Pietenpol-List: Spars

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Pietenpol-List: plans

Post by matronics »

Original Posted By: "Robert Gow"
Subject: Pietenpol-List: planswell im getting emails on the legal end of selling the plans i have im not selling them . but i did get an email from someone who offered to scan them and put them on a disc for me ,if you read this email me so we can get it donethen i can email the drawings to everyone free. tom________________________________________________________________________________
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RE: Pietenpol-List: plans

Post by matronics »

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Same thing as selling them. The are not your intellectual property todistribute.Bob -----Original Message-----
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Pietenpol-List: plans

Post by matronics »

Original Posted By: Chris Cosentino
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Re: Pietenpol-List: plans

Post by matronics »

Original Posted By: Lynn Knoll
I think a few people are confused. Tom wasn't offering up a full set of Piet plans,but acopy of plans for a box spar and quick connects.-Mac ----- Original Message -----
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Re: Pietenpol-List: plans

Post by matronics »

Original Posted By: TRichmo9(at)aol.com
Tom,I'd like a set. Please send me mailing info.AlanPortland, Maine ----- Original Message -----
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Re: Pietenpol-List: plans

Post by matronics »

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Subject: Re: Pietenpol-List: plansIn a message dated 5/25/05 3:36:14 P.M. Central Daylight Time, rgow(at)avionicsdesign.ca writes:Same thing as selling them. The are not your intellectual property to distribute.Bob-----Original Message-----
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Pietenpol-List: plans

Post by matronics »

Original Posted By: Greg Bacon
Subject: Pietenpol-List: plans im going out in the morning and getting a new scanner, ill scan these drawings off in sections and email them out tom________________________________________________________________________________Date: Wed, 25 May 2005 17:27:24 -0500
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Pietenpol-List: Spars

Post by matronics »

Original Posted By: Owen Davies
Subject: Pietenpol-List: SparsI have yet to begin the construction of my wings as such the topic of spars, spar designs and materials holds a large interest for me at the moment. I have not yet settled on a design or materials and would be interested in supplier sources, materials and designs currently in use, under construction orbeing considered.I have been toying with the idea of using an I beam design built up from 1/8 aluminum web and poplar as my flange material. I am not certain of ho to measure the relative strength of such a spar against the original spar design toinsure it will stand all the stresses and loads imposed on the wings.Has anyone been able to evaluate the all the forces on a spar as designed and compared alternative materials to see how they match up?I would be interested in those calculations also as this is just in the conceptual phases at the moment and unless I can come up with the calculationsthat the design is minimally as strong and reliable as the BP design and or stronger perhaps? I will abandon the idea and stay traditional in the spar construction. Any rocket scientists, structural, aeronautical, mechanical engineers or those having input to share that are willing to provide advice andguidance, please feel free to lend that assistance.ThanksJohn**************Plan your next getaway with AOL Travel. Check out Today's Hot 5 Travel Deals! ________________________________________________________________________________Date: Tue, 04 Nov 2008 10:45:18 -0500
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Re: Pietenpol-List: Spars

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Original Posted By: "Ryan Mueller"
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Re: Pietenpol-List: My Sitka supplier

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Original Posted By: Michael Perez
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RE: Pietenpol-List: Spars

Post by matronics »

Original Posted By: Tim Willis
John,This is an idea I wouldn't "toy with".You are talking about bonding (I assume) two vastly different materials -aluminum and wood. There are issues with moisture and adhesion and corrosionand a "biggie" - thermal expansion.Let's assume your wing will be exposed to a temperature range of 100 degreesFahrenheit (20 below to 80 above). This is a conservative estimate - thereal-world application will likely see a temperature range closer to 150degrees, since a wing sitting out in direct sun can get much hotter than theambient air temperature, but we will use 100 degrees for this example. Thelength of your fourteen-foot piece of aluminum is going to expand andcontract by a value of 7/32". Over this same temperature range, the woodflanges will only expand and contract by a value of less than 1/16". This isa difference of almost 3/16". The result is that your glue joints will allfail in shear, and the flanges will no longer be attached to the aluminumwebs. If, by some fluke, the glue manages to hold, your spar will beexperiencing all kinds of stresses which will likely pull the spar out ofshape (warping and twisting).It's one thing to use an aluminum spar with wooden ribs. It's a whole otherthing to build a spar out of aluminum and wood. And I'm not sure why anyonewould want to try. I don't see any possible advantages to such an approach.It's not likely to be cheaper, or easier to build, or lighter or strongerthan a wooden spar.If anyone wishes to stray from the traditional solid spruce spar as shown inthe plans, at least choose a flight-proven design. Bill C.________________________________________________________________________________Date: Tue, 4 Nov 2008 12:28:09 -0500 (EST)
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> RE: Pietenpol-List: Spars

