From: krnet-bounces+johnbou=speakeasy.net@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 347, Issue 208 Date: 5/24/2005 8:10:21 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. R?f. : KR> geer mods. (Serge VIDAL) 2. R?f. : Re: KR> Drawing of elevator bellcrank (Serge VIDAL) 3. Fuel gauge mystery (Serge VIDAL) 4. Re: Fuel gauge mystery (flykr2s@wi.rr.com) 5. Re: Fuel gauge mystery (VIRGIL N SALISBURY) 6. R?f. : Re: KR> Fuel gauge mystery (Serge VIDAL) 7. R?f. : Re: KR> Fuel gauge mystery (Serge VIDAL) 8. Re: R?f. : Re: KR> Fuel gauge mystery (VIRGIL N SALISBURY) 9. Re: Fuel gauge mystery (Donald Reid) 10. R?f. : Re: KR> Fuel gauge mystery (Serge VIDAL) 11. EBay listing for Ed Hibbard's KR2 (John Bouyea) 12. WAF application? (Jerry Morris) 13. Re: WAF application? (Mark Langford) 14. R?f. : Re: KR> WAF application? (Serge VIDAL) 15. Re: WAF application? (JSMONDAY@aol.com) 16. Re: R?f. : Re: KR> WAF application? (Mark Langford) 17. Re: I flew N56ML... (Dene Collett (SA)) 18. Re: WAF application? (Steve Eberhart) 19. Re: WAF application? (Donald Reid) 20. air speed indicators? (Mark Langford) 21. Fuel gauge mystery (JIM VANCE) 22. Re: my first flight in N56ML report (Rich Seifert) 23. airspeed indicator calibration...not good! (Mark Langford) ---------------------------------------------------------------------- Message: 1 Date: Tue, 24 May 2005 10:01:01 +0200 From: Serge VIDAL Subject: R?f. : KR> geer mods. To: KRnet Message-ID: Content-Type: text/plain; charset="iso-8859-1" Mine are pushed forward about 100mm. The gear legs attach point are in fact inside the fuselage, not the stubwing. They are held to the main spar by L-shaped brackets. The brackets are made of cast aluminum, although this is not the best idea. Without that setting, the aircraft would be much, muchmore difficult to handle, especially considering the relatively narrow undercarriage. Serge Vidal KR2 "Kilimanjaro Cloud" Paris, France "haroldwoods" Envoyé par : krnet-bounces@mylist.net 2005-05-24 00:51 Veuillez répondre à KRnet Remis le : 2005-05-24 00:59 Pour : cc : (ccc : Serge VIDAL/DNSA/SAGEM) Objet : KR> geer mods. Hi Netters, Have a problem with weight and balance and would like to move your wheels forwards( or backwards) ? A friend had to move his wheels 4 inches forwards. He used a 3/8" bar , the same width as the gear leg. This was bolted to the place on the gear leg where the axel usually sat.In his case it pointed forward, parallel to the ground. He moved the axel forward 4 inches to this new location.His ground handling problem was solved but it did look a little peculiar. I guess that you could do this forward, backward or if you required more ground clearance, straight down. It proved strong enough. Regards Harold Woods Orillia, ON. Canada haroldwoods@rogers.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: 2 Date: Tue, 24 May 2005 10:03:11 +0200 From: Serge VIDAL Subject: R?f. : Re: KR> Drawing of elevator bellcrank To: KRnet Message-ID: Content-Type: text/plain; charset="iso-8859-1" Aha! I did not spot that! Thanks a lot, that solves the problem. Serge Vidal KR2 "Kilimanjaro Cloud" Paris, France Mikensandystff@aol.com Envoyé par : krnet-bounces@mylist.net 2005-05-24 02:07 Veuillez répondre à KRnet Remis le : 2005-05-24 02:08 Pour : krnet@mylist.net cc : (ccc : Serge VIDAL/DNSA/SAGEM) Objet : Re: KR> Drawing of elevator bellcrank If you are building a kr2 and not a kr2s, according to my manual on page 46, drawing no. 44 , the hinge arm (elevator bellcrank)" is the same as tail wheel arm ". I'm back to building and having the time of my life! _______________________________________ 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: 3 Date: Tue, 24 May 2005 10:42:27 +0200 From: Serge VIDAL Subject: KR> Fuel gauge mystery To: KRnet Message-ID: Content-Type: text/plain; charset="us-ascii" On my KR2, the fuel gauge is a plain and simple sight gauge (clear plastic tubing linked to the top and bottom of the tank). One mystery I was never able to solve is that the gauge has a lag. When the tank is amost full, it takes forever before the level drops, then it suddenly drops when the tank is about half full. I tried to increase the line diameter to an ID of 6.35 mm (1/4"), to no avail. Do you think that a bend-down on the top tube could explain that? The only other explanation I could