RE: fun low cost combat type plane
Check out the [link=http://racores.com/]Combat Gremlin[/link] for low cost fun. Throw a Magnum .36 on one and it flies great but if you enjoy the "need for speed", email me for pics of our own 36 inch version with an MVVS 0.15 that flies like an angry bumble bee.
Currently I'm building one with an MVVS .26 Combat Wombat engine. If it stays in one piece, I'll post the results.