Ok new question, but it goes along with my first post.

I have a sort of experimental wing design in my head. I would like to test it out, but I don't want to build the whole thing just to find out its crap when it crashes. Is there any way I can go about getting a rough idea of its performance without actually building/flying it?

I'm thinking along the lines of software, or like I mentioned before formulas I can run through myself.