From: krnet-bounces@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 346, Issue 226 Date: 12/1/2004 8:59:42 PM Send KRnet mailing list submissions to krnet@mylist.net To subscribe or unsubscribe via the World Wide Web, visit http://mylist.net/listinfo/krnet or, via email, send a message with subject or body 'help' to krnet-request@mylist.net You can reach the person managing the list at krnet-owner@mylist.net When replying, please edit your Subject line so it is more specific than "Re: Contents of KRnet digest..." Today's Topics: 1. dumb mistake #??? (Jack Cooper) 2. spars (John Lindner) 3. Re: spars (Robert L. Stone) 4. canopy construction (Fritz) 5. Still building Ailerons (Dan Heath) 6. canopy constr. (Fritz) 7. Re: Still building Ailerons (Fritz) 8. Re: spars (gleone) ---------------------------------------------------------------------- Message: 1 Date: Wed, 1 Dec 2004 18:14:29 -0500 From: "Jack Cooper" Subject: KR> dumb mistake #??? To: "KR builders and pilots" Message-ID: <410-220041231231429906@earthlink.net> Content-Type: text/plain; charset=US-ASCII Today was a beautiful day in North Carolina. I moved the KR out in the driveway and was sanding. The vibration of the sander caused the tail to vibrate off its stand and the stand punched a hole in the elevator. Oh well, its only fiberglass and we KR builders are good with fiberglass. The bottom side of the elevator had already been painted so I could have done without that. Jack Cooper kr2cooper@earthlink.net Why Wait? Move to EarthLink. ------------------------------ Message: 2 Date: Wed, 1 Dec 2004 19:03:33 -0500 From: "John Lindner" Subject: KR> spars To: "KRnet" Message-ID: <000d01c4d802$5d58a040$0200a8c0@solarium> Content-Type: text/plain; charset="iso-8859-1" What's the common thinking about making the main spar one piece? I don't mean a solid spar, just constructing the built-up spar 17' long(KR-1) insead of doing it in three pieces. I'd like to do this for some peace of mind (I don't completely trust the WAFs, and no amount of reasoning will convince me otherwise). I also plan to leave the wing one piece by not cutting it open in the first place. The archives seemed unhelpful for me on this issue. Thoughts? John Lindner jrlindner@comcast.net ------------------------------ Message: 3 Date: Wed, 1 Dec 2004 18:46:35 -0600 (Central Standard Time) From: "Robert L. Stone" Subject: Re: KR> spars To: Message-ID: <41AE65EB.000006.01968@YOUR-AT5QGAAC3Z> Content-Type: Text/Plain; charset="iso-8859-1" John, If you know any structural mechanical engineers, get one of them to look at the wing attach system on all KR aircraft and they will tell you it s the strongest in existance. If you saw what was holding the wings on some factory certified aircraft, you would not want to fly any of them. To the best of my knowledge there is no history of faillure in this area, at least none has ever been reported. Bob Stone, Harker Heights, Tx rstoner4@hot.rr.com -------Original Message------- From: KRnet Date: 12/01/04 18:03:10 To: KRnet Subject: KR> spars What's the common thinking about making the main spar one piece? I don't mean a solid spar, just constructing the built-up spar 17' long(KR-1) insead of doing it in three pieces. I'd like to do this for some peace of mind (I don't completely trust the WAFs, and no amount of reasoning will convince me otherwise). I also plan to leave the wing one piece by not cutting it open in the first place. The archives seemed unhelpful for me on this issue. Thoughts? John Lindner jrlindner@comcast.net _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html ------------------------------ Message: 4 Date: Wed, 1 Dec 2004 20:01:52 -0500 From: "Fritz" Subject: KR> canopy construction To: Message-ID: <000601c4d80a$82fbd030$01fea8c0@MillFritz> Content-Type: text/plain; charset="iso-8859-1" Let me try again, I understand a Todd's canopy is fairly thin and flexible.My original question was if I could build the canopy surround before I installed the plexiglas. It appears that most guys glue it in first,I can't see myself lying on my back trying to reinforce the surround. sin. Fritz ------------------------------ Message: 5 Date: Wed, 1 Dec 2004 20:47:08 -0500 (Eastern Standard Time) From: "Dan Heath" Subject: KR> Still building Ailerons To: "krnet@mylist.net" Message-ID: <41AE741C.000007.00232@DANHOMECOMPUTER> Content-Type: Text/Plain; charset="iso-8859-1" Well, no paint on the wings yet. I am hung up on these ailerons. There is much more finishing and sanding and filling, than I thought there would be. And now, I find that my old weights will not balance to 100%, so I am going to have to make new ones. What a bummer. Would it not be really nice to just have to do something, just one thing, just one time and be done with it? I have found out one thing about the warping on the ailerons. Ours are as if you had cut them out of Dan Diehl wing skins. They sat in the garage and shop for over 3 months with no warping. As soon as I installed the spar in them, they started warping. So, I took them in the house and the warping stopped and even returned