From: owner-krnet-l-digest@teleport.com[SMTP:owner-krnet-l-digest@teleport.com] Sent: Sunday, January 04, 1998 12:58 AM To: krnet-l-digest@teleport.com Subject: krnet-l-digest V2 #2 krnet-l-digest Sunday, January 4 1998 Volume 02 : Number 002 ---------------------------------------------------------------------- Date: Sat, 3 Jan 1998 10:55:31 -0600 From: "Randy Stout" Subject: KR: GLUE AND SPARS This is a multi-part message in MIME format. - ------=_NextPart_000_0006_01BD1836.1C30C220 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I'm about to order the wood and glue to build my spars. Since I bought = the fuselage already built, I have no experience with the glue. I'm = considering T-88, mainly because it's winter and the temperature is = unpredictable in these parts. (one day it's 30 the next it's 70) Also the one or two of the pieces need to make the spars are larger than = the lumber listed in both Aircraft Spruce and Wicks catalogs. I was = wondering if it would be O.K. to glue two pieces together to make the = correct size. If this is allowed, is it recommended to stack the boards = on top of each other or side by side. =20 Randy Stout - San Antonio TX r5t0ut@flash.net - ------=_NextPart_000_0006_01BD1836.1C30C220 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I'm about to order the wood and glue to build my = spars. Since=20 I bought the fuselage already built, I have no experience with the = glue. =20 I'm considering T-88, mainly because it's winter and the temperature is=20 unpredictable in these parts. (one day it's 30 the next it's = 70)
 
Also the one or two of the pieces need to make the = spars are=20 larger than the lumber listed in both Aircraft Spruce and Wicks = catalogs. =20 I was wondering if it would be O.K. to glue two pieces together to make = the=20 correct size.  If this is allowed, is it recommended to stack the = boards on=20 top of each other or side by side.
 
Randy Stout - San Antonio TX
r5t0ut@flash.net
= - ------=_NextPart_000_0006_01BD1836.1C30C220-- ------------------------------ Date: Sat, 03 Jan 1998 11:37:22 From: Austin Clark Subject: Re: KR: Gluing Foam Ron, I tried all those also and found that 'Bondo' works best for me. At 09:40 1/3/98 -0500, you wrote: >As a new member to the KRNET and someone who has just started working with >foam and fiberglass. I have glassed the stabilizer and the elevator, but >have not been happy with the method of gluing the foam to the structure. I >have tried straight epoxy, hot glue, carpenters glue... Can anyone give me >any ideas they were satisified with. >Thanks. > >Ron Brown > >rjbrown@tir.com >rjbrown4@juno.com > > Austin Clark Pascagoula, MS http://www.datasync.com/~itac/ ------------------------------ Date: Sat, 03 Jan 1998 18:10:02 GMT From: bbland@busprod.com (Brian Bland) Subject: Re: KR: GLUE AND SPARS On Sat, 3 Jan 1998 10:55:31 -0600, you wrote: >I'm about to order the wood and glue to build my spars. Since I bought = the fuselage already built, I have no experience with the glue. I'm = considering T-88, mainly because it's winter and the temperature is = unpredictable in these parts. (one day it's 30 the next it's 70) > >Also the one or two of the pieces need to make the spars are larger than= the lumber listed in both Aircraft Spruce and Wicks catalogs. I was = wondering if it would be O.K. to glue two pieces together to make the = correct size. If this is allowed, is it recommended to stack the boards = on top of each other or side by side. >=20 >Randy Stout - San Antonio TX >r5t0ut@flash.net Randy, I would recommend that you use the T-88. It is a great epoxy. As for the spars....Yes it is OK to laminate the spars. I think it would be nearly impossible to get them one piece. From what I know it should not matter if it is side by side or on top of each other. Just glue the pieces together so that the grain is running the same way and if possible it is recommended that the grain be vertical to put minimal shearing stress on the glue lines with the ply as the wood comes and goes with changes in moisture. =20 Check out Mark Langford's http://fly.hiwaay.net/~langford/ or Mike Mims http://home.pacbell.net/mikemims/ web site's if you can to see the spar construction........ Brian J. Bland, PP, A&P Claremore, OK Building stretched and widened KR-2S=20 KR-2SBuilder@bigfoot.com http://www.KR-2S.home.ml.org ------------------------------ Date: Sat, 03 Jan 1998 14:30:57 -0600 From: Ed Janssen Subject: Re: KR: Gluing Foam At 09:40 AM 1/3/98 -0500, you wrote: >As a new member to the KRNET and someone who has just started working with >foam and fiberglass. I have glassed the stabilizer and the elevator, but >have not been happy with the method of gluing the foam to the structure. I >have tried straight epoxy, hot glue, carpenters glue... Can anyone give me >any ideas they were satisified with. >Thanks. > >Ron Brown > >rjbrown@tir.com >rjbrown4@juno.com > >Ron, I like something that will set up pretty fast. I've had success with 5 minute epoxy (in the hypodermic type containers), micro (epoxy + microballoons) mixed to something a little bit short of peanut butter consistancy), and canned insulating foam (the type you find in building supply places). You're objective is to just keep the foam in place until you're ready to glass over it - not necessarily to give it much structural strength. Wherevever you glue foam to itself or to another structure, bear in mind that you will probably need to do some sanding in that spot as well. For example, don't put glue near the surface of where a piece of foam meets another piece of foam or you may end up having to cut a V out of the joint so that you cansand in that area - in other words, the glue line will sand much harder than the foam next to it. Ed Janssen ------------------------------ Date: Sat, 3 Jan 1998 15:47:44 EST From: EagleGator Subject: Re: KR: Re: Condition Inspection Checklist In a message dated 98-01-02 02:35:01 EST, you write: << Glad to! VBRGDS Marty -----Original Message----- From: EagleGator To: krnet-l@teleport.com Date: 01 January, 1998 15:40 Subject: KR: Condition Inspection Checklist >I've uploaded an inspection checklist to my web page... >> Thanks Marty. I think if we can coax people into just starting something like this, especially at the gatherings, it will catch on. I'm still working on how to get everyone to take some ownership, since we're talking about each individual's safety and proficiency. We'll see how it goes! Cheers! Rick ------------------------------ Date: Sat, 03 Jan 1998 14:57:09 -0600 From: Ed Janssen Subject: Re: KR: GLUE AND SPARS Randy, T-88 is an excellent choice of glue. Not sure if you mean longer instead of larger? It is permissible to glue wood together, providing some rules are followed. To get you started, as a rule of thumb, the two pieces should be "scarfed" together so that the over all length of the joint is approx 12 times the thickness of your stock lumber. There are some very good woodworking books available that will explain this sort of thing plus alot of other tips in using wood for building airplanes. I'm sure someone else out there is chomping at the bit to tell you more. Chomp on , guys. Tell us more about your experience building, flying, whatever - and ask some more questions. It'll give the guys on the KRnet an idea about where to start giving you some info. Am I being too basic in asking if you are aware of EAA and its benefits? Ed Janssen >I'm about to order the wood and glue to build my spars. Since I bought the fuselage already built, I have no experience with the glue. I'm considering T-88, mainly because it's winter and the temperature is unpredictable in these parts. (one day it's 30 the next it's 70) > >Also the one or two of the pieces need to make the spars are larger than the lumber listed in both Aircraft Spruce and Wicks catalogs. I was wondering if it would be O.K. to glue two pieces together to make the correct size. If this is allowed, is it recommended to stack the boards on top of each other or side by side. > >Randy Stout - San Antonio TX ------------------------------ Date: Thu, 1 Jan 1998 00:08:50 -0800 From: "parley t. byington" Subject: Re: KR: props Jim I flew from Boulder City to Jean Nevada on 1/1/98 in a flight of two. The other pilot was Ken Mintz in his Vari Eze (N86KM). I noted the following: At 5000' MSL OAT was 50 degrees F. IAS was 162 MPH, Manifold preasure = 28 inches Hg. RPM = 3570. Gross wt = about 1040 LBS. I had 18 gal of fuel and a 236 LBS pilot. We are going to double check our numbers against a GPS when the wind dies down out here. I will let you know what I get on the next go round with several other speeds as well. The climb rate out of Boulder city was only about 400 ft/min with full fuel. Regards Parley ------------------------------ Date: Sat, 03 Jan 1998 17:15:21 -0500 From: Donald Reid Subject: Re: KR: GLUE AND SPARS Randy Stout wrote: > > I'm about to order the wood and glue to build my spars. I'm > considering T-88, mainly because it's winter I used the T88 and have been very pleased with it. The glue dispenser that you can get is very handy for small jobs. If you use it, the mixing tubes can be saved and reused if you blow them out with compressed air, run a little acetone or MEK through it, put it in a plastic bag in the freezer. > Also the one or two of the pieces need to make the spars are larger > than the lumber listed in both Aircraft Spruce and Wicks