Post by matronics »

Original Posted By: bike.mike(at)comcast.net
Subject: Re: Pietenpol-List: SparsThose among many are areas of my concern which is the main reason for toying with an un proven concept and bringing it for as discussion. Aside from thermal expansion and bonding issues what other considerations are there? I am not interested in building an unsafe or un reliable aircraft just curious and toying with the concept of mixing and using alternative materials.Bonding of course being a key issue as I would have no good way of joining thealuminum spar to the wooden rib, without the use of wooden top and bottom flanges which again creates the same question of binding dissimilar materials,thermal expansion, corrosion and loading.JohnIn a message dated 11/4/2008 12:30:18 P.M. Eastern Standard Time, timothywillis(at)earthlink.net writes:--> Pietenpol-List message posted by: Tim Willis John,Don't do it... period. No aluminum-wood mix in your spars!!! Bill Church is absolutely right.I tried something like it. I glued some aluminum to wood, not for strength, but just so it wouldn't move around, just to keep through-holes aligned. I was gluing other stuff, and was curious as to the possible bond... no harm, no foul. The bond held at first, but then temperature changes, and bing... the bond failed WITHOUT any stress at all. (BTW, for those of you wondering,it was in my seatbelt attachment assemblies, not a part on the plans.)I cannot imagine the possible disaster of your intended application.Tim in central TX-----Original Message----->From: Bill Church >Sent: Nov 4, 2008 11:56 AM>To: pietenpol-list(at)matronics.com>Subject: RE: Pietenpol-List: Spars>>John,> >This is an idea I wouldn't "toy with".> >You are talking about bonding (I assume) two vastly different materials ->aluminum and wood. There are issues with moisture and adhesion and corrosion>and a "biggie" - thermal expansion.>Let's assume your wing will be exposed to a temperature range of 100 degrees>Fahrenheit (20 below to 80 above). This is a conservative estimate - the>real-world application will likely see a temperature range closer to 150>degrees, since a wing sitting out in direct sun can get much hotter than the>ambient air temperature, but we will use 100 degrees for this example. The>length of your fourteen-foot piece of aluminum is going to expand and>contract by a value of 7/32". Over this same temperature range, the wood>flanges will only expand and contract by a value of less than 1/16". This is>a difference of almost 3/16". The result is that your glue joints will all>fail in shear, and the flanges will no longer be attached to the aluminum>webs. If, by some fluke, the glue manages to hold, your spar will be>experiencing all kinds of stresses which will likely pull the spar out of>shape (warping and twisting).>It's one thing to use an aluminum spar with wooden ribs. It's a whole other>thing to build a spar out of aluminum and wood. And I'm not sure why anyone>would want to try. I don't see any possible advantages to such an approach.>It's not likely to be cheaper, or easier to build, or lighter or stronger>than a wooden spar.> >If anyone wishes to stray from the traditional solid spruce spar as shown in>the plans, at least choose a flight-proven design. > >Bill C.>>> **************Plan your next getaway with AOL Travel. Check out Today's Hot 5 Travel Deals! ________________________________________________________________________________
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RE: Pietenpol-List: Spars

Post by matronics »

Original Posted By: bike.mike(at)comcast.net
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RE: Pietenpol-List: Spars

Post by matronics »

Original Posted By: "Phillips, Jack"
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Re: Pietenpol-List: Spars

Post by matronics »

Original Posted By: "Ryan Mueller"
Subject: Re: Pietenpol-List: SparsHaving discussed the issue with other engineers and designers who have all indicated that it was a possible to construct and accomplish, my other concerns have always been within the realm of wing loading, torsional forces andmaterial fatigue. Along with ways to calculate those as compared to the strength and reliability of wood which prompted the questions in my original post.The answers I have received so far and the quality of the explanations given make a great deal of sense, to that point of which I have quickly abandoned toying with the idea of an aluminum/wood spar design. Actually the hidden deterioration of the aluminum clad in wood created by the moisture content wasan excellent point by Jack and speaks to some of the more salient factors affecting that type of combination. I thank you all for your valuable and highly respected input, I appreciate it.JohnIn a message dated 11/4/2008 3:03:16 P.M. Eastern Standard Time, rmueller23(at)gmail.com writes:That's sort of like saying you propose to play a game of Russian Roulette, and upon being told that there is a very high likelihood of death or disfigurement you then ask what other considerations there are....Ryando not archiveOn Tue, Nov 4, 2008 at 11:41 AM, wrote:Aside from thermal expansion and bonding issues what other considerations are there? (http://www.matronics.com/contribution) (http://www.matronics.com/Navigator?Pietenpol-List) **************Plan your next getaway with AOL Travel. Check out Today's Hot 5 Travel Deals! ________________________________________________________________________________Date: Tue, 4 Nov 2008 15:33:08 -0600
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Re: Pietenpol-List: Spars