find would be that the top connexion to the tank would be clogged. Serge Vidal KR2 "Kilimanjaro Cloud" Paris, France ------------------------------ Message: 4 Date: Tue, 24 May 2005 05:46:26 -0500 From: flykr2s@wi.rr.com Subject: Re: KR> Fuel gauge mystery To: KRnet Message-ID: <6a2bc06a0e2f.6a0e2f6a2bc0@rdc-kc.rr.com> Content-Type: text/plain; charset=us-ascii Do you have a header tank? If so, the only time you get a true reading is in absolute level flight and then only if the top of your sight gauge is level to or above the top level of the fuel tank. If you are sitting on the ground, your header tank will be above your sight gauge due to the nose up angle of the plane. This also applies in flight if you are flying in an nose up attitude, your sight gauge will be lower than your tank. This scenario will give you a false sense of a fuller tank and when the fuel level drops to the level of the sight gauge then you will notice the sudden drop as you speak of. Mark Jones (N886MJ) Wales, WI Visit my KR-2S CorvAIRCRAFT Site at: http://mywebpage.netscape.com/n886mj ----- Original Message ----- From: Serge VIDAL Date: Tuesday, May 24, 2005 3:42 am Subject: KR> Fuel gauge mystery > On my KR2, the fuel gauge is a plain and simple sight gauge (clear > plastic > tubing linked to the top and bottom of the tank). > > One mystery I was never able to solve is that the gauge has a lag. > When > the tank is amost full, it takes forever before the level drops, > then it > suddenly drops when the tank is about half full. > > I tried to increase the line diameter to an ID of 6.35 mm (1/4"), > to no > avail. > > Do you think that a bend-down on the top tube could explain that? > > The only other explanation I could find would be that the top > connexion to > the tank would be clogged. > > Serge Vidal > KR2 "Kilimanjaro Cloud" > Paris, France > _______________________________________ > 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: Tue, 24 May 2005 06:59:50 -0400 From: VIRGIL N SALISBURY Subject: Re: KR> Fuel gauge mystery To: krnet@mylist.net Message-ID: <20050524.070008.3512.0.virgnvs@juno.com> Content-Type: text/plain; charset=us-ascii If you have a "T" at the bottom, feeding the carb and bottom of the sight gauge, it WILL cause problems, Virg On Tue, 24 May 2005 10:42:27 +0200 Serge VIDAL writes: > On my KR2, the fuel gauge is a plain and simple sight gauge (clear > plastic > tubing linked to the top and bottom of the tank). > > One mystery I was never able to solve is that the gauge has a lag. > When > the tank is amost full, it takes forever before the level drops, > then it > suddenly drops when the tank is about half full. > > I tried to increase the line diameter to an ID of 6.35 mm (1/4"), to > no > avail. > > Do you think that a bend-down on the top tube could explain that? > > The only other explanation I could find would be that the top > connexion to > the tank would be clogged. > > Serge Vidal > KR2 "Kilimanjaro Cloud" > Paris, France > _______________________________________ > 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 > > Virgil N. Salisbury - AMSOIL www.lubedealer.com/salisbury Miami ,Fl ------------------------------ Message: 6 Date: Tue, 24 May 2005 13:17:11 +0200 From: Serge VIDAL Subject: R?f. : Re: KR> Fuel gauge mystery To: KRnet Message-ID: Content-Type: text/plain; charset="iso-8859-1" Yes, I have a header tank, and I'm referring to something that happens in flight or on ground with the aircraft being level. I understand the gravity issues pretty well, although I never thought of checking at which level the top of the gauge is rigged. The reason why I ask is because I'm clueless here; the system, in theory, is very simple and could not fail. And yet... The disturbing factor is that it also happens in reverse: there is a lag when I fill the tank. I will check the location of the gauge pick-up (although I'm fairly sure it is very high), but the more I think of it, the more I'm convinced that the top line must be not open enough, either because it is clogged, or because the tube bends and closes itself when I put the instrument panel in place. I can check that by blowing the tube from the outside. I will try nthat next time I get a chance to see my aircraft. Serge flykr2s@wi.rr.com Envoyé par : krnet-bounces@mylist.net 2005-05-24 12:46 Veuillez répondre