From: krnet-bounces@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 347, Issue 160 Date: 4/24/2005 9:00:13 PM Send KRnet mailing list submissions to krnet@mylist.net To subscribe or unsubscribe via the World Wide Web, visit http://mylist.net/listinfo/krnet or, via email, send a message with subject or body 'help' to krnet-request@mylist.net You can reach the person managing the list at krnet-owner@mylist.net When replying, please edit your Subject line so it is more specific than "Re: Contents of KRnet digest..." Today's Topics: 1. Re: KR > Stability (Mark Jones) 2. How to get a post put on the list. (Curtis Chance) 3. RE: was Posa, now Revflow (Brian Kraut) 4. RE: was Posa, now Revflow (Steve Glover) 5. Re: was Posa, now Revflow (Orma) 6. posa carbs (Don Chisholm) 7. Itching to fly. (Mark Jones) 8. wing ridgidity (Dene Collett (SA)) 9. Re: Itching to fly. (Dan Heath) 10. Re: Anyone interested in a 95% finished KRS (N667HU@aol.com) 11. Re: posa carbs (Dan Heath) 12. Re: Icing (Mark Jones) 13. Re: wing ridgidity (larry flesner) 14. Re: wing ridgidity (Martindale Family) 15. RE: posa carbs (Jim Faughn) 16. Re: Icing (Pat Driscoll) 17. Re: was Posa, now Revflow (Joe) 18. Re: Icing (Mark Jones) ---------------------------------------------------------------------- Message: 1 Date: Sun, 24 Apr 2005 06:09:59 -0500 From: "Mark Jones" Subject: KR> Re: KR > Stability To: "KR Net" Message-ID: <000a01c548be$2dc68c20$6401a8c0@wi.rr.com> Content-Type: text/plain; charset="iso-8859-1" >Mark Langford wrote: >I forget how long Mark's h/s is, but Bill Clapp's is a little >longer than even the stock plans call for, maybe 3" per side. If >Marks's is >6" longer per side like mine, that would definitely make a difference. And >the fact that the horizontal stabilizer is a "real" airfoil has to make it >more effective than the thing shown in the plans, somewhat equivalent to >making it larger. That horizontal stab airfoil is one that I'll take credit >for, since I sized it to fit my airplane, and created the drawings that are >now on the net for it. The vertical stab is definitely my creation, as it's >a one-of-kind 5.5% airfoil based on a known airfoil formula, designed to fit >the "stock" vertical stab spars. Sorry this took so long to respond to. My horizontal stabilizer is 84 1/4" total width. Mark Jones (N886MJ) Wales, WI USA E-mail me at flykr2s@wi.rr.com Visit my KR-2S CorvAIRCRAFT web site at http://mywebpage.netscape.com/n886mj/homepage.html ------------------------------ Message: 2 Date: Sun, 24 Apr 2005 09:34:02 -0400 From: "Curtis Chance" Subject: KR> How to get a post put on the list. To: Message-ID: Content-Type: text/plain; charset="iso-8859-1" I've sent the following post twice over the last week and it still hasn't made it onto the list. KR2S Spruce/Plywood/Plans FOR SALE I hate to let it go but after 10 years of procrastination and frequent military moves I've realized I will not be able to start building my KR2S. I have up for sale one set of plans spruce kit (15' spruce for possible KR2Streeeeeetch/widening), plywood kit (mahogany) and plans. First $1500.00 wins. Local pick up unless you arrange/pay shipping. Located in Jacksonville FL (until 25 May). After May 25 I relocate to Meridian MS. Thanks Curtis curtis.chance@navy.mil navalavi8or@bellsouth.net ------------------------------ Message: 3 Date: Sun, 24 Apr 2005 11:10:11 -0400 From: "Brian Kraut" Subject: RE: KR> was Posa, now Revflow To: "KRnet" Message-ID: Content-Type: text/plain; charset="us-ascii" I hear a lot on the Posa carb. I know that the Revflow is supposed to be an improvement, but you don't hear a lot about it. I have a Revflow on a KR now, but have not run it yet. Do the Revflows belong in the dumpster also or are they good carbs? Brian Kraut Engineering Alternatives, Inc. www.engalt.com ------------------------------ Message: 4 Date: Sun, 24 Apr 2005 08:27:11 -0700 From: "Steve Glover" Subject: RE: KR> was Posa, now Revflow To: "KRnet" Message-ID: Content-Type: text/plain; charset="US-ASCII" I have been flying a Rveflow for about 200 hours. Other than the initial adjustments, it has been fine. Wedid make our own needle for it so I had more room to contour it as needed. I probably could have done the same with one of their needles. I guess I just like fiddling and making my own stuff. It could still use a little fine tuning as I am a bit rich in the mid to high range, But that is why I have a mixture control. I think Joe Weber also is flying the Revflow... Steve Glover KR-2 N902G AJO, Ca --------------------------------------------------------------------------- I hear a lot on the Posa carb. I know that the Revflow is