Pietenpol-List: (no subject)

An archive of the Matronics Pietenpol Listserve.
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Re: Pietenpol-List: encouraging changes at EAA?

Post by matronics »

Original Posted By: "walt evans"
I, too, hope that EAA returns to its roots. When I was first affiliated with EAA in the late 1960's, scratch building a homebuilt was, to my knowledge, the only option. I flew my dad's Smith Miniplane to the last Rockford flyin in 1969 (photo in the October 1969 edition of Sport Aviation) and marvelled at row after row of "plans built" aircraft including the latest offering in the simple design category--the Volksplane. I've been to OSH twice in this century, and as many of you will note, many of the old designs that started EAA are not numerous. Perhaps that is a reflection on the times in which we live, but I did see a Model A-powered Air Camper that always had people around it. That's one reason I like the BHP designs--they remind us of a different era when a builder had to find parts and make decisions regarding materials. Twenty years ago, I was much too impatient to build. As I get older, the fun for me with my Sky Scout is in the gathering, like finding the tail skid spring at a local farm supply store and paying .19 cents for a mahagony knob for my control stick that my wife and I found at a flea market. Each time I finish a task that I've never done before (like machining the steel rod for my landing gear hinges), I am encouraged to keep going. Perhaps there is a life lesson in all of this musing.Terry HallEAA 367090________________________________________________________________________________Date: Tue, 21 Aug 2007 15:01:49 -0400
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Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: "Donald Lane"
Subject: Pietenpol-List: (no subject)Gene, I rent a 2300 ft grass strip with a t-hanger from a neighbor of mine about a half mile from my house.If you know where the law rd.exit 93 is off ofi-40 it is about 4 miles north of there. ROBERT BUSH NX294RB**************************************Check out AOL's list of 2007's hottest products.(http://money.aol.com/special/hot-produc ... 0000000001)________________________________________________________________________________
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Re: Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: RBush96589(at)aol.com
Robert,How did the weekend go?? If I ride my cycle down that way will I be able to see the strip from the road?(I'm riding down to Jackson later this week).Gene ----- Original Message -----
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Re: Pietenpol-List: Re: Digital Scale

Post by matronics »

Original Posted By: "MikeD"
The homebuilt "industry" has been mixing resins for bonding their planes for a heck of a lot of years. Rutan put some common sense in the use of two part epoxies for homebuilts bout 35 yrs ago now. Burt's first Varieze plans had you build a homemade scale to weigh resins/hardeners. The original plans described a weighing scale that utilized different "arms" from a centering pivot. The concept of "Arms" in weight/balance was something homebuilders understood. Cheap digital scales were not available at the time. The composite homebuilders use about 50 gals of resin/hardener to make their planes and all plans I know of use the weight ratio for mixing, one reason---it's the most accurate.. Most all epoxies promoted for use by homebuilders are very forgiving, the reason for this is because the resin part of the formula is a long polymer and it has a "equivalent weight" has a range, meaning-- the number of chemically reactive sites for the hardener to crosslink. The folks who make these resins like Shell or Dow or Ciba, sell their resins to formulators so they can decide what hardeners and diluents are good for the enduse. The formulators do their best to come up with a formula that is user friendly but also works well in the application. There are 100's of formulas that would work in homebuilding, but only a few that are promoted or approved by the original homebuilder designer. The benefit of this Piete thread is to inform builders they have have options and provide some help with decisions. A) weighing the resin/hardener to get the most accurate mix ratio is better technique. B) resin systems that are mixed 100:100 are more forgiving with mixed by volume. But many homebuilders use systems that require 3parts resin to 1 part hardener, or 2:1, these systems should be mixed by weight, it's simply better technique. C) in a previous posting, I discussed the cost to the homebuilder for using the wrong resin system or mis-mixing the system. The example I used was the roof collapse in the Boston Tunnel Big Dig. The resin system they used was a simple 100:100 mix by volume, it was made simple for the construction industry to bond bolts to concrete. It failed not because it was mis-mixed, but because the resin formulator sent the wrong product to the job site. The resin system had thermoplastic creep under strain, the resin set up "hard", seem initially to work ok, but slowly cold flowed when the weight of the concrete roof sagged the roof. System failed, someone died, millions of lost bucks, and a formulator in bankruptcy. Moral of story-------use the right epoxy system on your plane, use it correctly. The epoxy system holds your project together for it's entire life.......don't short change your knowledge of it's contribution to your safety. Do it right and you won't have to worry and you won't have to do it again.Gordon----- Original Message -----
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Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: "walt evans"
Subject: Pietenpol-List: (no subject)Gene, Saturday I had to do a little last minute tweak on the landing gear and finish making the cockpit covers so I did not get it up to the strip to puttogether.Then Sunday the weather was messy.so I am off work Thursday and I think I am going to put the wings and struts on it here at home and do a finalweight and balance,since I did it before I painted it. I have an asphalt drive so it would be easier to do here than on a grass strip then this weekendtake it up to the strip for the final assembly. yes you can see the strip fromthe road if you know where to look. If you are coming down Thursday or this weekend give me a call on my cell at 731 267 0578 and I will tell how to get here. Robert Bush**************************************Check out AOL's list of 2007's hottest products.(http://money.aol.com/special/hot-produc ... 0000000001)________________________________________________________________________________Date: Tue, 04 Dec 2007 18:29:19 -0500
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Re: Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: "Glenn Thomas"
Robert, If the weather is good I will make it thursday and give you a call. If I can be of any help getting your Piet ready let me know.Gene Cel 731-336-6893________________________________________________________________________________Date: Tue, 4 Dec 2007 22:04:08 -0500
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Pietenpol-List: Re: Digital Scale

