Bill,

Thanks for the information. At this point you gave me all the answers I need. I'm just looking for simple and quick until I want to get a lot more involved in building. Even then, I'll probably just buy a kit.

Constructing the web, etc. for the I-beam sounds like much more than I want to get into at this time. Since the strength of the coroplast wing comes from the shape of the wing and construction of the wing material I'll just take the easy route of making the plane bigger than the plans call for.

I'll venture a guess that when considering engine size I can just weigh the plane and compare what's commonly offererd for the same size/weight of commercial kits. Will that work?

elad