>Wouldn't an aileron, that was hinged with a flexible aluminum plate, be >more susceptible to flutter at the speeds the current crop of KRs are >attaining?
Flutter is primarily a function of the natural frequency of vibration. A stiffer system would increase the natural frequency so a plate hinge might in fact be less likely to flutter. But on the other hand, I have never thought that much about it. Composite construction does not lend itself to this type so I am not worried one way or the other. Don Reid - donreid "at" peoplepc.com Bumpass, Va Visit my web sites at: AeroFoil, a 2-D Airfoil Design And Analysis Computer Program: http://aerofoilengineering.com KR2XL construction: http://aerofoilengineering.com/KR/KR2XL.htm Aviation Surplus: http://aerofoilengineering.com/PartsListing/Airparts.htm EAA Chapter 231: http://eaa231.org Ultralights: http://usua250.org VA EAA Regional Fly-in: http://vaeaa.org