Post by matronics »

Original Posted By: "MikeD"
Subject: Pietenpol-List: Website for PilotsCheck out this website!!!_"Over the Airwaves"_ (http://overtheairwaves.com/) **************************************Check out AOL's list of 2007's hottest products.(http://money.aol.com/special/hot-produc ... 0000000001)________________________________________________________________________________Subject: Pietenpol-List: Re: Digital Scale
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Post by matronics »

Original Posted By: "Glenn Thomas"
Glenn Thomas wrote:> Hi Mike,> I might have reacted a little quickly here. When I was starting out I wouldread a post on the forum, contemplate my approach and wonder if everything Ihad made thus far was junk, to learn later that it wasn't. That was very frustrating.> > The information on my website was put there because a friend of mine simply mixes1:1 by mass using a scale considering this technique highly precise. I knewhe visited my site and this was a subtle way of informing him. I still thinkmy "discovery" is right. ...but your is most accurate and I will continueas you have described. > > Thanks,> GlennNo worries Glen - my writing style occasionally comes out a little bombastic anyhow.My intention with the quoted word "discovery" was to highlight the factthat while the 1:1 volume ratio (fr T-88 that is) is correct, amounts of eachcomponent required to achieve that are determined using the reactivity data whichis concerned only with weight (well, mass actually), not volume. Mixing byweight is generally accepted in industry as the right way to do things wheretight control of properties is important. No intent to scare people, but onlyto pass on some info to show how they may be able to exercise more precise controlover the consistency and quality of their adhesive mixes - hard to arguewith the positives there.If your friend was mixing 1:1 by weight in an attempt to improve accuracy overmixing 1:1 by volume, hoo boy was he on the wrong track! [Embarassed] ... hehad in fact ensured every batch would be as messed up as the others! Mike D.--------Piet-builder-who-hopes-to-be-flying-next-summerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 5 Dec 2007 10:57:10 -0500
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Re: Pietenpol-List: Re: Digital Scale

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Original Posted By: Matt Dralle
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Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: "Dick Navratil"
Subject: Pietenpol-List: (no subject)Pieters,Would someone figure for me how much weight in water would one gallon milk jug support? ThanksNathan**************It's Tax Time! Get tips, forms, and advice on AOL Money & Finance. (http://money.aol.com/tax?NCID=aolprf00030000000001)________________________________________________________________________________
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RE: Pietenpol-List: (no subject)

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Original Posted By:
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Re: Pietenpol-List: (no subject)

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Original Posted By: harvey.rule(at)bell.ca
Actually, a gal of water weighs 8.33 lbs.Dick N. ----- Original Message -----
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RE: Pietenpol-List: (no subject)

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Original Posted By:
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RE: Pietenpol-List: (no subject)

