At 09:28 AM 4/25/2005, you wrote: >Does any one know where I can find information on effectiveness or >efficiency of wing tips? Is there a consensus on the best wing tip for the >KR2S? Any test results? Does the wing section make a difference for the >best tip?
I don't have the reference in front of me, but when you combine simple to build and efficiency the best is probably a triangular extension that is approximately as long as the tip chord. The outer end of the extension has the same profile as the tip airfoil but it is only a few inches long. Steve Whitman used them on his later designs. 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 State Fly-in: http://vaeaa.org