à KRnet Remis le : 2005-05-24 12:46 Pour : KRnet cc : (ccc : Serge VIDAL/DNSA/SAGEM) Objet : Re: KR> Fuel gauge mystery Do you have a header tank? If so, the only time you get a true reading is in absolute level flight and then only if the top of your sight gauge is level to or above the top level of the fuel tank. If you are sitting on the ground, your header tank will be above your sight gauge due to the nose up angle of the plane. This also applies in flight if you are flying in an nose up attitude, your sight gauge will be lower than your tank. This scenario will give you a false sense of a fuller tank and when the fuel level drops to the level of the sight gauge then you will notice the sudden drop as you speak of. Mark Jones (N886MJ) Wales, WI Visit my KR-2S CorvAIRCRAFT Site at: http://mywebpage.netscape.com/n886mj ----- Original Message ----- From: Serge VIDAL Date: Tuesday, May 24, 2005 3:42 am Subject: KR> Fuel gauge mystery > On my KR2, the fuel gauge is a plain and simple sight gauge (clear > plastic > tubing linked to the top and bottom of the tank). > > One mystery I was never able to solve is that the gauge has a lag. > When > the tank is amost full, it takes forever before the level drops, > then it > suddenly drops when the tank is about half full. > > I tried to increase the line diameter to an ID of 6.35 mm (1/4"), > to no > avail. > > Do you think that a bend-down on the top tube could explain that? > > The only other explanation I could find would be that the top > connexion to > the tank would be clogged. > > Serge Vidal > KR2 "Kilimanjaro Cloud" > Paris, France > _______________________________________ > 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 > _______________________________________ 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: 7 Date: Tue, 24 May 2005 13:19:55 +0200 From: Serge VIDAL Subject: R?f. : Re: KR> Fuel gauge mystery To: KRnet Message-ID: Content-Type: text/plain; charset="iso-8859-1" That's the case, Virg. What kind of probems do you foresee? Serge VIRGIL N SALISBURY Envoyé par : krnet-bounces@mylist.net 2005-05-24 12:59 Veuillez répondre à KRnet Remis le : 2005-05-24 13:03 Pour : krnet@mylist.net cc : (ccc : Serge VIDAL/DNSA/SAGEM) Objet : Re: KR> Fuel gauge mystery If you have a "T" at the bottom, feeding the carb and bottom of the sight gauge, it WILL cause problems, Virg On Tue, 24 May 2005 10:42:27 +0200 Serge VIDAL writes: > On my KR2, the fuel gauge is a plain and simple sight gauge (clear > plastic > tubing linked to the top and bottom of the tank). > > One mystery I was never able to solve is that the gauge has a lag. > When > the tank is amost full, it takes forever before the level drops, > then it > suddenly drops when the tank is about half full. > > I tried to increase the line diameter to an ID of 6.35 mm (1/4"), to > no > avail. > > Do you think that a bend-down on the top tube could explain that? > > The only other explanation I could find would be that the top > connexion to > the tank would be clogged. > > Serge Vidal > KR2 "Kilimanjaro Cloud" > Paris, France > _______________________________________ > 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 > > Virgil N. Salisbury - AMSOIL www.lubedealer.com/salisbury Miami ,Fl _______________________________________ 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: 8 Date: Tue, 24 May 2005 07:35:29 -0400 From: VIRGIL N SALISBURY Subject: Re: R?f. : Re: KR> Fuel gauge mystery To: krnet@mylist.net Message-ID: <20050524.073554.3512.1.virgnvs@juno.com> Content-Type: text/plain; charset=iso-8859-1 Head pressure will feed the fuel until the pressuer in the sight gauge becomes so small that you will draw fuel fron the gauge. Your engine may sputter and stop because of the air being drawn in from the sight gauge, Virg Put separate feed to each!! On Tue, 24 May 2005 13:19:55 +0200 Serge VIDAL writes: > That's the case, Virg. What kind of probems do you foresee? > > Serge > > > > > > VIRGIL N SALISBURY > > Envoyé par : krnet-bounces@mylist.net > 2005-05-24 12:59 > Veuillez répondre à KRnet > Remis le : 2005-05-24 13:03 > > > Pour : krnet@mylist.net > cc : (ccc : Serge VIDAL/DNSA/SAGEM) > Objet : Re: KR> Fuel gauge mystery > > > > If you have a "T" at the bottom, feeding the carb and bottom > of > the sight gauge, > it WILL cause problems, Virg > > On