Mark and all, I think we are all missing the point here. The original = design limits went out the door the moment anything other than a VW 60 HP got attached to the nose. Spars are now laminated, fuselages are starched = and widened and have been reinforced more than anything Ken could have = imagined. As these mods came along, technology has also mage great strides. We are = now using Kevlar and Carbon fiber instead of fiberglass. Even at the low end = of the scale S-Glass has 15% more stiffness and 30% more tensile strength = of regular fiberglass cloth and retains these qualities all the way up to = 1500 deg F. Resins themselves have made great strides in improving their properties. Additives have been developed that further enhance their qualities. If anything the KR's of today are some of the safest plans = built designs going in my opinion due in no small part to those on this list = that keep pushing the envelope. If there is one weak link it has to be the = WAF's as they have stayed the same from day one. When looking over the list of KR's the other day with their listed empty weights as well as gross = weights I couldn't help but think that Ken would cringe at these figures. Not a = bad evolution for something that started out as an overgrown model airplane don't you think? Doug Rupert
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