supposed to be an improvement, but you don't hear a lot about it. I have a Revflow on a KR now, but have not run it yet. Do the Revflows belong in the dumpster also or are they good carbs? Brian Kraut Engineering Alternatives, Inc. www.engalt.com _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html ------------------------------ Message: 5 Date: Sun, 24 Apr 2005 12:12:56 -0400 From: "Orma" Subject: Re: KR> was Posa, now Revflow To: "KRnet" Message-ID: <001301c548e8$7ac8f510$0302a8c0@ROBBINS1> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original The revflow was designed as an improvement to the posa. It refined some of the poor areas that the posa just could not do right, like the mixture control and positive fuel shutoff. As Steve said, for some of us, the needle still did not cover all the range of performance. I also custom carved a needle to meet my needs. Unlike the posa, at least this could be done, with a good chance of success. Joe at Revmaster will work with you and even custom cut a needle for you if necessary. I like the carb and will continue it's use. Orma Southfield, MI N110LR Tweety, old enough to drink this year Flying and more flying, to the gathering or bust http://www.kr-2.aviation-mechanics.com/ ------------------------------ Message: 6 Date: Sun, 24 Apr 2005 14:47:58 -0400 (EDT) From: Don Chisholm Subject: KR> posa carbs To: krnet@mylist.net Message-ID: <20050424184758.67465.qmail@web88011.mail.re2.yahoo.com> Content-Type: text/plain; charset=us-ascii I'm just getting set up one more time around to get my KR1 going and have most of my engine parts to reassemble it. I'm going to use my posa to get it running and we'll see how it works this time, it won't take much for me to delegate it to the boat anchor department. A KR driver friend of mine started with a Revflow carburetor that was worked over when he got it with his engine and tried for about a year to get it to work before he got an Aerocarb and has put more than 300 hrs on his KR2 since he started using it. The way he figures is that if you are expecting these carbs to work like the stock carb on a 0 320 Lycoming or like engine, it's not going to happen. These carbs are glorified petcocks and mixture changes are what is required to run the engine. An EGT gauge is a must to monitor how you're feeding your engine Fred Flintstone would be at home here ------------------------------ Message: 7 Date: Sun, 24 Apr 2005 14:04:20 -0500 From: "Mark Jones" Subject: KR> Itching to fly. To: "Corvaircraft" , "KR Net" Message-ID: <002c01c54900$70292720$6401a8c0@wi.rr.com> Content-Type: text/plain; charset="iso-8859-1" The weather here in Wisconsin has been less than acceptable for flying. The winds have been very strong for the last few days. They are 21 mph gusting 33 right now from the NorthEast. We even had a few snow showers yesterday. Regardless, I have been at the airport this past Friday evening, yesterday morning at daybreak till noon and today daybreak till noon. I have gotten a lot of things accomplished such as priming my cowling and front deck with Mar-Hyde Ultimate 2K Primer. This was after I smoothed them out using Icing to perfect the blemishes. Since I could not fly, I decided to change the oil using Shell Rotella T 15w40 and a K&N oil filter. My oil pressure had been running a little low so I ordered me a new spring from Clarks Corvair. I removed the old one and it was 3/16" shorter than the new one in comparison. That explains the low oil pressure. I also sealed the oil cooler air box where all the air entering the box will be forced through the filter and not allowed to escape around the outside of the oil cooler. I installed an air oil separator on the firewall and connected the tubing. I was only running the stock Corvair breather on the top of the engine venting the tube out of the bottom of my cowl. I was getting very little residue on the belly but I was also cleaning it off after every flight. Therefore, I decided to install the firewall mounted breather to hopefully eliminate all the residue on the fuselage belly. Next, I decided to remove the valve covers and check things out. After that I removed the top engine cover to expose the inside. I inspected the connecting rods, cylinder walls, wrist pins, and then crank and cam as best as possible. The engine has 43 hours on it and all checked out perfect. By opening the engine and looking around gave me a piece of mind that all was good to go. Mark Jones (N886MJ) Wales, WI USA E-mail me at flykr2s@wi.rr.com Visit my KR-2S CorvAIRCRAFT web site at http://mywebpage.netscape.com/n886mj/homepage.html ------------------------------ Message: 8 Date: Sun, 