Tue, 24 May 2005 10:42:27 +0200 Serge VIDAL > > writes: > > On my KR2, the fuel gauge is a plain and simple sight gauge (clear > > > plastic > > tubing linked to the top and bottom of the tank). > > > > One mystery I was never able to solve is that the gauge has a lag. > > > When > > the tank is amost full, it takes forever before the level drops, > > then it > > suddenly drops when the tank is about half full. > > > > I tried to increase the line diameter to an ID of 6.35 mm (1/4"), > to > > no > > avail. > > > > Do you think that a bend-down on the top tube could explain > that? > > > > The only other explanation I could find would be that the top > > connexion to > > the tank would be clogged. > > > > Serge Vidal > > KR2 "Kilimanjaro Cloud" > > Paris, France > > _______________________________________ > > 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 > > > > > > > Virgil N. Salisbury - AMSOIL > www.lubedealer.com/salisbury > Miami ,Fl > > _______________________________________ > 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 > > > _______________________________________ > 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 > > Virgil N. Salisbury - AMSOIL www.lubedealer.com/salisbury Miami ,Fl ------------------------------ Message: 9 Date: Tue, 24 May 2005 08:21:50 -0400 From: Donald Reid Subject: Re: KR> Fuel gauge mystery To: KRnet Message-ID: <6.1.0.6.2.20050524081600.01b39d20@mail.peoplepc.com> Content-Type: text/plain; charset="us-ascii"; format=flowed At 04:42 AM 5/24/2005, you wrote: >On my KR2, the fuel gauge is a plain and simple sight gauge (clear plastic >tubing linked to the top and bottom of the tank). > >One mystery I was never able to solve is that the gauge has a lag. When >the tank is amost full, it takes forever before the level drops, then it >suddenly drops when the tank is about half full. If the top leg of the sight glass has a segment that droops down, it can get fuel in it which forms a loop seal, just like the loop seal in a toilet or kitchen sink. You can also have problems if the lower leg of the sight glass and the engine supply use a common tap into the tank. This is not a common problem but it can happen depending on the flow characteristics in your lines. Don Reid - donreid "at" peoplepc.com Bumpass, Va Visit my web sites at: AeroFoil, a 2-D Airfoil Design And Analysis Computer Program: http://aerofoilengineering.com KR2XL construction: http://aerofoilengineering.com/KR/KR2XL.htm Aviation Surplus: http://aerofoilengineering.com/PartsListing/Airparts.htm EAA Chapter 231: http://eaa231.org Ultralights: http://usua250.org VA EAA State Fly-in: http://vaeaa.org ------------------------------ Message: 10 Date: Tue, 24 May 2005 15:14:57 +0200 From: Serge VIDAL Subject: R?f. : Re: KR> Fuel gauge mystery To: KRnet Message-ID: Content-Type: text/plain; charset="iso-8859-1" Agree about the loop seal, but the sight gauge should still empty to the bottom of the tank! I think I have a lead. The top connection is also where the wing tanks vent lines are rigged. Motion in the header tank when full would fill these lines (overflow). Maybe the problem is that when these lines are full (as they most of the time are), they flood the sight gauge, which is lower? Oh, well, I will check again when I get a chance. That can't be too complex, it's ony gravity, after all. Serge Donald Reid Envoyé par : krnet-bounces@mylist.net 2005-05-24 14:21 Veuillez répondre à KRnet Remis le : 2005-05-24 14:22 Pour : KRnet cc : (ccc : Serge VIDAL/DNSA/SAGEM) Objet : Re: KR> Fuel gauge mystery At 04:42 AM 5/24/2005, you wrote: >On my KR2, the fuel gauge is a plain and simple sight gauge (clear plastic >tubing linked to the top and bottom of the tank). > >One mystery I was never able to solve is that the gauge has a lag. When >the tank is amost full, it takes forever before the level drops, then it >suddenly drops when the tank is about half full. If the top leg of the sight glass has a segment that droops down, it can get fuel in it which forms a loop seal, just like the loop seal in a toilet or kitchen sink. You can also have problems if the lower leg of the sight glass and the engine supply use a common tap into the tank. This is not a common problem but it can happen depending on the flow characteristics in your lines. Don Reid - donreid "at" peoplepc.com