From: To: Subject: krnet Digest 12 Apr 2000 13:38:34 -0000 Issue 10 Date: Wednesday, April 12, 2000 5:38 AM krnet Digest 12 Apr 2000 13:38:34 -0000 Issue 10 Topics (messages 172 through 188): Anti servo tabs 172 by: Ryan Winslow 176 by: GARYKR2.cs.com Re: Encoder magic? 173 by: marmet 175 by: GARYKR2.cs.com Re: In praise of T-88 174 by: Tracy & Carol O'Brien Corvair engine 177 by: Edwin Blocher Re: corvaircraft: Corvair engine 178 by: Tlongcrier.aol.com Re: Re Fuel Pump Dilemma 179 by: Alessandro Pecorara 180 by: Richard Parker 181 by: Seibert Family 185 by: w.g. kirkland 186 by: Mark Jones 188 by: Jeff Scott Back from S&F 182 by: Tom Crawford 183 by: Mike Mims Inventory 184 by: Mike Mims Teflon Tape and fuel systems 187 by: AviationMech.aol.com Administrivia: To subscribe to the digest, e-mail: To unsubscribe from the digest, e-mail: To post to the list, e-mail: ---------------------------------------------------------------------- Date: Mon, 10 Apr 2000 09:19:06 -0400 To: "krnet" From: "Ryan Winslow" Subject: Anti servo tabs Message-ID: <000d01bfa2ef$5a53fb80$897676a3@rm705s-a.roberts.fit.edu> ------=_NextPart_000_000A_01BFA2CD.D2469660 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Has anyone thought about/tried going Piper style and adding an = anti-servo tab to their elevators? Would this be a feasible option to = increase the pitch control feedback? Ryan Winslow Seattle and Melbourne, FL ------=_NextPart_000_000A_01BFA2CD.D2469660-- ------------------------------ Date: Mon, 10 Apr 2000 21:19:32 EDT To: rwinslow@fit.edu, krnet@mailinglists.org From: GARYKR2@cs.com Subject: Re: KR> Anti servo tabs Message-ID: In a message dated 4/10/00 9:28:57 AM Eastern Daylight Time, rwinslow@fit.edu writes: << Has anyone thought about/tried going Piper style and adding an anti-servo tab to their elevators? Would this be a feasible option to increase the pitch control feedback? Ryan Winslow Seattle and Melbourne, FL >> Yes. My "2" is set up that way. Works just like the book says. If you are at Barklykosh, you can see mine. If the weather holds I will be there Thursday afternoon. Gary Hinkle[A/P] Middletown, Pa. garykr2@cs.com ------------------------------ Date: Mon, 10 Apr 2000 09:41:14 -0400 To: Mark Langford From: marmet Cc: krnet@mailinglists.org Subject: Re: KR> Encoder magic? Message-id: <38F1D9FA.8693AF1@videotron.ca> --Boundary_(ID_//SITl1ru9jOP4MaBXAB5w) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7bit Mark, you are absolutely right. the encoder takes the atmospheric pressure from the static pressure system of your aircraft. It translate this in a digital code which is transmitted to the ATC via the transponder and the ATC makes the adjustment to the local atmospheric pressure. J.C. Marcoux Quebec, Qc Canada Mark Langford wrote: > KRNetHeads, > > It looks a little slow today, so maybe I can get away with another dumb > question. Having completed my radio and transponder wiring weeks ago, I > started wondering. How does a transponder encoder know how high it is? > You have to "calibrate" your altimeter every time you take off to compensate > for varying barometric pressure, but you don't do anything like that to the > encoder. The only scenario that I can visualize is that the encoder just > sends out a signal that corresponds to your static system's pressure, and > the ATC hardware converts that pressure (considering local ambient pressure) > into an altitude. Am I missing something? > > Mark Langford, Huntsville, Alabama > --Boundary_(ID_//SITl1ru9jOP4MaBXAB5w)-- ------------------------------ Date: Mon, 10 Apr 2000 21:12:54 EDT To: langford@hiwaay.net, krnet@mailinglists.org From: GARYKR2@cs.com Subject: Re: KR> Encoder magic? Message-ID: <48.3e4d3cd.2623d616@cs.com> In a message dated 4/9/00 3:07:56 PM Eastern Daylight Time, langford@hiwaay.net writes: << How does a transponder encoder know how high it is? >> The encoder is connected to the same static source as the alt. The encoder has to be "tuned" [ the internal altimeter] by a shop that is certified to do static system checks. This