From: krnet-bounces@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 347, Issue 499 Date: 12/5/2005 6:59:50 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. canopy (steve) 2. canopy (steve) 3. Re: learning things (Scott William) 4. Re: aileron hinges. (Orma) 5. update on Flycorvair.com (Oscar Zuniga) 6. Re: aileron hinges. (iennaco@att.net) 7. Re: aileron hinges. (Jeff Scott) 8. RE: canopy (Doug Rupert) 9. RE: air/fuel mixture meter, dirt cheap and cool! (Doug Rupert) 10. RE: aileron hinges. (Doug Rupert) 11. RE: aileron hinges. (Ameet Savant) 12. learning things (Colin Rainey) 13. RE: (no subject) (Golden, Kevin) 14. RE: aileron hinges. (Golden, Kevin) 15. Aileron Hinges (Ron Freiberger) 16. WAFs revisited (Ron Freiberger) 17. Good News again (Ronald R.Eason) 18. Re: Good News again (jeffyork40@qx.net) 19. Re: WAFs revisited (Jerry Mahurin) 20. Re: aileron hinges. (Donald Reid) 21. KR-2S / Corvair forsale (John Esch) 22. Re: aileron hinges. (BEARLKBOB@aol.com) 23. Re: aileron hinges. (M & C) 24. aileron hinges (Colin Rainey) 25. Re: KR-2S / Corvair forsale (Maxbutler3@aol.com) ---------------------------------------------------------------------- Message: 1 Date: Mon, 05 Dec 2005 22:34:28 +1100 From: steve Subject: KR> canopy To: KRnet Message-ID: <6.2.3.4.0.20051205223144.01c8a9c0@127.0.0.1> Content-Type: text/plain; charset="us-ascii"; format=flowed greetings all, has any one out there in kr land got a set of drawings for a sliding canopy? can email off net. with thanks. ------------------------------ Message: 2 Date: Mon, 05 Dec 2005 22:41:11 +1100 From: steve Subject: KR> canopy To: KRnet Message-ID: <6.2.3.4.0.20051205224012.01c88d80@127.0.0.1> Content-Type: text/plain; charset="us-ascii"; format=flowed greetings all, has any one out there in kr land got a set of drawings for a sliding canopy? can email off net. with thanks. steve edwards. australia. ------------------------------ Message: 3 Date: Mon, 5 Dec 2005 04:35:05 -0800 (PST) From: Scott William Subject: Re: KR> learning things To: brokerpilot96ta@earthlink.net, KRnet Message-ID: <20051205123505.76676.qmail@web31509.mail.mud.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 I gotta tell ya Colin, I learned what I know about glass from the KR site. As for Mark Langford's pics and descriptions on his web site, well, you couldn't begin to put a price on good information like that. I'd go so far as to say that I hope the man decides to find time in his life to write a good book on his experiences. I'd buy it. Woodworking has always been a side thing that I learned in my pappy's cabinet shop. As for metal, after a few tubular race car frames and countless jigging and building motorcycle frames, I think I can handle the tube fuselage on the big biplane. The fabric is something I need to investigate, and an A&P friend of mine who rebuilt and flys an old Luscombe can help with the learning of that material. But nothing I have seen meets the level of information on the KR site about construction techniques as a whole. So many good people here that no matter how hard I try, I just can't quit reading all the great stuff. Scott --- Colin Rainey wrote: > Scott > It has been my observation that although they don't > want to admit getting the knowledge somewhere else, > that alot of the metal and fabric guys glean an > awful lot of information from the postings here and > other glass builders. There are several places on > the plane that it just doesn't makesense to make the > part any other way than with glass. Canopy frames, > engine cowlings, fairings, and such can be made with > compound curves with glas routinely, where with > other materials takes an artisan, which most are > not. > > Good luck... > > > Colin Rainey > brokerpilot96ta@earthlink.net > EarthLink Revolves Around You. _______________________________________ > 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 > __________________________________________ Yahoo! DSL – Something to write home about. Just $16.99/mo. or less. dsl.yahoo.com ------------------------------ Message: 4 Date: Mon, 5 Dec 2005 07:35:10 -0500 From: "Orma" Subject: Re: KR> aileron hinges. To: "KRnet" Message-ID: <002901c5f998$5636e2f0$0302a8c0@ROBBINS1> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original I'm not an engineer or even an expert, but how valid is static testing with no air load on the aileron. Our operating environment has air moving over that service at up to 200 mph, which I would think would effect the outcome in serviceable hours. Orma Southfield, MI KR-2 N110LR 1984 See Tweety at