Bumpass, Va Visit my web sites at: AeroFoil, a 2-D Airfoil Design And Analysis Computer Program: http://aerofoilengineering.com KR2XL construction: http://aerofoilengineering.com/KR/KR2XL.htm Aviation Surplus: http://aerofoilengineering.com/PartsListing/Airparts.htm EAA Chapter 231: http://eaa231.org Ultralights: http://usua250.org VA EAA State Fly-in: http://vaeaa.org _______________________________________ 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: 11 Date: Tue, 24 May 2005 08:35:26 -0700 From: "John Bouyea" Subject: KR> EBay listing for Ed Hibbard's KR2 To: "'KRNet'" Message-ID: <000001c56076$358f7a50$a800a8c0@dell4600> Content-Type: text/plain; charset="us-ascii" http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem &category=63679&item=4552212251&rd=1&ssPageName=WDVW You can see more details @ http://www.bouyea.net/classifieds/index.htm John Bouyea KR2 - hanging the engine accessories KR2S - boat hanging from the rafters john_0310@bouyea.net www.bouyea.net ------------------------------ Message: 12 Date: Tue, 24 May 2005 09:55:53 -0600 From: "Jerry Morris" Subject: KR> WAF application? To: krnet@mylist.net Message-ID: <42934E89.6060007@nsc.com> Content-Type: text/plain; charset=iso-8859-1; format=flowed Ok i know the stub spar and main spar have like a 2" gap between (wood to wood). but would the strength be affected by butting the wood spar ends and moving the WAF outboard just enough to put the attach bolt thru the outer spar with a anti-crush spacer in the outboard spar? my first thought is it would be stronger(not that it needs to be). but the disscussion on the lightening hole size was very informitive and not something i would have thought of. thanks jerry morris kr1s boat. ------------------------------ Message: 13 Date: Tue, 24 May 2005 11:31:20 -0500 From: "Mark Langford" Subject: Re: KR> WAF application? To: "KRnet" Message-ID: <010901c5607e$04c93c50$5e0ca58c@net.tbe.com> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Jerry Morris wrote: > but would the strength be affected by butting the wood spar ends and > moving the > WAF outboard just enough to put the attach bolt thru the outer spar with > a anti-crush spacer in the outboard That's about how my next one will be. I've seen that in an old Newsletter, and Steve Trentman with the turbine built his that way. It looked a lot better, at least, and with proper spacers like you mentioned, would reduce parts count and put the joints in double shear rather than single shear. Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net ------------------------------ Message: 14 Date: Tue, 24 May 2005 18:45:38 +0200 From: Serge VIDAL Subject: R?f. : Re: KR> WAF application? To: KRnet Message-ID: Content-Type: text/plain; charset="iso-8859-1" Mark, I'm not sure I understand. How would that reduce the parts count? What is the function of the anti-crush spacer? Serge Vidal "Mark Langford" Envoyé par : krnet-bounces@mylist.net 2005-05-24 18:31 Veuillez répondre à KRnet Remis le : 2005-05-24 18:31 Pour : "KRnet" cc : (ccc : Serge VIDAL/DNSA/SAGEM) Objet : Re: KR> WAF application? Jerry Morris wrote: > but would the strength be affected by butting the wood spar ends and > moving the > WAF outboard just enough to put the attach bolt thru the outer spar with > a anti-crush spacer in the outboard That's about how my next one will be. I've seen that in an old Newsletter, and Steve Trentman with the turbine built his that way. It looked a lot better, at least, and with proper spacers like you mentioned, would reduce parts count and put the joints in double shear rather than single shear. Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.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: 15 Date: Tue, 24 May 2005 12:53:48 EDT From: JSMONDAY@aol.com Subject: Re: KR> WAF application? To: krnet@mylist.net Message-ID: Content-Type: text/plain; charset="US-ASCII" I am confused! I am about to do my WAFs and can someone show me a picture of what they are talking about... someone mentioned about drilling the holes larger in the spars for Spacers as well between the two waf's so there would be less crush on the spars. Don't know about that idea, is that what you are refering too? John Monday KR2S Laguna Beach, CA In a message dated 5/24/2005 9:31:49 AM Pacific Standard Time, n56ml@hiwaay.net writes: Jerry Morris wrote: > but would the strength be affected by butting the wood spar ends and > moving the > WAF outboard just enough to put the attach bolt thru the outer spar with > a anti-crush spacer in the outboard That's about how my next one will be. I've seen that in an old Newsletter, and Steve Trentman with the turbine built his that way. It looked a lot better, at least, and with proper spacers like you mentioned, would reduce parts count and put the joints in double shear rather than single shear. Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net ------------------------------ Message: 16 Date: Tue, 24 May 2005 12:29:21 -0500 From: "Mark Langford" Subject: Re: R?f. : Re: KR> WAF application? To: "KRnet" Message-ID: <012b01c56086$1f8262d0$5e0ca58c@net.tbe.com> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Imagine doing it by the plans, and going ahead and mounting the WAFs to the ends of the center spars. Now just slide the outer spars right up in contact with the center spars before you intsall the WAFs. I'd bevel the ends just to make them mate nicely. Then just put the WAFs in place and start drilling holes (using a jig, or course). After the two big 3/8" holes are drilled through the wood (because they are no longer out in space), remove the WAFs and open them up enough for some 4130 tubing sleeves the thickness of the spars and T-88 them in place. That keeps the wood from crushing when you torque the WAF main attach bolts. It reduces parts count by having one bolt all the way through, rather than two bolts (one on forward side, one on aft side). That's where the single/double shear thing comes in. There might be a better variation of the method....but the above description should give you the idea of what Jerry is asking, I think. I'm not saying anybody should do it this way, but I'll study it closer and probably build my next one in a similar manner... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net ------------------------------ Message: 17 Date: Tue, 24 May 2005 19:54:16 +0200 From: "Dene Collett (SA)" Subject: Re: KR> I flew N56ML... To: "KRnet" Message-ID: <000001c56089$fb61bdc0$eba2fea9@dene> Content-Type: text/plain; charset="iso-8859-1" A HUGE CONGRATULATIONS to you from the other side of the big pond. Fantastic news!! Regards Dene Collett South Africa KR2SRT builder mailto: dene.collett@telkomsa.net www.whisperaircraft.co.za ----- Original Message ----- From: Mark Langford To: KRnet Sent: Sunday, May 22, 2005 22:18 Subject: KR> I flew N56ML... > ...and both plane and pilot landed intact ------------------------------ Message: 18 Date: Tue, 24 May 2005 13:35:11 -0500 From: Steve Eberhart Subject: KR> Re: WAF application? To: KRnet Message-ID: <429373DF.6010409@newtech.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Mark Langford wrote: [snip] > > I'm not saying anybody should do it this way, but I'll study it closer and > probably build my next one in a similar manner... Mark, no need to worry. RV-10 spars come already assembled and anodized. The first two customer built RV-10s have flown after only a year and a half construction time. Oops, should have said assembly time. Steve Eberhart Loving life on the dark side Pretty sure the Millennium Falcon was made out of aluminum ------------------------------ Message: 19 Date: Tue, 24 May 2005 19:17:38 -0400 From: Donald Reid Subject: Re: KR> WAF application? To: KRnet Message-ID: <6.1.0.6.2.20050524191058.01a10ec0@mail.peoplepc.com> Content-Type: text/plain; charset="us-ascii"; format=flowed At 11:55 AM 5/24/2005, you wrote: >Ok i know the stub spar and main spar have like a 2" gap between (wood >to wood). > >but would the strength be affected by butting the wood spar ends and >moving the >WAF outboard just enough to put the attach bolt thru the outer spar with >a anti-crush spacer in the outboard >spar? It could be done that way, but not with the existing fittings. The spacing would need to be changed. The one other thing to consider it that the two pieces of spar should not be butted hard together. There should be enough gap to ensure no wood-to-wood contact when the spar is loaded. That condition would affect the stresses in the wood around the bolts. Best option, keep what you have. Next option is to do a re-design of the fittings. Don Reid - donreid "at" peoplepc.com Bumpass, Va Visit my