> I was surprised to note that you have no intermediate ribs between the > spars in the outer section.
A lot of people are suprised about the missing ribs. They do contribute a lot, and I wouldn't hesitate to put them in if I were you, especially considering the minimal weight. Being carbon fiber, my wings are really tough, and the two spars are tied together with a piece of quarter inch plywood at the tip (the template), not to mention all of the double skin, so I'm not worried about mine at all. But by all means, put the ribs in... Mark Langford, Huntsville, AL N56ML at hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford