RE: gasoline speed engine <30cc ??
Hm, a Super Duelist. I saw a guy on here build an enlarged twin .60 powered Duelist. Maybe too big, but how about OS 1.60 FX's? Mine pulls around a 17 pound KMP Sea Fury at a solid 120 to 130mph's with an APC 18x12 prop. I flew it at Joe Nall this year and I was outrunning every 50cc warbird there.