From: KR-net users group digest[SMTP:kr-net@telelists.com] Sent: Friday, April 02, 1999 1:36 AM To: kr-net digest recipients Subject: kr-net digest: April 01, 1999 KR-net users group Digest for Thursday, April 01, 1999. 1. Making sides 2. Re: Spar Caps 3. Re: composite materials and laminating systems 4. project for sale 5. flaming newbies and the archives 6. Re: composite materials and laminating systems 7. Re: project for sale 8. Re: project for sale 9. Re: project for sale 10. Re: Making sides - Widened Fuselage ... 11. Re: Project for sale 12. Re: project for sale 13. pucker factor 14. Re: Plans/Projects for sale??? 15. Re: Spar Caps 16. Re: Spar Caps... Mims data not true 17. Re: project for sale 18. flame retardant 19. Taildragger Endorsement! 20. RE: NLF (1)0115 vs. RAF 48 21. New KRNet Member 22. Re: Taildragger Endorsement! 23. Re: Plans/Projects for sale??? 24. Re: epoxy ---------------------------------------------------------------------- Subject: Making sides From: 5253 Date: Thu, 01 Apr 1999 13:13:50 +0300 X-Message-Number: 1 Hi netters I'm now ready to start with woodwork. I decided that I make fuselage wider than in plans it is. Does anyone now, what is the best size and if I make fuselage 42" wide, have I make some changes in sides dimensions? Juss Johan Pender ------------------ GSM 372 5 048 958 GSM post 372 5 3048 958 ---------------------------------------------------------------------- Subject: Re: Spar Caps From: "Robert R. Lee" Date: Thu, 1 Apr 1999 05:26:34 -0500 X-Message-Number: 2 Mike Mims wrote: "As weird as it seems I guess the grain orientation on the caps doesn't matter all that much. I ran this by the engineers here on the list and (via a third party) by Kevin Kelley (RRs engineer) and we came to the conclusion that it just doesn't matter." ++++++++++++++++++++++++++++++++++++++++++++++++++ Just to clearify the reply that he got when he asked the question, grain orientation of spar caps does matter! The grain must be parallel to the spanwise axis of the spar. The reason Mike was told that it really doesn't matter was because of the fact that when we buy the blanks to make our spars they usually come cut parallel to the grain because that is the cheapest way for the lumber providers to cut the wood. Just in case some of you are getting large pieces of spruce and milling your own spar caps, you need to keep the grain parallel to the spanwise axis to get the maximum strength. Mike was given a misleading answer because of how the spar caps come from our suppliers. Truth is grain orientation of wood does matter for strength in tension. Regards, Bob Lee N52BL ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866] ---------------------------------------------------------------------- Subject: Re: composite materials and laminating systems From: "Brian J. Bland" Date: Thu, 1 Apr 1999 05:44:08 -0600 X-Message-Number: 3 Rod, Run right back to that dumpster and get that West out of there!!!! Even if you don't want to use it for anything structural you can at least use the West to seal the various wood parts since you already have it. No need to just waste it. It will work perfect for sealing the bare wood. - Brian J Bland Claremore, OK Mail to: brianbland@netzero.net http://www.flight2000.com/hangar/KR-2S/ -----Original Message----- From: Rod Kelso To: KR-net users group Date: Wednesday, March 31, 1999 11:50 PM Subject: [kr-net] Re: composite materials and laminating systems >I was advised by someone we all know very well to pitch the West System, >and go AeroPoxy, so out to the DUMPSTER went West. Since my butt will be >at over 8000 ft or higher, Im not taking any chances. > >Rod Kelso >Denver, Colo ________________________________________________________ NetZero - We believe in a FREE Internet. Shouldn't you? Get your FREE Internet Access and Email at http://www.netzero.net/download.html ---------------------------------------------------------------------- Subject: project for sale From: "Mark Langford" Date: Thu, 1 Apr 1999 06:37:02 -0600 X-Message-Number: 4 Well, I just don't have time to work on my plane anymore, and I'm lookin' to retire from KR sainthood, so I now offer it's pathetic KR2S beginnings for sale. 55% complete, fuselage stretched 4" longer and 3" wider, horizontal stabilizer stretched 6" per side, AS5046 airfoil, NACA tail airfoils, wing tanks, Dragonfly canopy, carbon fiber wings, includes 2600cc Type 4 VW engine. Fwd and aft turtle decks installed, as well as canopy. Too many mods to mention. Workmanship OK. Price $5000. See it at http://home.hiwaay.net/~langford/kmarkl.html . This offer good only on April 1st, from 12:00AM to 12:01 AM... Mark Langford, Huntsville, Alabama see KR2S N56ML at http://home.hiwaay.net/~langford ---------------------------------------------------------------------- Subject: flaming newbies and the archives From: "Mark Langford" Date: Thu, 1 Apr 1999 06:44:32 -0600 X-Message-Number: 5 Flaming newbies. Sounds kinda kinky, huh? That's not really what this is about, but it's a pretty cool subject line, since we'll probably have to live with it for a month or so. You know, about 98% of KRNet questions, debates, and arguments have already flowed under the bridge, and reside in the archives at www.krnet.org . If everyone would go cozy up to a file per night and read it from end to end, we'd not be rehashing the same stuff every few months or (weeks). List etiquette (uh, make that common sense) dictates that newbies go to the FAQs of a list (and READ it) before posting any questions. We don't quite have an FAQ yet (but the skeleton is lookin' good) but we do have the archives, thanks to John, Ross, Carlos and Juan. One suggestion I'd like to make is that we make it easier to read. Maybe we can uncompress it and append it all into one file, and one of our many software wizard guru experts can write a little interface that will search that file for keywords. If there's not enough space on the KRNet server I'll gladly pay the extra $10 a year to buy it, or I'll put it on my site if necessary. Then if you actually WANT to read the previous 7500 emails that have debated the worth of West Systems epoxy, you can read every stinkin' one of them in one shot, rather than spending the week checking your email, taking potshots, and ducking back into your foxhole. Any computer whiz kid experts willing to belly up to this little task? If you guys want to login and learn just about everything you want to know about the KR, its history, its construction, its modifications, and how complete lunatics think you should should change it, you can read it in two evenings in the archives, and we'll all have a lot more time on our hands to build planes... Thank you, thank you very much (in your best Elvis impression) Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S N56ML at http://home.hiwaay.net/~langford ---------------------------------------------------------------------- Subject: Re: composite materials and laminating systems From: KR2616TJ@aol.com Date: Thu, 1 Apr 1999 07:53:13 EST X-Message-Number: 6 Guys, After following probably forty responses to the West System/Aero thread, I'll relay some personal experiences with neither. On my laid up wings, I did not use West, Aero or RR. I used a resin on a recommendation from a Glasair builder how is also a partner in an international kayak business (as in Olympic quality). He lives near me and is building another airplane in the hangar next to me. Needless to say, he is somewhat an expert in the field of glass and resin. He just completed a foam Corsair lookalike which uses a spruce skeleton and the rest is foam. He was wanting to paint it Navy blue and needed to find a resin that would not delaminate due to heat. Needless to say, he found a resin that is not available on the retail market that is damn near "impervious to heat/UV delamination. After studying the characteristic of the resin I tried several test pieces, for laminating purposes only. The stuff smells awful and ventilation is needed, but it was worth the $100.00 a gallon price. I told everyone here about a week ago about my two kids jumping up and down on my outer wing panels and offered to send JPGs of the action. They did not go through the wing and I actually hurt my back trying to pull the glass off the spars. I couldn't do it by myself. The contact was that good. Point being, you are not bound by what you can buy at the two major aircraft catalogs, but be sure and check out all the properties. Listen to what others have to say and separate what you think are the right ones. Remember the KRNet is a small sample of the builders out there, but there is a lot of expertise