OK, disclaimers first: I know most don't bother with 1/2A combat; I know virtually everyone uses foamies these days; nonetheless, here's my new, improved Rumbler, 1/2A built-up balsa wood plane. Really sorta 3/4A I guess, I actually often use a Norvel .061 on it, since the only kinda fast .049s I have are VAs. "Improved" in being lighter, simpler build, sidewinder engine mount (original used upright, finally gave it up when I got too tired of breaking engine mounts in inverted mishaps). 30" span, 180 sq. in., 5 oz. with engine.
--Ray