From: To: Subject: krnet Digest 31 Dec 2000 18:05:47 -0000 Issue 146 Date: Sunday, December 31, 2000 10:06 AM krnet Digest 31 Dec 2000 18:05:47 -0000 Issue 146 Topics (messages 3437 through 3452): composite question 3437 by: Drew Swenson 3439 by: Mark Langford 3441 by: Brian Vasseur Thanks 3438 by: Cleo Greenhaw Nomex 3440 by: Frank Ross Re: Revemaster Aviation 3442 by: Gognij.aol.com Re: Blocking Inside the Stations 3443 by: Gognij.aol.com Diehl wing aileron spars 3444 by: Ralph H Snyder nice KR trigear 3445 by: Oscar Zuniga elevator spars 3446 by: John Esch 3448 by: Albert Pecoraro 3450 by: John Esch Progress & Photos 3447 by: Mark Jones Re: KR profiles 3449 by: Tuberflora Kwekery/Nursery subaru engine 3451 by: SLemke1.aol.com Wallpaper 3452 by: Edwin Blocher Administrivia: To subscribe to the digest, e-mail: To unsubscribe from the digest, e-mail: To post to the list, e-mail: ---------------------------------------------------------------------- Date: Thu, 28 Dec 2000 20:32:16 -0500 (EST) To: krnet@mailinglists.org From: Drew Swenson Subject: composite question Message-ID: <385242135.978053539808.JavaMail.root@web192-wra> I know that the KR2 is not a composite build aircraft, but it does have some fiberglass used in construction. I was wandering if any-one has heard of Nomex fabric by DuPont? It is avalible to the general public and is very, very, very strong, but has anyone seen any application used? And how much better it Kevlar than glass and grafite? thanks, Drew ------------------------------ Date: Thu, 28 Dec 2000 19:43:41 -0600 To: From: "Mark Langford" Subject: Re: KR> composite question Message-ID: <036c01c07138$c5cf0540$561cf618@600athlon> Drew Swenson wrote: > I know that the KR2 is not a composite build aircraft, but it does have some >fiberglass used in construction. I was wandering if any-one has heard of >Nomex fabric by DuPont? I don't know about Nomex fabric itself (never heard of it used by itself in a layup, but I'm sure somebody's tried it), but Nomex is normally used in aircraft in a honeycomb shape as the core material for prepreg composites that are to be vacuum bagged. It acts as a "spacer" between top and bottom layers of laminate. It's used in everything from fighter jets to the space shuttle, so it's about as strong for the weight as you can get, when sandwiched between layers of carbon fiber. It's unsuitable for home use because by the time you wet out your fiberglass or carbon fiber, you'll have soaked the honeycomb and your composite panel will weigh waaaaay too much, not to mention the price of the stuff. Prepreg has to be frozen while stored and then cooked in an oven to cure, so there's why you don't want to use THAT stuff at home either... Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ------------------------------ Date: Thu, 28 Dec 2000 18:58:08 -0700 To: "Drew Swenson" , From: "Brian Vasseur" Subject: Re: KR> composite question Message-ID: <028e01c0713a$cae63420$2c45e4cf@C5477> Many people are abandoning Kevlar. The problem found with Kevlar is that any open ends can wick up moisture if they're not sealed perfectly. Once they absorb moisture they expand breaking down the structure. I don't know if this is a freeze/thaw thing or just an expansion problem. It's a fantastic product but if you get a delam because of moisture you're stuck with no choice but to sand it all off and start over. ----- Original Message ----- From: "Drew Swenson" To: Sent: Thursday, December 28, 2000 6:32 PM Subject: KR> composite question > I know that the KR2 is not a composite build aircraft, but it does have some fiberglass used in construction. I was wandering if any-one has heard of Nomex fabric by DuPont? It is avalible to the general public and is very, very, very strong, but has anyone seen any application used? And how much better it Kevlar than glass and grafite? > > thanks, > Drew > > > > > --------------------------------------------------------------------- > To post to the list, email: krnet@mailinglists.org > To unsubscribe, e-mail: krnet-unsubscribe@mailinglists.org > For additional commands, e-mail: krnet-help@mailinglists.org > > ------------------------------ Date: Thu, 28 Dec 2000 19:48:22 -0600 To: From: "Cleo Greenhaw" Subject: Thanks Message-ID: <003701c07139$6e534780$596a67ce@cleogree> ------=_NextPart_000_0034_01C07107.22DEA420 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks to all that answered my questions on the Revmaster. I have all = of the imformation. Now I am going to stick it on the front and proceed = to complete this little birdy. The Revmaster ph number is = 1-760-244-3074. Thanks. Won't bother you all unless I get stumped !! = Cleo@fullnet.net=20 ------=_NextPart_000_0034_01C07107.22DEA420-- ------------------------------ Date: Thu, 28 Dec 2000 17:58:53 -0800 (PST) To: krnet@mailinglists.org