I am looking for another scratch project, and this time I want to build a good 3D plane. And I was wondering what makes a 3D plane able to do 3D (Large control surfaces are a given I know). But should it have a long tail? Short? These are the types of theings I want to know.

I would prefer an IMAA legal biplane. And it would be nice if it was glow powerd. I dont want plans, I want to design it so any proportians of wing area to side area etc. would be appreciated.

Thx Collin