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Original Posted By:
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Re: Pietenpol-List: (no subject)

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Original Posted By: "Rick Holland"
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Re: Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: Isablcorky(at)aol.com
Didn't we do this same calculation for Corkey a couple of years ago using ping pong balls? Was he going to invade Cuba or some such thing back then?The basic answer is 113 to achive neutral bouancy, theoretically. That equalls approximatly 15 cu/ft.Maybe you should carry 3-4 innertubes and a tire pump to save some space.Dick ----- Original Message -----
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Re: Pietenpol-List: (no subject)

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Original Posted By: AMsafetyC(at)aol.com
Subject: Re: Pietenpol-List: (no subject)Dick, have you priced ping pong balls lately???????????????????**************It's Tax Time! Get tips, forms, and advice on AOL Money & Finance. (http://money.aol.com/tax?NCID=aolprf00030000000001)________________________________________________________________________________
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Re: Pietenpol-List: (no subject)

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Original Posted By: _harvey.rule(at)bell.ca_ (mailto:harvey.rule(at)bell.ca)
Subject: Re: Pietenpol-List: (no subject)Actually its 8.322In a message dated 3/4/2008 12:34:43 P.M. Eastern Standard Time, horzpool(at)goldengate.net writes:Actually, a gal of water weighs 8.33 lbs.Dick N.----- Original Message -----
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RE: Pietenpol-List: (no subject)

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Original Posted By: "Phillips, Jack"
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Re: Pietenpol-List: (no subject)

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Original Posted By: Ryan Mueller
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RE: Pietenpol-List: (no subject)

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Original Posted By:
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Post by matronics »

Original Posted By: Ryan Mueller
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Pietenpol-List: Re: (no subject)

Post by matronics »

Original Posted By: Ryan Mueller
My best non-engineer guessBuoyancy of the jug equals weight of water displacedF=(Vw)F= force (in this case buoyancy)V=volume of fluid displaced in cubic feet (1 gal=0.1336806 cubic feet)w = specific weight of the fluid (Sea water which is slightly heaver then freshwater weighs in at about 64 pounds per cubic feet. Anyone know the actual densityof sea water in the Gulf?) So 64 x 0.1336806 = 8.5555584 pounds per gallon at full submersionNow Cork woops I mean Nathans plane sitting in the water will weigh 940 pounds.If we assume the plane has zero flotation on its own, it will require940 / 8.5555584 = 109 gallons of floatation. Lets round up to 110 to account for the added weight of the jugs.So 110 gal x 0.1336806 = 14.70 cubic feet of space Nathan needs to find Milk here in California is $3.99 per gallon so the cost of flotation will be $438.90.However, you could probably scrounge around and get them for free.Containment of the jugs post water landing might be a problem. In addition, theplane will want to float nose down. You will want to have the flotation in frontof and below the pilot so you will stay high and dry until you can get out.NO sense in placing it behind you as all the rescue people will see is thetail bobbing up and down in the water. And you probably didn't have time to getout.--------Chris TracyWestCoastPiet.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 4 Mar 2008 11:48:26 -0800 (PST)
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Re: Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: Dick Navratil
If memory serves right, Corky was trying to figure out how many plastic gallon milk jugs he needed on board to make his Piete float, think it was the Cuban invasion thing.Gordon ----- Original Message -----
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Re: Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: "gcardinal"
Corky, forget the milk jug thingy and buy booze in plastic jugs. It'll make your stay at sea a whole lot happier. Besides, you can only drink just so much milk.Gene________________________________________________________________________________
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Re: Pietenpol-List: Let's look at altimeters

Post by matronics »

Original Posted By: John Egan
These are sweet, but pricey......http://cgi.ebay.com/ebaymotors/ws/eBayI ... 0202277742 ----- Original Message -----
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Re: Pietenpol-List: Let's look at altimeters

Post by matronics »

Original Posted By: John Egan
John, in the non-sensitive altimeter you describe, the needle DOES move when you start ascending, just not when you turn the knob. Set it to zero on the ground and the needle moves up as you climb. There is absolutely nothing wrong with this, it is very light, simple and accurate. All you ever really need to know is an approximate pattern altitude from time to time. Otherwise, the Piet doesn't need an altimeter.Gene ----- Original Message -----
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Re: Pietenpol-List: (no subject)

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Original Posted By: MaxHegler
Subject: Re: Pietenpol-List: (no subject)
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>> Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: "jimboyer(at)hughes.net"
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Re: [!! SPAM] Pietenpol-List: Finished wieghts of Spruce Piets vs.