Post by matronics »

Original Posted By: amsafetyc(at)aol.com
Regardless of the number of total flight time a pilot has, time-in-type is apparentlyvery important from what I've been told. Are there any Piets in existence with dual flight controls? Else, how would you "really" learn to fly one without unnecessary risks to yourselfand others.--------Location: Wilson, NCRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Spars
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Post by matronics »

Original Posted By: Jeff Boatright
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________________________________________________________________________________Date: Tue, 4 Nov 2008 20:35:35 -0400
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Re: Pietenpol-List: How do you learn to fly a Pietenpol?

Post by matronics »

Original Posted By: "Ryan Mueller"
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Re: Pietenpol-List: How do you learn to fly a Pietenpol?

Post by matronics »

Original Posted By: "Tom Anderson"
Tom, Bill David in EAA Chapter 582 near Toledo, Ohio has a dual equipped Piet. His e-mail is: wjdavid582(at)embarqmail.com. I got some landing help from him after my landing "event" last July.--Jim Lagowski----- Original Message -----
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Re: Pietenpol-List: How do you learn to fly a Pietenpol?

Post by matronics »

Original Posted By: Jeff Boatright
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Pietenpol-List: How do you learn to fly a Pietenpol?

Post by matronics »

Original Posted By: shad bell
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Re: Pietenpol-List: How do you learn to fly a Pietenpol?

Post by matronics »

Original Posted By: Matt Dralle
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Pietenpol-List: Re: How do you learn to fly a Pietenpol?

Post by matronics »

Original Posted By: Jim Ash
I'm encouraged by the responses, gents - thanks!--------Location: Wilson, NCRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 5 Nov 2008 08:36:29 -0500 (EST)
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Pietenpol-List: Re: How do you learn to fly a Pietenpol?

Post by matronics »

Original Posted By: Jim Ash
Thanks, Jim - that sounds like excellent advice. I really appreciate you takingthe time to post it.FWIW, I don't tolerate screaming under any situation. I had enough of that whileat West Point and I don't need it in my life now.--------Location: Wilson, NCRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 5 Nov 2008 09:09:38 -0500 (EST)
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Re: Pietenpol-List: How do you learn to fly a Pietenpol?

Post by matronics »

Original Posted By: Tim Willis
Subject: Re: Pietenpol-List: How do you learn to fly a Pietenpol?To paraphrase my instructor's advice on learning to fly or practicing flying:"Don't fly if you don't feel good or the plane or the weather is not acceptable.Flying should be fun." "If you are practicing landings and it is about time to stop and you have a greatlanding, Stop on that landing, It will remain in your memory and that willbe the landing that you consider to be the standard.""If your landings are consistantly off, stop and tie the plane down, no reasonto practice bad landings."'If you go up and it does not feet right and you are not doing things right, Landand tie the plane down. You are paying to fly and enjoy it and hone your skill.Don't waste time and money on bad flying."He did push me on learning. He did not want me to just fly around paying for deadweight in the right seat. I was a Grad student and did not have a lot of money.Once I was signed off to solo when I wanted he told me to practice but thatit was OK to go fly for fun sometimes. It sure kept my enthusium up. If he had a student with whom he was not being effective (rare) he did not takeit personally. He had the club Senior flight instructor meet with him and thestudent and discuss who might do a better job. Too bad he now flys for Transavia in Holland and is not instructing.Blue skiesSteve D________________________________________________________________________________Date: Wed, 5 Nov 2008 12:02:56 -0500 (EST)
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Pietenpol-List: Spars

Post by matronics »