http://www.kr-2.aviation-mechanics.com See other KR spces at www.kr-2.aviation-mechanics.com/krinfo.htm ------------------------------ Message: 5 Date: Mon, 05 Dec 2005 07:33:13 -0600 From: "Oscar Zuniga" Subject: KR> update on Flycorvair.com To: corvaircraft@mylist.net, krnet@mylist.net, pietenpol-list@matronics.com Message-ID: Content-Type: text/plain; format=flowed William has posted an "at the hangar" update on his webpage, at http://www.flycorvair.com/hangar.html . Included are photos of Dave "the Bear" Vargesko's successful test-flight of his Wagabond, some builder photos of Flybaby builders, and some "how not to balance your pistons" photos. Oscar Zuniga San Antonio, TX mailto: taildrags@hotmail.com website at http://www.flysquirrel.net ------------------------------ Message: 6 Date: Mon, 05 Dec 2005 13:48:24 +0000 From: iennaco@att.net Subject: Re: KR> aileron hinges. To: KRnet Message-ID: <120520051348.24141.439445280005261C00005E4D2160376223010C0E02020A07@att.net> Content-Type: text/plain What happens when you add wing and aileron flexure stresses as in real flight to Mr. Chris Heintz' conclusive "ground" flexure tests? Dick -------------- Original message from "Harold Woods" : -------------- > Hi Netters. > A friend recently gave me a link to follow. It took me to , > http://www.zenithair.com/kit-data/ht-aileron.html. > It covers the design and Application of the ZODIAC's Hingeless Aileron. By > Chris Heintz. I have known Chris for over 40 years. He is one smart Aero > Engineer. When I first saw this design on a plane I thought that someone had > lost their marbles. But it produced such a smooth top of the wing/aileron > junction. Read his analysis of it and the simple testing to prove that it > works. Now it is too late for me but why not a fibreglass skin hinge? Do it > the same way. Make up a test situation and test like Chris did. OK Netters, > there is the challenge. Take it up and run with it. > Lets here comments pro and against. > Regards > Harold Woods > Orillia,ON. Canada. > > haroldwoods@rogers.com > > > _______________________________________ > 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: 7 Date: Mon, 5 Dec 2005 14:10:43 GMT From: "Jeff Scott" Subject: Re: KR> aileron hinges. To: krnet@mylist.net Message-ID: <20051205.061122.20213.49252@webmail13.lax.untd.com> Content-Type: text/plain As a Tech Counselor, I have inspected a Zenair Zodiac (Chris Heintz design) that used the aluminum skin as the aileron hinge. It seemed to work well and was designed to have a reasonably large bending radius that should cause a minimum of fatigue. The builder showed me that it was an optional construction method in the plans. I would think there would be a finite metal fatigue life to it, but then I didn't do the engineering calculations. I do know for a fact that the plane was completed and flown. As was mentioned previously, this is also common practice on RC planes, including some that have speeds up to 200 mph. Jeff Scott -- iennaco@att.net wrote: What happens when you add wing and aileron flexure stresses as in real flight to Mr. Chris Heintz' conclusive "ground" flexure tests? Dick -------------- Original message from "Harold Woods" : -------------- > Hi Netters. > A friend recently gave me a link to follow. It took me to , > http://www.zenithair.com/kit-data/ht-aileron.html. > It covers the design and Application of the ZODIAC's Hingeless Aileron. By > Chris Heintz. I have known Chris for over 40 years. He is one smart Aero > Engineer. When I first saw this design on a plane I thought that someone had > lost their marbles. But it produced such a smooth top of the wing/aileron > junction. Read his analysis of it and the simple testing to prove that it > works. Now it is too late for me but why not a fibreglass skin hinge? Do it > the same way. Make up a test situation and test like Chris did. OK Netters, > there is the challenge. Take it up and run with it. > Lets here comments pro and against. > Regards > Harold Woods > Orillia,ON. Canada. > > haroldwoods@rogers.com ------------------------------ Message: 8 Date: Mon, 5 Dec 2005 10:47:03 -0500 From: "Doug Rupert" Subject: RE: KR> canopy To: "'KRnet'" Message-ID: <002301c5f9b3$b7325b00$976cd1d8@office> Content-Type: text/plain; charset="windows-1250" It's in the archives I believe but just in case I'll send you the sketch taken from the old newsletter. It'll arrive off list. Doug Rupert Canada eh! greetings all, has any one out there in kr land got a set of drawings for a sliding canopy? can email off net. with thanks. steve edwards. australia. -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.11/191 - Release Date: 12/2/2005 ------------------------------ Message: 9 Date: Mon, 5 Dec 2005 10:47:04 -0500 From: "Doug Rupert" Subject: RE: KR> air/fuel mixture meter, dirt cheap and cool! To: "'KRnet'" Message-ID: <002401c5f9b3$b7ff20e0$976cd1d8@office> Content-Type: text/plain; charset="windows-1250" In theory yes but running 100LL Avgas means you better carry a few replacement oxygen sensors along for the ride. Those running automotive fuel don't have to worry about it. Doug Rupert Does this mean that this installed correctly ony any airplane would indicate proper air/fuel mixture.leaning? Would proper mixture hold true for all engines? Steve Bray -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.11/191 - Release Date: 12/2/2005 ------------------------------ Message: 10 Date: Mon, 5 Dec 2005 10:55:29 -0500 From: "Doug Rupert" Subject: RE: KR> aileron hinges. To: "'KRnet'" Message-ID: <002901c5f9b4$5304cc20$976cd1d8@office> Content-Type: text/plain; charset="windows-1250" Now the only question remaining is what composite will take that kind of repetitive flexing without degradation. Now those builders in warmer climates may not have to worry much about this point since we know that composites lose their stiffness the more they are exposed to heat BUT us guys up here in the frostier climates would definitely have a problem in that department. One only need look as far as the nearest Corvette that has encountered an immovable object during winter months. They have a tendency to shatter at best. Doug Rupert . As was mentioned previously, this is also common practice on RC planes, including some that have speeds up to 200 mph. Jeff Scott -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.11/191 - Release Date: 12/2/2005 ------------------------------ Message: 11 Date: Mon, 5 Dec 2005 08:10:43 -0800 (PST) From: Ameet Savant Subject: RE: KR> aileron hinges. To: KRnet Message-ID: <20051205161043.23581.qmail@web60823.mail.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Load is not just a function of airspeed it also depends on size of the control surface (among other things) 200 mph of an small R/C plane is not the same load on the control surface as 200mph for a full scale airplane. As I mentioned earlier, R/C gliders use "KEVLAR" for this purpose. I don't know the theory behind it nor the numbers to justify the fatigue life. But there must be some logic to it and might be a good start for someone to investigate such a hinge method. Regards, Ameet Savant --- Doug Rupert wrote: > Now the only question remaining is what composite > will take that kind of > repetitive flexing without degradation. > > Doug Rupert > > > > . As was mentioned previously, this is also common > practice on RC planes, > including some that have speeds up to 200 mph. > > > > Jeff Scott > > > > > > > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.1.362 / Virus Database: 267.13.11/191 - > Release Date: 12/2/2005 > > > _______________________________________ > 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 __________________________________ Start your day with Yahoo! - Make it your home page! http://www.yahoo.com/r/hs ------------------------------ Message: 12 Date: Mon, 5 Dec 2005 11:16:15 -0500 From: "Colin Rainey" Subject: KR> learning things To: krnet@mylist.net Message-ID: <410-220051215161615937@earthlink.net> Content-Type: text/plain; charset=US-ASCII Scott It has been my observation that although they don't want to admit getting the knowledge somewhere else, that alot of the metal and fabric guys glean an awful lot of information from the postings here and other glass builders. There are several places on the plane that it just doesn't makesense to make the part any other way than with glass. Canopy frames, engine cowlings, fairings, and such can be made with compound curves with glas routinely, where with other materials takes an artisan, which most are not. Good luck... Colin Rainey brokerpilot96ta@earthlink.net EarthLink Revolves Around You. ------------------------------ Message: 13 Date: Mon, 5 Dec 2005 11:40:13 -0500 From: "Golden, Kevin" Subject: RE: KR> (no subject) To: "KRnet" Message-ID: Content-Type: text/plain; charset="us-ascii" Look closely at workmanship. Especially the WAF. -----Original Message----- From: krnet-bounces@mylist.net [mailto:krnet-bounces@mylist.net] On Behalf Of Steve Bray Sent: Sunday, December 04, 2005 9:51 AM To: krnet@mylist.net Subject: Re: KR> (no subject) There is a KR-1 on ebay today built for a tall man, it sez. Steve Bray Jackson, Tennessee >From: VIRGIL N SALISBURY >Reply-To: KRnet >To: krnet@mylist.net >Subject: Re: KR> (no subject) >Date: Sun, 4 Dec 2005 10:15:43 -0500 > > Kens KR-I was made to fit Stu Robinson. Ken put pillows in to fit >himself, Virg > >On Sat, 3 Dec 2005 20:44:07 -0800 "Joe Beyer" >writes: > > Message: 1 > > Date: Sat, 3 Dec 2005 12:28:36 +0200 > > From: "gielmarais" > > Subject: KR> KR1 > > To: > > Message-ID: <000001c5f7f4$fe4a99f0$8fde17c4@private7ru2gv0> > > Content-Type: text/plain; charset="iso-8859-1" > > > > >I would like to know what the average pilot size is for the KR1 . > > >Can a KR1 be made to fit a pilot of the following dimensions: > > >6 foot 3 inches, weight 205 Pounds. > > >cockpit width required is 24 inches. > > >KR1 to be fitted with 1600 vw engine. > > > > >Info required before placing order for plan. > > > > >Thanking you in anticipation > > > > >G.V. Strutt > > > > I fly a KR-2 on a 1641cc type one VW with a force one type hub that > > I made. > > That's the first over sized slip in, no machine work required on the > > case > > and heads. The performance is about like a Cessna 150. If I were > > building a > > KR-1, I would use the KR-2 plans and not make the fuselage as wide > > as shown > > in those plans. A 1600cc engine would work out well for the KR-1. > > > > -Joe > > > > > > _______________________________________ > > 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 > > > > > > >Virgil N. Salisbury - AMSOIL >www.lubedealer.com/salisbury >Miami ,Fl > >_______________________________________ >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 _______________________________________ 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 *The information contained in this message may be confidential and/or subject to legal privilege, and is for the use of the intended addressee only. Any unauthorized use, dissemination or copying of the information in this message is strictly prohibited. If you have received this message in error, please notify the sender immediately and delete this message.* ------------------------------ Message: 14 Date: Mon, 5 Dec 2005 11:54:50 -0500 From: "Golden, Kevin" Subject: RE: KR> aileron hinges. To: "KRnet" Message-ID: Content-Type: text/plain; charset="us-ascii" I think it has been proven to work, tested to extreme limits, and even forced to break with no advances in the break. It reminds me of a story I once read about the tapered rod gear by Steve Wittman. He couldn't sell the idea because it "looked" flimsy. History shows what happened. Advances cannot be made without ideas. Build it and they will come. :-) Kevin. -----Original Message----- From: krnet-bounces@mylist.net [mailto:krnet-bounces@mylist.net] On Behalf Of Jeff Scott Sent: Monday, December 05, 2005 8:11 AM To: krnet@mylist.net Subject: Re: KR> aileron hinges. As a Tech Counselor, I have inspected a Zenair Zodiac (Chris Heintz design) that used the aluminum skin as the aileron hinge. It seemed to work well and was designed to have a reasonably large bending radius that should cause a minimum of fatigue. The builder showed me that it was an optional construction method in the plans. I would think there would be a finite metal fatigue life to it, but then I didn't do the engineering calculations. I do know for a fact that the plane was completed and flown. As was mentioned previously, this is also common practice on RC planes, including some that have speeds up to 200 mph. Jeff Scott -- iennaco@att.net wrote: What happens when you add wing and aileron flexure stresses as in real flight to Mr. Chris Heintz' conclusive "ground" flexure tests? Dick -------------- Original message from "Harold Woods" : -------------- > Hi Netters. > A friend recently gave me a link to follow. It took me to , > http://www.zenithair.com/kit-data/ht-aileron.html. > It covers the design and Application of the ZODIAC's Hingeless Aileron. By > Chris Heintz. I have known Chris for over 40 years. He is one smart Aero > Engineer. When I first saw this design on a plane I thought that someone had > lost their marbles. But it produced such a smooth top of the wing/aileron > junction. Read his analysis of it and the simple testing to prove that it > works. Now it is too late for me but why not a fibreglass skin hinge? Do it > the same way. Make up a test situation and test like Chris did. OK Netters, > there is the challenge. Take it up and run with it. > Lets here comments pro and against. > Regards > Harold Woods > Orillia,ON. Canada. > > haroldwoods@rogers.com _______________________________________ 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 *The information contained in this message may be confidential and/or subject to legal privilege, and is for the use of the intended addressee only. Any unauthorized use, dissemination or copying of the information in this message is strictly prohibited. If you have received this message in error, please notify the sender immediately and delete this message.