catalogs. EAA has a good book on wood construction techniques. You can get it either through the EAA or one of the suppliers like AS&S or Wicks. - -- Don Reid mailto:donreid@erols.com http://www.erols.com/donreid/kr_page.htm ------------------------------ Date: Sat, 03 Jan 1998 17:18:45 -0500 From: Donald Reid Subject: Re: KR: Gluing Foam Ron Brown wrote: > have not been happy with the method of gluing the foam to the structure. I > have tried straight epoxy, hot glue, carpenters glue... Can anyone give me > any ideas they were satisified with. Any glue or technique can be used as long as the glue joint is stronger than the foam. In other words, almost anything. Micro slurry worked the best for me. - -- Don Reid mailto:donreid@erols.com http://www.erols.com/donreid/kr_page.htm ------------------------------ Date: Sat, 03 Jan 1998 22:59:08 GMT From: bbland@busprod.com (Brian Bland) Subject: KR: Plywood Hello everyone! I just had a quick question. How flexible is the 3/32" Mahogany or Birch ply? I have found an excellent source of plywood. They have it with 3 equal plys which is flexible and with a thicker inner ply which is not as flexible. The flexible wood only comes in 3'x6' sheets. I can get the other in 4'x8' sheets. I would prefer to get the 4'x8' sheets. Also does it matter which way the grain runs on the fuselage? I know the plans say it does on the spars, but I didn't see anything about the fuse. Any comments? =20 Thanks, Brian J. Bland, PP, A&P Claremore, OK Building stretched and widened KR-2S=20 KR-2SBuilder@bigfoot.com http://www.KR-2S.home.ml.org ------------------------------ Date: Sat, 03 Jan 1998 18:06:34 -0500 From: Patrick Flowers Subject: Re: KR: Sun & Fun Motel Rooms. KR2 616TJ wrote: > > It's planning time, > A couple of weeks ago someone floated the idea that we should > all stay at the same motel at Sun & Fun. That was me, and the response was rather underwhelming at the time, but I'm still up for it. Even if we don't get a group rate, it would be a great opportunity to have a few after hours cool ones with the KRNet gang. > I have stayed at the Budgetel Inn, Tampa Fairgrounds. This motel is on the > Lakeland side of Tampa and is within about 20 minutes as I remember, it's not > much of a drive. I called tonight and checked on the availability of rooms > and was told they have as many rooms as we would need. Sounds good to me! Patrick - -- Patrick Flowers Mailto:patri63@ibm.net ------------------------------ Date: Sat, 03 Jan 1998 17:04:27 -0800 From: Ross Subject: Re: KR: props Doug, I am going to fly behind a Great Plains 1835cc VW conversion and a fixed pitch prop. I'm not yet flying, but that's what I choose. There are several KR2S builders flying behind the Soob powerplant and I think it is an attractive alternative. However locating an engine mount, and engineering the cooling system might be a chore, if you build your own. There are a few outfits who do firewall forward kits for the Soob engine, but expect to pay > $6000 for this. One vendor in Washington sells a complete engine for $4995 or so (Stratus). The conventional wisdom I'm hearing these days is that NSI is difficult to do business with, however at one time I was told that their machine work was very good. Recently I think this may not be the case. There is one KRNETTer who is living in Japan (I forget his name at the moment). He has a supply of Subaru engines for export and can help you if you drop him an email. (Someone help me out here...) I'm preparing for tonights EAA chapter meeting, so don't have time to look it up. (As if I ever do.) -- Ross Douglas Dorfmeier wrote: > > parley t. byington wrote: > > > > Tom > > > > I have a turbo charged 1835 VW. I installed a Aymar- Demuth 52X48 on > > my bird. I get 750 ft/min at 1000 lbs wt. I used a climb speed of > > 100 IAS for this figure. OAT was 50 deg. and preasure alt. was about > > 4000'. > > > > My top speed is 170 mph straight and level but I don't remember the rpm > > and manifold preasure exactly for this number. I plan on flying again > > 1/1/98 if your interested I will let you know the exact numbers. > > > > Regards > > Parley (N54PB) > I am one of the newest krnet members. I am planning on purchasing a > KR2S kit in about a month. It is obvious from the emails I have read so > far that their is a lot knowledge in this group that I would like to > take advantage of. My biggest concern right now is what engine to > choose. Reliability while maximizing cruise speeds is my primary > objective. I am also contemplating installing a constant speed prop. I > would greatly appreciate input from any of the Krnet members. ------------------------------ Date: Sat, 03 Jan 1998 17:06:55 -0800 From: Ross Subject: Re: KR: Gluing Foam Ron, The five minute epoxy wasn't my favorite but I used it for 80% of my project, then I started with hot glue... this was my favorite, even with the burnt fingers and expletives. Some members have done well using the spray expand-a-foam to join foam. There has been some concern over the expansion of this stuff at the joints over time...