Thanks,i put it in my GP Giles 202 ARF.1/4 scale,72ws i believe.I had an os160 in it.The echo flew it like a sport plane.Not a lot of vertical[at all].11-1/4 LBS RTF dry.Thats why theres only 3 tanks through it.Sold the plane and engine.Was thinking about putting the 24cc on my 96 inch spook.