has to be done to be legal when the transponder is in the alt reporting mode. The ground radar's computer does the barometric pressure correction so the corrected altitude is displayed on the controller's screen. I installed an ACK blind encoder in my "2" that has worked fine from the get-go. Gary Hinkle[A/P] Middletown, Pa. garykr2@cs.com ------------------------------ Date: Mon, 10 Apr 2000 08:17:31 -0700 To: "Oscar Zuniga" ,krnet@mailinglists.org From: Tracy & Carol O'Brien Subject: Re: KR> In praise of T-88 Message-Id: <3.0.3.32.20000410081731.006e7d50@localaccess.com> Netters, Regarding separation/ and or crystalization in T-88 or any other epoxy resin: This is a condition that happens over time to most resins, but is accelerated by storage at low temperatures. The condition is easily reversed and the bonding qualities of the resin will not be affected. The way I do it is to put the resin container in my wife's giant canning pot with the resin jug held up off the bottom with a muffin tin. I fill up the pot with water and simmer the whole thing on the stove until the crystals are dissolved. Tracy O'Brien EAA 64230 (eighteen year veteran wood/epoxy boat designer/builder, and wood/epoxy boat construction seminar instructor. ) ------------------------------ Date: Mon, 10 Apr 2000 21:19:26 -0500 To: "krnet" From: "Edwin Blocher" Cc: "corvaircraft" Subject: Corvair engine Message-ID: <002a01bfa35c$629df120$3887aec7@preinstalledcom> ------=_NextPart_000_0027_01BFA332.74691800 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi all, Just a comment or two about the Corvair engine. I don't have any = previous experience with working on engines but after removing and = dis-assembling my Corvair engine I am impressed. I got it all apart = today and am amazed that that little engines parts take up half my = garage. Too bad "Darth" Nader got involved because the engineering on = the corvair is very impressive. Now to get on with cleaning up all the = parts and start the rebuild.=20 My KR is on hold now until I can make some more room to work on it (get = the engine out of the way). Mark Jones video with 14 minutes of the = Corvair running engine really got me fired up. Ed Ed Blocher Moody, AL mailto: kr-n899eb@mindspring.com ------=_NextPart_000_0027_01BFA332.74691800-- ------------------------------ Date: Mon, 10 Apr 2000 23:15:58 EDT To: corvaircraft@usm.edu, krnet@mailinglists.org From: Tlongcrier@aol.com Subject: Re: corvaircraft: Corvair engine Message-ID: Ed I must have missed it. How did you get your stuck cylinders off? Did you get any respose when you asked for help? If so, what was the advice? I got mine off, but there must be an easier way. Thanks Thurman Longcrier TLongcrier@aol.com Florence, AL ------------------------------ Date: Tue, 11 Apr 2000 09:51:22 +0200 To: Leigh From: Alessandro Pecorara CC: krnet@mailinglists.org Subject: Re: KR> Re Fuel Pump Dilemma Message-ID: <38F2D97A.1AC22507@telecomitalia.it> Many thanks for all your replies What about using Teflon tape rather than lube to prevent leaks? Cheers Alessandro Torino Italia ------------------------------ Date: Tue, 11 Apr 2000 05:27:01 PDT To: alessandro.pecorara@telecomitalia.it From: "Richard Parker" Cc: krnet@mailinglists.org Subject: Re: KR> Re Fuel Pump Dilemma Message-ID: <20000411122701.37957.qmail@hotmail.com> teflon tape shreds are notorious for causing valves to leak and plugging up small orifices. Rich Parker >From: Alessandro Pecorara >To: Leigh >CC: krnet@mailinglists.org >Subject: Re: KR> Re Fuel Pump Dilemma >Date: Tue, 11 Apr 2000 09:51:22 +0200 > > > >Many thanks for all your replies >What about using Teflon tape rather than lube to prevent leaks? >Cheers >Alessandro >Torino Italia > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: krnet-unsubscribe@mailinglists.org >For additional commands, e-mail: krnet-help@mailinglists.org > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com ------------------------------ Date: Tue, 11 Apr 2000 17:08:34 -0400 To: Alessandro Pecorara From: Seibert Family CC: Leigh , krnet@mailinglists.org Subject: Re: KR> Re Fuel Pump Dilemma Message-ID: <38F39451.F079FB90@epix.net> My experience is to never---never use teflon tape on fittings of a fuel or hydraulic system. A company I used to work for used teflon tape on some hydraulic power units. The outcome was many, many dollars spent to remove small pieces of teflon from every valve, pump, oriface in the systems. Teflon tape is alright for NON critical systems but never for fuel or hydraulic systems. Carroll Seibert Alessandro Pecorara wrote: > Many thanks for all your replies > What about using Teflon tape rather than lube to prevent leaks? > Cheers > Alessandro > Torino Italia > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: krnet-unsubscribe@mailinglists.org > > For additional commands, e-mail: krnet-help@mailinglists.org ------------------------------ Date: Wed, 12 Apr 2000 00:37:33 -0400 To: "Leigh" , "Alessandro Pecorara" From: "w.g. kirkland" Cc: Subject: Re: KR> Re Fuel Pump Dilemma Message-Id: <200004120435.AAA00596@vianet.on.ca> No absolutely not. Teflon tape is not fuel compatible. W.G. KIRKLAND kirkland@vianet.on.ca ---------- > From: Alessandro Pecorara > To: Leigh > Cc: krnet@mailinglists.org > Subject: Re: KR> Re Fuel Pump Dilemma > Date: Tuesday, April 11, 2000 3:51 AM > > > > Many thanks for all your replies > What about using Teflon tape rather than lube to prevent leaks? > Cheers > Alessandro > Torino Italia > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: krnet-unsubscribe@mailinglists.org > For additional commands, e-mail: krnet-help@mailinglists.org ------------------------------ Date: Tue, 11 Apr 2000 23:46:23 -0500 From: Mark Jones CC: krnet@mailinglists.org Subject: Re: KR> Re Fuel Pump Dilemma Message-ID: <38F3FF9F.25C16C0F@execpc.com> Hi Guys, I was in contact with Nibco Valve Company and was discussing their 1/4 & 3/8 ball valves as a fuel shut off valve. Their teflon seated ball valves are fuel rated. Why would teflon tape not be compatible? "w.g. kirkland" wrote: > No absolutely not. Teflon tape is not fuel compatible. -- Mark Jones (N886MJ) Waukesha, WI USA mailto:flykr2s@execpc.com Visit my KR-2S CorvAIRCRAFT web site at http://sites.netscape.net/flykr2s/homepage ------------------------------ Date: Wed, 12 Apr 2000 09:38:31 -0400 (EDT) To: krnet@mailinglists.org From: Jeff Scott Subject: Re: KR> Re Fuel Pump Dilemma Message-ID: <382975323.955546711614.JavaMail.root@web128-wra.mail.com> Orma is correct according to the FARs. Pay attention to them as they really are more than government red tape to make plane maintenance more difficult. Others have also mentioned that Telflon tape tends to shed little shreds of tape when the fittings are disconnected and reconnected. It isn't a matter of compatability with fuels. "Fuel Lube" is highly recommended. I have also used "Rector Seal"(TM), which is a non hardening plumbing sealant that is compatable with fuels and is available at most good plumbing stores. My first choice would be the "fuel lube" product. BTW, if some that aren't building a fuel system yet are confused by the discussion, this is pertaining to sealant to be used on pipe threads and not the threads of the nuts on a flared fitting. :o) Jeff Scott ------Original Message------ From: Mark Jones Sent: April 12, 2000 4:46:23 AM GMT Subject: Re: KR> Re Fuel Pump Dilemma Hi Guys, I was in contact with Nibco Valve Company and was discussing their 1/4 & 3/8 ball valves as a fuel shut off valve. Their teflon seated ball valves are fuel rated. Why would teflon tape not be compatible? "w.g. kirkland" wrote: > No absolutely not. Teflon tape is not fuel compatible. -- Mark Jones (N886MJ) Waukesha, WI USA mailto:flykr2s@execpc.com Visit my KR-2S CorvAIRCRAFT web site at http://sites.netscape.net/flykr2s/homepage --------------------------------------------------------------------- To unsubscribe, e-mail: krnet-unsubscribe@mailinglists.org For additional commands, e-mail: krnet-help@mailinglists.org ------------------------------ Date: Tue, 11 Apr 2000 17:08:00 -0400 To: