From: "KR-net users group digest" To: "kr-net digest recipients" Subject: kr-net digest: January 30, 2000 Date: Monday, January 31, 2000 1:18 AM KR-NET Digest2 for Sunday, January 30, 2000. 1. RE: cutting glass cloth 2. Re: cutting glass cloth 3. Re: Cracked VW Case 4. RE: cutting glass cloth 5. KRNet posting delays? 6. Re: Gascolator Cooling 7. Re: cutting glass cloth 8. Re: KRNet posting delays? 9. Re: Oil Pressure Sending sensors 10. Re: KRNet posting delays? 11. Composite Cracking? 12. Corvair CFM 13. Re: KRNet posting delays? 14. Re: Corvair CFM 15. Re: Composite Cracking? 16. Re: Composite Cracking? 17. Re: Gascolator Cooling 18. Re: Composite Cracking? 19. Re: Composite Cracking? 20. Re: Composite Cracking? 21. Re: kr-1 bluefoam(polystyrene) wing 22. Re: kr-1 bluefoam(polystyrene) wing 23. Re: Composite Cracking? 24. Re: kr-1 bluefoam(polystyrene) wing 25. Re: kr-1 bluefoam(polystyrene) wing 26. wing spars 27. Re: kr-1 bluefoam(polystyrene) wing 28. Re: kr-1 bluefoam(polystyrene) wing 29. Re: Corvair Location 30. Re: aft spar dihedral 31. Re: kr-1 bluefoam(polystyrene) wing 32. Re: kr-1 bluefoam(polystyrene) wing 33. Re: cutting glass cloth 34. Re: KRNet posting delays? 35. Progress? 36. Re: wing spars 37. Re: kr-1 bluefoam(polystyrene) wing ---------------------------------------------------------------------- Subject: RE: cutting glass cloth From: "Larry A. Capps" Date: Sun, 30 Jan 2000 04:31:51 -0600 X-Message-Number: 1 DO NOT SPRAY your fiberglass with ANY foreign matter, you could die. This is just a warning your mileage may vary Larry -----Original Message----- From: bounce-kr-net-121858@telelists.com [mailto:bounce-kr-net-121858@telelists.com]On Behalf Of w.g. kirkland Sent: Friday, January 28, 2000 12:26 PM To: KR-net users group Subject: [kr-net] cutting glass cloth When I was cutting the glass cloth I found the edge would unravel and I would have 3 or 4 strings of glass clinging to my shirt, the scissors, the table and anything else close. The problem has become much worse since winter set in because the air is very dry and the static electricity builds up real quick. The solution is to spray the cloth, the table, yourself and the mold with some of your wife's static guard or equivalent. It greatly reduces the problem. Now to pacify my wife 0:) kirkland@vianet.on.ca --- You are currently subscribed to kr-net as: capps@mediaone.net To unsubscribe send a blank email to leave-kr-net-121858V@telelists.com ---------------------------------------------------------------------- Subject: Re: cutting glass cloth From: "Larry A. Capps" Date: Sun, 30 Jan 2000 07:12:17 -0600 X-Message-Number: 2 Stippling is the method by which you use your brush loaded with pure epoxy to work down leading edges and the like. The effect your looking for, is the ends of the brush do the work for you as you apply an (fast ) up and down motion. Larry -----Original Message----- From: bounce-kr-net-121858@telelists.com [mailto:bounce-kr-net-121858@telelists.com]On Behalf Of Lon V Boothby Sent: Sunday, January 30, 2000 2:16 AM To: KR-net users group Subject: [kr-net] Re: cutting glass cloth sorry for the ignorance here, but I really would like to learn, what so you mean by stipple down? Thanks ________________________________________________________________ YOU'RE PAYING TOO MUCH FOR THE INTERNET! Juno now offers FREE Internet Access! Try it today - there's no risk! For your FREE software, visit: http://dl.www.juno.com/get/tagj. --- You are currently subscribed to kr-net as: capps@mediaone.net To unsubscribe send a blank email to leave-kr-net-121858V@telelists.com ---------------------------------------------------------------------- Subject: Re: Cracked VW Case From: "Mark Langford" Date: Sun, 30 Jan 2000 07:45:33 -0600 X-Message-Number: 3 Chris Dunn wrote: > Anyway have > any of you tried Autocrafts engine case? It is an aftermarket case that has > been designed for the bigger cylinders and longer strokes. It is a lot > stronger than any vw case around. Chris, I looked into all of the aftermarket cases when I started this project, and found that they are made bulletproof by extra material, and made of aluminum. They are 30 -50 pounds heavier than a stock magnesium alloy Type 1 case, which is way too stiff a penalty to pay for 600 pound airplane, especially if you haven't raised the power any by increasing bore and stroke (although you COULD with one of these cases, for a mere $3000-$5000). That's one reason I almost went with the Type 4 engine, but even they have crankshaft problems due to the prop being mounted to the "pulley" end of the crank shaft. The answer for me was the Corvair. No known crank failures (400 flyling), 6 smooth cylinders, and a potential 140 HP at 3800 RPM. And you get all this for that same 30-50 pound penalty, but now you have TWICE the power of a VW! And did I mention the the going rate is $100 per engine? And the "conversion" is cutting out a few pieces of aluminum with a bandsaw, drilling a few holes, and bolting them on! More details are available at http://home.hiwaay.net/~langford/corvair.html . Yes, brother, I have SEEN THE LIGHT... Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ---------------------------------------------------------------------- Subject: RE: cutting glass cloth From: "Mark Langford" Date: Sun, 30 Jan 2000 07:53:09 -0600 X-Message-Number: 4 Most all of the fiberglass that I've used on my KR was cut "on the bias", or at a 45 degree angle to the way it's rolled up on the cloth. One benefit of this method is that you don't have the strings hanging off parallel to the piece, they meet at a 45 degree angle and tend to hold each other in place. And for most of our purposes, the stuff should be cut on the bias for maximum torsional rigidity in places like wings, stabilizers, and control surfaces, especially. And yes, it's 5.85 ounce cloth that's recommended for KRs... Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ---------------------------------------------------------------------- Subject: KRNet posting delays? From: "Mark Langford" Date: Sun, 30 Jan 2000 08:02:11 -0600 X-Message-Number: 5 Is there anything we can do about the huge delays we've been experiencing with our KRNet posts lately? I've posted messages that didn't appear until five hours later. I know the delay is on the server end, since the messages are time stamped as originating from KRNet at that time. This delay results in five people answering the same message (thinking "If nobody else is gonna do it, I will"), like the dihedral question yesterday. It's no coincidence that Mark Jones, me, Don Reid, and Mike MIms all responded to this. It's not that none of us thought the answers were not good enough, it's that we thought the question hadn't been answered at all. This problem has been going on for a while. Most other lists that I've been on you'll see your message posted in a matter of seconds, or minutes at the very least. Maybe we need to "rattle their cage" on this, or find a mail service that's not quite so busy... Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ---------------------------------------------------------------------- Subject: Re: Gascolator Cooling From: "Timothy Bellville" Date: Sun, 30 Jan 2000 09:12:40 -0500 X-Message-Number: 6 Mike , I agree that it is a good idea to cool the gascolator. and along those lines let me throw this out there for everyone to chew on. On my soneri one,I have encountered many problems with just about everything forward of the firewall.One major problem is that I have had nothing to go by ,but other peoples experience. The parts that made a VW conversion possible for the Sonerai are nolonger available. So ,I have spent the last Five years,reengineering everything for this design. Most recently, after doing an initial weight and balance, found that it was nessary to ad aprox. 11lbs. to the nose . So I opted to install a starter and a larger battery. This solved my weight problem, but caused a new one with the fuel system. (No room for it). I know you KR guys might be thinking I'm nuts right now,but a Sonerai cowl is about a tight as they come(for an opposed engine). So with all that , this is what I did to solve this dilemma. I modified the cylinder intake manifold to accommodate a single motorcycle carb,for each side of the engine,and just to the rear of the cyclenders,and just low enough to render about one gal. of fuel unusable in the fuel tank. As you can probly see , one of the problems here is long fuel lines to two carbs.Now with all that said her are my quistians. 1. Are there any fuel pumps avalible that have ajustable pressure? 2.With radent heat coming from the cyclender head and the carbs drawing air from the engine compartment, is carb heat nessary? 3. With no mixture control available, what do you think I should tell the feds is my service celing? Thanks Tim -----Original Message----- From: Mike Mims To: KR-net users group Date: Saturday, January 29, 2000 10:54 PM Subject: [kr-net] Re: Gascolator Cooling >Laheze@aol.com wrote: >> >> This one will be insulated and air blown before it flies I can assure you of that ! >> > > >Good idea! Why bother to install it if it is installed incorrectly? >Seems that all the certified airplanes have them isolated and cooled by >cooling air. When in doubt just go look and see how Piper and Cessna did >it. > >-- >zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz >Micheal Mims >Sanding and Filling AGAIN! :o( >http://www.fortunecity.com/marina/anchor/270/ >mirror @ >http://www.geocities.com/CapeCanaveral/Hangar/4136/ >http://members.home.com/mikemims/ >Aliso Viejo CA >^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > >--- >You are currently subscribed to kr-net as: tbellville@mindspring.com >To unsubscribe send a blank email to leave-kr-net-108034W@telelists.com ---------------------------------------------------------------------- Subject: Re: cutting glass cloth From: Lon V Boothby Date: Sun, 30 Jan 2000 06:19:51 -0800 X-Message-Number: 7 Thank you! ________________________________________________________________ YOU'RE PAYING TOO MUCH FOR THE INTERNET! Juno now offers FREE Internet Access! Try it today - there's no risk! For your FREE software, visit: http://dl.www.juno.com/get/tagj. ---------------------------------------------------------------------- Subject: Re: KRNet posting delays? From: RFG842@aol.com Date: Sun, 30 Jan 2000 10:12:39 EST X-Message-Number: 8 I've been wondering about the net. Some days I get no posts and in the last few days, I've gotten identical, duplicate messages. Thought it was a virus on my computer but now, it may not be. Bob ---------------------------------------------------------------------- Subject: Re: Oil Pressure Sending sensors From: jscott.pilot@juno.com Date: Sun, 30 Jan 2000 07:40:42 -0700 X-Message-Number: 9 On Sun, 30 Jan 2000 00:44:21 EST Laheze@aol.com writes: > Maybe you could use a T fitting to get two from one. Just be carefull of > vibration and > breakage, I know you would hate to pump all of your oil out. > I know a few years ago that we received a notice ( AD ) on the Mooney > Aircraft to > replace some fittings in the front of the engine case from aluminum to > stainless > steel. Vibration was causing some of the aluminum fittings to break and then > pumping the engines brown blood overboard and then you know the rest of the > story. > I have some aluminum fittings in the Revmaster Engine that I have now and will > probably replace them before flight. > > Larry laheze@aol.com > The solution to thhis problem is to install a fitting with a very fine orifice directly in the oil pressure sending unit hole and all the pressure indicators and switches after the oriface. I use a primer nozzle for this. This is why when you fire up your trusty old C-150 on a cold winter day, you often don't see oil pressure for the first 45 seconds. The engine has oil pressure, but it takes a while to push enough heavy thick oil through that fine port to accurately indicate it. Once the engine has warmed up and the oil is no longer like tar, the oil pressure indication no longer has a significant lag. The safety part of this is that should you have a failure of the line going to the gauge, or in your case the "T" fitting and other stuff hanging off the the fitting, you won't immediately pump all of your oil overboard. It will take enough time that you can find a place to park the plane without running the engine out of oil. Jeff Scott - Los Alamos, NM mailto:jscott.pilot@juno.com See N1213w construction and first flight at http://www.thuntek.net/~jeb/krjeff.htm ---------------------------------------------------------------------- Subject: Re: KRNet posting delays? From: jscott.pilot@juno.com Date: Sun, 30 Jan 2000 09:04:22 -0700 X-Message-Number: 10 On Sun, 30 Jan 2000 10:12:39 EST RFG842@aol.com writes: > I've been wondering about the net. Some days I get no posts and in the last > few days, I've gotten identical, duplicate messages. Thought it was a virus > on my computer but now, it may not be. > > Bob > There's not much we can do about that short of moving elsewhere and I don't think that is a good answer at this time. This is up Ross's Alley, so maybe he can talk to Teleport and we can get some comment from Ross. The problem does appear to be intermittent and could very well be a problem with the gateway or router that teleport is behind as well as the teleport server. No doubt they are trying to address the problem as they don't like to provide poor services. Often times router and gateway