24 Apr 2005 22:27:46 +0200 From: "Dene Collett (SA)" Subject: KR> wing ridgidity To: "KRnet" Message-ID: <000a01c5490c$33d41760$239eef9b@DeneCollett> Content-Type: text/plain; charset="iso-8859-1" Since my retract gear is attached to a tube running between the front and rear spars that locates in a self aligning bearing/bush at each end much like the head of a rod end bearing which is attached by the WAF bolts to the spars, my question is: How ridgid is the wing with regard to the distance between the two spars once the skin is laid up (Mark L style skins)? For those that have seen the lancair 360 gear, mine is very similar where it attaches to the wing spars which means that if the spars move approx 1/2" further apart, the gear will become "unplugged". My stubs are not yet skinned and the rear spar is able to move forward and back with very little effort. How much force would it take to cause the wing to "stretch" once skinned and attached to the outer wing? I suppose I could put a wrap of uni-directional tape around the wing in the area of the WAF's?? Regards Dene Collett South Africa KR2SRT builder mailto: dene.collett@telkomsa.net www.whisperaircraft.co.za ------------------------------ Message: 9 Date: Sun, 24 Apr 2005 17:02:28 -0400 (Eastern Daylight Time) From: "Dan Heath" Subject: Re: KR> Itching to fly. To: Message-ID: <426C0964.000003.03540@DANHOMECOMPUTER> Content-Type: Text/Plain; charset="iso-8859-1" Mark, Please describe what icing is and how it performs. See you in Mt. Vernon - 2005 - KR Gathering See N64KR at http://KR-Builder.org - Then click on the pics There is a time for building and a time for FLYING and the time for building has expired. Daniel R. Heath - Columbia, SC ------------------------------ Message: 10 Date: Sun, 24 Apr 2005 17:05:19 EDT From: N667HU@aol.com Subject: Re: KR> Anyone interested in a 95% finished KRS To: krnet@mylist.net Message-ID: <9.42b44474.2f9d640f@aol.com> Content-Type: text/plain; charset="US-ASCII" I am also interested in this plane. Please send info to me offline. Thanks Larry ------------------------------ Message: 11 Date: Sun, 24 Apr 2005 17:06:32 -0400 (Eastern Daylight Time) From: "Dan Heath" Subject: Re: KR> posa carbs To: Message-ID: <426C0A58.000005.03540@DANHOMECOMPUTER> Content-Type: Text/Plain; charset="iso-8859-1" That is why I use an Ellison. And I agree about the EGT. It is a good to crosscheck what you think you are hearing. See you in Mt. Vernon - 2005 - KR Gathering See N64KR at http://KR-Builder.org - Then click on the pics There is a time for building and a time for FLYING and the time for building has expired. Daniel R. Heath - Columbia, SC -------Original Message------- These carbs are glorified petcocks and mixture changes are what is required to run the engine. An EGT gauge is a must to monitor how you're feeding your engine ------------------------------ Message: 12 Date: Sun, 24 Apr 2005 16:20:45 -0500 From: "Mark Jones" Subject: Re: KR> Icing To: "KRnet" Message-ID: <004a01c54913$7ed4aac0$6401a8c0@wi.rr.com> Content-Type: text/plain; charset="iso-8859-1" Icing is an automotive filler used to fill spots and scratches that are less than 1/8" deep. It is a polyester filling putty which needs a hardener. the mix ratio is 50:1. It is stain free, tack free and exceptionally easy to sand. It is formulated for final finish over body filler, rust pits, pinholes,scratches, etc. This stuff sets in three minutes so you work small areas at a time. It spreads very easily and a small amount goes a long way. It is self leveling and fills pinholes not just covers them. You can sand this in 15-20 minutes after applying it. It feathers easier than any other filler I have tried. Made by USC (U.S. Chemical & Plastics) under part #26006. It comes in a 24 oz tube with filler for $20.00. Get it at any auto paint supply store. Try it, you will be glad you did. Mark Jones (N886MJ) Wales, WI USA E-mail me at flykr2s@wi.rr.com Visit my KR-2S CorvAIRCRAFT web site at http://mywebpage.netscape.com/n886mj/homepage.html ----- Original Message ----- From: "Dan Heath" To: Sent: Sunday, April 24, 2005 4:02 PM Subject: Re: KR> Itching to fly. > Mark, > > Please describe what icing is and how it performs. > > See you in Mt. Vernon - 2005 - KR Gathering > See N64KR at http://KR-Builder.org - Then click on the pics There is a > time for building and a time for FLYING and the time for building > has expired. > Daniel R. Heath - Columbia, SC _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > ------------------------------ Message: 13 Date: Sun, 24 Apr 2005 18:40:13 -0500 From: larry flesner Subject: Re: KR> wing ridgidity To: KRnet Message-ID: <3.0.6.32.20050424184013.0083b2f0@pop.midwest.net> Content-Type: text/plain; charset="us-ascii" . My stubs are not yet skinned and the rear spar is able to move forward and back with very little effort. How much force would it take to cause the wing to "stretch" once skinned and attached to the outer wing? >Dene Collett ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Once skinned you should have little if any movement. My answer would be," not to worry". Didn't get to fly this weekend. Winds in the mid to high teens with gust to the mid 20's. Sooooooo, I worked on a Rans S6 Cyote for a friend. It's the one you may have seen at Sun-N-Fun with the Harley engine. We got it unloaded, into my hangar, wings and tail surfaces mounted, and then I spent the day going over all the hardware and installing cotter pins, etc. At least I got to hang out at the airport and spend time with the KR. Have a good week everyone.......... Larry Flesner ------------------------------ Message: 14 Date: Mon, 25 Apr 2005 10:13:14 +1000 From: "Martindale Family" Subject: Re: KR> wing ridgidity To: "KRnet" Message-ID: <002501c5492b$9307a3e0$da26ecdc@athlon2400> Content-Type: text/plain; charset="iso-8859-1" Hi Dean That sounds like a neat way to do it. My question is how do you get the wheels to finish up forward of the main spar (assuming a tail dragger) after extension from wells located between the spars? Do you somehow have the main tube running at an angle between the spars? Also, how far out is your pivot from the fuselage? I guess that having it at the ends of the stubs would allow the longest gear legs but then more stub distance and leg length would promote more twist between the spars which seems to be your concern. I think some uni-directional or carbon fibre strap, especially across the bottom of the wing between the pivot brackets wouldn't be a bad thing but I've no engineering analysis to support that. >From vague memory, my TC has his gear legs hanging off an extension of >the tube you mention that goes through the centre of the main and stops in the wing nose. His gear then folds up into the leading edge wing root fillet which is enlarged to allow it, that is, his legs and wheels all tuck away forward of the spar. I prefer your arrangement Dean but it would mean no stub fuel tanks...hmmm John The Martindale Family 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 email: johnjanet@optusnet.com.au ----- Original Message ----- From: "Dene Collett (SA)" To: "KRnet" Sent: Monday, April 25, 2005 6:27 AM Subject: KR> wing ridgidity > Since my retract gear is attached to a tube running between the front > and rear spars that locates in a self aligning bearing/bush at each end much like the head of a rod end bearing which is attached by the WAF bolts to the spars, my question is: How ridgid is the wing with regard to the distance between the two spars once the skin is laid up (Mark L style skins)? > For those that have seen the lancair 360 gear, mine is very similar > where it attaches to the wing spars which means that if the spars move approx 1/2" further apart, the gear will become "unplugged". My stubs are not yet skinned and the rear spar is able to move forward and back with very little effort. How much force would it take to cause the wing to "stretch" once skinned and attached to the outer wing? > I suppose I could put a wrap of uni-directional tape around the wing > in the area of the WAF's?? > Regards > Dene Collett > South Africa > KR2SRT builder > mailto: dene.collett@telkomsa.net > www.whisperaircraft.co.za _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html ------------------------------ Message: 15 Date: Sun, 24 Apr 2005 20:14:27 -0500 From: "Jim Faughn" Subject: RE: KR> posa carbs To: "'KRnet'" Message-ID: <000f01c54934$206d7ae0$3fd75540@jfaughn> Content-Type: text/plain; charset="us-ascii" Old Posa Stuff.... I actually found I didn't have to swing a dead chicken or dance. All I had to do is about 3 hours of tuning and the fuel slide ( I won't call it a carb ) runs fine. The link to the article on my web site is: http://members.socket.net/~jfaughn/kr/uniquepartsofmykr/posa_carb_tuning .html Jim Faughn 891JF -----Original Message----- From: krnet-bounces@mylist.net [mailto:krnet-bounces@mylist.net] On Behalf Of Oscar Zuniga Sent: Friday, April 22, 2005 4:20 PM To: krnet@mylist.net Subject: KR> posa carbs Don wrote- >I gather they can be made to work >will give the posa another shot >am interested in feedback both pro and con Well, since it's Friday I guess it's OK to whip a dead horse a little. My only experience with the POSA is not first-hand really; it's with my friend Paul Martin's