Forgot to attach image of the type of pins I am refering to: [image: image.png] [image: image.png]
https://www.globalspec.com/learnmore/building_construction/building_supplies/fasteners/hitch_pins_linch_pins Regards שָׁלוֹם עֲלֵיכֶם (Shalom aleichem) Michael L Griffin mileg...@gmail.com Fax : 086 733 0650 Cel : +27 83 462 0462 Please consider the environment before printing this email He who play in root, eventually kill tree. Linode Private Server :: http://goo.gl/OnpGMS EvE Online 21day trial :: http://goo.gl/TAZSJ8 On Mon, 14 Aug 2023 at 11:49, Michael <mileg...@gmail.com> wrote: > Greetings > > I have done some digging on the KR2 folding wings and while the actual > folding mechanism is reasonably easy (See Philip's web link); the quick and > *safe* detach and reattach the WAF bolts has been the challenge. True I > can simply spend an age detaching and reattaching the wings and securing > the WAF bolt's but to me, that defeats the purpose of folding wings. My > use case is to trailer-hangar my KR2 (ZS-VVT) for ease of storage and > potentially the flexibility of storing at home. > > I am no engineer so there may be a simple solution that I am unable to see. > > The 2 scenario's I have researched: > > 1) If it were possible to simply remove the lower WAF bolts (for example, > a secure pin & cotter-pin like the KitFox and others) and rotate upwards > that would be great. The challenge I am unable to overcome is the top > forward and aft WAF's pivot angles do not align sufficiently to allow for a > hinge motion. Tilting the spar's to align them may be an option to align > the hinge movement but not feasible for exiting KR2's and I have no idea of > what doing so will do to the design, performance and most importantly > safety of the KR2. Tilting the spars is a radical deviation from the > plans. Personally, tilting the spar is not viable. > > 2) A potentially more viable solution is replacing the WAF bolts with pins > enabling you to rapidly remove all the WAF bolts, pull the wing out a > little to clear the WAF brackets and rotate the wings up & backward (like > Philip's Folding wing link shows). This would be ideal for trailering & > reducing hangar space. The challenge I see is doing so without > compromising safety. Replacing the WAF bolts with a hitch-pin and > cotter-pin (lynch-pin?) combination for rapid attach & detach is very easy > but doing so *without compromising integrity and safety* of the wing is > paramount and where I ran afowl of my lack of expertise. > > If anyone has a solution, I would be most interested! > > Philip's link: http://www.philskr2.50megs.com/photo5.html > > Regards > > Michael L Griffin > mileg...@gmail.com > Fax : 086 733 0650 > Cel : +27 83 462 0462 > Please consider the environment before printing this email > > He who play in root, > eventually kill tree. > > Linode Private Server :: http://goo.gl/OnpGMS > EvE Online 21day trial :: http://goo.gl/TAZSJ8 > > > On Tue, 8 Aug 2023 at 10:36, Phillip Matheson via KRnet < > krnet@list.krnet.org> wrote: > >> Have a look on my wed page. At the top you will see a folding wing page >> link. This is not a KR, but this aircraft used the same WAF >> >> http://www.philskr2.50megs.com/ >> Hope this helps >> Phil >> >> Sent from my iPhone >> >> On 7 Aug 2023, at 11:23, Ricardo Moura via KRnet <krnet@list.krnet.org> >> wrote: >> >> >> I am new to this group and this is my very first message. >> >> I live in the Greater Cleveland area, have always admired the KR-2 design >> and, until now, it was out of my reach because my goal is to fly an >> aircraft under the LSA rules. However, it seems like the rules are >> broadening up, and now I can see a KR-2S in my future. >> >> I saw the post below by David Boyer (KR> Simply Folding Wing) and noticed >> that the link to the pictures showing his solution is not available anymore. >> >> Can anyone, please, share the pics showing the folding mechanism with me? >> >> Thanks and regards, >> >> Ricardo >> >> >> >> KR> Simply Folding Wing >> David Boyer Tue Jun 21 16:42:55 2011 >> >> I have been talking with badbob0007 (Bob Johnson) and we both would >> like the ability to fold our wings up and directly over the top of the >> canopy for transport. >> This is a basic idea on a double pivot design so the wing can have >> enough clearance to fold. >> >> http://i1081.photobucket.com/albums/j354/davidpob/wing.jpg >> >> I hope this will be useful. Thanks David Boyer >> -- >> KRnet mailing list >> KRnet@list.krnet.org >> https://list.krnet.org/mailman/listinfo/krnet >> >> -- >> KRnet mailing list >> KRnet@list.krnet.org >> https://list.krnet.org/mailman/listinfo/krnet >> >
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