here. BTW, my personal preference for building your boat and spars...........T-88. Just remember, opinions are easier to get than expert knowledge. Dana Overall 1999 KR Gathering host Richmond, KY mailto:kr2616tj@aol.com http://www.geocities.com/CapeCanaveral/Hangar/7085/ ---------------------------------------------------------------------- Subject: Re: project for sale From: Lenspencer@aol.com Date: Thu, 1 Apr 1999 08:17:33 EST X-Message-Number: 7 In a message dated 4/1/99 7:49:24 AM Eastern Standard Time, langford@hiwaay.net writes: > Well, I just don't have time to work on my plane anymore, and I'm lookin' to > retire from KR sainthood, so I now offer it's pathetic KR2S beginnings for > sale. 55% complete, fuselage stretched 4" longer and 3" wider, horizontal > stabilizer stretched 6" per side, AS5046 airfoil, NACA tail airfoils, wing > tanks, Dragonfly canopy, carbon fiber wings, includes 2600cc Type 4 VW > engine. Fwd and aft turtle decks installed, as well as canopy. Too many > mods to mention. Workmanship OK. Price $5000. See it at > http://home.hiwaay.net/~langford/kmarkl.html . This offer good only on > April 1st, from 12:00AM to 12:01 AM... > Darn!! Missed the deadline! dB^) ---------------------------------------------------------------------- Subject: Re: project for sale From: 5253 Date: Thu, 01 Apr 1999 16:14:10 +0300 X-Message-Number: 8 OK! I take it! But you pay for shipping to Estonia! (ca. 1500 USD) juss At 06:37 01.04.99 -0600, you wrote: >Well, I just don't have time to work on my plane anymore, and I'm lookin' to >retire from KR sainthood, so I now offer it's pathetic KR2S beginnings for >sale. 55% complete, fuselage stretched 4" longer and 3" wider, horizontal >stabilizer stretched 6" per side, AS5046 airfoil, NACA tail airfoils, wing >tanks, Dragonfly canopy, carbon fiber wings, includes 2600cc Type 4 VW >engine. Fwd and aft turtle decks installed, as well as canopy. Too many >mods to mention. Workmanship OK. Price $5000. See it at . This offer good only on >April 1st, from 12:00AM to 12:01 AM... > >Mark Langford, Huntsville, Alabama >see KR2S N56ML at http://home.hiwaay.net/~langford > > > >--- >You are currently subscribed to kr-net as: juss@teleport.ee >To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > > Johan Pender ------------------ GSM 372 5 048 958 GSM post 372 5 3048 958 ---------------------------------------------------------------------- Subject: Re: project for sale From: JEHayward@aol.com Date: Thu, 1 Apr 1999 09:21:37 EST X-Message-Number: 9 In a message dated 4/1/99 5:48:45 AM Mountain Standard Time, langford@hiwaay.net writes: << Well, I just don't have time to work on my plane anymore........ This offer good only on April 1st, from 12:00AM to 12:01 AM... >> Good one Mark and SO believable given your busy schedule. I was starting to connive a plan to notify you, then head to Chattanooga for a visit with my folks and brother, then drop on down to Huntsville, when I got to your last line! Jim Hayward Rapid City, SD ---------------------------------------------------------------------- Subject: Re: Making sides - Widened Fuselage ... From: "Albert Pecoraro" Date: Thu, 01 Apr 1999 09:58:02 EST X-Message-Number: 10 Juss, I widened the top of my fuselage to 42" at Node 'F'. I kept Nodes 'A' and 'I' unchanged and I calculated the width of the other Nodes using CADKey98. I have dimensions for both the top and bottom if you or anyone else is interested. Please email me off-net and use the subject heading "Fuselage Mods". I will wait until late this evening so I can do a "bulk" email to all interested persons (if there are any!) ;-) Best wishes. Albert Pecoraro 1896 Radcliff SE Grand Rapids, MI 49506 616-975-3197 616-247-2803 (W) apec97@hotmail.com http://fly.to/hangar-AP <--- Click on the Eagle! KR-2S - Building the spars ... ----Original Message Follows---- From: 5253 Reply-To: "KR-net users group" To: "KR-net users group" Subject: [kr-net] Making sides Date: Thu, 01 Apr 1999 13:13:50 +0300 Hi netters I'm now ready to start with woodwork. I decided that I make fuselage wider than in plans it is. Does anyone now, what is the best size and if I make fuselage 42" wide, have I make some changes in sides dimensions? Juss Johan Pender ------------------ GSM 372 5 048 958 GSM post 372 5 3048 958 --- You are currently subscribed to kr-net as: