Hey dude, I believe you are going to have some work and some physics formula's to work out to get that plane off the ground. One of the main things you will have to figure out first is....and I know this from flying hang gliders for years is, how much wing area you will need to lift the amount of the weight of your plane. And of course this will be based on how much power your motor will produce to give lift to the wing. As was said you may want to consult with your physic's professor...I'm sure he can put you on the right track for the formula's you need. You would be really upset to just start building and then find out you don't have near enough power or wing area to lift the planes weight.

Hope this helps you get started.
Bill