From: Frank Ross Subject: Nomex Message-ID: <20001229015853.27603.qmail@web4703.mail.yahoo.com> Isn't Nomex also the stuff used in flight suits/gloves and auto-racing suits to fire-proof them? Gotta be way expensive. Someone building a KR Space-Shuttle? ===== Frank Ross, San Antonio, TX, __________________________________________________ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ ------------------------------ Date: Fri, 29 Dec 2000 00:55:35 EST To: rlspjs@dashlink.com, krnet@mailinglists.org From: Gognij@aol.com Subject: Re: KR> Revemaster Aviation Message-ID: <51.571bde2.277d8157@aol.com> Bob, they are still in business. Telephone number is 760 244 3074. Revmaster Aviation P.O. Box 402077 Hesperia, CA 92340 This company has been in business since 1969. It is my understanding that Revmaster helped Ken Rand with the engine installation work on the KR2. ------------------------------ Date: Fri, 29 Dec 2000 00:58:54 EST To: pjohnson@voyageur.ca, krnet@mailinglists.org From: Gognij@aol.com Subject: Re: KR> Blocking Inside the Stations Message-ID: Peter..........I did...........Jim Gogniat ------------------------------ Date: Thu, 28 Dec 2000 22:03:56 -0800 To: krnet@mailinglists.org From: Ralph H Snyder Subject: Diehl wing aileron spars Message-ID: <20001228.220405.-511771.2.ralphndori@juno.com> Netters Someone said the hinge mounting spars have to be glassed to keep them from coming loose where they are epoxied into the skins. Would you please explain that a little further, as I do not have any glass on mine and I want to know if I should remove them, make new spars and glass them in. Thanks Ralph in CA ralphndori@juno.com ------------------------------ Date: Fri, 29 Dec 2000 14:51:57 To: krnet@mailinglists.org From: "Oscar Zuniga" Subject: nice KR trigear Message-ID: Mogens Pedersen [mogensmp@mail.tele.dk] wrote: >I live in Denmark look at: http://home13.inet.tele.dk/oyrv6a Hey, check out this site. Very clean KR (despite the fact that it has the tailwheel installed in the wrong place)! You Danish wanna-be KR people can pick up a very nice, ready-to-fly plane for $7000, with a Type 4 VW. Now the question is, are those American dollars, or what? Oscar Zuniga Medford, Oregon mailto: taildrags@hotmail.com website at http://www.geocities.com/taildrags/ _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com ------------------------------ Date: Fri, 29 Dec 2000 21:12:20 -0800 To: KR Net From: John Esch Subject: elevator spars Message-ID: <3A4D6EB4.7B941188@earthlink.net> Howdy all, I am confused on how thick the elevator spars should be tapered to. Is it 1/2 inch or 5/8 inch on the -2S ? The rudder is tapered to 1/2 inch and I am wondering if the elevator spars should be the same or go by what the manual says 5/8 inch? John F. Esch Taxiway Bonanza Independence, OR ------------------------------ Date: Sat, 30 Dec 2000 08:59:01 -0500 To: "kr2s group" From: "Albert Pecoraro" Subject: Re: KR> elevator spars Message-ID: <000a01c07268$ab00de60$87d1b23f@steelcase.com> >>> I am confused on how thick the elevator spars should be tapered to. Is it 1/2 inch or 5/8 inch on the -2S? The rudder is tapered to 1/2 inch and I am wondering if the elevator spars should be the same or go by what the manual says 5/8 inch? John F. Esch<<< John, Good day. I am looking at Drawing A from the "S" supplements and page 46 of the manual (drawing #44). For the 2S, the changes to the elevator are in the length of the inner rib (template D is 12" instead of 11 1/4"), the outer rib (it is 9 1/2" instead of 8 1/2"), and the maximum thickness of the spar (it is 1 3/4" instead of 1 7/8" and tapers to 5/8" at the tips to mate with the outer rib, which is also 5/8"). If you consider the ends of the horizontal stabilizer, they are 5/8" thick also (page 47, drawing #45). This dimension seems to have been applied to the elevator tips as well. So, to answer the question: taper to 5/8" on the 2S according to the manual. The changes to the rudder/tailpost dimensions for the 2S are outlined in Drawing B and page 14 of the manual (drawing #6) and do not indicate that the taper in the elevator needs to be the same as the taper in the rudder. I hope this helps. A safe and happy New Year to everyone. :-) Albert Pecoraro ------------------------------ Date: Sat, 30 Dec 2000 10:06:18 -0800 To: Albert Pecoraro From: John Esch CC: kr2s group Subject: Re: KR> elevator spars Message-ID: <3A4E241A.6F1C35AE@earthlink.net> That does help. That is what I come up with except I did miss the height of the spar and I already tapered the elevator spar last night. Since I did cut to the 5/8 inch at the tips all I need to do is take off a 1/16 off the top and bottom of the spar and retaper, I should be ok then. This is order to make the 1 3/4 height requirement. What if I leave the height alone