It may be that with the short span that 1-1/2″ x. Make any changes needed from results there.Ģ) Decide on tubing sizes and cable bracing methods, where used.Īt this point I will need to evaluate the tubing size/weights for “complexity vs benefit”.
Maybe the L/D will be in the neighborhood of a large paraglider.ġ) Test the flight performance in a 1/5 scale model. I’m assuming a low sink rate with a glide ratio somewhere between that of the old standard rogallo and today’s single surface flex wings. Shooting for a all up weight of less than 40 lbs using thin wall 7075 aluminum tubing and thin light sail material. This is strictly a “training hill” or “dune gooning soaring” glider. Many people taught themselves or took lessons with gliders that were easy to ground handle and fly but lacked the good parts of the fixed camber airfoil (battens) and reflex of today’s flex wings. My intent is to build a glider so easy to ground handle with good roll control response in flight and good pitch damping + slow flight and landing, that we almost return to the days of the rogallo but without the bad characteristics of that flat flex wing design.