* ------------------------------ Message: 15 Date: Mon, 5 Dec 2005 12:47:38 -0500 From: "Ron Freiberger" Subject: KR> Aileron Hinges To: "'KRnet'" Message-ID: <004101c5f9c3$ff31a630$0202a8c0@Disorganized> Content-Type: text/plain; charset="us-ascii" My "guess" is that if Chris Heintz says its good, then it's good Ron Freiberger mail to ronandmartha@earthlink.net ------------------------------ Message: 16 Date: Mon, 5 Dec 2005 12:51:05 -0500 From: "Ron Freiberger" Subject: KR> WAFs revisited To: "'KRnet'" Message-ID: <004201c5f9c4$7a19bae0$0202a8c0@Disorganized> Content-Type: text/plain; charset="us-ascii" Designing an airplane is a lot like designing a chain, but more repetitive. The goal is to have ALL of the parts equally strong. What is there about the WAFs that suggests they are a weak link? Ron Freiberger mail to ronandmartha@earthlink.net ------------------------------ Message: 17 Date: Mon, 5 Dec 2005 12:05:27 -0600 From: "Ronald R.Eason" Subject: KR> Good News again To: "'KRnet'" Message-ID: <004b01c5f9c6$79311db0$6601a8c0@CADENGINEERING> Content-Type: text/plain; charset="us-ascii" I just got back from my stress test at NKC hospital and passed again. Needed 159 beats/minute on the tread mill based on my age of 65 years. I had a quad by-pass in 1993. Every year since I've passed the dreaded stressssssssssss Testttttttttttttt. It's costly, but it's worth it from my perspective. I am feeling pretty good today. By the way I am working on updating my web site with many new pics. KRron ------------------------------ Message: 18 Date: Mon, 5 Dec 2005 14:38:44 -0500 From: Subject: Re: KR> Good News again To: "KRnet" Message-ID: <089901c5f9d3$9363e3e0$6564a8c0@server> Content-Type: text/plain; charset="iso-8859-1" Way to go , way to watch you health. Jeff York KR-2 Flying N839BG Home page http://web.qx.net/jeffyork40/ My KR-2 http://web.qx.net/jeffyork40/Airplane/ to see my KR-2 Email jeffyork40@qx.net ----- Original Message ----- From: "Ronald R.Eason" To: "'KRnet'" Sent: Monday, December 05, 2005 1:05 PM Subject: KR> Good News again > > I just got back from my stress test at NKC hospital and passed again. Needed > 159 beats/minute on the tread mill based on my age of 65 years. I had a > quad by-pass in 1993. > Every year since I've passed the dreaded stressssssssssss Testttttttttttttt. > It's costly, but it's worth it from my perspective. > I am feeling pretty good today. By the way I am working on updating my web > site with many new pics. > > KRron > > > > _______________________________________ > 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: 19 Date: Mon, 5 Dec 2005 17:25:25 -0500 From: Jerry Mahurin Subject: Re: KR> WAFs revisited To: KRnet Message-ID: <3812d7480512051425m12f297f3if9258d7780890a5a@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 .........nothing...........as designed and implemented............ There has been tons of email and discussions about them, but I cannot remember one negative... My .02 cents worth; keep on keeping on, On 12/5/05, Ron Freiberger wrote: > > Designing an airplane is a lot like designing a chain, but more > repetitive. The goal is to have ALL of the parts equally strong. What > is there about the WAFs that suggests they are a weak link? > > Ron Freiberger > mail to ronandmartha@earthlink.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 > -- Jerry Mahurin - aka - KRJerry EAA# 0034283 Lugoff, SC 29078 ------------------------------ Message: 20 Date: Mon, 05 Dec 2005 20:36:29 -0500 From: Donald Reid Subject: Re: KR> aileron hinges. To: KRnet Message-ID: <6.2.3.4.2.20051205203042.01e6f740@mail.peoplepc.com> Content-Type: text/plain; charset="us-ascii"; format=flowed At 07:35 AM 12/5/2005, you wrote: >I'm not an engineer or even an expert, but how valid is static testing with >no air load on the aileron. Our operating environment has air moving over >that service at up to 200 mph, which I would think would effect the outcome >in serviceable hours. I am an engineer and an expert on airfoils and I know a lot about materials, stress calculations, fatigue life and a few other engineering things. A solid surface aluminum hinge is unconventional but perfectly safe. The service life should be on the order of 