Pushrods for CL Models

Many RC articles talk about control rods and related - hardware; control systems for Control Line models are not discussed as much. Most RC hardware is not suitable for CL systems. The purpose of this article is to give those less-experienced modelers a guide. And many RCers may decide to try CL; they may also find this helpful. I won't cover high-tech applications, because most of the people involved already know what works for them.