Like I said, Check with RR, Virg On Wed, 11 Oct 2006 10:08:59 -0500 "Mark Langford" <n5...@hiwaay.net> writes: > VIRG wrote: > > > So many were stretching the "2" that she had the REDISIGN > > done to protect herself. This was not a modification but a > REDISIGN. > > I really don't know how you could call the S plans a "redesign" of > the KR2. > The differences are minor, mostly involving the strengthening of the > > firewall to accomodate larger engines (and I believe that was done > by a > newsletter subscriber much earlier), changing the sweep of the wing > to > accomodate the Diehl skins (and I believe Dan did that himself, > years > before), stretching the fuselage 2" in front of the main spar and > 14" aft of > the main spar (and this was accomplished by others earlier by simply > > stretching it), etc. Best I can tell, Roy Marsh built the first > "KR2S", and > the plans were updated (with the "supplement") to document it. But > Marsh > used KR2 sized tail surfaces (but an entirely different main wing > airfoil). > I think Kevin Kelley "designed" the larger S tail surfaces that now > appear > in the supplement to improve pitch stability. It's my understanding > that > Roy's plane was used as the plug from which RR's premolded parts > molds were > pulled from (excluding wings). > > I have made no "definitive" statements above because I don't have > any info > in front of me and am running on memory, but that's what I remember > of the > sequence of events, mostly having talked to the folks mentioned > above. Feel > free to correct me if I'm wrong in the details. > > It seems to me that the S evolved from within the builder community, > > improving one area at a time until we had the S. KRnet has > continued the > evolution, and now all one has to do is start at www.krnet.org and > look at > the websites to see how to make the bird of your dreams, taking your > pick of > engines, canopy styles, gear, panels, control systems, etc. KRnet is > far > better than a set of drawings. I'm convinced that very few new KRs > would > be under construction were there no KRnet. > > As a mechanical design engineer who's quite familiar with CAD work, > I've > been tempted to create a new set of drawings that are accurate and > detailed > enough to remove all guess work (I even volunteered to do that once > for RR), > but I'm now at the point that I would build the plane differently in > a lot > of ways. I plan to build another plane that is similar in size and > > construction to the KR, but will by my own design in every way. > Many folks > would argue that I've already built that plane, but now that I've > built and > flown it, I know what I would do differently, including the best > ideas from > other KRnet builders. I will create models and drawings for it as I > go, and > after successful flights I'll make them available to others (for > sale), as > well as parts, including composite parts, although I realize that > most > builders prefer to make many of these parts themselves. That will > be > several years from now, however, but at least nobody will be able to > > complain about not being able to buy plans, parts, or obtain > technical > support. This is not an effort to get rich off the builder > community (just > take a look at how many experimental aircraft companies actually > succeed), > but more of an attempt to continue the evolution, as well as my own > > aerodynamic and mechanical education... > > Mark Langford, Huntsville, Alabama > KR2S N56ML @ www.N56ML.com > 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 > >
Virgil N. Salisbury - AMSOIL www.lubedealer.com/salisbury Miami ,Fl