10,000 hours (my estimate only). It will be much less likely to fail in service than an aluminum propeller and you would not think twice about flying behind one of those. Don Reid - donreid "at" peoplepc.com Bumpass, Va Visit my web sites at: AeroFoil, a 2-D Airfoil Design And Analysis Computer Program: http://aerofoilengineering.com KR2XL construction: http://aerofoilengineering.com/KR/KR2XL.htm Aviation Surplus: http://aerofoilengineering.com/PartsListing/Airparts.htm EAA Chapter 231: http://eaa231.org Ultralights: http://usua250.org VA EAA Regional Fly-in: http://vaeaa.org ------------------------------ Message: 21 Date: Mon, 5 Dec 2005 17:51:23 -0800 From: "John Esch" Subject: KR> KR-2S / Corvair forsale To: , Message-ID: <001601c5fa07$926cb500$6501a8c0@VAIO> Content-Type: text/plain; charset="iso-8859-1" All Once again I am lowering the price of my KR-2S and Corvair project. Information can be found at http://www.home.earthlink.net/~jfesch/ The project is located at the Independence Airpark (7S5), Oregon. John Esch ------------------------------ Message: 22 Date: Mon, 5 Dec 2005 21:13:01 EST From: BEARLKBOB@aol.com Subject: Re: KR> aileron hinges. To: krnet@mylist.net Message-ID: <23b.2f11ebf.30c64dad@aol.com> Content-Type: text/plain; charset="US-ASCII" Don, I have carefully read your website and trust your judgement as an educated builder. What do you think of the same general arrangement on a KR? Attatching an aluminum sheet? Or possibly a kevlar sheet? Bob Polgreen N6165L KR boat stage ------------------------------ Message: 23 Date: Mon, 5 Dec 2005 20:15:23 -0600 From: "M & C" Subject: Re: KR> aileron hinges. To: "KRnet" Message-ID: Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original I wonder if all this stress testing was done in temp extremes ranges. I know metal will become more briddle in cold temps and was wondering is this would have an effect on service life of this kind of hinge system. Mike Turner Jackson, Missouri Swing the prop and light the fire, dance amoung the stars.........N642MC > > I am an engineer and an expert on airfoils and I know a lot about > materials, stress calculations, fatigue life and a few other > engineering things. A solid surface aluminum hinge is unconventional > but perfectly safe. The service life should be on the order of > 10,000 hours (my estimate only). It will be much less likely to fail > in service than an aluminum propeller and you would not think twice > about flying behind one of those. > > > > > > Don Reid - donreid "at" peoplepc.com > Bumpass, Va > > Visit my web sites at: > > AeroFoil, a 2-D Airfoil Design And Analysis Computer Program: > http://aerofoilengineering.com > ------------------------------ Message: 24 Date: Mon, 5 Dec 2005 21:37:39 -0500 From: "Colin Rainey" Subject: KR> aileron hinges To: krnet@mylist.net Message-ID: <410-22005122623739291@earthlink.net> Content-Type: text/plain; charset=US-ASCII Now you are asking to mix two different materials in a structural location. From what I have heard, that is a bad idea. Why not just use the Dr. Dean hinge method, detailed on Mark Langford's site, and make life easy and safe. This is one area that has been explored a great deal, and I believe that way too much time is wasted thinking of any new ideas. Incorporating these new ideas, while having merit, and making the builder look smart, will ultimately take a great deal of extra time, because now "Captain Kirk" you are going where no man has gone before! I have a flying KR2 that has been taken down for an engine change that was supposed to take 3 months. This April will be one year. All changes take extra time. Weigh the advantages: you still only get 20 degrees up and 10 degrees down deflection; It will be with more resistance, as I have spoken to builders who have had a 601 with the aileron skin, and converted to hinge for better control harmony; and it will take longer because you will be making the blue print. My humble opinion is to find something else on the plane to express your individuality... Colin Rainey brokerpilot96ta@earthlink.net EarthLink Revolves Around You. ------------------------------ Message: 25 Date: Mon, 5 Dec 2005 21:58:49 EST From: Maxbutler3@aol.com Subject: Re: KR> KR-2S / Corvair forsale To: krnet@mylist.net Message-ID: <259.2e80f1a.30c65869@aol.com> Content-Type: text/plain; charset="US-ASCII" DO YOU HAVE STARTER SETUP?WHAT KIND OF OIL PAN? THANKS MAX BUTLER CHEYENNE WY. ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 347, Issue 499 *************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================