apec97@hotmail.com To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com Get Your Private, Free Email at http://www.hotmail.com ---------------------------------------------------------------------- Subject: Re: Project for sale From: "Steve Glover" Date: Thu, 1 Apr 1999 8:18:10 X-Message-Number: 11 What would a good deal be on a KR project with engine like this be??? ---------------------------------------------------------------------- Subject: Re: project for sale From: KR2616TJ@aol.com Date: Thu, 1 Apr 1999 13:34:22 EST X-Message-Number: 12 In a message dated 4/1/99 7:48:39 AM Eastern Standard Time, langford@hiwaay.net writes: << Well, I just don't have time to work on my plane anymore, and I'm lookin' to retire from KR sainthood, so I now offer it's pathetic KR2S beginnings for sale. 55% complete, fuselage stretched 4" longer and 3" wider, horizontal stabilizer stretched 6" per side, AS5046 airfoil, NACA tail airfoils, wing tanks, Dragonfly canopy, carbon fiber wings, includes 2600cc Type 4 VW engine. Fwd and aft turtle decks installed, as well as canopy. Too many mods to mention. Workmanship OK. Price $5000. See it at http://home.hiwaay.net/~langford/kmarkl.html . This offer good only on April 1st, from 12:00AM to 12:01 AM... >> OH, MAN, you mean it was only a joke....................Hey, Mark send my check back to me when you get it.......................although I thought it was a little bit overpriced, what with all the untested mods;-). Dana ---------------------------------------------------------------------- Subject: pucker factor From: "Richard Parker" Date: Thu, 01 Apr 1999 14:15:25 PST X-Message-Number: 13 Its friday in my book. Heres some unusual aviation pictures http://www.n-w.de/top/ Get Your Private, Free Email at http://www.hotmail.com ---------------------------------------------------------------------- Subject: Re: Plans/Projects for sale??? From: CruzJ12@aol.com Date: Thu, 1 Apr 1999 19:32:03 EST X-Message-Number: 14 Steve ........ Here is a place where kr2's can be bought. http://www.barnstormers.com/hbkr0000.html ---------------------------------------------------------------------- Subject: Re: Spar Caps From: Mike Mims Date: Thu, 01 Apr 1999 17:17:28 -0800 X-Message-Number: 15 "Robert R. Lee" wrote: >>>>> Just to clearify the reply that he got when he asked the question, grain orientation of spar caps does matter! The grain must be parallel to the spanwise axis of the spar. The reason Mike was told that it really doesn't matter was because of the fact that when we buy the blanks to make our spars they usually come cut parallel to the grain because that is the cheapest way for the lumber providers to cut the wood.>>>>> I think I am allowed to assume that anyone building an airplane would realize the wood for spars (or anything else for that matter) has to be cut in the fashion mentioned above. I know and you know as well as everyone else on this list knows that we were talking about end grain orientation. And even if someone was lacking in knowledge and they didn't know it wouldn't matter because A) You cant buy 6, 8, or 14 foot long pieces of spruce cut any other way because........ B) Sitka Spruce trees don't grow in 14 diameters!!!!!!! Therefor grain orientation doesn't matter. :o) -- zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims KR290S (Sky Pig) ,..Building ailerons and sanding the wings... mailto:mikemims@home.com http://www.geocities.com/CapeCanaveral/Hangar/4136/ Aliso Viejo Ca ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ---------------------------------------------------------------------- Subject: Re: Spar Caps... Mims data not true From: Ron Freiberger Date: Thu, 01 Apr 1999 20:39:45 -0500 X-Message-Number: 16 Grain direction on the spar caps is critical. Run the grain long-ways :) Ron -----Original Message----- From: bounce-kr-net-19348@telelists.com [mailto:bounce-kr-net-19348@telelists.com] On Behalf Of Mike Mims Sent: Wednesday, March 31, 1999 10:19 PM To: KR-net users group Subject: [kr-net] Re: Spar Caps Rick Armstrong wrote: > > Can someone tell me the grain oreintation for the spar caps on the KR-2 using Dans wing skins? thanks > As weird as it seems I guess the grain orientation on the caps doesn't matter all that much. I ran this by the engineers here on the list and (via a third party) by Kevin Kelley (RRs engineer) and we came to the conclusion that it just doesn't matter. -- zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims KR290S (Sky Pig) ,..Building ailerons and sanding the wings... mailto:mikemims@home.com http://www.geocities.com/CapeCanaveral/Hangar/4136/ Aliso Viejo Ca ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ --- You are currently subscribed to kr-net as: ronald.freiberger@cwix.com To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: project for sale From: EveninBrz@aol.com Date: Thu, 1 Apr 1999 21:20:24 EST X-Message-Number: 17 Anyone that believes that one deserves the embarrassment. Happy April Fools day! ---------------------------------------------------------------------- Subject: flame retardant From: "Jody Wallace" Date: Thu, 01 Apr 1999 19:05:17 PST X-Message-Number: 18 I once fought round for round with this guy, We argued about many things, That is...until the day he told me, About the day he got his wings. Even WWII pilots ( from opposing countries ) had a common respect for one another... JW Get Your Private, Free Email at http://www.hotmail.com ---------------------------------------------------------------------- Subject: Taildragger Endorsement! From: Ross Youngblood Date: Thu, 01 Apr 1999 19:24:37 -0800 X-Message-Number: 19 Well, I spent the last week in Nampa Idaho on business. I was out at the hangar, paying my hangar rent, and deciding what to do next on the KR project to get going again, when my boss pages me. So over the helecoptors taking off, he tells me that I need to visit Idaho for a while. The good news is that Nampa Idaho is the home of Rocky Mountain Air Service. And they rent an Aeronca Champ for $34/hr wet. I got my Taildragger endorsement yesterday, and I am Motivated! This was terrific fun, and I got to fly around this morning solo and did two pretty good wheel landings, and one out of two good three point landings. Woo HOO!!! -- Ross rossy@teleport.com krnet@krnet.org ---------------------------------------------------------------------- Subject: RE: NLF (1)0115 vs. RAF 48 From: GREG S MARTIN Date: Thu, 1 Apr 1999 18:53:40 -0800 X-Message-Number: 20 Mark My profession is architecture. I've have because of that, AutoCAD. I got the coordinates off the web and plotted that way. I also have the ability to plot (E) size paper. So that was very easy for me. But the compufoil sounds like a good program. I am going to use the NLF foil as I am using a GL1200 Gold Wing motor cycle engine. I'm just trying to get a little more speed comfortably out of the little rascal. Greg Martin Bakersfield, CA On Tue, 30 Mar 1999 19:33:24 -0800 "Andy" writes: > >-----Original Message----- >From: Mark Langford >To: KR-net users group >Date: Monday, March 29, 1999 4:18 AM >Subject: [kr-net] RE: NLF (1)0115 vs. RAF 48 > > > For you more adventurous souls who >>think you can draw up and plot out a set for cheaper, the coordinates >will >>eventually be published on Selig's web site, as they will be public >domain >>at that point. But be advised that the going rate to plot out ONE >E-size >>sheet is about $35 at your local plot emporium. >You guys gotta check out Eric Sanders Compufoil software. You can >download >a free working sample that will do most of the program's functions. >I >bought the program, entered the ordinates for an airfoil not in the >database >(the data base is huge by the way) and compared the printed results to >a >carefully handplotted one. Perfect match in 30 seconds! I was using >the >program to plot bulkheads, had a problem, and emailed Sanders. He >called >me, downloaded a fix, and spent quite a bit of time helping me use >the >program for something it wasn't designed for. You could enter the >ordinates >for your airfoil, and printout any size you want. I'm using the >airfoil >"negatives" to check on the accuracy of my wing every 6" of span. >The >program is about $35 to $85 bucks, depending on options. >>Mark Langford, Huntsville, Alabama >>mailto:langford@hiwaay.net >>see KR2S N56ML at http://home.hiwaay.net/~langford >> >> >> >>--- >>You are currently subscribed to kr-net as: pickles@snowcrest.net >>To unsubscribe send a blank email to >leave-kr-net-17800J@telelists.com >> > > >--- >You are currently subscribed to kr-net as: idrawtobuild@juno.com >To unsubscribe send a blank email to >leave-kr-net-17800J@telelists.com > > ---------------------------------------------------------------------- Subject: New KRNet Member From: Kimball Anderson Date: Thu, 01 Apr 1999 22:41:00 -0500 X-Message-Number: 21 Hello, everyone. I am forwarding the following message (with translation) from Eduardo Iglesias, a KR builder in Argentina. In a previous email, Eduardo in= dicates that he's pretty good at reading English, but just hasn't quite got t= he knack of expressing himself yet. I believe that he'll be able to rea= d and understand any responses anyone might have. He's also pretty profici= ent in French. Welcome to KRNet, Eduardo. /* Eduardo begins here */ I bought my KR2 plans in 1982 and, after reading the plans several ti= mes until I understood them, I went to work building. I built the empenn= age, then the fuselage, and finally the exterior portion of the wings. Af= ter sanding prolifically almost every free weekend, I began laminating wi= th 220 grams/meter (1.55 ounce/yard?) fiberglass and epoxy. Once finished with this, and after a long period of time, I obtained = the microballons and putty, and sanded until I thought everything looked = good. I applied several coats of primer and gave everything a fine sanding. After some time had passed, everything I had done began to bubble! T= he bubbles developed between the resin and the putty. I left everything= for a long time without touching it (and without looking at it). In 1997, we went with some friends to Sun-N-Fun, and I saw several KR= s that rekindled my interest in continuing. When we returned, I took a belt= sander and sanded almost all the way down to the polyurethane. I re-laminat= ed with a fiberglass weave that isn't of the same quality as y'all have in No= rth America, but which works well. The fuselage is lengthened 50 centimeters (20 inches), as well as the= wings, because the motor that I am able to use in Argentina is the Renault 1= 600 (80 hp) which weighs 100 kg. When I built the fuselage, I didn't know th= at it was better to widen it by 2 inches, so it's the original 38 inches. I am developing a retractable gear from a Poliwagen. The Lancair use= s a similar gear. I still haven't decided if the retract mechanism will = be gear-driven or hydraulic. With kindest regards, Eduardo Iglesias -----Original Message----- =46rom: Eduardo M Iglesias To: isleno@hargray.com Date: Wednesday, March 31, 1999 6:04 PM Subject: Comienzo a comunicarme Estimado Kimball Muy bueno tu espa=F1ol. Ante todo, agradezco la buena disposici=F3n para la tarea de traducir= me. Compr=E9 los planos del KR2 en 1982 y comenc=E9 a trabajar luego de l= eerlos varias veces hasta llegar a entenderlos. Constru=ED los planos de cola (empenaje) y luego el fuselaje. Finalme= nte la parte exterior de las alas. Luego de lijar prolijamente durante casi todos los fines de semana li= bres, comenc=E9 a laminar con fibra de vidrio de 220 gr../mt (1,55 oz/f2?) = y epoxi. Una vez finalizado, consegu=ED despu=E9s de mucho tiempo, las microes= feras de vidrio -microbaloons) y masilla y lij=E9 hasta que me pareci=F3 bien.= Le di a todo varias manos de pintura de base y lija fina... Luego de un tiempo, se comenz=F3 a ampollar (to make a bubbles) todo = lo que hab=EDa hecho! Las ampollas se hicieron entre la resina y la masilla.= -putty-. Lo dej=E9 mucho tiempo sin tocarlo (y sin mirarlo). En 1997 fuimos a Sun=B4n fun con unos amigos y vi algunos KR que me devolvieron las ganas de continuar. Cuando regresamos, tom=E9 una lijadora de banda (sanding machine) y l= ij=E9 hasta casi llegar al poliuretano. Lamin=E9 de nuevo con una tela de vidrio -rowing- que no tiene la mis= ma calidad que la que Uds. tienen en Norteam=E9rica, pero queda bien. El fuselaje est=E1 alargado en 50 cm (20=B4) y las alas igual, porque= el motor que puedo usar en Argentina es el Renault 1600 (80 Hp) y pesa 100 Kg.