From: KR-net users group digest[SMTP:kr-net@telelists.com] Sent: Friday, August 13, 1999 12:27 AM To: kr-net digest recipients Subject: kr-net digest: August 12, 1999 KR-net users group Digest for Thursday, August 12, 1999. 1. Re: KR Gathering and Spar Question 2. Re: Wood Grain and Bolted Joints (Very Long) 3. SAA web site 4. Re: Wood Grain and Bolted Joints (Very Long) 5. D/FW area builders 6. nico press 7. Re: KR Gathering and Spar Question 8. Re: nico press 9. Re: nico press 10. Re: nico press 11. Re: D/FW area builders 12. KRNet Membership 13. Re: D/FW area builders 14. Re: radio license 15. Re: More Superfil Questions 16. Re: 2180 Less Reliable? 17. Re: Eng. timing 18. Re: Question. 19. Re: HAPI Magnum 75 20. Re: HAPI Magnum 75 (dune buggy) 21. Re: Melting Lead Aileron Counterweights... 22. Re: 2180 Less Reliable? ---------------------------------------------------------------------- Subject: Re: KR Gathering and Spar Question From: Mark Jones Date: Thu, 12 Aug 1999 06:55:37 -0500 X-Message-Number: 1 "T.Flemming" wrote: > Do the spars need to be inspected before closing them up with plywood > by anyone? Trent, It is always best to have any area that is going to be closed permanently inspected by someone other than yourself. Anytime I get to that point, I call my EAA Tech Counselor and have him come over and do an inspection. Plus the FAA loves to see that this has been done by an EAA Tech Counselor. Be sure to include the inspections in your construction logbook. Mark Jones (N886MJ) Waukesha, WI flykr2s@execpc.com http://sites.netscape.net/flykr2s/homepage ---------------------------------------------------------------------- Subject: Re: Wood Grain and Bolted Joints (Very Long) From: Donald Reid Date: Thu, 12 Aug 1999 08:34:57 -0400 X-Message-Number: 2 Mike Mims wrote: > If some of you guys out there are doing the math trying to figure out > how RR came up with 8 g's or so for the max load limit, Don't forget > that the weight of the wings shouldn't really be included in your load > figures. This is a true statement, the wing supports itself and the weight of the wing does not contribute to the bending moment of the wing. > The weight of the pilots kinda figures in to the equation weirdly too > because they are not really sitting in the fuselage but rather ON THE > SPARs themselves. I am not sure where you got this one! In, on, or around the spar doesn't make any difference. The mass of everything that is not the wing needs to be supported by the wing. -- 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 ---------------------------------------------------------------------- Subject: SAA web site From: David Moore Date: Thu, 12 Aug 1999 11:10:06 -0700 X-Message-Number: 3 KRNetters, I know it is not Friday but, here is an interesting web site http://www.sportaviation.org. Paul Poberezny is trying to bring back the grassroots organization SAA (Sport Aviation Association). I got the impression he might not be to happy with the way EAA is going. When I was at S&F in April Paul was taking applications from anyone interested in grassroots aviation to join. The price was right (free for the rest of 1999) so I signed up. Dave Moore David Moore mailto:dgmoore1@gte.net Henderson, Nevada ---------------------------------------------------------------------- Subject: Re: Wood Grain and Bolted Joints (Very Long) From: Mike Mims Date: Thu, 12 Aug 1999 16:17:08 -0700 X-Message-Number: 4 Donald Reid wrote: > > > I am not sure where you got this one! In, on, or around the spar > doesn't make any difference. The mass of everything that is not the > wing needs to be supported by the wing. Yeah that didn't quite come out right! What I meant was that there for a while the thought was that ALL the supported load (gross weight) was concentrated in the two small areas where the main spar exits the fuselage when in fact it is more evenly distributed because a large percentage of the pilots weight is sitting on the center of the spar and are not really part of the fuselage. Yes, No?? -- zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims Filling and Sanding again! http://www.fortunecity.com/marina/anchor/270/ http://members.home.com/mikemims/ Aliso Viejo CA ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ---------------------------------------------------------------------- Subject: D/FW area builders From: "David McKelvey" Date: Thu, 12 Aug 1999 17:46:58 X-Message-Number: 5 does anyone know of a local resource for epoxy, I'm finding it costs as much to ship as purchase price. ---------------------------------------------------------------------- Subject: nico press From: "David McKelvey" Date: Thu, 12 Aug 1999 17:50:59 X-Message-Number: 6 Has anyone used the Nico press economy model? Does