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Original Posted By: Owen Davies
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Re: Pietenpol-List: Let's look at altimeters

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Original Posted By: "KMHeide, BA, CPO, FAAOP"
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Pietenpol-List: Re: Riblett install

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Original Posted By: Isablcorky(at)aol.com
Hi Curious:Couldn't help noticing your concern, I have been in touch with H Riblett sincethe very early 90s and I sent him the Piet wing specs, he then gave me a completeoverview of, Piet, 4412(Luscomb) and two recommended Riblett designs, GA 30- U-612, plus a thicker design, My second Piet had a 4412, clipped 2 ft. A great performer.When I installed a Werner 145 on my Blue Piet it would only go 105 MPH @ 80% throttle,I go much faster with the Werner in another airplane, so I decided to go a headand build the 612,( not to be confused with the 612 in Riblett's book ) I clippedthe wing two feet, made a 3 piece, 6" hi spars, added the spacer on the sparto rib, and built it the same as the Pitt. It is close to 5/8" higher and hasa 3/8 undercamber. With testing the comparison of the Piet to the Riblett wings, using the Lambert90HP engine, there is a very big difference. Even with the shorter wing, you wontbelieve the glide ratio, 42MPH stall, 600 FPM climb, and flat out speed 108 MPH.The Piet wing has an air separation on the under side at the rear 20% of the wing,as per Riblitts computer read-out.By the way the wing will pull close to 2.5 Gs at 120 MPH at the bottom of a loop.Got a lot of answers, if you need an opinion.Pieti Lowell"=========Tim in central TX-----Original Message-----
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Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: shad bell
Subject: Pietenpol-List: (no subject)Hi John,Gene gave you the wrong phone number it is 731-267-0578 ,and the exit number off of I-40 is # 93.I drive a truck so I don't know my schedule exactly,but I am usually home evenings just give me a call a day ahead and I should be able to tell you if Iam going to be around,and would be glad to show you my plane. Randy Bush NX294RB**************Need a job? Find employment help in your area. (http://yellowpages.aol.com/search?query ... lp00000005)________________________________________________________________________________Date: Sun, 15 Mar 2009 14:04:32 -0700 (PDT)
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Pietenpol-List: Re: Stuck Value

Post by matronics »

Original Posted By: "Gene & Tammy"
I stopped using Marvel a number of years ago , and now I use synthetic two-cycleoil at 400:1 with good success. I did my test work on the Werner 145,and myLamberts (3) and have been running with this oil for the past 200 hours in myFord,with no complaints.Pieti LowellRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
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Re: Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: RBush96589(at)aol.com
Boy did I screw that up!! Oh well, I was somewhat close. Randy, I just test flew Rich's plane this afternoon for him and it did great. His number is the one I gave to John by mistake.Gene ----- Original Message -----
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Pietenpol-List: (no subject)

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Original Posted By: Jeff Boatright
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Re: Pietenpol-List: Airport is in trouble!!

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Original Posted By: ALAN LYSCARS
Al,Hales Landing 2WV3, 12 miles south of Parkersburg WV.Skip----- Original Message -----
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RE: Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: owner-pietenpol-list-server(at)matronics.com
John,You are right! This was my first experience with poplar and I found it veryenjoyable to work with. The fuse is done, as are the tail components andsome of the ribs.Gary BootheCool, Ca.PietenpolWW Corvair ConversionTail done, Fuselage on gear(13 ribs down.) _____
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Pietenpol-List: Re: Had a great time in your backyard

Post by matronics »

Original Posted By:
Pleasant weather is an understatement... uh, kind of... it was 90+ degrees and>100% humidity. Ha ha! Oh well... that is what the cold brew is for. Sure glad you could make it out John... it was nice to meet you and share stories.There were two things I meant to do while you were here that I totally forgot...1. Get a picture... I brought the camera but forgot to get it out. 2.Show you the pilot lounge... it is cool, literally, which would have been niceto step into for a few minutes. The floor has a huge blow up of the Tulsa areafrom the KC sectional on the floor. Maybe next time I guess. Glad you had a good time. See you at Brodhead.--------Mark - working on wingsRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 16 Jun 2009 20:08:55 -0400
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Pietenpol-List: (no subject)

