Hi Sig728
I used to have a Great planes Extra 300 .40 which flew well, I had a OS 46FX with a Jett turbo muffler turning a 11*8 APC which gave fairly good vertical performance. all up weight was
6lbs 4oz. It is not a 3D airplane but does fly the pattern quite well, I manged first place at the last NZ nationals in basic IMAC and sportsman Pattern.

for anybody that is going to built one I suggest increasing the rudder width
Wildstyle