Hi Dan, I am in Lexington this week, are you willing to meet to look over the Blackbird? Bob McClure
________________________________ From: Dan Heath <da...@windstream.net> To: 'KRnet' <kr...@mylist.net> Sent: Friday, December 23, 2011 6:04 AM Subject: RE: KR> Thoughts and ideas on stretching the wingspan I have the Diehl wing skins on my KR2. They are definitely "extended". I see NO issues with them. These extended wings have been flying for many years on many KR, both the 2 and 2S. Also, I understand that Mark L. has extended his wings with the new airfoil. Also, consider that when discussing the "design" limitations of the KR, that it has a "design" gross weight of something like 960 pounds or something near that. This plane is consistently flown at 1200 pounds gross, or more. I am not recommending that, but I know that many KR are coming in at near 800 pounds empty weight. Mine is 750 empty and fly's great with 185 pounds of me and 21 gallons of fuel. I think, and I know someone will correct me if I am wrong about this, that the RAF48 has a lower stall speed than does the "new wing". If you are shooting for "Light Sport", you will have to build it very light and will have to use the longer wings for a lower stall speed as there is no way you will even have a chance of getting there with the stock KR2 or 2S. Having said that, keep in mind that there is a very strong move by EAA and AOPA to allow another category of operation that will allow you to fly without having to get an FAA medical. That may take a while. You may want to consider building a plane that already meets the LSA category qualifications as you may spend a long time and a lot of money building a KR, only to find out that you cannot meet the stall speed requirement. See N64KR at http://KRBuilder.org - Then click on the pics See you at the 2012 - KR Gathering in Mt. Vernon, Il ? MVN ? 40th Anniversary There is a time for building and it never seems to end. Daniel R. Heath - Lexington, SC -----Reply Message----- DO NOT DO IT. The design was for what it is. Stresses calculated for the existing span. _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