problems are beyond their immediate control. Jeff Scott - Los Alamos, NM mailto:jscott.pilot@juno.com See N1213w construction and first flight at http://www.thuntek.net/~jeb/krjeff.htm ---------------------------------------------------------------------- Subject: Composite Cracking? From: "Florin L Pintea" Date: Sun, 30 Jan 2000 09:12:22 -0800 X-Message-Number: 11 This is a multi-part message in MIME format. ------=_NextPart_000_0010_01BF6B02.1DEDE5E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I was talking airplanes to a fellow flyer yesterday at my FBO and = composite built planes subject came up. He was convinced that composite = planes don't survive too long here in Canada because the extreme weather = conditions we have: very high sudden temperature changes from a nice 70 = deg F in the hangar to minus 30 deg F outside. He claims that composites = are best in more moderate temperatures and as soon as you subject them = to these "SHOCKS" they will start to show signs of checking and cracking = and fairly soon to end up with a deteriorated or damaged aircraft. I would be inclined to disagree with that since even if one lives in = Arizona, once you gained enough altitude you will encounter fairly low = temps regardless of where you are. Granted, the temp change is more = gradual with altitude changes in Arizona, you still subject it to quite = a critical temp change. Does anyone know if this could be true? Has anyone experienced or seen something like that? A lot of people's day would be ruined (including mine)if they were to = find out their plane is cracking everywhere. =20 Florin=20 =20 ------=_NextPart_000_0010_01BF6B02.1DEDE5E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I was talking airplanes to a fellow = flyer yesterday=20 at my FBO and composite built planes subject came up.=20 He was convinced that composite planes don't survive too = long=20 here in Canada because the extreme weather conditions we have: very = high=20 sudden temperature changes from a nice 70 deg F in the hangar to = minus 30=20 deg F outside. He claims that composites are best in more moderate=20 temperatures and as soon as you subject them to these "SHOCKS" they will = start=20 to show signs of checking and cracking and fairly soon to end up = with a=20 deteriorated or damaged aircraft.
I would be inclined to disagree = with that=20 since even if one lives in Arizona, once you gained enough = altitude=20 you will encounter fairly low temps regardless of where you are. = Granted,=20 the temp change is more gradual with altitude changes in = Arizona, you=20 still subject it to quite a critical temp change.
Does anyone know if this could be=20 true?
Has anyone experienced or seen = something like=20 that?
A lot of people's day would be ruined = (including=20 mine)if they were to find = out their plane is=20 cracking everywhere.  
 
Florin 
 
------=_NextPart_000_0010_01BF6B02.1DEDE5E0-- ---------------------------------------------------------------------- Subject: Corvair CFM From: "Florin L Pintea" Date: Sun, 30 Jan 2000 09:13:54 -0800 X-Message-Number: 12 This is a multi-part message in MIME format. ------=_NextPart_000_0019_01BF6B02.54994260 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Does anyone know what is the required CFM for the Corvair's breathing? Florin ------=_NextPart_000_0019_01BF6B02.54994260 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Does anyone know what is the required = CFM for the=20 Corvair's breathing?
 
Florin
------=_NextPart_000_0019_01BF6B02.54994260-- ---------------------------------------------------------------------- Subject: Re: KRNet posting delays? From: "Cary Honeywell" Date: Sun, 30 Jan 2000 11:18:49 -0500 X-Message-Number: 13 The Internet had a bit of a glitch which started about 10 - 12 days ago. Several routers had some routing problems which caused segments of the Internet in North America to become isolated. In other words, several of your domains including the @home and "wave" domains had a note saying "You can't get there from here." stapled on the front end. the AT&T network was hit more severely than others. The ISP's know about the problem and are patching it up as we write this. Nevertheless, expect these posting delays to be commin for another month. Nutt'in you can do about it. - Cary - -Cary Honeywell - Ottawa Ontario Canada caryh@home.com ve3ev@rac.ca Home page http://24.112.208.98/ KR2 area http://24.112.208.98/kr2/kr2.shtml -----Original Message----- From: Mark Langford To: KR-net users group Cc: Ross R. Youngblood Date: Sunday, January 30, 2000 9:17 AM Subject: [kr-net] KRNet posting delays? >Is there anything we can do about the huge delays we've been experiencing >with our KRNet posts lately? I've posted messages that didn't appear until >five hours later. I know the delay is on the server end, since the messages >are time stamped as originating from KRNet at that time. This delay results >in five people answering the same message (thinking "If nobody else is gonna >do it, I will"), like the dihedral question yesterday. It's no coincidence >that Mark Jones, me, Don Reid, and Mike MIms all responded to this. It's not >that none of us thought the answers were not good enough, it's that we >thought the question hadn't been answered at all. > >This problem has been going on for a while. Most other lists that I've been >on you'll see your message posted in a matter of seconds, or minutes at the >very least. Maybe we need to "rattle their cage" on this, or find a mail >service that's not quite so busy... > >Mark Langford, Huntsville, Alabama >mailto:langford@hiwaay.net >see KR2S project N56ML at http://home.hiwaay.net/~langford > > > >--- >You are currently subscribed to kr-net as: caryh@home.com >To unsubscribe send a blank email to leave-kr-net-62695J@telelists.com ---------------------------------------------------------------------- Subject: Re: Corvair CFM From: "Mark Langford" Date: Sun, 30 Jan 2000 10:38:20 -0600 X-Message-Number: 14 This is a multi-part message in MIME format. ------=_NextPart_000_0068_01BF6B0E.20526C50 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Florin wrote: >Does anyone know what is the required CFM for the Corvair's breathing? For a "street" carburetor, cfm=3D(rpm x displacement)/3456 (.85). For = the 110 HP Corvair running at 3400 RPM with 164 cubic inches, that would = be 137 CFM. For my 140HP 190 ci engine running at 3800 RPM, that would = be 177 CFM. Having said that, a carb from an 0-200 or 0-235 should work = just fine... Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ------=_NextPart_000_0068_01BF6B0E.20526C50 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Florin = wrote:
 
>Does = anyone know what=20 is the required CFM for the Corvair's breathing?