web sites at: AeroFoil, a 2-D Airfoil Design And Analysis Computer Program: http://aerofoilengineering.com KR2XL construction: http://aerofoilengineering.com/KR/KR2XL.htm Aviation Surplus: http://aerofoilengineering.com/PartsListing/Airparts.htm EAA Chapter 231: http://eaa231.org Ultralights: http://usua250.org VA EAA State Fly-in: http://vaeaa.org ------------------------------ Message: 20 Date: Tue, 24 May 2005 20:27:10 -0500 From: "Mark Langford" Subject: KR> air speed indicators? To: "KRnet" Message-ID: <04db01c560c8$df4ba710$1202a8c0@1700xp> Content-Type: text/plain; charset="iso-8859-1" This is somewhat off topic, so please send replies direct to me to keep from making people crazy. I will synthesize the answers and report back, so nobody will miss anything. I calibrated my airspeed indicator tonight using a manometer (I'll show you how later). It's dirt simple, and told me that my ASI reads 52% of the speed that it should read! So if I'd actually believed it, I'd have tried to land at 125 mph rather than 65 mph! I'm pretty tired of hearing stories about how you don't even need an ASI to land an airplane, so just save it for your grandchildren. So...I need a new one. Does anybody have any reliability info on the various brands? This one's the cheapo UMA, non TSO'd, that I bought brand new several years ago. I feel pretty sure it's futile to try to swap it, but I might check, just for kicks. I'm not sure I want another UMA though, even a TSO'd one. Anybody have any recommendations? I've seen the offerings at AS&S and Wicks, and will order one tomorrow morning. Send replies direct to me... Thanks, Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net -------------------------------------------------------------- ------------------------------ Message: 21 Date: Tue, 24 May 2005 20:29:00 -0500 From: "JIM VANCE" Subject: KR> Fuel gauge mystery To: "krnet" Message-ID: <005001c560c9$21c85fc0$0900a8c0@oemcomputer> Content-Type: text/plain; charset="iso-8859-1" Serge, I installed sight tubes on my Renegade and on my KR. The tubes from the tank to the sight gauge must be fairly straight. If they have a loop in them, there will be a siphon effect that will make it hang up until the head gets great enough to overcome it. It took me quite a while to get it to work right. It's especially important that the top of the gauge is vented to above the fuel line in the tank. Any pressure differential will make for an error. Jim Vance in Kansas, USA Vance@ClaflinWildcats.com ------------------------------ Message: 22 Date: Tue, 24 May 2005 19:24:21 -0700 From: "Rich Seifert" Subject: Re: KR> my first flight in N56ML report To: "KRnet" Message-ID: <00ee01c560d0$dcb8f4a0$6501a8c0@richard> Content-Type: text/plain; charset="iso-8859-1" You Did GREAT Mark! My first flight was unplanned 2 minutes earier and ended in a crash costing me a gear leg, cowling, and a prop. It just gets better from there on. Don't get discouraged. ----- Original Message ----- From: "Kevin Farley" To: "KRnet" Sent: Sunday, May 22, 2005 8:40 PM Subject: Re: KR> my first flight in N56ML report > Regardless of how "pretty" it might have been... You did it! > > Congrats Mark. > > On May 22, 2005, at 22:26, Mark Langford wrote: > > I'm not sure whether to call it a flight report or a narrow escape, but > it's at > http://home.hiwaay.net/~langford/first_flights/second.html .... > > Mark Langford, Huntsville, Alabama > see KR2S project N56ML at http://home.hiwaay.net/~langford > email to N56ML "at" hiwaay.net > -------------------------------------------------------------- > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > > > > ------------------------------ Message: 23 Date: Tue, 24 May 2005 22:14:03 -0500 From: "Mark Langford" Subject: KR> airspeed indicator calibration...not good! To: "KRnet" Message-ID: <053401c560d7$cf95e6f0$1202a8c0@1700xp> Content-Type: text/plain; charset="iso-8859-1" See http://home.hiwaay.net/~langford/airspeed_calibration/ for details. I'm also swapping out the static system, so I think I'll be in business by this weekend... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net -------------------------------------------------------------- ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 347, Issue 208 *************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================