it work on AN cable ends? thanks, dave ---------------------------------------------------------------------- Subject: Re: KR Gathering and Spar Question From: jscott.pilot@juno.com Date: Thu, 12 Aug 1999 19:26:08 -0700 X-Message-Number: 7 On Wed, 11 Aug 1999 22:27:19 -0500 "T.Flemming" writes: >Do the spars need to be inspected before closing them up with plywood >by anyone? The legal part says you only need one inspection by the FAA when the plane is ready to fly. NO other inspections are . It is a good idea to have an EAA tech counselor or someone knowledgeable take a look at your work before you close up anything. The tech counselors are there to help you and are there for you to sound questions against. The tech counselor has no authority to do anything more than to make recommendations to you and to make a record of his visit which goes to the EAA. That record is for you insurance carrier to check against if you are requesting hull insurance for your first flight. It is also simply a good idea. Don't feel like you are "bothering" the tech counselor. As a tech counselor, I learn a great deal from every project I look at which gets passed along to other builders when I see their projects. I have an inspection where we will do a preliminary W&B on a Wittman Tailwind scheduled for Saturday. The more projects I see, the more I learn and it makes me a better tech counselor and builder. 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: nico press From: Mike Mims Date: Thu, 12 Aug 1999 18:47:57 -0700 X-Message-Number: 8 David McKelvey wrote: > > Has anyone used the Nico press economy model? > Does it work on AN cable ends? > Yes it works fine. -- zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims Filling and Sanding again! http://www.fortunecity.com/marina/anchor/270/ http://members.home.com/mikemims/ Aliso Viejo CA ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ---------------------------------------------------------------------- Subject: Re: nico press From: David Moore Date: Thu, 12 Aug 1999 19:38:50 -0700 X-Message-Number: 9 Dave, Back about 1972-73, when hangliding was still new I built a glider out of plans I got from a company called Free Flight. It was a 18' delta with all aluminum tube reinforced at the joints with 1 3/8 wood dowels inside the tube. I used a small nico-press and it worked great. Where I worked I had access to the bigger one (had long handles, like a set of bolt cutters), I found I liked the small press, it allowed me to put the press exactly where I wanted it on the nico. It maybe a little slower but you get to where the tool becomes an extra pair of hands. It holds the nico while you align the cable and thimble. Then holding everything in the right place, tighten down the wing nuts with one hand. I was working alone most of the time, and the big one is faster, but you have to use two hands or a helper to squeeze the handles. Dave Moore At 05:50 PM 8/12/99, you wrote: >Has anyone used the Nico press economy model? >Does it work on AN cable ends? > >thanks, > >dave > >--- >You are currently subscribed to kr-net as: dgmoore1@gte.net >To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > > David Moore mailto:dgmoore1@gte.net Henderson, Nevada ---------------------------------------------------------------------- Subject: Re: nico press From: Mark Jones Date: Thu, 12 Aug 1999 21:36:50 -0500 X-Message-Number: 10 David McKelvey wrote: > Has anyone used the Nico press economy model? > Does it work on AN cable ends? Dave, I used it on all of my sleeves. Best bang for the buck. I did strip the threads on the first one with only four sleeves to press, so I had to buy a second one. By the way, I put two sleeves on each loop. A little extra safety I guess. I saw this tool at Oshkosh for fifteen bucks. Mark Jones (N886MJ) Waukesha, WI flykr2s@execpc.com http://sites.netscape.net/flykr2s/homepage ---------------------------------------------------------------------- Subject: Re: D/FW area builders From: MARVIN MCCOY Date: Fri, 13 Aug 1999 07:34:29 -0700 X-Message-Number: 11 Where are you at???? In Seattle there are plenty of local sources for epoxy. Marvin McCoy Seattle, WA. North end of Boeing field --------------- David McKelvey wrote: > > does anyone know of a local resource for epoxy, I'm finding it costs as > much to ship as purchase price. > > ---------------------------------------------------------------------- Subject: KRNet Membership From: jscott.pilot@juno.com Date: Thu, 12 Aug 1999 21:12:09 -0700 X-Message-Number: 12 For those that take an interest in statistics, this evening I checked the current KRNet membership and we are currently at 419 members. We have been down as far as 365 members after some flame fests a few months ago, but we mostly