(from past krnet threads). I think that the concern may be overrated, but I haven't used the stuff myself. Hot glue was nifty... less mess. -- Ross Ron Brown wrote: > > As a new member to the KRNET and someone who has just started working with > foam and fiberglass. I have glassed the stabilizer and the elevator, but > have not been happy with the method of gluing the foam to the structure. I > have tried straight epoxy, hot glue, carpenters glue... Can anyone give me > any ideas they were satisified with. > Thanks. > > Ron Brown > > rjbrown@tir.com > rjbrown4@juno.com ------------------------------ Date: Sat, 3 Jan 1998 20:03:01 EST From: Willard561 Subject: Re: KR: Plywood let us know more ------------------------------ Date: Sat, 03 Jan 1998 17:09:49 -0800 From: Ross Subject: Re: KR: GLUE AND SPARS I used HEXEL structural adheasive for most of my glue joints, and HEXEL laminating adheasive for building up the spar caps. (The laminating adheasive was a thinner mixture). At the time I lived in Phoenix, so I bought the SLOW cure. Clamping some parts was troublesome, but I didn't want the stuff going stringy on me on a 105 degree day. I mixed it in 3oz dixie cups 50/50 mix. So always worked with small batches. (On the wood). T-88 I believe is very similar to the HEXEL adheasive. - -- Ross > Randy Stout wrote: > > I'm about to order the wood and glue to build my spars. Since I bought > the fuselage already built, I have no experience with the glue. I'm > considering T-88, mainly because it's winter and the temperature is > unpredictable in these parts. (one day it's 30 the next it's 70) > > Also the one or two of the pieces need to make the spars are larger > than the lumber listed in both Aircraft Spruce and Wicks catalogs. I > was wondering if it would be O.K. to glue two pieces together to make > the correct size. If this is allowed, is it recommended to stack the > boards on top of each other or side by side. > > Randy Stout - San Antonio TX > r5t0ut@flash.net ------------------------------ Date: Sun, 04 Jan 1998 01:11:52 GMT From: bbland@busprod.com (Brian Bland) Subject: Re: KR: Plywood On Sat, 3 Jan 1998 20:03:01 EST, you wrote: >let us know more The plywood is called Hoop Pine Plywood. It is a product of Australia. I will put the information on my web page if there is enough interest. A 4'x8' sheet of 3mm is $42.00. It is stronger than Mahogany but weighs about the same (Roughly 10# for a 4'x8' sheet). The quality is tremendous and it is made with the same glue that the "Aircraft Ply" is made of. =20 Brian J. Bland, PP, A&P Claremore, OK Building stretched and widened KR-2S=20 KR-2SBuilder@bigfoot.com http://www.KR-2S.home.ml.org ------------------------------ Date: Sat, 03 Jan 1998 17:18:37 -0800 From: Ross Subject: Re: KR: props Ross wrote: > There is one KRNETTer who is living in Japan (I forget his name at the > moment). He has a supply of Subaru engines for export and can help ^^ ^^^ He has located a supplier of Subaru engines... (correction) > you if you drop him an email. (Someone help me out here...) > > I'm preparing for tonights EAA chapter meeting, so don't have time > to look it up. (As if I ever do.) > > -- Ross > > Douglas Dorfmeier wrote: > > > > parley t. byington wrote: > > > > > > Tom > > > > > > I have a turbo charged 1835 VW. I installed a Aymar- Demuth 52X48 on > > > my bird. I get 750 ft/min at 1000 lbs wt. I used a climb speed of > > > 100 IAS for this figure. OAT was 50 deg. and preasure alt. was about > > > 4000'. > > > > > > My top speed is 170 mph straight and level but I don't remember the rpm > > > and manifold preasure exactly for this number. I plan on flying again > > > 1/1/98 if your interested I will let you know the exact numbers. > > > > > > Regards > > > Parley (N54PB) > > I am one of the newest krnet members. I am planning on purchasing a > > KR2S kit in about a month. It is obvious from the emails I have read so > > far that their is a lot knowledge in this group that I would like to > > take advantage of. My biggest concern right now is what engine to > > choose. Reliability while maximizing cruise speeds is my primary > > objective. I am also contemplating installing a constant speed prop. I > > would greatly appreciate input from any of the Krnet members. ------------------------------ Date: Sun, 04 Jan 1998 01:35:58 GMT From: bbland@busprod.com (Brian Bland) Subject: KR: Information wanted Hello everyone! I am trying to get the info on the KRNet subscribers. If you could please e-mail me privately with your: Name Where you live What you are building or hoping to build I am going to put together info so that people can find out who's e-mail address goes with what name and where you're located..... Thanks, Brian J. Bland, PP, A&P Claremore, OK Building stretched and widened KR-2S=20 KR-2SBuilder@bigfoot.com http://www.KR-2S.home.ml.org ------------------------------ Date: Sat, 03 Jan 1998 17:34:49 -0800 From: Douglas Dorfmeier Subject: Re: KR: props Ross wrote: > > Doug, > I am going to fly behind a Great Plains 1835cc VW conversion and > a fixed pitch prop. I'm not yet flying, but that's what I choose. > > There are several KR2S builders flying behind the Soob powerplant > and I think it is an attractive alternative. However locating an > engine mount, and engineering the cooling system might be a chore, if > you build your own. There are a few outfits who do firewall forward > kits for the Soob engine, but expect to pay > $6000 for this. One > vendor in Washington sells a complete engine for $4995 or so (Stratus). > > The conventional wisdom I'm hearing these days is that NSI is difficult > to do business with, however at one time I was told that their machine > work was very good. Recently I think this may not be the case. > > There is one KRNETTer who is living in Japan (I forget his name at the > moment). He has a supply of Subaru engines for export and can help > you if you drop him an email. (Someone help me out here...) > > I'm preparing for tonights EAA chapter meeting, so don't have time > to look it up. (As if I ever do.) > > -- Ross > > Douglas Dorfmeier wrote: > > > > parley t. byington wrote: > > > > > > Tom > > > > > > I have a turbo charged 1835 VW. I installed a Aymar- Demuth 52X48 on > > > my bird. I get 750 ft/min at 1000 lbs wt. I used a climb speed of > > > 100 IAS for this figure. OAT was 50 deg. and preasure alt. was about > > > 4000'. > > > > > > My top speed is 170 mph straight and level but I don't remember the rpm > > > and manifold preasure exactly for this number. I plan on flying again > > > 1/1/98 if your interested I will let you know the exact numbers. > > > > > > Regards > > > Parley (N54PB) > > I am one of the newest krnet members. I am planning on purchasing a > > KR2S kit in about a month. It is obvious from the emails I have read so > > far that their is a lot knowledge in this group that I would like to > > take advantage of. My biggest concern right now is what engine to > > choose. Reliability while maximizing cruise speeds is my primary > > objective. I am also contemplating installing a constant speed prop. I > > would greatly appreciate input from any of the Krnet members. Ross, Thanks for the information. I have previously contacted Stratus and their aircraft ready Subaru EA81 is currently selling for $6500. I would be interested in contacting the member in Japan. ------------------------------ Date: Sat, 03 Jan 1998 22:22:10 -0500 From: Tom Andersen Subject: Re: KR: props Ross wrote: > > Doug, > I am going to fly behind a Great Plains 1835cc VW conversion and > a fixed pitch prop. I'm not yet flying, but that's what I choose. > Ross, What performance do you expect from this combo, and what prop size do you plan to use? I'll be using a 1835cc VW also with a 50 x 45. With no electrical system and lightweight building I expect empty weight of 500 lbs or less. This should give about 700fpm climb, 140mph cruise, 160mph top speed. How does this sound? - -Tom ------------------------------ Date: Sat, 3 Jan 1998 23:08:24 EST From: XZOSTD1 Subject: KR: Re: Should I Glass My Fuselage???? and Green Bay Packers Rule!!!! Should I Glass My Fuselage??? Any thoughts and info would be appreciated. Building KR-2S tail gear with Diehl gear and turbo Subaru?? Bill Huntley Green Bay, WI. ------------------------------ Date: Sat, 3 Jan 1998 22:26:42 -0600 (CST) From: Steven A Eberhart Subject: KR: NLF wind tunnel delay Received the following email from Dr. Selig. It speaks for its self. Right now I need to blow some more wind into my sail - most of it has gone out. I will be talking to Dr. Selig Monday and hope to get a meeting to meet and talk to him next week about the tests and new airfoil design. Hope to get a new time line and see if some of the other projects could be moved up, i.e. the KR stability analysis and sizing the NLF(1)0115 wing to the KR-2S (based upon the theoretical data for now). Will update everyone after I get back from U of I. With the delay in getting into the wind tunnel I am giving any of you that have contributed to the NLF wind tunnel testing project a chance to