While a list of airfoils with layman descriptions wouldn't be too difficult to make; your second request is much tougher. Understanding "why certain airfoils are used together blended in a wing and why" is a very large question. There are guys who spend careers doing exactly that. It takes BIG UGLY mathematics to do it well.
A basic understanding of polars will give some insight into why blending foils can be desirable. But not enough to really make positive gains by doing it. Blending can be done with rules of thumb and eyeballing. But that usually doesn't gain much unless the builder gets lucky. Which does happen. Generally speaking the odds of success are more in your favor if you pick a foil and then design your own planform. Fortunately, ignorance can be bliss. I designed a plane once that I really liked. I enjoyed flying it and thought it a generally fun airplane. But once I flew it along side other planes; I realized my design was basically a dog. Bill Swingle [EMAIL PROTECTED] Janesville, CA RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