seem to hover around 420 members with a couple of new subscribers and a couple of unsubscribers per day. I must say that for a group this large, everyone has been on exceptionally good behavior lately. Must be the upcoming KR gathering since many of us will be meeting face to face again. Putting a face and a voice with a name often helps sooth those of us that type in a rougher voice than we have in person. :o) Jeff " Net Mom" Scott 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: D/FW area builders From: Mike Mims Date: Thu, 12 Aug 1999 22:05:44 -0700 X-Message-Number: 13 MARVIN MCCOY wrote: > > Where are you at???? > > David McKelvey wrote: > > > > does anyone know of a local resource for epoxy, I'm finding it costs as much to ship as purchase price.>>> I am willing to bet Dallas / Fort Worth. :o) Has the HAZ MAT fee increased on epoxy? How are you having it shipped and from where? Your the first person to bring this up and I know at least half of these guys had to order their epoxy. -- zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Micheal Mims Filling and Sanding again! http://www.fortunecity.com/marina/anchor/270/ http://members.home.com/mikemims/ Aliso Viejo CA ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ---------------------------------------------------------------------- Subject: Re: radio license From: Ross Youngblood Date: Thu, 12 Aug 1999 22:42:27 -0700 X-Message-Number: 14 Station License is only required for trips outside of the USA. -- Ross Oscar Zuniga wrote: > > Hello again, netters > > I noticed an item on Rick Junkin's flight test pages (checklist) that lists > station license as a checkoff item. Didn't the FCC remove the requirement > for a station license for aircraft VHF comm installations? I do have a > "Restricted Radiotelephone Operator Permit" (FCC Form 753) from back in > 1981, but I don't think either this or the station license are required. > Yes/no? > > Oscar Zuniga > Medford, Oregon > mailto: taildrags@hotmail.com > website at http://www.geocities.com/Pipeline/Dropzone/5610/index.html > > _______________________________________________________________ > Get Free Email and Do More On The Web. Visit http://www.msn.com > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: More Superfil Questions From: Ross Youngblood Date: Mon, 09 Aug 1999 11:57:38 -0700 X-Message-Number: 15 Tobin, You are correct. Mixing ratios by weight is the "correct" way to mix epoxy, but Aeropoxy (what I use) can be mixed 3:1 by VOLUME. It used to be 3.2:1 but they updated it to a 3:1 mix. You will get a more accurate ratio if you mix by weight (I think). However I mixed by volume. -- Ross Tobin Dunham wrote: > > Ok, let me get this straight. Is the ratio of the compounds supposed to be > mixed by weight or by volume? I think Mike Mims said he uses a digital > scale, which means he's using weight for the ratio. I'm a long way from > actually buying any of this stuff, so I honestly don't know which way it's > supposed to be mixed. But the ratio will be different, depending on whether > you're using weight or volume to measure (unless the two parts have the > exact same specific gravity). > > So should I add a digital scale to my list of KR-2 building tools? > > Toby Dunham > Houston, TX > homepage at http://www.geocities.com/CapeCanaveral/Runway/7013 > > _______________________________________________________________ > Get Free Email and Do More On The Web. Visit http://www.msn.com > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: 2180 Less Reliable? From: Ross Youngblood Date: Mon, 09 Aug 1999 11:54:52 -0700 X-Message-Number: 16 Less reliable is probably not the correct perception. More maintence would be more accurate. The 2180 has a stroked crank, and larger heads, more material is machined from an engine case designed for a 1600 cc engine. >From my discussions with Steve Bennett, I got the impression that you would want to do a bit more frequent checks on the 2180 engine than the 1835cc as it is generating more HP, and likely to wear faster. The 2180's that Steve Sells come with a beefed up front bearing which I think is preferrable. For me the difference between the beefy bearing surface and stroker crank, came to about $1000 more than the 1835cc kit, so I went for the cheaper engine. -- Ross Mark Jones wrote: > > Hey Engine Heads, > > I have been planning on using the Great Plains 2180 and have been > following the engine threads. I keep seeing comments that the 2180 is > less reliable than say the 1835. Maybe I missed something in the thread > as to why. Anyway, could someone explain to me why the 2180 is less > reliable. > OK for you 'vair heads, I have started studying up on the Corvair engine > and am beginning to wonder if this is the way to