to mostly straight. So, I am keeping them in the house until they get installed just before the plane goes to the airport. I am hoping that covering them with paint, will stop the warping, but if it is heating and cooling, then I have no chance and I still will never understand why it happens to me and Jerry and not to all the ailerons out there. Anyway, a few more weeks of this sillyness and I can get on to the real stuff. Our upholstery is almost finished and I am really pummpped about seeing how it is going to look when it is all installed Keep on building cause the YYYYYYYYYEEEEEEEEEHAAAAAWWWWWWWSSSSSSSS are waiting. See N64KR at http://KR-Builder.org - Then click on the pics There is a time for building and a time for FLYING and the time for building has expired. Daniel R. Heath - Columbia, SC See you in Mt. Vernon - 2005 - KR Gathering ------------------------------ Message: 6 Date: Wed, 1 Dec 2004 20:58:35 -0500 From: "Fritz" Subject: KR> canopy constr. To: Message-ID: <003b01c4d812$72161fc0$01fea8c0@MillFritz> Content-Type: text/plain; charset="iso-8859-1" Dan, I think we had a terminology problem here,you have answered my question, what I was up in the air about was if the canopy bubble had to be attached to the frame first,and then the frame bent to fit the fuse.I have no idea how flexible the bubble is. Thank You Fritz KR-2 in N.E. Pa. ------------------------------ Message: 7 Date: Wed, 1 Dec 2004 21:11:33 -0500 From: "Fritz" Subject: Re: KR> Still building Ailerons To: "KRnet" Message-ID: <004a01c4d814$44fa0cc0$01fea8c0@MillFritz> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Iv'e worked on composite materials since the 50's and the only way this ever happens is with dissimilar thicknesses in your resin attachment points.In other words keep all fillets and wraps equal top to bottom,side to side,whatever. ----- Original Message ----- From: "Dan Heath" To: Sent: Wednesday, December 01, 2004 8:47 PM Subject: KR> Still building Ailerons > Well, no paint on the wings yet. I am hung up on these ailerons. There > is much more finishing and sanding and filling, than I thought there > would be. And now, I find that my old weights will not balance to > 100%, so I am going > to have to make new ones. What a bummer. Would it not be really nice to > just > have to do something, just one thing, just one time and be done with it? > > I have found out one thing about the warping on the ailerons. Ours are > as > if > you had cut them out of Dan Diehl wing skins. They sat in the garage and > shop for over 3 months with no warping. As soon as I installed the spar in > them, they started warping. So, I took them in the house and the warping > stopped and even returned to mostly straight. So, I am keeping them in the > house until they get installed just before the plane goes to the airport. > I > am hoping that covering them with paint, will stop the warping, but if it > is > heating and cooling, then I have no chance and I still will never > understand > why it happens to me and Jerry and not to all the ailerons out there. > > Anyway, a few more weeks of this sillyness and I can get on to the > real stuff. Our upholstery is almost finished and I am really pummpped > about seeing how it is going to look when it is all installed > > Keep on building cause the YYYYYYYYYEEEEEEEEEHAAAAAWWWWWWWSSSSSSSS are > waiting. > > See N64KR at http://KR-Builder.org - Then click on the pics > > There is a time for building and a time for FLYING and the time for > building > has expired. > > Daniel R. Heath - Columbia, SC > > See you in Mt. Vernon - 2005 - KR Gathering > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > > please see other KRnet info at http://www.krnet.org/info.html > ------------------------------ Message: 8 Date: Wed, 1 Dec 2004 20:23:57 -0700 (Mountain Standard Time) From: "gleone" Subject: Re: KR> spars To: "KRnet" Message-ID: <41AE8ACD.000004.03752@YOUR-FD6NVJCER4> Content-Type: Text/Plain; charset="iso-8859-1" LIke you, I don't trust the WAF's so I'm reinforcing them with carbon fiber cloth. Actually, I'm doing the whole spar with a layer of it and a double wrap (12 inches deep) on the spar ends where the WAF's are located. I think this will put my mind at ease just a little. "Michael Moore is a living example to NEVER trust ANYONE who's bigger around than they are tall!" -------Original Message------- From: John Lindner Date: 12/01/04 17:01:59 To: KRnet Subject: KR> spars What's the common thinking about making the main spar one piece? I don't mean a solid spar, just constructing the built-up spar 17' long(KR-1) insead of doing it in three pieces. I'd like to do this for some peace of mind (I don't completely trust the WAFs, and no amount of reasoning will convince me otherwise). I also plan to leave the wing one piece by not cutting it open in the first place. The archives seemed unhelpful for me on this issue. Thoughts? John Lindner jrlindner@comcast.net _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 346, Issue 226 *************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================