and just expand height of the airfoil 1/8 inch? This shouldn't change the airfoil shape that much except for changing the leading edge by an 1/8. John F. Esch Albert Pecoraro wrote: > >>> I am confused on how thick the elevator spars should be tapered to. Is > it 1/2 inch or 5/8 inch on the -2S? The rudder is tapered to 1/2 inch and I > am wondering if the elevator spars should be the same or go by what the > manual says 5/8 inch? > > John F. Esch<<< > > John, > > Good day. I am looking at Drawing A from the "S" supplements and page 46 of > the manual (drawing #44). For the 2S, the changes to the elevator are in the > length of the inner rib (template D is 12" instead of 11 1/4"), the outer > rib (it is 9 1/2" instead of 8 1/2"), and the maximum thickness of the spar > (it is 1 3/4" instead of 1 7/8" and tapers to 5/8" at the tips to mate with > the outer rib, which is also 5/8"). If you consider the ends of the > horizontal stabilizer, they are 5/8" thick also (page 47, drawing #45). This > dimension seems to have been applied to the elevator tips as well. So, to > answer the question: taper to 5/8" on the 2S according to the manual. > > The changes to the rudder/tailpost dimensions for the 2S are outlined in > Drawing B and page 14 of the manual (drawing #6) and do not indicate that > the taper in the elevator needs to be the same as the taper in the rudder. > > I hope this helps. > > A safe and happy New Year to everyone. :-) > > Albert Pecoraro > > --------------------------------------------------------------------- > To post to the list, email: krnet@mailinglists.org > To unsubscribe, e-mail: krnet-unsubscribe@mailinglists.org > For additional commands, e-mail: krnet-help@mailinglists.org ------------------------------ Date: Fri, 29 Dec 2000 23:57:05 -0600 To: KR-Net , CorvAIRCRAFT From: Mark Jones Subject: Progress & Photos Message-ID: <3A4D7930.9F281CB3@execpc.com> Hi Gang, I have been steadily working on my Corvair engine the last few days. I have just finished posting new photos on my site. Please take a look if you are interested. http://sites.netscape.net/n886mj/homepage -- Mark Jones (N886MJ) Wales, WI USA E-mail me at mailto:flykr2s@execpc.com Visit my KR-2S CorvAIRCRAFT web site at http://sites.netscape.net/n886mj/homepage ------------------------------ Date: Sat, 30 Dec 2000 16:32:23 +0200 To: From: "Tuberflora Kwekery/Nursery" Subject: Fw: KR profiles Message-ID: <003d01c0726d$53f8f440$c7bc16c4@adele> ------=_NextPart_000_003A_01C0727E.166C0E80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hallo netters Where can I get profile drawings (side and top silhouette) for a KR2. I = would like to try out my finishing designs on paper first. =20 Best of the new year wished upon you all =20 Johan de Jong Johannesburg,South Africa tuber@netactive.co.za ------=_NextPart_000_003A_01C0727E.166C0E80-- ------------------------------ Date: Sat, 30 Dec 2000 19:08:48 EST To: krnet@mailinglists.org From: SLemke1@aol.com Subject: subaru engine Message-ID: <6b.ddfd6c9.277fd310@aol.com> --part1_6b.ddfd6c9.277fd310_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hey netters how are the projects coming! I think I may have found a deal on a subaru engine but I need some help on identification of the engine. At a local U Pul It junk yard they just towed in a 2 door hatch back subaru almost totaly demolished. I can read turbo all wheel drive on the engine cover and "RX AWD" in 6" high letters on the rocker panels. Other than that the car has been totally munched beyond identification. It looks about a 1989 but I am not sure. The question is - Is this a EA81 or EA82 turbo or something I don't want. I have to remove the engine by this tuesday or it will be to late. Steve Lemke Omaha NE PS they only want $50 for the engine --part1_6b.ddfd6c9.277fd310_boundary-- ------------------------------ Date: Sun, 31 Dec 2000 12:02:27 -0600 To: "KRNet" From: "Edwin Blocher" Cc: "corvaircraft" Subject: Wallpaper Message-ID: <001401c07353$d8981820$bde879a5@computer> ------=_NextPart_000_0011_01C07321.8BA2EF40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I finally got tired of running back to the computer and pulling up = Langfords web-site to look at rudder pedals si set his cad drawings as = wallpaper until I'm ready to move to something else. I'm going to do a = lot of this when I get into my engine. There are so many sites with so = many good pictures that I'm going to use. Too cold in my shop to work on = spars today. I did get the web on one side of the rear center section = this week (bent spar). Pictures to come as soon as I figure out this = HTML. Happy New Year! Ed Blocher Moody, Alabama kr-n899eb@mindspring.com ------=_NextPart_000_0011_01C07321.8BA2EF40-- ------------------------------ End of krnet Digest ***********************************