From: Majordomo@teleport.com[SMTP:Majordomo@teleport.com] Sent: Monday, December 08, 1997 12:40 PM To: john bouyea Subject: Majordomo file: list 'krnet-l' file 'v01.n086' -- From: owner-krnet-l-digest@lists.teleport.com (krnet-l-digest) To: krnet-l-digest@lists.teleport.com Subject: krnet-l-digest V1 #86 Reply-To: krnet-l-digest Sender: owner-krnet-l-digest@lists.teleport.com Errors-To: owner-krnet-l-digest@lists.teleport.com Precedence: bulk krnet-l-digest Monday, September 1 1997 Volume 01 : Number 086 ---------------------------------------------------------------------- Date: Sat, 30 Aug 1997 11:29:11 -0600 From: Adrian Carter Subject: Re: KR: project update Mark Langford wrote: > > KRNetHeads, > > I've spent the last week rediscovering the joys of vinyl ester resin while > glassing my wing tank parts. Vinyl ester is reputed to be fuelproof, with > many years of proof available. This is the stuff that you've bought at > Walmart to fiberglass your car or boat with, but I paid major bucks for the > AS&S version. This is the stuff that gives "fiberglassing" a bad name. > > I knew when it started bubbling after 30 seconds of stirring that this > stuff was a little different. And the odor is, well, noxious. Ventilation > is a must. And after about 5 minutes on your hands (gloves), it gets > really sticky. Everything you touch wants to go with you. Like the > strands of fiberglass in your layup, stirring sticks, cups, etc. I think > that's because this cure rate is so temperature dependent. It's past > experience with this kind of resin that makes people want to build RVs. > The only information on the "label" was the part number, and "mix 1% to > 2.5% hardener depending on ambient temperature". That was sure > enlightening, so I went to the Walmart version which had a whole paragraph. > So, even if you want to mix 1%, how much is that? But this stuff is > promoted before shipping (mine sat on the dock for two weeks waiting for > UPS so a quarter of its two month life was gone when I got it) so it'll > probably cure eventually regardless of mix ratio. Fortunately my > electronic scale has a resolution of 2 grams, so I get 200g of resin, and > sneak up a drop at a time on it to make sure that I'm on an even number. > Then add catalyst with a syringe till I get 2g more. > > Anyway, seems like I'm getting more pinholes than I did with Safety Poxy, > even though I'm laying it up face down on glass. Incidently, for those who > haven't tried it, PVA is a great mold release. It's just a spray on water > soluble vinyl that you apply after waxing the glass. This way you only > have to wash the release off of your parts, rather than having to use nasty > chemicals to remove the wax. Tomorrow I'll do an experiment using peel > ply. I know it will soak up lots of my desirable excess epoxy, but I'm > hoping the surface tension and visual indication that I get after I > squeegee it will be helpful to eliminate pinholes. I also have an > apparently bad batch of fiberglass, since a few spots seem immune to > wetting out with resin, despite being bathed from both sides. So tomorrow > we try it another way... > > My fuselage, tail feathers, canopy, front and aft decks are done and pretty > smooth. It all gets a coat of featherfil soon. Stub wings and gear are in > the works now, with the wing tanks being the major obstacle. > > Maybe it'll fly by Gathering time next year. > > Mark Langford, Huntsville, AL > email at langford@hiwaay.net > KR2S project construction at http://fly.hiwaay.net/~langford Hi Mark, Looks like your getting your first experience with vinylester. I really liked working with this stuff and it has an excellent wetout with absolutly no pinholes. As a suggestion, pour yourself about 4 plastic glasses of 1" of resin and then using your syringe if you have a 2-1/2 or 5cc size try different cc's of the catalyst MEKP in each glass and monitor your setup times. I found that 20-30 mins is too late to try and work it any further. By that time it starts to set up. Also, if you having problems with it wetting out, could be the type of sizing on the fiberglass fibers. Maybe I've opened up a can of worms with that one but, the chemistry of fiberglassing is a science and you just do not slap any kind of resin on fiberglass and hope it works. Time, temperature and materials one works with are all relevant. That's my two cents worth. I did wear a canister type mask whenever I did work with vinlyester, those fumes can be detrimental to your lungs. But, a real nice system to work with. Good Luck! - -- Adrian VE6AFY cartera@cuug.ab.ca http://www.cuug.ab.ca/~cartera ------------------------------ Date: Sat, 30 Aug 1997 11:22:24 -0700 (PDT) From: ahawkins@axionet.com (al hawkins) Subject: Re: KR: Re: Prop Bolts Too Long? Question At 01:23 PM 8/29/97 -0500, you wrote: >At 09:51 8/29/97 -0400, you wrote: >>Email (repy) to cary@storm.ca > >>... I have to find the right bolts. Bit of a pain up here in >>Canada. Most FBOs (etc) don't stock these items and I don't have the books >>for A,S&S or Wicks. My Wag Aero mag doesn't give lenghts either. Sigh! >> >>- Cary - >> >> >It is a must to get the Wicks and ASS catalogs. > If you can't call them to send you a copy, send me your >snail address and I'll mail an old copy. > >Here is what ASS has to say: (Page66) >AN76 prop bolts - similar to AN3-AN8 bolts except heads drilled 3 ways for >safety wire. Undrilled shank. Stocked in 3/8in diam. >NOTE: AN76 bolts are in low production. If unavailable, AN6H-xxA will be >substituted. > >(My note - you will see that this supposes that prop bolts are all 3/8. >They aren't! 5/16 are used often with VWs and 7/16 bolts have been used on >firebreathing dragons, I believe.) > >(My warning - don't let anybody talk you out of vibration-proofing critical >nuts and bolts - rotation is not necessary - vibration can take the nut off >a bolt FAST!) >Regards > Good point, oil filters are not subject to rotation either but the vibration of the engine will cause it to unscrew. A friend lost his C-150 because of not safety wiring his oil filter, he said it gets real quite when the engine quits, except for the pucker factor. Dave Moore >brian whatcott >Altus OK > > David Moore Turnkey1@mscomm.com Hesperia, California ------------------------------ Date: Sat, 30 Aug 1997 11:22:26 -0700 (PDT) From: ahawkins@axionet.com (al hawkins) Subject: Re: KR: Re: Prop Bolts Too Long? Question At 01:23 PM 8/29/97 -0500, you wrote: >At 09:51 8/29/97 -0400, you wrote: >>Email (repy) to cary@storm.ca > >>... I have to find the right bolts. Bit of a pain up here in >>Canada. Most FBOs (etc) don't stock these items and I don't have the books >>for A,S&S or Wicks. My Wag Aero mag doesn't give lenghts either. Sigh! >> >>- Cary - >> >> >It is a must to get the Wicks and ASS catalogs. > If you can't call them to send you a copy, send me your >snail address and I'll mail an old copy. > >Here is what ASS has to say: (Page66) >AN76 prop bolts - similar to AN3-AN8 bolts except heads drilled 3 ways for >safety wire. Undrilled shank. Stocked in 3/8in diam. >NOTE: AN76 bolts are in low production. If unavailable, AN6H-xxA will be >substituted. > >(My note - you will see that this supposes that prop bolts are all 3/8. >They aren't! 5/16 are used often with VWs and 7/16 bolts have been used on >firebreathing dragons, I believe.) > >(My warning - don't let anybody talk you out of vibration-proofing critical >nuts and bolts - rotation is not necessary - vibration can take the nut off >a bolt FAST!) >Regards > Good point, oil filters are not subject to rotation either but the vibration of the engine will cause it to unscrew. A friend lost his C-150 because of not safety wiring his oil filter, he said it gets real quite when the engine quits, except for the pucker factor. Dave Moore >brian whatcott >Altus OK > > David Moore Turnkey1@mscomm.com Hesperia, California ------------------------------ Date: Sat, 30 Aug 1997 11:22:29 -0700 (PDT) From: ahawkins@axionet.com (al hawkins) Subject: Re: KR: Re: Prop Bolts Too Long? Question At 01:23 PM 8/29/97 -0500, you wrote: >At 09:51 8/29/97 -0400, you wrote: >>Email (repy) to cary@storm.ca > >>... I have to find the right bolts. Bit of a pain up here in >>Canada. Most FBOs (etc) don't stock these items and I don't have the books >>for A,S&S or Wicks. My Wag Aero mag doesn't give lenghts either. Sigh! >> >>- Cary - >> >> >It is a must to get the Wicks and ASS catalogs. > If you can't call them to send you a copy, send me your >snail address and I'll mail an old copy. > >Here is what ASS has to say: (Page66) >AN76 prop bolts - similar to AN3-AN8 bolts except heads drilled 3 ways for >safety wire. Undrilled shank. Stocked in 3/8in diam. >NOTE: AN76 bolts are in low production. If unavailable, AN6H-xxA will be >substituted. > >(My note - you will see that this supposes that prop bolts are all 3/8. >They aren't! 5/16 are used often with VWs and 7/16 bolts have been used on >firebreathing dragons, I believe.) > >(My warning - don't let anybody talk you out of vibration-proofing critical >nuts and bolts - rotation is not necessary - vibration can take the nut off >a bolt FAST!) >Regards > Good point, oil filters are not subject to rotation either but the vibration of the engine will cause it to unscrew. A friend lost his C-150 because of not safety wiring his oil filter, he said it gets real quite when the engine quits, except for the pucker factor. Dave Moore >brian whatcott >Altus OK > > David Moore Turnkey1@mscomm.com Hesperia, California ------------------------------ Date: Sat, 30 Aug 1997 11:22:31 -0700 (PDT) From: ahawkins@axionet.com (al hawkins) Subject: Re: KR: Re: Prop Bolts