go. I have already > mounted the Great Plains five point mount for the 2180 on my bird. Will > this work on the Corvair engine or could it be modified to accept the > engine? I would like to use this mount since it mates up with the Diehl > nose gear bracket which is also mounted on my bird. Seems the Corvair > can be made air worthy for far less than the Volkswagen. > > Mark Jones (N886MJ) > Waukesha, WI > flykr2s@execpc.com > http://sites.netscape.net/flykr2s/homepage > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: Eng. timing From: Ross Youngblood Date: Mon, 09 Aug 1999 11:48:24 -0700 X-Message-Number: 17 I belive you are supposed to time the distributor with the engine at a specified RPM so that a portion of the mechanical advance is in play. That is how I timed my engine (with the prop off). -- Ross GARYKR2@cs.com wrote: > > Don't forget that the distrubertor has an advance in it . So it has to be set > at 0 degres. If it's not, you'll end up with 50 degres BTDC. The advance is > 25 degrees, same as a mag. > Gary Hinkle Middletown, Pa. > garykr2@cs.com > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: Question. From: Ross Youngblood Date: Mon, 09 Aug 1999 12:00:10 -0700 X-Message-Number: 18 Greg, Go to http://www.krnet.org/KRnewsletter.html Or go to http://www.krnet.org and click on the SNAILMail newsletter link on the left. There are some KROnline (an electronic format alternative) back issues available as well from here. GREG S MARTIN wrote: > > I heard a lot of people talking of a news letter. How do I get in touch > with them to order it and hopefully back issues. > > Happy building and/or flying > > Greg Martin > Bakersfield, CA > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: HAPI Magnum 75 From: Ross Youngblood Date: Mon, 09 Aug 1999 12:04:15 -0700 X-Message-Number: 19 Eddie, The HAPI "magnum" heads looked at the time, just like the SCAT seperate preformance heads. You should be able to buy components for this from SCAT. Get a Hot VW's magazine and see if you can find them. I would recommend finding the part in the catalog and ordering it instead of calling them and saying "Hey, I need a part for my airplane engine", they might not sell it to you then. As far as I know these heads are still available so you should be able to get parts for them. -- Regards Ross Eddie KIng wrote: > > Does anyone have one of these for sale, run out or parted out? > I have a cracked rocker cover, which is not standard VW as this engine uses > seperate barrels and heads. > If anyone has any info on anything HAPI I'd be grateful. > > Eddie King > G-BUDF > http://www.a1techno.com/kr2/ > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: HAPI Magnum 75 (dune buggy) From: Ross Youngblood Date: Mon, 09 Aug 1999 12:06:26 -0700 X-Message-Number: 20 I found that getting a $5.00 fitting put on a piece of aircraft hose I got at a fly-in, was a lot cheaper if I told the guy at the Farmers Hydraulic place that I was building a dune buggy. -- Ross cartera wrote: > > Mike Mims wrote: > > > > Eddie KIng wrote: > > > > > > Does anyone have one of these for sale, run out or parted out? > > > I have a cracked rocker cover, which is not standard VW as this engine uses > > > seperate barrels and heads. > > > If anyone has any info on anything HAPI I'd be grateful. > > > > > > Eddie King > > > G-BUDF > > > http://www.a1techno.com/kr2/ > > > > > > > Eddie those heads were made by SCAT. Pick up a copy of Hot VWs mag and > > you will find a SCAT add in it for sure. I am not sure how they will > > react to you telling them they are the heads from HAPI and will go on an > > airplane though. > > > > -- > > zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz > > Micheal Mims > > Filling and Sanding again! > > http://www.geocities.com/CapeCanaveral/Hangar/4136/ > > http://members.home.com/mikemims/ > > Mirror Site http://www.fortunecity.com/marina/anchor/270/ > > 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-17800J@telelists.com > > Hi Gang, > Did you not know that you were building a dune buggy. I did know that > you had to volunteer information like this for parts. > -- > Adrian VE6AFY > Mailto:cartera@cuug.ab.ca > http://www.cuug.ab.ca/~cartera > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: Melting Lead Aileron Counterweights... From: Ross Youngblood Date: Mon, 09 Aug 1999 11:49:53 -0700 X-Message-Number: 21 R.W. Moore wrote: > > How much waight for a kr1? You use as much weight as it takes to get the aileron to balance (hinge striaght up/down) while hanging from supports (pipe clamps in my case). If you have not yet painted your ailerons, the plans suggest that you have a slightly trailing edge up balance to account for the paint. -- Ross > RWM > ----- Original Message ----- > From: