Larry Flesner wrote: > Questiion. Was and by how much was the tail area enlarged in the 2S > over the KR2? Mark, was your tail volume enlarged over the 2S? If > anyone has the numbers I'd be curious how my standard KR2 tail area on a > 24" stretch fuselage compares the the 2S.
Yes, my plane is more stable as a result of the longer horizontal stab, plus the extra few inches added to the fuselage, and the more forward sweep to my wings (due to adapting the new airfoil to the existing spars). See the link below for details and how to figure it out.
I calculated all that stuff for the KR2 vs the KR2S twenty years ago or so, but am too busy (and lazy) to do it again. I got this from Pazmany's book, which the link below refers to. I can definitely say that my KR2S (and most others, I'm sure) is a lot more stable than the KR2 that I'm now flying, and the KR2 has a "forward of center" CG almost all the time.
See link: https://www.eaa62.org/technotes/tail.htm#:~:text=For%20the%20Vertical%20Tail%20Volume,area%20and%20b%20%3D%20wing%20span Mark Langford [email protected] http://www.n56ml.com Huntsville, AL _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/[email protected]/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to [email protected]
