We very highly recommend Barnaby Wainfan's BW 05 02 09. Smoothed coordinates (200 points) are on our web site. According to XFoil, this section has a zero lift angle of -0.33 degrees and a pitching moment of 0.014. The pitching moment is sufficient for stability and achieves low drag. The area near the trailing edge is thick enough for a strong sheeted structure. We've used it on the original Blackbird (2 meter span) and our latest Blackbird XC (2300 sq. ins.) with great success.
All of the BW 05 02 09 information is available from links on the B2Streamlines home page <http://www.b2streamlines.com>.
What's the best airfoil for a plank flying wing, built-up not bagged?
Rich Border
-- B^2 B2Streamlines.com Bill & Bunny Kuhlman 'a resource for aircraft modelers' [EMAIL PROTECTED] [EMAIL PROTECTED] P.O. Box 975 http://www.b2streamlines.com Olalla WA 98359-0975 USA RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
