OK;

I have been through the mill on sizing AC according to engines and then converting 2 cycle to 4 cycle sizes / power requirements... but NOW that I'm heading into gas ...

SO!

If a 50 cc gasser will move a 18-22 pound plane, just what size plane will a 26cc gasser fly?

Is it proportional?

Should I be looking at 10 - 12 lb planes? or what scale are we talking?