Years ago I read the book "Understanding Polars without Math". Let me whole heartedly recommend this book. It's a wealth of information and really doesn't require any math. None believe it or not. The book answered some questions and shed quite a bit of light on airfoils and reading polars. Very useful. Bill Swingle [EMAIL PROTECTED] Janesville, CA RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
