I have two ARF's that the 46FX can 3D and they are both 5 lbs. This one would be 5 lbs or less and would 3D great. It's probably the most stable ARF out there in it's size. It NOT a scale plane though. Scale planes are heavy for this engine. Keep it light.

http://www.extremeflightrc.com/produ...EdgeFunFly.htm

BTW, I'd use an APC 12.25-3.75 or 11.5-4 for that 46AX if you want 3D thrust out of it.