Ross Youngblood > To: KR-net users group > Sent: Friday, August 06, 1999 1:38 AM > Subject: [kr-net] Melting Lead Aileron Counterweights... > > > How not to do it. > > > > Well after getting all of the advice from KR-net and reading > > the manual on how to make lead counterweights, I of course > > had to try different techniques that would work "better". > > > > Technique #1. Use leftover Aluminum C channel and cardboard > > to make a nice rectangular lead ingot. This worked well > > except for the fact that the C channel I used made an ingot > > that was too light. > > > > Technique #2. Go out and buy plaster to make some quick and > > dirty molds. This was fun, and messy. Started with a wooden > > plug then decided that this would get stuck in the plaster, > > so I had some plumbers clay around (next to where my daughter > > and I were playing, and so... had my daughter make some clay > > plugs the same size as the wooden plug. > > Hint #1: Think GOLD ingots, and taper the plug to make it > > easier to get the lead casting out of the mold. Broke mold #1 > > trying to get the first part out tonight. > > Hint #2: Think about curing your molds for more than 20 minutes. > > Somthing about the water content of recently cured plaster. Seems > > that water when subjected to heat... say the heat of molten lead. > > It cause instant steam, which wants to burst up through the lead. > > This made for an interesting science project, but could have burned > > us a bit... DOH! > > > > Had a lot of fun tonight, and made too rather ugly blocks of lead > > compared to the nice ones the C-channel made. Unfortunatly the > > two blocks are only enough to balance ONE aileron. I will measure > > this tomorrow to see how it compares to the plans 1-1/2"x2"x3" > > recommended mold. Somehow, I think the plans might be right, and > > I might have eyeballed the mold wrong yet again... DOH! > > > > The nice thing is with the ingots taped to the counterbalance arm > > the aileron balances! I love it when a plan ... almost comes > > together. My ailerons are painted already, so I will be ready > > to go once I get this tweeked. > > > > Also, I found that a Science diet dogfood can is a single sheet > > of tin with no soldered bottoms to melt. The Vise grips make a nice > > pour spout, and the aviation snips made a lip for the Vise grips > > to grab. > > > > I have a terrific gas burner on the grill that melts lead > > reasonably well. Keeps the KR project out of the kitchen and > > melting lead on the stove while we are trying to get our home > > ready for the market would probably loose me points with the > > wife. If anyone wants to know the brand of grill I can pass > > it on... perhaps I will take some photos for later. > > > > At any rate, I had fun again, and got my daughter involved too, > > which is what this KR stuff is supposed to be all about. > > > > If the plans technique works the first time, I can say that I > > wasted two days messing around trying to do it "my way" again. > > > > -- Regards > > Ross > > > > --- > > You are currently subscribed to kr-net as: rwmoore@alltel.net > > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > > > > > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: 2180 Less Reliable? From: Ross Youngblood Date: Mon, 09 Aug 1999 20:51:04 -0700 X-Message-Number: 22 The Corvair "Unsave at Any speed" was I thought, more due to the Corvair suspension, and lack of forward crumple zones in a crash than the engine reliability. That's the impression I got. MARVIN MCCOY wrote: > > I checked out the corvair web page and I have to agree that the corvair > engine sounds unbeatable. But being the pessimist and cynic that I am, > I can't help wonder why there are not more corvair engines used in > aircraft. There is a reason, what it is I do not know, but I don't > think the real reason has been explained. And I do not think weight has > much to do with it. Corvair got a bad rap some time ago when Nader > wrote his book "unsafe at any speed" I don't know if that could have > anything to do with the lack of corvair engines in airplanes. I still > have a big red flag in my mind. > Does anyone know how the dimensions compare to the VW, such as the > height and width of the two different motors. I know the length is a > little longer. > > Marvin McCoy > Seattle, WA. North end of Boeing field > > ---------------- > Dean Collette wrote: > > > > > > > > Personally, I am absolutely convinced that the Corvair is THE way to > > go. In fact, I believe it enough that I sold my Lycoming. > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com --- END OF DIGEST --- You are currently subscribed to kr-net as: johnbou@timberline.com To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com