Too Long? Question At 01:23 PM 8/29/97 -0500, you wrote: >At 09:51 8/29/97 -0400, you wrote: >>Email (repy) to cary@storm.ca > >>... I have to find the right bolts. Bit of a pain up here in >>Canada. Most FBOs (etc) don't stock these items and I don't have the books >>for A,S&S or Wicks. My Wag Aero mag doesn't give lenghts either. Sigh! >> >>- Cary - >> >> >It is a must to get the Wicks and ASS catalogs. > If you can't call them to send you a copy, send me your >snail address and I'll mail an old copy. > >Here is what ASS has to say: (Page66) >AN76 prop bolts - similar to AN3-AN8 bolts except heads drilled 3 ways for >safety wire. Undrilled shank. Stocked in 3/8in diam. >NOTE: AN76 bolts are in low production. If unavailable, AN6H-xxA will be >substituted. > >(My note - you will see that this supposes that prop bolts are all 3/8. >They aren't! 5/16 are used often with VWs and 7/16 bolts have been used on >firebreathing dragons, I believe.) > >(My warning - don't let anybody talk you out of vibration-proofing critical >nuts and bolts - rotation is not necessary - vibration can take the nut off >a bolt FAST!) >Regards > Good point, oil filters are not subject to rotation either but the vibration of the engine will cause it to unscrew. A friend lost his C-150 because of not safety wiring his oil filter, he said it gets real quite when the engine quits, except for the pucker factor. Dave Moore >brian whatcott >Altus OK > > David Moore Turnkey1@mscomm.com Hesperia, California ------------------------------ Date: Sat, 30 Aug 1997 14:09:46 From: Ron Lee Subject: Re: KR: KR2S Cowling At 21:55 97/8/28 -0700, you wrote: >If anyone out there has the KR2S cowling could you measure the distance from >the firewall to the opening for the prop hub for me next time you get a >chance? Thanks! >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >Micheal Mims N133RM has a distance of 30.0" from the aft end of the cowling to the prop hub opening. Not sure if it is a 2S cowling. Ron ------------------------------ Date: Sat, 30 Aug 1997 18:31:53 -0400 (EDT) From: BSHADR@aol.com Subject: KR: Witness marks In a message dated 97-08-30 06:10:43 EDT: << Say has anyone done the red fingernail polish on their KR? A dot > on every bolt (at least on the engine) to see if anything is moving? >> Netters: I'll bet the subject line got ya wondering..... :-) This is done with paint too. I think it is called a "witness mark" I cool way to do this without your wife jumping up and down on your head while she is wearing her golf shoes is to go to the chain autoparts store, in the body and paint section, and get a paint touch up pen/stick. Some have a fine brush on the cap, others are like the paint pencils the junk yard guys use to make parts. Sort of a felt pen gizmo. Anyway, pick your favorite color (for the application) and you got a no fuss way to apply witness marks. Put 'em so you can easily see them on inspections and you be styl'ing... I suppose you could go to your welding supply and by various color heat crayons and mark you exhaust pipes too. Then you could have your copilot crawl out and read your "manual EGT system indicator" for ya....nah, bad idea Randy Stein BSHADR@aol.com Soviet (coined from left wing aiport supporters years ago) Monica, CA ------------------------------ Date: Sat, 30 Aug 1997 19:14:57 -0700 From: Micheal Mims Subject: Re: KR: Re: Prop Bolts Too Long? Question At 11:22 AM 8/30/97 -0700, Al Hawkins wrote: ... I have to find the right bolts. Bit of a pain up here in >>>Canada. Most FBOs (etc) don't stock these items and I don't have the books for A,S&S or Wicks. My Wag Aero mag doesn't give lenghts either. Sigh! >>> >>>- Cary - Al did you have anything to say or did you just want to re-post this message four more times? :o) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Micheal Mims Just Plane Nutts in Irvine Ca. mailto:mimsmand@ix.netcom.com http://www.netcom.com/~mimsmand \ / _\/\/_ _____/_//\\_\_____ F-117 ------------------------------ Date: Sat, 30 Aug 1997 20:25:26 -0700 From: Micheal Mims Subject: KR: Ricky Pitman Forwarded memo about Ricky Pitman. >From: gb >Subject: Ricky Pitman > >Hi Mike, > I don't know if you remember me or not but I am the guy that was >with Ricky and Donna Pitman at the 1996 Gathering in Pine Bluff, AR. I flew with Marty Roberts in his KR and He won the spot landing. > Anyway I would like for you to put the word out to the fellow KRs >that Ricky Pitman went through a double bypass surgery on his heart Aug. 28, 1997 at 3:00pm at the St. Joheph Hosp., 220 Overton Ave. Rm. 5210, Memphis, TN. He is doing ok but he asked if I could get in touch with everyone concern and let them knoew that we are not going to be able to make the Perry, OK trip in Sept. He will be home if all goes well by Sept. 8, 1997. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Micheal Mims Just Plane Nutts in Irvine Ca. mailto:mimsmand@ix.netcom.com http://www.netcom.com/~mimsmand \ / _\/\/_ _____/_//\\_\_____ F-117 ------------------------------ Date: Sat, 30 Aug 1997 21:54:05 -0600 From: jscott.pilot@juno.com (Jeffrey E Scott) Subject: Re: KR: KR2S Cowling On Sat, 30 Aug 1997 14:09:46 Ron Lee writes: >At 21:55 97/8/28 -0700, you wrote: >>If anyone out there has the KR2S cowling could you measure the >distance from >>the firewall to the opening for the prop hub for me next time you get a >>chance? Thanks! >>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >>Micheal Mims > >N133RM has a distance of 30.0" from the aft end of the cowling to the prop >hub opening. Not sure if it is a 2S cowling. > >Ron > N133RM and N1213W both were started prior to the release of the "blessed" version of the KR-2S plans. Both have the smaller KR-2 sized firewall, so a KR-2S sized cowling wouldn't fit. I haven't heard of a cowling designed and sold for the KR-2S yet. This is news to me. BTW, did you get N133RM up in the air yet? I was thinking today would be the day, or at least this weekend. - ------- Jeff Scott - Los Alamos, NM jscott.pilot@juno.com See N1213W construction and first flight at http://fly.hiwaay.net~langford/kjefs.html & http: //www.thuntek.net/~jeb/krpage.htm ------------------------------ Date: Sat, 30 Aug 1997 21:22:55 -0700 From: Micheal Mims Subject: Re: KR: KR2S Cowling At 09:54 PM 8/30/97 -0600, you wrote: >N133RM and N1213W both were started prior to the release of the "blessed" version of the KR-2S plans. Both have the smaller KR-2 sized firewall, so a KR-2S sized cowling wouldn't fit. I haven't heard of a cowling designed and sold for the KR-2S yet. This is news to me. > RR has a bunch of them sitting in the shop, she has had them since I bought my plans. They are much bigger and look more like the Revmaster unit. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Micheal Mims Just Plane Nutts in Irvine Ca. mailto:mimsmand@ix.netcom.com http://www.netcom.com/~mimsmand \ / _\/\/_ _____/_//\\_\_____ F-117 ------------------------------ Date: Sat, 30 Aug 1997 23:57:26 -0600 From: jscott.pilot@juno.com (Jeffrey E Scott) Subject: Re: KR: KR2S Cowling On Sat, 30 Aug 1997 21:22:55 -0700 Micheal Mims writes: > >RR has a bunch of them sitting in the shop, she has had them since I bought >my plans. They are much bigger and look more like the Revmaster unit. >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >Micheal Mims OK, I'm braced for sticker shock... What's the price tag? - ------- Jeff Scott - Los Alamos, NM jscott.pilot@juno.com See N1213W construction and first flight at http://fly.hiwaay.net~langford/kjefs.html & http: //www.thuntek.net/~jeb/krpage.htm ------------------------------ Date: Sat, 30 Aug 1997 23:27:18 -0700 From: Micheal Mims Subject: Re: KR: KR2S Cowling At 11:57 PM 8/30/97 -0600, you wrote: >OK, I'm braced for sticker shock... What's the price tag? > I dont remember but somewhere around $350 I think. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Micheal Mims Just Plane Nutts in Irvine Ca. mailto:mimsmand@ix.netcom.com http://www.netcom.com/~mimsmand \ / _\/\/_ _____/_//\\_\_____ F-117 ------------------------------ Date: Sun, 31 Aug 1997 10:28:29 -0700 From: bmsi@ix.netcom.com Subject: Re: KR: KR2S Cowling Micheal Mims wrote: > > At 11:57 PM 8/30/97 -0600, you wrote: > >OK, I'm braced for sticker shock... What's the price tag? > > > > I dont remember but somewhere around $350 I think. > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Micheal Mims > Just Plane Nutts in Irvine Ca. > mailto:mimsmand@ix.netcom.com > http://www.netcom.com/~mimsmand > > \ / > _\/\/_ > _____/_//\\_\_____ > > F-117 The April 1997 price list says $360. Bruce Campbell Tampa ------------------------------ Date: Sun, 31 Aug 1997 10:24:54 -0700 From: Micheal Mims Subject: KR: 3 view drawings Does anyone out there know of a source for 3 view drawings for various Continental and Lycoming engines? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Micheal Mims Just Plane Nutts in Irvine Ca. mailto:mimsmand@ix.netcom.com http://www.netcom.com/~mimsmand \ / _\/\/_ _____/_//\\_\_____ F-117 ------------------------------ Date: Sun, 31 Aug 1997 12:32:59 -0700 From: Micheal Mims Subject: KR: Wing Fittings Netters, if you go to: http://pw2.netcom.com/~mimsmand/wing.html You can see a few pictures of my wing attach fittings and read a few comments that should help you if you are thinking about building your own. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Micheal Mims Just Plane Nutts in Irvine Ca. mailto:mimsmand@ix.netcom.com http://www.netcom.com/~mimsmand \ / _\/\/_ _____/_//\\_\_____ F-117 ------------------------------ Date: Sun, 31 Aug 1997 20:57:16 -0700 From: Donald Reid Subject: Re: KR: 3 view drawings Micheal Mims wrote: > > Does anyone out there know of a source for 3 view drawings for various > Continental and Lycoming engines? > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Micheal Mims > Just Plane Nutts in Irvine Ca. > mailto:mimsmand@ix.netcom.com > http://www.netcom.com/~mimsmand In "Modern Aircraft Design" by Martin Hollmann, there are three views of Continental IO-550G and C90-12F and Lycoming O-290-D2B. He also says that "For a nominal cost of $10 most engine manufactures will send you complete specs and installation drawings..." Continental Motors/Aircraft Products P.O. Box 90, Mobile Alabama 36601 (205) 438 3411 AVCO Lycoming Division, AVAC Corp, Williamsport PA (717) 327 7124 This is several years old and may not be correct. - -- Don Reid donreid@erols.com ------------------------------ Date: Sun, 31 Aug 1997 20:57:55 -0500 From: Bobby Muse Subject: Re: KR: Re: Prop Bolts Too Long? Question At 01:23 PM 8/29/97 -0500, you wrote: >At 09:51 8/29/97 -0400, you wrote: >>Email (repy) to cary@storm.ca > >>... I have to find the right bolts.- Cary - >> > >(My warning - don't let anybody talk you out of vibration-proofing critical >nuts and bolts - rotation is not necessary - vibration can take the nut off >a bolt FAST!) >Regards > >brian whatcott I agree with Brian. If the bolt are nut is subject to excessive vibration or any rotion, make sure you safety secure as needed. But if you have excessive vibration, don't fly and fix the problem. Bobby Muse(N122B) bmuse@mindspring.com Wimberly, TX ------------------------------ Date: Sun, 31 Aug 1997 19:25:29 -0700 From: Micheal Mims Subject: Re: KR: 3 view drawings At 08:57 PM 8/31/97 -0700, you wrote: >"For a nominal cost of $10 most engine manufactures will send you complete >specs and installation drawings..." > >Continental Motors/Aircraft Products P.O. Box 90, Mobile Alabama 36601 > (205) 438 3411 >AVCO Lycoming Division, AVAC Corp, Williamsport PA > (717) 327 7124 > Thanks I will give them a call on Tuesday! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Micheal Mims Just Plane Nutts in Irvine Ca. mailto:mimsmand@ix.netcom.com http://www.netcom.com/~mimsmand \ / _\/\/_ _____/_//\\_\_____ F-117 ------------------------------ Date: Sun, 31 Aug 1997 19:40:29 -0700 From: Micheal Mims Subject: Re: KR: Re: Prop Bolts Too Long? Question At 08:57 PM 8/31/97 -0500, you wrote: >I agree with Brian. If the bolt are nut is subject to excessive vibration >or any rotion, make sure you safety secure as needed. > >But if you have excessive vibration, don't fly and fix the problem. > > > Bobby Muse(N122B) > bmuse@mindspring.com > Wimberly, TX I agree with everyone! :o) Do what YOU have to do to feel comfortable! Looks like I will have to use safety wire on my KR2S prop because I think I just bought an engine (it was designed to use safety wire to secure the prop bolts) and it aint no VW! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Micheal Mims Just Plane Nutts in Irvine Ca. mailto:mimsmand@ix.netcom.com http://www.netcom.com/~mimsmand \ / _\/\/_ _____/_//\\_\_____ F-117 ------------------------------ Date: Sun, 31 Aug 1997 20:33:39 -0700 From: Micheal Mims Subject: KR: Ken Thomas KR2S Mark Langford, have you heard anything new on Ken Thomas KR2S? DId he ever get the RPM up? I was wondering if he ever said anything about it feeling nose heavy during taxi operations? I was curious because I may be installing a O-290 which will weigh the same or a little less than his Subaru installation. My axles are about 4 inches in front of the forward face of the main spar, oh well I guess I am just a little worried about having to park it like a Long EZ. Speaking of LongEZ's Randy flew down to visit today with a friend in his EZ. VERY nice airplane Randy! I took them on the nickel tour of my KR construction facility and I am sure Randy will post his thoughts on my huge and over weight KR2S! :o) Don't hold back Randy, ...like I have to ask! We had lunch and talked about airplanes and then they headed off to Santa Monica. Sure was a nice day to fly down here in Orange County,..I was a bit jealous to say the least! But just looking at that beautiful EZ motivated me so much I went over to the garage and sanded down all the filler on my aft turtledeck! It looks great but I have two huge blisters on my right hand and I hold Randy 100% responsible! I also manged to build a drilling jig for mounting the wing attach fittings. So I will give you one guess what I will be doing tomorrow! :o) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Micheal Mims Just Plane Nutts in Irvine Ca. mailto:mimsmand@ix.netcom.com http://www.netcom.com/~mimsmand \ / _\/\/_ _____/_//\\_\_____ F-117 ------------------------------ Date: Mon, 01 Sep 1997 05:42:49 -0500 From: Bobby Muse Subject: KR: KR tires I need a pair main tires(LAMB 11x4.00-5) before