Post by matronics »

Original Posted By: "Jack Phillips"
Subject: Pietenpol-List: (no subject)Pieters,Looking for pics of a Piet with regular gear, coil spring shocks and motorcycle wheels. Any info on such an animal will sure be appreciated. don't remember any but it's been a long time since I Pietered. Using 1/2 gallon milk jugs is THE answer for wing flotation. You can fill those spaces entirely. That thing would float foreverCorky, an old Pieter**************An Excellent Credit Score is 750. See Yours in Just 2 Easy Steps! eExcfooterNO62)________________________________________________________________________________
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RE: Pietenpol-List: (no subject)

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Original Posted By: owner-pietenpol-list-server(at)matronics.com
Corky,Sounds like the setup Walt Evans has on his Pietenpol, except I believe hehas bungees instead of Die springsJack PhillipsNX899JP _____
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Re: Pietenpol-List: (no subject)

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Original Posted By: Isablcorky(at)aol.com
Hi CorkySeveral of the Pietenpols built in the UK have the coil spring and motorcycle wheels.Seehttp://westcoastpiet.com/new_page_27.htmhttp://westcoastpiet.com/g-buco_(Alan%20James).htmhttp://westcoastpiet.com/g-ecvb.htmSome U.S. based Pietenpols that I can think ofhttp://westcoastpiet.com/new_page_5.htmhttp://westcoastpiet.com/nx899ac.htmhttp://westcoastpiet.com/hank.htmhttp://westcoastpiet.com/new_page_50.htmhttp://westcoastpiet.com/wayne,_bob_anf_jeff.htmhttp://westcoastpiet.com/new_page_58.htmChrisSacramento, CAWestCoastPiet.com ----- Original Message -----
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Pietenpol-List: (no subject)

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Original Posted By: Jim
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Re: Pietenpol-List: (no subject)

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Original Posted By: "Gary Boothe"
Subject: Re: Pietenpol-List: (no subject)Thanks, that will help me get started.Now the big question. When I approach the motorcycle boneyard. What make bike and wheel size would be considered the strongest for gearing a PietCorky**************An Excellent Credit Score is 750. See Yours in Just 2 Easy Steps! eExcfooterNO62)________________________________________________________________________________
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RE: Pietenpol-List: (no subject)

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Original Posted By: owner-pietenpol-list-server(at)matronics.com
I'm not airborne, yet, but I have 21" Sportster wheels.Gary BootheCool, Ca.PietenpolWW Corvair ConversionTail done, Fuselage on gear(13 ribs down.) _____
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Pietenpol-List: (no subject)

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Original Posted By: "ALAN LYSCARS"
Subject: Pietenpol-List: (no subject)Would someone give me Walt Evans e mail address please, ThanksCorky**************A Good Credit Score is 700 or Above. See yours in just 2 easy steps! JulystepsfooterNO62)________________________________________________________________________________
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Re: Pietenpol-List: (no subject)

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Original Posted By: Tim Willis
Talk to Oiete Lowell.He's the authority. his wing is the 612 airfoil.On Aug 14, 2009, at 8:40 AM, Isablcorky(at)aol.com wrote:> Pieters,>> May I hear from you on the pros and cons of the alternate airfoil # > 612, I believe that's it. If anyone is flying this wing would you > please contact me off Piet line.> Thanks> Corky>>________________________________________________________________________________Date: Fri, 14 Aug 2009 12:59:08 -0400 (EDT)
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Pietenpol-List: (no subject)

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Original Posted By: Dan Yocum
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Re: Pietenpol-List: (no subject)

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Original Posted By: Mark Roberts
Subject: Re: Pietenpol-List: (no subject)
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Re: Pietenpol-List: (no subject)

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Original Posted By: Mark Roberts
Hey mark how's it going? Haven't heard from ya in a while. What's news how's thingspeogressing?JohnSent from my Verizon Wireless BlackBerry-----Original Message-----
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