reconsider. I have not cashed any of the checks and don't plan to until we have to pay for the wind tunnel time. If anyone would like a refund let me know. In the long run this may actually be in our favor, will let you know what I find out next week. Steve Eberhart - ---------- Forwarded message ---------- Date: Fri, 2 Jan 1998 17:28:35 -0600 From: Michael S. Selig To: Steven A Eberhart Cc: wjasinsk@uiuc.edu, gopalara@uiuc.edu Subject: going to be delayed Hi Steve, Neither Ashok nor I have had time to digest the email below, but there is some info that you need to know. We are going to be delayed in doing your tests. I have a student in the tunnel now taking data for his thesis, and he has been slowed up by a pretty ambitious test plan, along with all the details that go with a new setup. To keep that test afloat (motorsports related) and our commitment to Ford (who we are doing the tests for), I had to move your slot to April 15 and give up a week on another project. As you probably know, I share the tunnel with Prof Bragg, and he has more demands on the tunnel than I. In particular, he has students that need to take data for their theses too... So I am not sure what that does to your schedules and those others that might be affected, but I am sorry and there is really nothing else that could be done given the responsibilities to the Ford project. Sorry to bring you bad news at the start of a new year (this news came to me on Wed). Nevertheless... Happy New Year, Michael ********************************************** Prof. Michael S. Selig Dept. of Aero/Astro Engineering University of Illinois at Urbana-Champaign 306 Talbot Laboratory 104 South Wright Street Urbana, IL 61801-2935 (217) 244-5757 (o), (217) 244-0720 (fax) mailto:m-selig@uiuc.edu http://www.uiuc.edu/ph/www/m-selig ftp://opus.aae.uiuc.edu/pub ********************************************** ------------------------------ Date: Sat, 03 Jan 1998 22:53:51 -0600 From: brian whatcott Subject: Re: KR: NLF wind tunnel delay As I recall it - homebuilders are made of the gritty stuff that just won't give up at the first setback - or the second - or the third. This might even give me enough chance to convert all the pennies I have been saving into a few greenbacks for the project... Regards Brian Whatcott Altus OK At 22:26 1/3/98 -0600, you wrote: >Received the following email from Dr. Selig. It speaks for itself. >Right now I need to blow some more wind into my sail - most of it has >gone out. > ... >Steve Eberhart > >---------- Forwarded message ---------- >Date: Fri, 2 Jan 1998 17:28:35 -0600 >From: Michael S. Selig >To: Steven A Eberhart >Cc: wjasinsk@uiuc.edu, gopalara@uiuc.edu >Subject: going to be delayed > >Hi Steve, > >... I had to move your slot to April >15 and give up a week on another project. ... > Prof. Michael S. Selig brian whatcott Altus OK ------------------------------ Date: Sun, 4 Jan 1998 00:13:39 -0600 From: "Terry Chizek" Subject: KR: Re: Information wanted Brian this is Terry Chizek at marion ks. got a kr2 with a 2100cc revmaster vw. Cruise seed 135 mph at 2850 rpm. allso got a cessna 150 tail dragger.Started on a kr2s last month got the spars and fuselage sides done . planing on going about 40 " wide and putting a 0235 lycoming. in it.planing to go to one of the eaa breakfast at poncacity ok . I let you know wine im going if you like to meet me ther. - ---------- > From: Brian Bland > To: krnet-l@teleport.com > Subject: KR: Information wanted > Date: Saturday, January 03, 1998 7:35 PM > > Hello everyone! > > I am trying to get the info on the KRNet subscribers. If you could > please e-mail me privately with your: > > Name > Where you live > What you are building or hoping to build > > > I am going to put together info so that people can find out who's > e-mail address goes with what name and where you're located..... > > Thanks, > > Brian J. Bland, PP, A&P > Claremore, OK > Building stretched and widened KR-2S > > KR-2SBuilder@bigfoot.com > http://www.KR-2S.home.ml.org ------------------------------ Date: Sat, 03 Jan 1998 22:16:26 -0800 From: David Moore Subject: Re: KR: NLF wind tunnel delay Steve, I have read the e-mail sent to you by Dr. Selig and although it is disappointing, he didn't say no, he only said the project is going to be delayed. I for one can now jump in here and contribute. So if you will please post your address again I'll put a check in the mail. Lets don't give up because of a little delay. Dave Moore At 10:26 PM 1/3/98 -0600, you wrote: >Received the following email from Dr. Selig. It speaks for its self. >Right now I need to blow some more wind into my sail - most of it has >gone out. > >I will be talking to Dr. Selig Monday and hope to get a meeting to meet >and talk to him next week about the tests and new airfoil design. Hope to >get a new time line and see if some of the other projects could be moved >up, i.e. the KR stability analysis and sizing the NLF(1)0115 wing to the >KR-2S (based upon the theoretical data for now). Will update everyone >after I get back from U of I. > >With the delay in getting into the wind tunnel I am giving any of you >that have contributed to the NLF wind tunnel testing project a chance to >reconsider. I have not cashed any of the checks and don't plan to until >we have to pay for the wind tunnel time. If anyone would like a refund >let me know. In the long run this may actually be in our favor, will let >you know what I find out next week. > >Steve Eberhart > >---------- Forwarded message ---------- >Date: Fri, 2 Jan 1998 17:28:35 -0600 >From: Michael S. Selig >To: Steven A Eberhart >Cc: wjasinsk@uiuc.edu, gopalara@uiuc.edu >Subject: going to be delayed > >Hi Steve, > >Neither Ashok nor I have had time to digest the email below, but there >is some info that you need to know. > >We are going to be delayed in doing your tests. I have a student in the >tunnel now taking data for his thesis, and he has been slowed up by a >pretty ambitious test plan, along with all the details that go with a new >setup. To keep that test afloat (motorsports related) and our commitment >to Ford (who we are doing the tests for), I had to move your slot to April >15 and give up a week on another project. As you probably know, I share >the tunnel with Prof Bragg, and he has more demands on the tunnel than I. >In particular, he has students that need to take data for their theses >too... > >So I am not sure what that does to your schedules and those others that >might be affected, but I am sorry and there is really nothing else that >could be done given the responsibilities to the Ford project. > >Sorry to bring you bad news at the start of a new year (this news came to >me on Wed). > >Nevertheless... > >Happy New Year, >Michael > >********************************************** > Prof. Michael S. Selig > Dept. of Aero/Astro Engineering > University of Illinois at Urbana-Champaign > 306 Talbot Laboratory > 104 South Wright Street > Urbana, IL 61801-2935 > (217) 244-5757 (o), (217) 244-0720 (fax) > mailto:m-selig@uiuc.edu > http://www.uiuc.edu/ph/www/m-selig > ftp://opus.aae.uiuc.edu/pub >********************************************** > > > > > David Moore Turnkey1@MSComm.Com Hesperia, California ------------------------------ Date: Sat, 3 Jan 1998 22:53:36 -0800 From: "Martin Mulvey" Subject: Re: KR: GLUE AND SPARS Hi There, It is best to bond the laminations with the grain and vertically. It is not advisable to laminate "one on top of the other" for the spar use. Laminating makes a very strong structure. Have fun! Marty - -----Original Message----- From: Brian Bland To: krnet-l@teleport.com Date: 03 January, 1998 10:11 Subject: Re: KR: GLUE AND SPARS On Sat, 3 Jan 1998 10:55:31 -0600, you wrote: >I'm about to order the wood and glue to build my spars. Since I bought the fuselage already built, I have no experience with the glue. I'm considering T-88, mainly because it's winter and the temperature is unpredictable in these parts. (one day it's 30 the next it's 70) > >Also the one or two of the pieces need to make the spars are larger than the lumber listed in both Aircraft Spruce and Wicks catalogs. I was wondering if it would be O.K. to glue two pieces together to make the correct size. If this is allowed, is it recommended to stack the boards on top of each other or side by side. > >Randy Stout - San Antonio TX >r5t0ut@flash.net Randy, I would recommend that you use the T-88. It is a great epoxy. As for the spars....Yes it is OK to laminate the spars. I think it would be nearly impossible to get them one piece. From what I know it should not matter if it is side by side or on top of each other. Just glue the pieces together so that the grain is running the same way and if possible it is recommended that the grain be vertical to put minimal shearing stress on the glue lines with the ply as the wood comes and goes with changes in moisture. Check out Mark Langford's http://fly.hiwaay.net/~langford/ or Mike Mims http://home.pacbell.net/mikemims/ web site's if you can to see the spar construction........ Brian J. Bland, PP, A&P Claremore, OK Building stretched and widened KR-2S KR-2SBuilder@bigfoot.com http://www.KR-2S.home.ml.org ------------------------------ Date: Sat, 3 Jan 1998 22:54:58 -0800 From: "Martin Mulvey" Subject: KR: Re: Plywood Hi Again, Go with Aircraft Grade plywood which is 5 ply and bends beautifully and is strong!! BRGDS Marty - -----Original Message----- From: Brian Bland To: krnet-l@teleport.com Date: 03 January, 1998 15:01 Subject: KR: Plywood Hello everyone! I just had a quick question. How flexible is the 3/32" Mahogany or Birch ply? I have found an excellent source of plywood. They have it with 3 equal plys which is flexible and with a thicker inner ply which is not as flexible. The flexible wood only comes in 3'x6' sheets. I can get the other in 4'x8' sheets. I would prefer to get the 4'x8' sheets. Also does it matter which way the grain runs on the fuselage? I know the plans say it does on the spars, but I didn't see anything about the fuse. Any comments? Thanks, Brian J. Bland, PP, A&P Claremore, OK Building stretched and widened KR-2S KR-2SBuilder@bigfoot.com http://www.KR-2S.home.ml.org ------------------------------ Date: Sat, 3 Jan 1998 22:58:24 -0800 From: "Martin Mulvey" Subject: Re: KR: GLUE AND SPARS Forgot on my initial reply.(Sorry) T-88 is outstanding for structural use and will be reliable down to 30Deg F. It will cure slower at the lower temperatures but no degradation to the bond. BRGDS Marty - -----Original Message----- From: Donald Reid To: krnet-l@teleport.com Date: 03 January, 1998 14:17 Subject: Re: KR: GLUE AND SPARS >Randy Stout wrote: >> >> I'm about to order the wood and glue to build my spars. I'm >> considering T-88, mainly because it's winter > >I used the T88 and have been very pleased with it. The glue dispenser >that you can get is very handy for small jobs. If you use it, the >mixing tubes can be saved and reused if you blow them out with >compressed air, run a little acetone or MEK through it, put it in a >plastic bag in the freezer. > >> Also the one or two of the pieces need to make the spars are larger >> than the lumber listed in both Aircraft Spruce and Wicks catalogs. > >EAA has a good book on wood construction techniques. You can get it >either through the EAA or one of the suppliers like AS&S or Wicks. > >-- >Don Reid >mailto:donreid@erols.com >http://www.erols.com/donreid/kr_page.htm ------------------------------ Date: Sat, 3 Jan 1998 23:18:41 -0800 From: "Martin Mulvey" Subject: KR: Re: Re: Should I Glass My Fuselage???? and Green Bay Packers Rule!!!! No need. The structure is fine and any more added to it would be unproductive weight. Finishing the wood is easy and you are only looking for trouble by adding glass. BRGDS Marty - -----Original Message----- From: XZOSTD1 To: krnet-l@teleport.com Date: 03 January, 1998 20:17 Subject: KR: Re: Should I Glass My Fuselage???? and Green Bay Packers Rule!!!! >Should I Glass My Fuselage??? > >Any thoughts and info would be appreciated. >Building KR-2S tail gear with Diehl gear and turbo Subaru?? >Bill Huntley >Green Bay, WI. ------------------------------ Date: Sun, 04 Jan 1998 01:02:09 -0800 From: Ross Subject: KR: N541RY Progress Update Well Finally! I got myself into the garage and started working on my to-do list. I fabricated two new brackets to capture the instrument panel and the removable forward deck. I think I may make another set, as these were "prototype" brackets and don't look to hot, but the goal was to validate and fix the location of the instrument panel so I can mark and cut-out for my avionics. (Xponder & Com). This was done, and I have made the rough cut-out in the panel tonight for the Com & Xponder, tomorrow, I need to make more brackets to attach the rack to the panel, then I can consider finishing my panel. At tonights EAA chapter meeting one of our members gave us a tour of his new Starduster II biplane. Nice plane! Inspiration to get myself out into the garage and do some work. I'm still considering canopy latch ideas so if anyone has some pictures post the links so we can look at them. I've looked at Don Reid's and may go with somthing like he has but am not sold yet. My next obsticle[sp?] is the final fuel system routing. I have originally installed two Facet fuel pumps under the sling seat which feed filtered fuel from each wing tank up to a fuel selector in the center of the panel. This was then going to feed the header tank and/ or the engine. I'm not 100% happy with the plans solution as I am using an Ellison and need 2-3psi or so at the carb, which means that gravity feed may not work. I would be interested in links/photos of fuel schematics specificly for the Ellison TBI which is recommended to have pressurized fuel. I am planning on doing a gravity feed test of the header tank, in my case it only holds 5 gallons of reserve fuel, and the idea was to use it as a reserve tank. I'm looking to follow the KISS principle for my fuel system, as fuel problems are a significant contributor to accident statistics. Ideas? -- Regards Ross ------------------------------ End of krnet-l-digest V2 #2 ***************************