Any SBD nuts out there see John Hazel post on "Related Aerodynamics"? Son Cody and I were heavy into derby several years back. I accumulated quite a box full reference material, research data, past Derbytech magazines (Brower and Finwall) etc. I look forward to passing on our goodie pile of info to anybody who is serious about trying to win in derby. If interested, or know anybody who might be, let me know. I have some hardware (alignment tools, wheels etc.) that can go also. Jerry Robertson Flagstaff, Az. PS I'll be off the computer from 8/21 thru 9/12. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]