Thanks

I was looking for something to power 60-90 size glow planes. Without doing any measuring, the 18cc looks like it would just fit. Also looked at Wally world last night and noticed that the smallest weedeater they carry now has a 20cc motor. The weedeater costs 59.95. I also noted that they seem to have a plastic backplate on them. What do you all think about the potential of any of these?

Jim