Cox engines with throttle
Any one remember the old Cox engines that came with a throttle? Weren't they for control line? I would like to build a control line plane for my grandson. I was thinking the only difference between C/L engine and RC is the throttle, Am I correct? I didn't fly many control line airplanes when I was young and don't know much about them, but I think I remember a C/L handle with the throttle control made on it.