I have the Aeroworks YAK 54 .90-1.20 QB with an OS 120AX that will fly IMAC and 3d just fine. I have just orderd the WH 25% Extra 260 which is about the same size plane and have plans on putting the Brillelli 26cc engine on the business end swinging a 17X6 prop. This is a good size plane if your looking to start out in gas because it keeps the cast down compared to a 50cc plane yet its still a pretty good size plane and for 3D it should have plenty of power for pull out since the little 26cc gasser is puttiing out 10,000 rpm running a 16X8 prop. I like this size plane for it's ease of transportation and low cost

Mr67Stang,

Brillelli make a [link=http://www.scottellingson.com/brillelli_engines_009.htm]36cc engine[/link] for $365.00 and that includes that EI and muffler.