At 06:21 PM 11/9/2004, you wrote: > Don Reid may chime in as he did a lot of modeling on the ELF(1) 0414F. >But he went with the NACA747A314 on his KR-SXL. > > Several weeks back I did stop at the K.S.P. post in Richmond and got >direction to Your house but no one was home. I was going to chew the fat and >BS.
There is a lot that is good with the NFL-0414F, but there is no such thing as a perfect airfoil. They just do not exist. Each airfoil is a collection of compromises and design assumptions. They came be optimized for one very narrow range of flight conditions. At some other set of conditions, another airfoil would be a better choice. Like I said earlier, I picked the NACA 747a315 before I started to study airfoil design. If the rest of the message was intended for me, you should contact me directly. Don Reid - donreid "at" peoplepc.com Bumpass, Va Visit my web sites at: AeroFoil, a 2-D Airfoil Design And Analysis Computer Program: http://www.eaa231.org/AeroFoil/index.htm KR2XL construction: http://users.erols.com/donreid/kr_page.htm Aviation Surplus: http://users.erols.com/donreid/Airparts.htm EAA Chapter 231: http://eaa231.org Ultralights: http://usua250.org VA EAA State Fly-in: http://vaeaa.org