 
For a "street" carburetor, cfm=3D(rpm x = displacement)/3456  (.85).  For the 110 HP Corvair running at = 3400 RPM=20 with 164 cubic inches, that would be 137 CFM.  For my 140HP 190 ci = engine=20 running at 3800 RPM, that would be 177 CFM.  Having said that, a = carb from=20 an 0-200 or 0-235 should work just fine...

Mark Langford,   Huntsville, Alabama
mailto:langford@hiwaay.net
see= KR2S=20 project N56ML at http://home.hiwaay.net/~langfor= d
 
 
------=_NextPart_000_0068_01BF6B0E.20526C50-- ---------------------------------------------------------------------- Subject: Re: Composite Cracking? From: Laheze@aol.com Date: Sun, 30 Jan 2000 12:39:50 EST X-Message-Number: 15 I have never heard of any composite problems related to cold, but the good news is that you won't have to worry about epoxy softening problems from too high temperatures ! ! Larry Howell laheze@aol.com ---------------------------------------------------------------------- Subject: Re: Composite Cracking? From: Donald Reid Date: Sun, 30 Jan 2000 13:28:40 -0500 X-Message-Number: 16 --=====================_1478182==_.ALT Content-Type: text/plain; charset="us-ascii"; format=flowed At 09:12 AM 01/30/2000 -0800, you wrote: >I was talking airplanes to a fellow flyer yesterday at my FBO and >composite built planes subject came up. He was convinced that composite >planes don't survive too long here in Canada because the extreme weather >conditions we have: very high sudden temperature changes from a nice 70 >deg F in the hangar to minus 30 deg F outside. He claims that composites >are best in more moderate temperatures and as soon as you subject them to >these "SHOCKS" they will start to show signs of checking and cracking and >fairly soon to end up with a deteriorated or damaged aircraft. Please go to my web site and look for the Sport Aviation articles. Fred Keller was one of the first KR builders, and he was from Alaska. He did experience the thermal shocking that you describe. He wrote an article that I have copied on my site. Don Reid Bumpass, Va. mailto:donreid@erols.com KR2XL at http://www.erols.com/donreid/kr_page.htm Ultralights at http://www.erols.com/donreid/usua250.html --=====================_1478182==_.ALT Content-Type: text/html; charset="us-ascii" At 09:12 AM 01/30/2000 -0800, you wrote:
I was talking airplanes to a fellow flyer yesterday at my FBO and composite built planes subject came up. He was convinced that composite planes don't survive too long here in Canada because the extreme weather conditions we have: very high sudden temperature changes from a nice 70 deg F in the hangar to minus 30 deg F outside. He claims that composites are best in more moderate temperatures and as soon as you subject them to these "SHOCKS" they will start to show signs of checking and cracking and fairly soon to end up with a deteriorated or damaged aircraft.


Please go to my web site and look for the Sport Aviation articles.  Fred Keller was one of the first KR builders, and he was from Alaska.  He did experience the thermal shocking that you describe.  He wrote an article that I have copied on my site. 
Don Reid
Bumpass, Va.   mailto:donreid@erols.com
  Ultralights at http://www.erols.com/donreid/usua250.html --=====================_1478182==_.ALT-- ---------------------------------------------------------------------- Subject: Re: Gascolator Cooling From: "R.W. Moore" Date: Sun, 30 Jan 2000 14:07:40 -0500 X-Message-Number: 17 I do not know of any carbs that has a fuel pressure control, however you can buy a adjustable fuel perssure control that you could install in the line before the carb. R. W. Moore Inventor ---------- > From: Timothy Bellville > To: KR-net users group > Subject: [kr-net] Re: Gascolator Cooling > Date: Sunday, January 30, 2000 9:12 AM > > Mike , I agree that it is a good idea to cool the gascolator. and along > those lines let me throw this out there for everyone to chew on. > On my soneri one,I have encountered many problems with just about everything > forward of the firewall.One major problem is that I have had nothing to go > by ,but other peoples experience. The parts that made a VW conversion > possible for the Sonerai are nolonger available. So ,I have spent the last > Five years,reengineering everything for this design. Most recently, after > doing an initial weight and balance, found that it was nessary to ad aprox. > 11lbs. to the nose . So I opted to install a starter and a larger battery. > This solved my weight problem, but caused a new one with the fuel system. > (No room for it). I know you KR guys might be thinking I'm nuts right > now,but a Sonerai cowl is about a tight as they come(for an opposed engine). > So with all that , this is what I did to solve this dilemma. I modified the > cylinder intake manifold to accommodate a single motorcycle carb,for each > side of the engine,and just to the rear of the cyclenders,and just low > enough to render about one gal. of fuel unusable in the fuel tank. > As you can probly see , one of the problems here is long fuel lines to two > carbs.Now with all that said her are my quistians. > 1. Are there any fuel pumps avalible that have ajustable pressure? > 2.With radent heat coming from the cyclender head and the carbs drawing air > from the engine compartment, is carb heat nessary? > 3. With no mixture control available, what do you think I should tell the > feds is my service celing? > Thanks > Tim > > -----Original Message----- > From: Mike Mims > To: KR-net users group > Date: Saturday, January 29, 2000 10:54 PM > Subject: [kr-net] Re: Gascolator Cooling > > > >Laheze@aol.com wrote: > >> > >> This one will be insulated and air blown before it flies I can assure you > of that ! > >> > > > > > >Good idea! Why bother to install it if it is installed incorrectly? > >Seems that all the certified airplanes have them isolated and cooled by > >cooling air. When in doubt just go look and see how Piper and Cessna did > >it. > > > >-- > >zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz > >Micheal Mims > >Sanding and Filling AGAIN! :o( > >http://www.fortunecity.com/marina/anchor/270/ > >mirror @ > >http://www.geocities.com/CapeCanaveral/Hangar/4136/ > >http://members.home.com/mikemims/ > >Aliso Viejo CA > >^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > > >--- > >You are currently subscribed to kr-net as: tbellville@mindspring.com > >To unsubscribe send a blank email to leave-kr-net-108034W@telelists.com > > > --- > You are currently subscribed to kr-net as: rwmoore@alltel.net > To unsubscribe send a blank email to leave-kr-net-17710K@telelists.com ---------------------------------------------------------------------- Subject: Re: Composite Cracking? From: "Cleo Greenhaw" Date: Sun, 30 Jan 2000 13:14:33 -0600 X-Message-Number: 18 This is a multi-part message in MIME format. ------=_NextPart_000_0021_01BF6B23.F343D6C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Florin: Check with some sailboat shops or house boat shops, and maybe = with some automotive