Original Posted By: "bender"
Jerry Dotson wrote:> I have a small 18"X48" CNC router. It is pretty crude looking. I built it about10 years ago from wood to see if the idea would work. The plan was to buildit from steel if it did. It has worked so well I wish I had took more time tomake it look good. It has 0.005" or less repeatability. I cut all the wing ribgussets and my panel with it. I'm looking for a pretty piece of plywood formy panels. The one in the picture is just a cheap luan plywood test cut. It onlytakes about 5 minutes to cut and drill one. All done with a 1/8" carbide endmill.> The USMC coaster is an engraving gift I made for a Marine currently serving.It is made from DuPont Corian counter top material.Very nice. Pretty doesn't count on tools, effectiveness does. :) As for the panel, why not just laminate some burl walnut veneer on it or somethingand call it good? :)--------Brad "DOMIT" SmithFirst rule of ground school: This is the ground... don't hit it going fast.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Spars
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Pietenpol-List: Re: Spars

Post by matronics »

Original Posted By: "kevinpurtee"
"Very neat setup Do you have plans for your router x y table??Don"I have no plans. I just dreamed it up.I don't know where to get the veneer.--------Jerry Dotson59 Daniel Johnson RdBaker, FL 32531Started building NX510JD July, 2009wing, tailfeathers done, fuselage rollingusing Lycoming O-235Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Spars
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Post by matronics »

Original Posted By: "Barry Davis"
Go per AC 43-13. In some of the later literature Mr. Pietenpol makes that correction.Kevin--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
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Re: Pietenpol-List: Re: Spars

Post by matronics »

Original Posted By: Ryan Mueller
Subject: Re: Pietenpol-List: Re: Spars
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Pietenpol-List: Re: Spars

Post by matronics »

Original Posted By: "Douwe Blumberg"
Thanks.... thats what i thought would be the best too..planing boards tomorrowthe lumber yard is Koetter Lumberthey are a mill and drying wholesale lumber company.... i just got lucky enoughto know someone that knows someone..i went along to see the four boards they pulled but was told not to say anythingabout them being for me....there is another place called Long and Wide lumber... the owner also works, orworked at Koetter and can get wood from them.. PC lumber in New Albany says theycan order from Koetter and they are a retail store.not sure I could use up my contact to much... but maybe ?jeffRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
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> > Re: Spars

Post by matronics »

Original Posted By: oil can
> > Steve wrote:> I plan on building box spars too using Luan Philippine mahogany as the> front and rear skins. I calculate they will save about 18lbs over the> solid spars. > What other ideas are you using to save weoght.> Steve> > >> >> >I have been planning to do just that. The price of a solid> >spruce spar along with the additional strength to weight of a> >built up plywood and spruce spar seems to make it a good idea.> >I'm looking at just matching the strength of the solid spar,> >which will make it a little lighter and also stiffer.> >> >Mike Bell> >Columbia, SC> >> >> >> >> >> >> >lolata on 07/01/99 12:56:17 PM> >> >Please respond to Pietenpol Discussion > >> >To: Pietenpol Discussion > >cc:> >Subject: Re: Spars> >> >> >> >> >Hi Guys> >> >Has anyone ever seen or built a Piet wing with type "box" spars ?> >> >Luis Lolata> >> >lolata(at)sercomtel.com.br> >> >www.geocities.com/CapeCanaveral/Runway/1227> >> >> >> >> >> >> >> >> > Jes maken "WoodChips" heah in Missippippi!> url= http://www2.misnet.com/~vistin> email= vistin(at)juno.com> > __________________________________________________________________________________________
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> > Re: Spars

Post by matronics »

Original Posted By: "David B. Schober"
>> Steve wrote:> I plan on building box spars too using Luan Philippine mahoganyas the> front and rear skins. I calculate they will save about 18lbsover the> solid spars.> What other ideas are you using to save weoght.> Steve> writes:> >> >> >I have been planning to do just that. The price of a solid> >spruce spar along with the additional strength to weight of a> >built up plywood and spruce spar seems to make it a good idea.> >I'm looking at just matching the strength of the solid spar,> >which will make it a little lighter and also stiffer.> >> >Mike Bell> >Columbia, SC> >> >> >> >> >> >> >lolata on 07/01/99 12:56:17 PM> >> >Please respond to Pietenpol Discussion > >> >To: Pietenpol Discussion > >cc:> >Subject: Re: Spars> >> >> >> >> >Hi Guys> >> >Has anyone ever seen or built a Piet wing with type "box"spars ?> >> >Luis Lolata> >> >lolata(at)sercomtel.com.br> >> >www.geocities.com/CapeCanaveral/Runway/1227> >> >> >> >> >> >> >> >>> Jes maken "WoodChips" heah in Missippippi!> url= http://www2.misnet.com/~vistin> email= vistin(at)juno.com>>__________month!________________________________________________________________________________
matronics
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> Re: Spars

