Hi Bud My wings are built that way. It improves forward visibility, reduces that nose down pig look in cruise and provides space under the rear spar to run control rods. My angle of incidence is 2 1/2 at the root reducing to 1/2 at the tip. Rear stabiliser is set at zero. She seems to fly as well as any of the stockers but is definitely not as stable as those with the longer fuselage (KR2S). I think the new airfoil will show its best at the higher airspeeds reached with bigger engines eg., Corvairs, where the RAF48 might approach some sort of limits. At VW speeds perhaps the difference would be less marked. For discussion.
John The Martindale Family 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 email: johnja...@optusnet.com.au ----- Original Message ----- From: "Charles Buddy & Cheryl Midkiff" <c.midk...@verizon.net> To: "KRnet" <kr...@mylist.net> Sent: Wednesday, April 20, 2005 2:45 AM Subject: Re: KR> Stability > Mark, > Have you heard of anyone who has used the Diehl wing skins, or stock home > made wings, with the RAF48 airfoil and has also raised the rear spar the > 3/4" yet? I'd be curious about the performance differences encountered. > Bud Midkiff > Lynnwood, WA > email: c.midk...@verizon.net > > ----- Original Message ----- > From: "Mark Langford" <n5...@hiwaay.net> > To: "KRnet" <kr...@mylist.net> > Sent: Tuesday, April 19, 2005 8:57 AM > Subject: Re: KR> Stability > > > >>Major instability? Please throw out some guidance. > > > > But to answer your question Ray, there is no shame in using the Diehl wing > > skins, and that's a great reason to stick with the RAF48, and finish your > > plane quicker. I think if you are building a KR2S, you will be quite > > happy > > with the stability, whether it has the new airfoil system or not... > > > > Mark Langford, Huntsville, Alabama > > see KR2S project N56ML at http://home.hiwaay.net/~langford > > email to N56ML "at" hiwaay.net > > > > > > _______________________________________ > > 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 > > > > > > _______________________________________ > 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
