Mark Drela wrote:
>That's 'cause the AL and BD wings were designed >for tip stall margin in a tight slow turn, not >for span efficiency. In a turn you have >a yaw rate present, and there's also a sideslip >which interacts with the dihedral angles. >The resulting spanwise load looks VERY different >from the level-flight distribution, and strongly >depends on the dihedral distribution. This raises a question in my mind regarding the Polecataero WindDancer which, I believe, is based on the AL design (correct me if I'm wrong here). Given that the wing can be constructed as poly (rudder-elevator) or "flat" (aileron) using the same airfoil (ribs), which is the design optimized for? Or does it not make much difference? And while I'm on the topic, how well does this airfoil respond to TE camber adjustment? BTW, I have a (poly) WindDancer, and I'm *very* happy with the plane. - John Leigh 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.