th KR Gathering. Does anyone have a set for sale? How about GPAS? Bobby Muse(N122B) bmuse@mindspring.com Wimberly, TX ------------------------------ Date: Mon, 01 Sep 1997 09:58:03 -0700 From: Donald Reid Subject: Re: KR: elevator hinges smithr wrote: > 1. Plans call for 9/32 metal (alum.) beyond the 3/16 bolt hole (hinge > axis) for the elevator hinge. If I drill a 5/16 hole for the oilite > bearing modification, is it OK to leave the same 9/32 beyond the hole or > do I need more? (how much more?) > > 2. I am probably going to have to move the axis hole inward about 1/8 on > both hinge pieces (plans call for 7/8 on the 1.25 piece and 5/8 on the > 1" piece) to leave enough metal on beyond the axis hole. Does anyone see > any problem with doing this? I answered one like this some time ago, but I'll do it again since it is easy once you know the method. I will NOT say if it is OK, I am a chicken when it comes to liability and civil tort. (If you think a tort is a pastry, I have some land for sale) Using 6061T6 aluminum, the following numbers represent the ultimate strength in three different ways. Tensile - 42,000 lb/square inch Bearing - 88,000 lb/square inch Shear - 27,000 lb/square inch Assuming a 1 inch wide, 0.125 inch thick lug, with the 3/16" hole in the center of a 0.5 inch radius circle. Then, W = 1.0" D = 3/16" = 0.1875" T = 0.125" E = 0.5" (E is the distance between the center of the hole and the outside edge of the lug, in the direction of the reaction. If the hole is in the center of a circle, E is constant. If it is not in the center, the easiest way to figure it is graphically.) Ultimate tensile strength [ ( W - D ) x T ] x 42,000 = 4,265 pounds Bearing ultimate strength D x T x 88,000 = 2,063 pounds Bolt hole shear 2 x E x T x 27,000 = 3,375 pounds With the same assumptions, except a 5/16" hole in the center of the 0.5" circle, the numbers are Tensile = 3,609 pounds Bearing = 3,438 pounds Shear = 3,375 pounds The bearing strength increases because the bearing surface area increases. This does not consider the bearing strength of the bronze bushing, which is higher (I think) than for aluminum. (No data readily available) The tensile strength decreases because the hole is larger which reduces the amount of metal in the lug. The bolt hole shear does not change since it depends on the center to edge distance. If you displace the bolt hole in one direction like you suggest, the bolt hole shear out will increase in the one direction, but there will be no increase if the load is applied at 90 degrees to the increased dimension. If that is not clear, sketch the lug, draw some arrows to represent the direction of the applied forces, and figure how much metal is between the bolt and the edge of the lug. These strength numbers represent ultimate values. Since aluminum will undergo fatigue failure, assume that the safe working load is 10 percent of the ultimate. I hope this gives enough information to help you out and I am sorry that there are too many lawyers out in the world. - -- Don Reid Bumpass, Va. donreid@erols.com ------------------------------ Date: Mon, 1 Sep 1997 09:44:08 -0700 (PDT) From: Howard Welte Subject: KR: Re:FUN N SUN RACE INFO ??? AFTER READING REPORTS ABOUT THE RACES AT LAKELAND, HOW ABOUT A FIRST HAND REPORT FROM A RACE COMPETATER, HOW DID YOU PREPARE (FLIGHT PLANNING) HOW DID THE PLANE PREFORM ? DID YOU HAVE TO DEAL WITH TRAFIC ? CAN WE GET A BLOW BY BLOW REPORT OF THE RACE ? THIS IS NOT THE FIRST TIME I'VE SEEN KR'S ON THE WINNERS LIST, THAT SHOULD TELL US SOMETHING ABOUT THE DESIGN. HOWARD WELTE ( TRACY,CA. hlwelte@mail.vornet.com ) ------------------------------ Date: Mon, 1 Sep 1997 09:53:46 -0700 (PDT) From: Howard Welte Subject: KR: Re: Ernest Koppe address ? Sorry about taking up Bandwith on the KRNET but I just wanted to let Ernest koppe know what happened to his KR project from 70's sorry to report the project never flow, but the dream and many parts are still alive and kicking. Ernest, drop me your address (E-Mail) Howard Welte ( hlwelte@mail.vornet.com ) ------------------------------ Date: Mon, 1 Sep 1997 12:59:43 -0500 From: "Mark Langford" Subject: KR: vinylester secrets revealed Vinylester Heads, Well, peel ply IS the secret to a pinhole free fuel tank using vinylester resin. I just kept pouring it on (glug, glug, glug...) and put peelply on top. Then poured some more on top of that to act as a lubricant to smooth the peel ply. When I peeled it off, it's perfect!!!!!! I guess it's hard to put aside my epoxy-starving ways. Amazing how I can offer advice on something that I've only used a gallon of so far, isn't it? Thanks for all the advice from Jeff and Adrian and everybody else. Mark Langford, Huntsville, AL email at langford@hiwaay.net KR2S project construction at http://fly.hiwaay.net/~langford ------------------------------ Date: Mon, 1 Sep 1997 13:32:23 -0500 (CDT) From: Steven A Eberhart Subject: Re: KR: 3 view drawings The current issue of Sport Pilot has three views for the Jabiru. Looks like a nice KR engine. Not as pricy as the Rotax 912 but still expensive. Steve On Sun, 31 Aug 1997, Micheal Mims wrote: > Does anyone out there know of a source for 3 view drawings for various > Continental and Lycoming engines? > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Micheal Mims > Just Plane Nutts in Irvine Ca. > mailto:mimsmand@ix.netcom.com > http://www.netcom.com/~mimsmand > > \ / > _\/\/_ > _____/_//\\_\_____ > > F-117 > > ------------------------------ Date: Mon, 1 Sep 1997 16:51:36 -0400 (EDT) From: BSHADR@aol.com Subject: KR: dont read this!!! Well maybe, a KR report... In a message dated 97-09-01 05:50:40 EDT, you write: << Has anyone else noticed that Mike and Randy have altogether too much free time on their hands? ;o) >> Hey...I represent that remark!!! On a more useful subject: I traveled as ballast in a buddies EZ to go down to see Mike Mims project. Cost me lunch and I had to go fly his bird a couple hours afterwards too (sigh) - but more about that type of EZ torture some other time. I quick note is in order about Mike’s bird. Nice job Mike. Canopy ala Troy Petteway looked super. Interior finish work, so far, is Bobby Muse quality. Both them boys know how to do super-detail finish work. Wood work throughout is exceptional. Mike has a good eye and knows how to accomplish perfection. His progress is exceptional considering he only worked all of last spring fall & winter. His kids come to stay with him in the summer months, so he makes little progress during the summer time. The single car garage is "cozy" proving once again that you can build a KR in snug digs. He has a vaulted attic space, so if he can take a hint, he’ll add some blocks (pulleys to you non yachty types) and lines (rope) to the rafters. He could winch the boat up out of the way and keep on building the wings at home, instead of going to the airport across town (a .5 - 1.5 hour trip one way) each time to work on his KR. The Piper gear legs make for a slick gear installation. I like the looks of the AS&S tail wheel spring too. I think it is a more durable option to that problem. In real life, a widened KR2S looks like a KR2. The proportions are so similar, that your mind’s eye wants to reach out and stretch the tail back another 12-18 inches. It you look at the Celebrity, you get the same sense of guppy"ish". This is not a slight, just an observation. If you look at Mike’s web page, you can see what I’m talking about, it just struck me as more obvious in the composite (so to speak) flesh. The interior room increase is spectacular. I think Mike made the right choices, and I’ll be able to confirm this in short order. I hear he is motivated to get the bugger (Too many British art movies recently) done! All and all, a good looking project with a huge amount of progress since the last gathering. Keep up the good work Mike. Maybe we can fly your KR to the 98 Gathering (HINT HINT). Sorry Rob, I was the first to grovel, so I get the ride! Don’t worry, with my luck, Michelle will bump me and take the seat herself. Randy Stein BSHADR@aol.com Soviet Monica, CA ------------------------------ Date: Mon, 1 Sep 1997 16:58:32 -0400 (EDT) From: BSHADR@aol.com Subject: Re: KR: Re:FUN N SUN RACE INFO ??? In a message dated 97-09-01 15:57:59 EDT, Howard wrote: << AFTER READING REPORTS ABOUT THE RACES AT LAKELAND, HOW ABOUT A FIRST HAND REPORT FROM A RACE COMPETATER, >> Howard: Troy is not on KRnet. I heard he just changed jobs and moved to a new locality, so I don't think he'll post it hear. He is going to the gathering, so we'll ask him in one of the sessions to give us a rundown. How about coming to the Perry OK 97 Gathering yourself? I can promise your fill of KRs and KR crazies too. If you need mor info, go to: http://www.geocities.com/CapeCanaveral/9904/ This page is hosted by Brian Bland. It has the poop, or Email mail me direct with specific questions. Randy Stein BSHADR@aol.com Soviet Monica, CA ------------------------------ Date: Mon, 01 Sep 1997 16:23:14 +0000 From: Ernest Koppe Subject: Re: KR: Re: Ernest Koppe address ? At 09:53 AM 9/1/97 -0700, you wrote: >Sorry about taking up Bandwith on the KRNET but I just wanted to let >Ernest koppe know what happened to his KR project from 70's > >sorry to report the project never flow, but the dream and many parts >are still alive and kicking. > >Ernest, drop me your address (E-Mail) > >Howard Welte ( hlwelte@mail.vornet.com ) > >Hello Howard, Just a note to ask which project you are referring to...and to give you my e-mail address. You (and anyone else) may e-mail me at one of the following addresses, in the order of preference listed: 1. ekoppe@flash.net 