KR-2. He had a very stock KR-2 with a very stock 1835 VW and ran a POSA on it. Successfully, for (I believe) about 150 hrs. before he sold it. He was all set to fly it from southern Oregon to Oshkosh one year, but situations changed and he didn't do it, but he had that kind of confidence in the airplane and engine. Paul, like others who were able to make the POSA run, went through the "swinging a dead chicken while jumping on one foot" routine. It involves shaping the middle section of the needle to just the right contour to avoid a flat spot in the engine midrange. Usually it can be made to run OK at wide open throttle and at idle, but either stumbles, stalls, or runs rich at midrange. The secret involves tying down the airplane and running the engine at several different increments of throttle, killing the engine at a fixed RPM with everything stable, and reading the plugs and gauges (EGT, etc.) to see if it's rich or lean at that RPM, then either building up the needle (if it's too rich) or filing it down (if it's too lean). This is done at several settings and then the needle is sort of polished or smoothed out to take any 'steps' out of it. Then you run another round to make sure you got it right, or just go fly it and see if it works OK. I believe I've seen or heard something about filing a flat onto the needle too, but that just may be part of the lore that goes with this unit. I think the goosey part is when you're on short final at reduced power and see that you're going to be short and blip the throttle. You don't want it to stumble or quit right then ;o) If all else fails, I understand you can do one of two things (after opening a cold beer): (1) start swinging a dead chicken over your head while hopping on one foot, or (2) aim the unit for the nearest trash can. Some have done both; others have settled for the cold beer and forgot what they were doing to begin with. Happy Friday! Oscar Zuniga San Antonio, TX mailto: taildrags@hotmail.com website at http://www.flysquirrel.net _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html ------------------------------ Message: 16 Date: Sun, 24 Apr 2005 21:02:54 -0500 From: "Pat Driscoll" Subject: Re: KR> Icing To: "KRnet" Message-ID: <001501c5493a$e7495200$0500a8c0@domain.actdsltmp> Content-Type: text/plain; charset="iso-8859-1" Mark, Anyone used this "Icing" on a aircraft that you know of? Is there any chance that vibration will cause it to release from the skin and chip away? Pat Driscoll Saint Paul, MN patrick36@usfamily.net --- http://USFamily.Net/dialup.html - $8.25/mo! -- http://www.usfamily.net/dsl.html - $19.99/mo! --- ------------------------------ Message: 17 Date: Sun, 24 Apr 2005 21:26:31 -0500 From: "Joe" Subject: Re: KR> was Posa, now Revflow To: "KRnet" Message-ID: <004101c5493e$31fe0c20$4ccab4d8@Denise> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original I could not get the revflow adjusted right at first. So I called Revmaster and explained the problem. They sent me a new needle and after a few adjustments it works good. Joe Weber ----- Original Message ----- From: "Brian Kraut" To: "KRnet" Sent: Sunday, April 24, 2005 10:10 AM Subject: RE: KR> was Posa, now Revflow >I hear a lot on the Posa carb. I know that the Revflow is supposed to >be >an > improvement, but you don't hear a lot about it. I have a Revflow on a KR > now, but have not run it yet. Do the Revflows belong in the dumpster also > or are they good carbs? > > Brian Kraut > Engineering Alternatives, Inc. > www.engalt.com > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > ------------------------------ Message: 18 Date: Sun, 24 Apr 2005 21:44:24 -0500 From: "Mark Jones" Subject: Re: KR> Icing To: "KRnet" Message-ID: <009a01c54940$b4f951a0$6401a8c0@wi.rr.com> Content-Type: text/plain; charset="iso-8859-1" Bill Clapp used it on his. He is the one who told me about it. It is very common in the automotive industry. Mark Jones (N886MJ) Wales, WI USA E-mail me at flykr2s@wi.rr.com Visit my KR-2S CorvAIRCRAFT web site at http://mywebpage.netscape.com/n886mj/homepage.html ----- Original Message ----- From: "Pat Driscoll" To: "KRnet" Sent: Sunday, April 24, 2005 9:02 PM Subject: Re: KR> Icing > Mark, > Anyone used this "Icing" on a aircraft that you know of? Is there > any chance that vibration will cause it to release from the skin and chip away? > Pat Driscoll > Saint Paul, MN > patrick36@usfamily.net > > > --- http://USFamily.Net/dialup.html - $8.25/mo! -- http://www.usfamily.net/dsl.html - $19.99/mo! --- > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 347, Issue 160 *************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================