is your engine running right now and how would you compare it to a g23. what prop are you swinging at what rpms.my boy is building a balsa usa d-V111. 1/4 scale, 82 inch ws.should weigh about 5-6 lbs when done minus engine.bausa said theres weghed between 10 - 12 with a g23.looking for somthing to put on and stay on that will be happy with.dont have $300 for an engine right now.i have 6 gas, 2 converted and 4 more that i can convert.20cc mccullah,21.2cc shindaiwa,25cc homy,21cc echo(backwords rotation),25cc poulan,31cc kawasaki(plane with rail mounts),31cc ryobi(on my 1/4 scale sopwith triplane.thanks for the comback.