KR-net users group From: Tom Crawford Subject: Back from S&F Message-ID: <38F39430.2DB2@atlantic.net> Just back from Sun and Fun. Saw three KR's- Dave Blucher from Orlando, a guy from Tampa with a very nice retract/VW bird with a total of 6 hours on it. 850lbs. empty, and for sale; and a red/ white Sub that was at the Gathering- Think the guy's name is Thomas. Jeanette wasn't there, I heard her mother's sick. Virgil Salisbury was running the booth. I had to cut out early this AM, so I missed the Forum- (Sorry Bobby), and the dinner. I did make it to Steve and Linda's party, good food and company- Thanks Steve! This year it was overun with Sonex people. Only a couple KR netters. Overall, it was a lot of the same, but still a good time and great weather. -- Tom Crawford Gainesville, FL N262TC Mailto:toys@atlantic.net http://www.tomshardwoodtoys.com ------------------------------ Date: Tue, 11 Apr 2000 14:55:49 -0700 From: Mike Mims CC: KR-net users group Subject: Re: KR> Back from S&F Message-ID: <38F39F65.77285048@home.com> > Tom Crawford wrote: > >> a guy from Tampa with a very nice retract/VW bird with a total of 6 >> hours on it. 850lbs. empty, > Man how is that even possible? Lead shielding on the cockpit floor? Glad to hear S&F was Sunny and Fun! :o) -- __________________ Micheal Mims Aliso Viejo Ca ^^^^^^^^^^^^^^^^^^ ........| .......-^- ....-/_____\- ...(O\__o__/O) ...[#]oxxxo[#] -----Y2K Bug--- Yes I drive one! ------------------------------ Date: Tue, 11 Apr 2000 14:58:33 -0700 From: Mike Mims CC: KR-net users group Subject: Inventory Message-ID: <38F3A009.80D90FEA@home.com> I just got back from the airport. It has been a while since I have been there! Anyway I took a good inventory of what is left to do on the Pig to get her in the air. To tell you the truth there just isn't that much left. Anyway I hope to get back to work on her again this weekend. In basic form it could be done by this years gathering but that might be pushing it. We will see. -- __________________ Micheal Mims Aliso Viejo Ca ^^^^^^^^^^^^^^^^^^ ........| .......-^- ....-/_____\- ...(O\__o__/O) ...[#]oxxxo[#] -----Y2K Bug--- Yes I drive one! ------------------------------ Date: Wed, 12 Apr 2000 08:44:06 EDT To: krnet@mailinglists.org From: AviationMech@aol.com Subject: Teflon Tape and fuel systems Message-ID: <9b.38e12d8.2625c996@aol.com> Since the discussion on teflon tape has lingered for days I can no longer resist making a comment. Certified aircraft are built to a standard set out in Title 14 of the Code of Federal Regulations, more commonly known as the FAR's. Part 21 covers the Certification Procedures. The book is thick and boreing, but It also allows us to build and fly experimental aircraft, and thats the best part. Over the years another book emerged which has a lot good informatioon about how aircraft should be maintained its called Acceptable Methods Technniques and Practices, Aircraft Inspection and Repair. A&P mechanics and Inspectors MUST perform their work in accordance with this or other acceptable or approved data. My personal opinion is that even though we don't have to follow as meny rules as the certified aircraft, we should look at the book and see what it says about the task at hand. The opinions of others are necessiary and valuable. Without them most of us would not have built an aircraft or attempt it. "What He Said" is not always 100% accurate. So, from the book, AC 43.13-1B, Section 2. Fuel Systems Paragraph 8-3 Fuel System Precautions, Item (f) "Do not use Teflon tape on any fuel lines to avoid getting the tape between the flair and fitting. which can cause fluid leaks." Thats all this books says. Others have found pieces of teflon tape blocking components such fuel jets. PS teflon tape is good in the right place Orma FAA A&P with Inspection Authorization aviationmech@aol.com http:/members.aol.com/aviationmech Orma FAA A&P with Inspection Authorization aviationmech@aol.com http:/members.aol.com/aviationmech ------------------------------ End of krnet Digest ***********************************