Post by matronics »

Original Posted By:> > Steve W
> > What thickness plywood are you planning for your box spar? I'vebeen> thinking about this route also but would need some more info on splicing> the plywood for the box face and relative strengths. Any info on the web> for designing box spars? Think I'll do some searching, but it will be a> while before I need spars.> Wayne Sippola> > ----------
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> > > Re: Spars

Post by matronics »

Original Posted By: Craig Lawler
> > > > Steve wrote:> > I plan on building box spars too using Luan Philippine mahogany as the> > front and rear skins. I calculate they will save about 18lbs over the> > solid spars. > > What other ideas are you using to save weoght.> > Steve> > writes:> > >> > >> > >I have been planning to do just that. The price of a solid> > >spruce spar along with the additional strength to weight of a> > >built up plywood and spruce spar seems to make it a good idea.> > >I'm looking at just matching the strength of the solid spar,> > >which will make it a little lighter and also stiffer.> > >> > >Mike Bell> > >Columbia, SC> > >> > >> > >> > >> > >> > >> > >lolata on 07/01/99 12:56:17 PM> > >> > >Please respond to Pietenpol Discussion > > >> > >To: Pietenpol Discussion > > >cc:> > >Subject: Re: Spars> > >> > >> > >> > >> > >Hi Guys> > >> > >Has anyone ever seen or built a Piet wing with type "box" spars ?> > >> > >Luis Lolata> > >> > >lolata(at)sercomtel.com.br> > >> > >www.geocities.com/CapeCanaveral/Runway/1227> > >> > >> > >> > >> > >> > >> > >> > >> > > > Jes maken "WoodChips" heah in Missippippi!> > url= http://www2.misnet.com/~vistin> > email= vistin(at)juno.com> > > > __________________________________________________________________________________________
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> Re: Pietenpol-List: Spars

Post by matronics »

Original Posted By: "Wayne Sippola"
> > > Wayne and others,> Back in 1961 Paul Best wrote an article in Sport Aviation comparing builtup I-beam spars versus solid spars.> I have scanned this article and can e-mail it to whoever wants it.> It is 6 jpeg images totalling approx. 7megs.> The article was published in April of 1961 with a correction printed inJune of '61.> > Greg Cardinal Please email me a copy, I'd like to read it. I've seen almost nothingonthe subject. Wayne Sippola, Winnipeg sippola(at)escape.ca________________________________________________________________________________
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> Pietenpol-List: horns

Post by matronics »

Original Posted By: "Carl Loar"
> > > my two cents> I angled the blade on my table saw and cut a vee in a> hardwood piece about 2 feet long, and then cut a male> part of the vee in another 2 ft long piece. like a> punch and die. used an arbor press and pressed the> concave into the horn pieces. I cut off the 2 foot> pieces to match the size of the horns. turned out like> a factory made part. I only drilled the holes in one> side of the horns and then when they were welded> together. I drilled thru the other one. the welds were> not a problem and with a little belt sanding and> filing they looked really nice. be careful not to sand> all of the weld away.> del> > Get Yahoo! Mail - Free email you can access from anywhere!> http://mail.yahoo.com/> > > > ________________________________________________________________________________
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Re: Pietenpol-List: Spars

Post by matronics »

Original Posted By: Rcaprd(at)aol.com
> >> >> >> >> >> >> >> >> >> >> >> > > > > > >> browse> Subscriptions page,> FAQ,>> > > > > > > > > __________________________________ http://mobile.yahoo.com/learn/mail ________________________________________________________________________________Date: Mon, 16 May 2005 19:28:51 -0700
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Re: Pietenpol-List: Spars

Post by matronics »

Original Posted By: "Lynn Knoll"
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > browse > Subscriptions page, > FAQ, > > > > > > > > > > __________________________________ http://mobile.yahoo.com/learn/mail =========================e the es Day --> ====================================================== i copyed the plans and they look pretty good they will cost you 11 dollarsif you want a set ,my address is rt2 box 263 cleveland oklahoma 74020---________________________________________________________________________________
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RE: Pietenpol-List: Spars

Post by matronics »

Original Posted By:
> ________________________________________________________________________________
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