2. ernest.koppe@sba.gov 3. ekoppe@hotmail.com The first two will get to me while I'm in my home area, the "Hotmail" will reach me when I have access to the WWW on the road (which is more often than I like). For those who don't know, the HotMail service is "free", you just have to get a few commercials with the service. As for the "project"...My original KR-1 became the "rebuild' of Ken's KR-1 and is the aircraft that was donated to the EAA museum. It flew vey well except for a cooling problem with the Turbo-Revmaster 2100. My KR-2 was built with a partner, Bob Stone and is the KR shown flying on my KR webpage (www.flash.net/~ekoppe/krpage/krpage.html). I admit I assisted several other builders that never finished their KRs but I never claimed an ownership of those projects as I was just a helping hand. Ernie ------------------------------ Date: Mon, 1 Sep 1997 22:31:31 -0400 (EDT) From: LDeckert@aol.com Subject: Re: KR: vinylester secrets revealed Hi folks, I've been following the vinylester thread and trying to find the mixing instructions that I got from Dan Diehl (I bought his wing skins). I couldn't find the thing, but it was something like 4 cc's of MEK to 8 oz of vinylester, depending on the temp and cure time you want. If I can find his phone, I'll give him a call and see what the ratio is. Larry Deckert In a message dated 97-09-01 14:11:17 EDT, you write: << Vinylester Heads, Well, peel ply IS the secret to a pinhole free fuel tank using vinylester resin. I just kept pouring it on (glug, glug, glug...) and put peelply on top. Then poured some more on top of that to act as a lubricant to smooth the peel ply. When I peeled it off, it's perfect!!!!!! I guess it's hard to put aside my epoxy-starving ways. Amazing how I can offer advice on something that I've only used a gallon of so far, isn't it? Thanks for all the advice from Jeff and Adrian and everybody else. Mark Langford, Huntsville, AL email at langford@hiwaay.net >> ------------------------------ Date: Mon, 1 Sep 1997 21:59:29 -0500 From: "Mark Langford" Subject: KR: vinylester ratio I used 2g per 200g, or 1% by weight. Seems to have worked great in my 73 degree basement, and for the quick cure, a trip to my curing oven (the black asphalt driveway at mid day) does the job in an hour or so. I had 3/4 of the catalyst bottle left over, which suggests that somebody thought I could get away with 4%, but the label said 1-2.5%. Maybe the extra is for when the bottle sticks to your gloves and turns over after you thought you'd let go. Speaking of Dan Diehl, I put his fixed gear (taildragger) mains on today, and it went beautifully. Most of the time was spent drilling holes in the rock-hard fiberglass legs, and equally tough aluminum castings. Now I know why people like premade parts. Like Michael's, my wheel centers are 4" in front of the spar face. And the axles are level, so if nothing else, my plane will sit straight on the tarmac. Mark Langford, Huntsville, AL email at langford@hiwaay.net KR2S project construction at http://fly.hiwaay.net/~langford ------------------------------ Date: Mon, 1 Sep 1997 21:56:00 -0600 From: jscott.pilot@juno.com (Jeffrey E Scott) Subject: Re: KR: vinylester ratio On Mon, 1 Sep 1997 21:59:29 -0500 "Mark Langford" writes: > >I used 2g per 200g, or 1% by weight. Seems to have worked great in my 73 >degree basement, and for the quick cure, a trip to my curing oven (the >black asphalt driveway at mid day) does the job in an hour or so. I had >3/4 of the catalyst bottle left over, which suggests that somebody thought >I could get away with 4%, but the label said 1-2.5%. Maybe the extra is >for when the bottle sticks to your gloves and turns over after you thought >you'd let go. The additional MEKP is needed if you're working in cold weather. You can still work with this stuff through the winter with just a little bit of heat in the garage. > >Speaking of Dan Diehl, I put his fixed gear (taildragger) mains on today, >and it went beautifully. Most of the time was spent drilling holes in the >rock-hard fiberglass legs, and equally tough aluminum castings. Now I know >why people like premade parts. Like Michael's, my wheel centers are 4" in >front of the spar face. And the axles are level, so if nothing else, my >plane will sit straight on the tarmac. > >Mark Langford, Huntsville, AL > I would think you would want the wheels cambered in as they will probably camber out as the plane grows in weight. Mine sure did, although my gear legs a slightly different from yours. Just my thoughts.....take it for what it's worth. Jeff - ------- Jeff Scott - Los Alamos, NM jscott.pilot@juno.com See N1213W construction and first flight at http://fly.hiwaay.net~langford/kjefs.html & http: //www.thuntek.net/~jeb/krpage.htm ------------------------------ End of krnet-l-digest V1 #86 ****************************