I have been thinking of using Kasper Wing-style rudders: http://www.members.home.net/twitt/wkasper.htm A similar rudder, simply activated by a cord (run through a thin tube) pulled outward by a central servo to increase the wingtip drag and lessen the lift locally, should be possible to make from Coroplast, or similar material! With two such servos one could use them as very effective airbrakes, too! The most interesting part of the Kasper Wing is actually the leading edge flap, that opens upward forward (a similar device have been sketched for the next generation naval fighter from Boeing - a STOL/VTOL delta of quite different proportions). These maintain lift by reversing the flow over the wing, but only works on swept wings (hint to all Zagi-ists!), to attain very high lifts and incredibly tight loops! Tord, Sweden <URL:http://www.aricraft.com/tord/tord.html> -- If reply difficulties - use [EMAIL PROTECTED] Tord S. Eriksson, Ovralidsg.25:5, S-422 47 Hisings Backa, Sweden RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