repair=20 shops, ie for Corvettes. We do not have as cold of winter here = Oklahoma, but I spend a lot of time at the lake, and the only time I = have heard of cracking of the fiberglass is when water stands in the = cockpit of a sailboat without be drained and the water freezes and the = ice cracks the bottom of the cockpit or the sides. I think you are all = right Cleo at cleo@fullnet.net P.S. I use to build sailboats using = fiber glass molds, etc. Sorry if this bugs any of you guys about = posting over the Users net. But it might help some one out there for = sources check about this problem. ----- Original Message -----=20 From: Florin L Pintea=20 To: KR-net users group=20 Sent: Sunday, January 30, 2000 11:12 AM Subject: [kr-net] Composite Cracking? I was talking airplanes to a fellow flyer yesterday at my FBO and = composite built planes subject came up. He was convinced that composite = planes don't survive too long here in Canada because the extreme weather = conditions we have: very high sudden temperature changes from a nice 70 = deg F in the hangar to minus 30 deg F outside. He claims that composites = are best in more moderate temperatures and as soon as you subject them = to these "SHOCKS" they will start to show signs of checking and cracking = and fairly soon to end up with a deteriorated or damaged aircraft. I would be inclined to disagree with that since even if one lives in = Arizona, once you gained enough altitude you will encounter fairly low = temps regardless of where you are. Granted, the temp change is more = gradual with altitude changes in Arizona, you still subject it to quite = a critical temp change. Does anyone know if this could be true? Has anyone experienced or seen something like that? A lot of people's day would be ruined (including mine)if they were to = find out their plane is cracking everywhere. =20 Florin=20 =20 ------=_NextPart_000_0021_01BF6B23.F343D6C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Florin:  Check with some sailboat shops or = house boat=20 shops, and maybe with some automotive repair
shops, ie for Corvettes.  We do not have as = cold of=20 winter here Oklahoma, but I spend a lot of time at the lake, and the = only time I=20 have heard of cracking of the fiberglass is when water stands in the = cockpit of=20 a sailboat without be drained and  the water freezes and the ice = cracks the=20 bottom of the cockpit or the sides.  I think you are all = right  Cleo=20 at cleo@fullnet.net  P.S. I = use to=20 build sailboats using fiber glass molds, etc.  Sorry if this bugs = any of=20 you guys about posting over the Users net.  But it might help some = one out=20 there for sources check about this problem.
 
----- Original Message -----
From:=20 Florin = L Pintea=20
Sent: Sunday, January 30, 2000 = 11:12=20 AM
Subject: [kr-net] Composite=20 Cracking?

I was talking airplanes to a fellow = flyer=20 yesterday at my FBO and composite built planes subject came up.=20 He was convinced that composite planes don't survive = too long=20 here in Canada because the extreme weather conditions we = have: very high=20 sudden temperature changes from a nice 70 deg F in the hangar to = minus 30=20 deg F outside. He claims that composites are best in more = moderate=20 temperatures and as soon as you subject them to these "SHOCKS" they = will start=20 to show signs of checking and cracking and fairly soon to end up = with a=20 deteriorated or damaged aircraft.
I would be inclined to disagree = with that=20 since even if one lives in Arizona, once you gained enough = altitude=20 you will encounter fairly low temps regardless of where you are. = Granted,=20 the temp change is more gradual with altitude changes in = Arizona,=20 you still subject it to quite a critical temp change.
Does anyone know if this could be=20 true?
Has anyone experienced or seen = something like=20 that?
A lot of people's day would be ruined = (including=20 mine)if they were to find = out their plane=20 is cracking everywhere.  
 
Florin 
  =
------=_NextPart_000_0021_01BF6B23.F343D6C0-- ---------------------------------------------------------------------- Subject: Re: Composite Cracking? From: Marcin Kolbuszewski Date: Sun, 30 Jan 2000 21:05:43 +0100 X-Message-Number: 19 --------------3E505CBFE3E0D5D9A77D5C5F Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I took some flying lessoon in Ottawa, Ontario on a DA20 Katana - which is a very nice composite trainer. They were tied outside, with wing and canopy covers when snow was expected. We did not fly when the temperature was below -15C - but this was because of the engines not airframes. Marcin Kolbuszewski Cleo Greenhaw wrote: > Florin: Check with some sailboat shops or house boat shops, and maybe > with some automotive repairshops, ie for Corvettes. We do not have as > cold of winter here Oklahoma, but I spend a lot of time at the lake, > and the only time I have heard of cracking of the fiberglass is when > water stands in the cockpit of a sailboat without be drained and the > water freezes and the ice cracks the bottom of the cockpit or the > sides. I think you are all right Cleo at cleo@fullnet.net P.S. I > use to build sailboats using fiber glass molds, etc. Sorry if this > bugs any of you guys about posting over the Users net. But it might > help some one out there for sources check about this problem. > > ----- Original Message ----- > From: Florin L Pintea > To: KR-net users group > Sent: Sunday, January 30, 2000 11:12 AM > Subject: [kr-net] Composite Cracking? > I was talking airplanes to a fellow flyer yesterday at my > FBO and composite built planes subject came up. He was > convinced that composite planes don't survive too long here > in Canada because the extreme weather conditions we have: > very high sudden temperature changes from a nice 70 deg F in > the hangar to minus 30 deg F outside. He claims that > composites are best in more moderate temperatures and as > soon as you subject them to these "SHOCKS" they will start > to show signs of checking and cracking and fairly soon to > end up with a deteriorated or damaged aircraft.I would be > inclined to disagree with that since even if one lives in > Arizona, once you gained enough altitude you will encounter > fairly low temps regardless of where you are. Granted, the > temp change is more gradual with altitude changes in > Arizona, you still subject it to quite a critical temp > change.Does anyone know if this could be true?Has anyone > experienced or seen something like that?A lot of people's > day would be ruined (including mine)if they were to find out > their plane is cracking everywhere. Florin > --------------3E505CBFE3E0D5D9A77D5C5F Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit I took some flying lessoon in Ottawa, Ontario on a DA20 Katana - which
is a very nice composite trainer. They were tied outside, with wing and canopy covers when snow was expected. We did not fly when the temperature was below -15C - but this was because of the engines not airframes.