= Cuando constru=ED el fuselaje no sab=EDa que era mejor ensancharlo en 2=B4, = por lo que tiene las 38=B4 originales. Estoy desarrollando un tren retr=E1ctil tomado del Poliwagen. El Lanc= air usa uno similar. A=FAn no he decidido si la retracci=F3n se har=E1 con un sinf=EDn -helicoide- o con cilindro hidr=E1ulico. Creo que por hoy es demasiado y temo abusar de tu paciencia. Un cordial saludo. Eduardo Iglesias ---------------------------------------------------------------------- Subject: Re: Taildragger Endorsement! From: Ron Lee Date: Thu, 01 Apr 1999 21:48:11 -0700 X-Message-Number: 22 >I got my Taildragger endorsement yesterday, and I am Motivated! > >This was terrific fun, and I got to fly around this morning solo >and did two pretty good wheel landings, and one out of two good >three point landings. Woo HOO!!! > > -- Ross Amazing! out of 10 landings I expect only one to be worth bragging about. The rest usually clear the airfield of most spectators except the foolhardy or those with a death wish. Ron Lee ---------------------------------------------------------------------- Subject: Re: Plans/Projects for sale??? From: "Steve Glover" Date: Thu, 1 Apr 1999 22:3:36 X-Message-Number: 23 Thanks! That place is great! ---------------------------------------------------------------------- Subject: Re: epoxy From: Michael Taglieri Date: Fri, 02 Apr 1999 01:42:32 EST X-Message-Number: 24 >>The fact that all-composite planes haven't endorsed West epoxy doesn't >necessarily mean it's won't work fine on a wooden plane where the epoxy only >bonds the skin to the wooden members that carry the real stress. It seems >almost universally agreed that T-88 is best for bonding wood to wood, so I'm >just talking about glass to wood and glass to foam. If I finally get a place to >build a plane, I personally will go with the least smelly and allergy-prone epoxy >that's strong enough to do the job. > >Mike, >Where does the stress in the spars come from - the wing skins. So, yes the >skins do have a load imparted on them. > >When selecting epoxy, or anything for an airplane, for that matter, the >allergenicity or smell should be the LAST concern. The properties of the >substance including strength, long term durability, and application should >be the factors that are considered during the decision making process. I'm >not saying that the West Systems epoxies aren't good enough, I'm just saying >that the fact that there is controversy over the use of these in aircraft is >enough to make me choose an alternative, and there are lots of alternatives >out there. Also, if you ask West systems if their epoxies are any good >- >what do you think they will say? They have a vested interest in the matter. >Try to obtain information from an impartial source. You answered without reading carefully what I said in my post: I did NOT say that there was no load on the wing skins with a wooden skeleton in the wing. I said the requirements for an epoxy may be different than for a plane where the whole wing including the spars is composite. For example, if Rutan, Stoddard-Hamilton, etc. say something about glassing or epoxy, it doesn't necessarily apply to a KR -- if their rules were gospel, we should all glue our foam blocks together exclusively with epoxy slurry, but you can glue foam together with virtually anything on a KR because the foam/glass combination is not the primary carrier of stress. In addition, I did NOT say I was going to use the least-allergenic epoxy. I said I was going to use the least allergenic-epoxy "that's strong enough to do the job." Allergenicity is an important question to me, because a homebuilt is not much good to me if I have too sell it half-done because of epoxy poisoning, or wind up a semi-invalid when it's done. Several people in the history of the Newsletters have done both. Finally, EVERYONE has a "vested interest" in these matters -- not only all the epoxy companies, but all the people on this list who have used a particular epoxy because they want validation that they've done the right thing. This is not to put anyone down -- it's a basic trait of human nature. In my experience, the best way to get "an impartial source" is to get information from all the "partial" sources and compare it together, and certainly not to believe the advice of someone who claims to be an impartial source. I've learned a great deal from Internet lists and Newsletters, but I never trust anything that ANYONE says until I've tested it myself. Mike Taglieri _____________________________________________ "Fundamentally the marksman aims at himself." - from Zen And the Art of Archery ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866] --- END OF DIGEST --- You are currently subscribed to kr-net as: johnbou@timberline.com To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com