Sullivan inner rod onto it, evenly spaced along its length. This configuration is commonly used on most Great Planes models I have had, and seems to be pretty stiff and slop free.