Marcin Kolbuszewski

Cleo Greenhaw wrote:

Florin:  Check with some sailboat shops or house boat shops, and maybe with some automotive repairshops, ie for Corvettes.  We do not have as cold of winter here Oklahoma, but I spend a lot of time at the lake, and the only time I have heard of cracking of the fiberglass is when water stands in the cockpit of a sailboat without be drained and  the water freezes and the ice cracks the bottom of the cockpit or the sides.  I think you are all right  Cleo at cleo@fullnet.net  P.S. I use to build sailboats using fiber glass molds, etc.  Sorry if this bugs any of you guys about posting over the Users net.  But it might help some one out there for sources check about this problem. 
----- Original Message -----
Sent: Sunday, January 30, 2000 11:12 AM
Subject: [kr-net] Composite Cracking?
 I was talking airplanes to a fellow flyer yesterday at my FBO and composite built planes subject came up. He was convinced that composite planes don't survive too long here in Canada because the extreme weather conditions we have: very high sudden temperature changes from a nice 70 deg F in the hangar to minus 30 deg F outside. He claims that composites are best in more moderate temperatures and as soon as you subject them to these "SHOCKS" they will start to show signs of checking and cracking and fairly soon to end up with a deteriorated or damaged aircraft.I would be inclined to disagree with that since even if one lives in Arizona, once you gained enough altitude you will encounter fairly low temps regardless of where you are. Granted, the temp change is more gradual with altitude changes in Arizona, you still subject it to quite a critical temp change.Does anyone know if this could be true?Has anyone experienced or seen something like that?A lot of people's day would be ruined (including mine)if they were to find out their plane is cracking everywhere. Florin 
--------------3E505CBFE3E0D5D9A77D5C5F-- ---------------------------------------------------------------------- Subject: Re: Composite Cracking? From: Dave King Date: Sun, 30 Jan 2000 12:15:45 -0800 X-Message-Number: 20 At 09:12 AM 01/30/2000 -0800, you wrote: Does anyone know if this could be true? Has anyone experienced or seen something like that? I'd have to agree with your friend. I'm in western Canada and what he said would jive 100% with what I would have said. Where I live we've got from 115 to -40. Most of the time the weather is fairly comfortable. We didn't have snow untill after the new years (prob someone waiting to see if the snow puter was y2k ;-]) for example. The one thing I've wondered about is if its more the problem with higher uv rates and quick weather changes. Dave ---------------------------------------------------------------------- Subject: Re: kr-1 bluefoam(polystyrene) wing From: "Ken Jordan" Date: Sun, 30 Jan 2000 12:44:37 -0800 X-Message-Number: 21 Don't use the blue polystyrene foam on your KR. It is not fuel proof and you could have trouble with wing tanks or header over- flow. Use the polyurethane foam recommended. It sands better. The Dragonfly does use blue foam, if memory serves me well. It can be hotwire shaped without noxious fumes, unlike the urethane on KRs. Also, I've used Dragonfly cloth instead of the KR cloth at times. It is a few hundredths of an ounce per yard lighter, but is the same weave. Wicks sold a composite beginner's kit at one time. It included foam, epoxy and cloth as well as the Rutan pamphlet on 'Moldless Composite Homebuilt...'. I had no experience with glass/epoxy but the small projects in the pamphlet quickly show you what works and you find out what results in a good layup, including stippling. The Rutan pamphlet is listed in the KR Bookstore here at the KRNet. It's the yellow one. Ken J ---------------------------------------------------------------------- Subject: Re: kr-1 bluefoam(polystyrene) wing From: "Ken Jordan" Date: Sun, 30 Jan 2000 12:53:58 -0800 X-Message-Number: 22 Another reason not to use bluefoam is that some epoxies could melt it like fuel does! I don't know which epoxies work with which foams. Project update: I have my elevator sanded and glassed on one side. Spent most of yesterday trying to figure out how to route the trim tab cable thru the already glassed horiz. stab. Good grief! Any hints? Thanks. Ken J ---------------------------------------------------------------------- Subject: Re: Composite Cracking? From: Mike Mims Date: Sun, 30 Jan 2000 14:24:57 -0800 X-Message-Number: 23 Dave King wrote: > The one thing I've wondered about is if its more the problem with higher uv rates and quick weather changes. > Its caused by sudden temp changes. All the various components expand and contract at different rates thus causing cracks. If I still lived in Alaska and had to park outside there is no way I would consider a composite (fiberglass/foam) or a wooden airplane. Then again I would not consider owning a plane period unless I had a hanger to park it in. I would just freak out seeing rain, hail, sleet, snow coming down in sheets and knowing its getting all over my baby! -- zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims Sanding and Filling AGAIN! :o( http://www.fortunecity.com/marina/anchor/270/ mirror @ http://www.geocities.com/CapeCanaveral/Hangar/4136/ http://members.home.com/mikemims/ Aliso Viejo CA ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ---------------------------------------------------------------------- Subject: Re: kr-1 bluefoam(polystyrene) wing From: Mike Mims Date: Sun, 30 Jan 2000 14:26:40 -0800 X-Message-Number: 24 Ken Jordan wrote: > > Don't use the blue polystyrene foam on your KR. It is not fuel > proof and you could have trouble with wing tanks or header over- > flow. >>> Oh no, I am gonna die!! -- zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims Sanding and Filling AGAIN! :o( http://www.fortunecity.com/marina/anchor/270/ mirror @ http://www.geocities.com/CapeCanaveral/Hangar/4136/ http://members.home.com/mikemims/ Aliso Viejo CA ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ---------------------------------------------------------------------- Subject: Re: kr-1 bluefoam(polystyrene) wing From: Mike Mims Date: Sun, 30 Jan 2000 14:36:48 -0800 X-Message-Number: 25 Ken Jordan wrote: > > Another reason not to use bluefoam is that some epoxies could melt > it like fuel does! I don't know which epoxies work with which foams. > "Epoxies" will not melt blue foam. Certain resins will but not epoxies. -- zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims Sanding and Filling AGAIN! :o( http://www.fortunecity.com/marina/anchor/270/ mirror @ http://www.geocities.com/CapeCanaveral/Hangar/4136/ http://members.home.com/mikemims/ Aliso Viejo CA ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ---------------------------------------------------------------------- Subject: wing spars From: "TONY SOLDANO" Date: Sun, 30 Jan 2000 15:51:15 -0800 X-Message-Number: 26 Hey guys is it neccesary to drill out the verticals of the spars?If the drilling is neccesary than what size hole should you drill? ---------------------------------------------------------------------- Subject: Re: kr-1 bluefoam(polystyrene) wing From: Chris Boultinghouse Date: Sun, 30 Jan 2000 18:18:53 -0600 X-Message-Number: 27 At 12:53 PM 1/30/00 -0800, you wrote: >Another reason not to use bluefoam is that some epoxies could melt >it like fuel does! I don't know which epoxies work with which foams. Not so. All types of epoxy is compatible with blue polystyrene foam. POLYESTER (and vinylester) will melt polystyrene foam. But the other comments are correct; gasoline will make polystyrene foam vanish like magic. ---------------------------------------------------------------------- Subject: Re: kr-1 bluefoam(polystyrene) wing From: HAshraf@aol.com Date: Sun, 30 Jan 2000 19:59:31 EST X-Message-Number: 28 In a message dated 1/30/100 5:35:59 PM EST, kwjordan@dhc.net writes: << I don't know which epoxies work with which foams. >> All epoxies work fine with styrofoam (ploystyrene). You cannot use polyester resin with it. (I do not think anyone uses polyester resin to build a/c any more). For people wanting to learn about these things, both Wicks and Aircraft Spruce catalogs has a lot of useful information. I think polystyrene foam is really good for stab/elevator and rudder/fin applications. The builder is required to build the templates anyway. I had my cores hot wired and they come in perfect. Mike Mims' planes outer wing panels are also hot wired and are pretty good. I find urethane foam hard to work with and its dust irritates my skin a lot. You can go and see my project at http://members.aol.com/hashraf/KR2S.html and look at the polystyrene tail. The elevator is carbon fiber though. Haris mailto:hashraf@aol.com ---------------------------------------------------------------------- Subject: Re: Corvair Location From: WilliamTCA@aol.com Date: Sun, 30 Jan 2000 20:50:41 EST X-Message-Number: 29 Jon, For $200 I will tell you exactly where to put the Corvair in relation to the firewall, and it will come with a free 4130 engine mount! Really, it is a calculation that has a lot of factors, but it is simple math. The tooling I have made takes into account the wide variety of planes KR builders fabricate, no two are the same. Anyone with questions, email me privately. This offer even extends to people who are just curious and have not purchased my manual Thanks William ---------------------------------------------------------------------- Subject: Re: aft spar dihedral From: "Ross R. Youngblood" Date: Sun, 30 Jan 2000 21:01:46 +0000 X-Message-Number: 30 This question is strange to me. If you set the washout per the plans, doesn't that cover this? The foward dihedral is set before the spars are installed, so I am thinking washout will cover aft spar placment. Am I missing somthing? I used a water level to set my washout, and set the plane level, checking dihedral before I jigged the aft spars in place. Mark Jones wrote: > dusty welshons wrote: > I know that the fittings have to have a 3 degree angle bent in them for the > trailing edge but I cant find anywhere in the manual that I have to raise the > aft spar 5 inches. > > Dusty. > To set the dihedral the bottom end of the aft spar should be 5 5/8" above the > bottom of the center aft spar. This dimension is found on the Spar Details > drawing. > > Mark Jones (N886MJ) > Waukesha, WI > mailto:flykr2s@execpc.com > http://sites.nstscape.net/flykr2s/homepage > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17523X@telelists.com ---------------------------------------------------------------------- Subject: Re: kr-1 bluefoam(polystyrene) wing From: "Ross R. Youngblood" Date: Sun, 30 Jan 2000 21:03:50 +0000 X-Message-Number: 31 larry krutsch wrote: > is the original kr1 plans built 1973/75 airplane safe to build & fly > today? YEP... but add seatbelts. > with no mods? Setbealts. > are the new foam wings still made the same way? > Replace Dynel fabric with fiberglass... and blue foam with urethane foam. I used blue foam on my cowling as I ran out of urethane, and it wasn't as easy to carve, but it was less fragile when you finished. > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17523X@telelists.com ---------------------------------------------------------------------- Subject: Re: kr-1 bluefoam(polystyrene) wing From: cartera Date: Sun, 30 Jan 2000 21:07:15 -0700 X-Message-Number: 32 Naw! your going to live to be a hundred, only the good die young!!!!!!! Mike Mims wrote: > > Ken Jordan wrote: > > > > Don't use the blue polystyrene foam on your KR. It is not fuel > > proof and you could have trouble with wing tanks or header over- > > flow. >>> > > Oh no, I am gonna die!! > > -- > zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz > Micheal Mims > Sanding and Filling AGAIN! :o( > http://www.fortunecity.com/marina/anchor/270/ > mirror @ > http://www.geocities.com/CapeCanaveral/Hangar/4136/ > http://members.home.com/mikemims/ > Aliso Viejo CA > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > --- > You are currently subscribed to kr-net as: cartera@cuug.ab.ca > To unsubscribe send a blank email to leave-kr-net-17454M@telelists.com -- Adrian VE6AFY Calgary, Alberta Mailto:cartera@cuug.ab.ca http://www.cuug.ab.ca/~cartera ---------------------------------------------------------------------- Subject: Re: cutting glass cloth From: "Ross R. Youngblood" Date: Sun, 30 Jan 2000 21:22:43 +0000 X-Message-Number: 33 "Stipple" is typically a process where you poke the glass cloth with a paintbrush. This gets the cloth wetted out without adding excessive amounts of resin. Check out the "bookstore" on KR-net, http://www.krnet.org it refers to a book which is sold by Aircraft Spruce and Wicks which is a great tutorial on working with fiberglass. You learn how to build an epoxy scale, and some bookends. The book is written by Rutan for Scaled Composites Inc. -- Ross Lon V Boothby wrote: > sorry for the ignorance here, but I really would like to learn, > what so you mean by stipple down? > Thanks > ________________________________________________________________ > YOU'RE PAYING TOO MUCH FOR THE INTERNET! > Juno now offers FREE Internet Access! > Try it today - there's no risk! For your FREE software, visit: > http://dl.www.juno.com/get/tagj. > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17523X@telelists.com ---------------------------------------------------------------------- Subject: Re: KRNet posting delays? From: "Ross R. Youngblood" Date: Sun, 30 Jan 2000 21:25:19 +0000 X-Message-Number: 34 Mark, I need to check with Teleport customer service about this. They indicated they were not accepting any new mail lists last November when they started noticing performance problems with the Lyris server. I haven't heard that they have resolved the problems yet but I will email them just in case. -- Ross Mark Langford wrote: > Is there anything we can do about the huge delays we've been experiencing > with our KRNet posts lately? I've posted messages that didn't appear until > five hours later. I know the delay is on the server end, since the messages > are time stamped as originating from KRNet at that time. This delay results > in five people answering the same message (thinking "If nobody else is gonna > do it, I will"), like the dihedral question yesterday. It's no coincidence > that Mark Jones, me, Don Reid, and Mike MIms all responded to this. It's not > that none of us thought the answers were not good enough, it's that we > thought the question hadn't been answered at all. > > This problem has been going on for a while. Most other lists that I've been > on you'll see your message posted in a matter of seconds, or minutes at the > very least. Maybe we need to "rattle their cage" on this, or find a mail > service that's not quite so busy... > > Mark Langford, Huntsville, Alabama > mailto:langford@hiwaay.net > see KR2S project N56ML at http://home.hiwaay.net/~langford > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17523X@telelists.com ---------------------------------------------------------------------- Subject: Progress? From: Mike Mims Date: Sun, 30 Jan 2000 20:35:07 -0800 X-Message-Number: 35 I don't know of this will get through to the KRNet as I think I may have posted my quota for the day. Anyway I wanted to report on some progress made in the last little while. I finally decided that moving the plane around as well as painting it and doing finish work would be easier if the darn wings were not attached. So guess what I did? Yep I sawed them puppies off! It is SOOOOOOO much easier to work with now, I am glad I did it. I also mounted the fiberfax to the firewall as well as the .016 stainless steel. My wheels and brakes are mounted for the final time as well as the brakes filled with fluid. Man they sure feel NICE!. In the next two to three weeks I plan to finish up all the body work and put on the white base coat (at least on the fuselage) Then I will hang the engine and start hooking up systems. Its a race down hill now! :o) -- zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims Sanding and Filling AGAIN! :o( http://www.fortunecity.com/marina/anchor/270/ mirror @ http://www.geocities.com/CapeCanaveral/Hangar/4136/ http://members.home.com/mikemims/ Aliso Viejo CA ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ---------------------------------------------------------------------- Subject: Re: wing spars From: "w.g. kirkland" Date: Mon, 31 Jan 2000 01:51:13 -0500 X-Message-Number: 36 Tony: Yes. If you don't you will have a sealed compartment that when subjected to the lower pressure at altitude may expand and crack. About 1/4" at the bottom will do. W.G. KIRKLAND kirkland@vianet.on.ca ---------- > From: TONY SOLDANO > To: KR-net users group > Subject: [kr-net] wing spars > Date: Sunday, January 30, 2000 6:51 PM > > Hey guys is it neccesary to drill out the verticals > of the spars?If the drilling is neccesary than what > size hole should you drill? > > --- > You are currently subscribed to kr-net as: kirkland@vianet.on.ca > To unsubscribe send a blank email to leave-kr-net-39277K@telelists.com ---------------------------------------------------------------------- Subject: Re: kr-1 bluefoam(polystyrene) wing From: Michael Taglieri Date: Mon, 31 Jan 2000 02:00:29 -0500 X-Message-Number: 37 >Mike Mims wrote: >> >> Ken Jordan wrote: >> > >> > Don't use the blue polystyrene foam on your KR. It is not fuel >> > proof and you could have trouble with wing tanks or header over- >> > flow. >>> >> >> Oh no, I am gonna die!! It seems to be kind of a 50:50 proposition in terms of risk. Blue foam can kill you if your wingtank springs a leak, and urethane can kill you if you have a fire, because it produces cyanide gas if it burns. I think if you use blue foam and only a header tank you'd be safest, because a fuel leak wouldn't come anywhere near the wings. Mike Taglieri ________________________________________________________________ YOU'RE PAYING TOO MUCH FOR THE INTERNET! Juno now offers FREE Internet Access! Try it today - there's no risk! For your FREE software, visit: http://dl.www.juno.com/get/tagj. --- END OF DIGEST --- You are currently subscribed to kr-net as: johnbou@ipinc.net To unsubscribe send a blank email to leave-kr-net-110995W@telelists.com