Pietenpol-List: Work table thoughts, and rib jig done!

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Pietenpol-List: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: "Ryan Mueller"
Fellow Air Campers:This may or may not be a new topic. I am going to be building up a Corvair enginefor my Air Camper and have William Wynne's manual. He states that he is notvery fond of building up an engine without a starter and alternator, batteryetc.My question to all of you who have experience with the Corvair aircraft engineis this; Can you hand prop that engine without too much effort?After adding up some of the weights, I'm leaning heavily towards not installinga starter, alternator, battery system etc.I flew a Volksplane for many hours and always hand proped the engine. But thenagain it was only a four banger and lower compression.What do you think? Especially anyone who is currently hand starting a Corvair.Thanks.Bob Butsch--------Robert Butsch EAA 66532Pietenpol NX45BB (Alpha stage)In Indy INRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Work table thoughts, and rib jig done!
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Post by matronics »

Original Posted By: Pietn38b
Good morning,I wanted to what others experiences were regarding worktables. We're going to besetting up one bay of a two car garage with tables so we can begin laying outthe fuselage. I found a page at the EAA Chapter 1000 site detailing their worktabledesign:http://www.eaa1000.av.org/technicl/work ... ig.htmThey went with 2'X5' tables, and then they clamp them together as needed. Sincewe would need at least three of those end to end for length and would need tobuild it slightly wider than 2', I thought we would scale up their basic design.I'm thinking two tables, 30" to 36" wide and 8 feet long. Two tables versusthree decrease the potential for leveling/alignment issues, but would stillbe easier to move around than one long 15' to 16' table. Any suggestions?I also pretty much finished the rib jig this weekend. Very excited about that.I hope to get a couple ribs done this week! The crankshaft is out being machinedand nitrided, and the Stromberg just went out for overhaul. Feels good to bemaking a bit of progress.Have a good one,RyanRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/ribj ... ______Date: Mon, 28 Apr 2008 09:49:31 -0500
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Re: Pietenpol-List: Hand prop a Corvair?

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Original Posted By: Michael Groah
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Re: Pietenpol-List: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: "Ryan Mueller"
I did mine by laying the 4x8 MDF directly on the garage floor, since it lasered nice and flat. Gave a great working surface, no construction time and your really not using it for long. -Scott----- Original Message -----
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Pietenpol-List: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: "Rick Holland"
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RE: Pietenpol-List: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By:> Ryan Mueller
Ryan,I built two tables 2'X8', that way you can get both out of one piece ofply. I built the Flying and glider fuselage which is 25" high, so justscrew a piece of 2x4 on the edge where the bottom of the fuse hangs over,no problem.Skip > [Original Message]
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Post by matronics »

Original Posted By: "KMHeide, BA, CPO, FAAOP"
Hi,Here are some links to a table design I came up with that is similar to the EAAplan but easily adjustable for "not-so-flat" floors, like my sloppily pouredgarage. I use MDF for all top surfaces instead of ply because it resists warping.All you need is 2 metal saw horses (Home Depot, $20.00 each) some 3" x 3/4"pine and threaded rod. Everything folds up neatly when done. Less time building tables, more time building airplanes. (Not that that has beenhappening lately :(http://www.flyingwood.com/images/stab2. ... -----Glenn ThomasN?????http://www.flyingwood.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Mon, 28 Apr 2008 08:36:19 -0700 (PDT)
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Re: Pietenpol-List: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: "KMHeide, BA, CPO, FAAOP"
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RE: Pietenpol-List: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: "Phillips, Jack"
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Re: Pietenpol-List: Hand prop a Corvair?

Post by matronics »

Original Posted By: "Robert Butsch"
Robert:If you are using a Corvair you sill need at the very least a dynamo oralternator and a battery. Something has to provide the juice for thesparkplugs. Most folks use the permanent magnet generators of John Deeretractors or the Kubota units of the same manufacturer, like this:http://home.hiwaay.net/~langford/corvair/dynamo.htmlA battery in this application is an essential item, since you don't havedual plugs and mags some level of redundancy is accomplished via dualpoints, dual coils with a switcher and the battery as the engine will run onthe battery for about 45 minutes if using points ignition VS ECU electronicsthat are sensitive to low voltage levels.Otherwise you will need to figure out how to rig up a magneto. I am notsure anyone has gone this way. Magnetos are occasionally available fromafter market racing sources for the Corvair at quite high prices and ittypically is a unit that slips in place of the distributor but they areabout 12 inches tall (fit in the car ok) but rather tall for our use. Theseaftermarket mags are made for the drag racing community and as such Ibelieve they are good for the short hard burst but not intended for extendedcontinuous use as in an aircraft application. As I understand they weredesigned to prevent points bounce at high RPM drag racing.As for hand propping the corvair I am sure it has been done but it is notrecommended by the experts. The small automotive starters used are not sobad weightwise. I believe the recommendation is a unit from a Nissan sedan.If you backtrack through Mark Langford's page linked above I am sure you canfind the details on it. As for weight concerns the Corvair is lighter thanthe original Ford model A so keeping some weight up front is not nesesaily abad thing especially if building the original short fuselage Piet.Michael in Maine----- Original Message -----
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Re: Pietenpol-List: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: Isablcorky(at)aol.com
Subject: Re: Pietenpol-List: Work table thoughts, and rib jig done!As usual I took the path less traveled. I took a hard wood formica topped library reading table, an old hollow core door, a 4X8 sheet of 5/8 (I think) particle board./ Leveled the table to the basement floor then joined the doorto it and framed the rest with 2X4 and 4X4 legs and frame to get the full 16 feet then leveled it all and anchored to the basement support columns coveredthe entire top surface with the particle board. Deck screws really work well to hold the entire contraption together so when I fly out of the basement I can disassemble the bench and get the space back. For the time being its hometo my PietMakes for a really strong building platform at the perfect height and cost me very little to construct, not as sophisticated as many but its been doing the job quite wellI suppose it really becomes a matter of what you have available to work with in supplies and space that dictates the bench construction.JohnIn a message dated 4/28/2008 11:40:09 A.M. Eastern Daylight Time, kmheidecpo(at)yahoo.com writes:Hey Michael:I agree with the rest of the group and can add this: I used MDF boards and cut the width down to 3' wide thereabouts. I also added wheels to the bottom of the posts to make it moveable around in my garage. Then I screwed the edgesdown all away around and left the center alone. I added levelers to the center of each section so I could check and readjust to make sure it was level.That way I could move the table inside and outside during nice weekend days and keeping the table level.Ken HFargo, NDMichael Groah wrote:I made mine with two panels joined together to make a 30" by 16' table. It screwed together and when I was done using it I unscrewed it and stored it for use later on. It worked fine for ____________________________________ Be a better friend, newshound, and (http://www.matronics.com/Navigator?Pietenpol-List) (http://www.matronics.com/contribution) **************Need a new ride? Check out the largest site for U.S. used car listings at AOL Autos. (http://autos.aol.com/used?NCID=aolcmp00300000002851)________________________________________________________________________________
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Re: Pietenpol-List: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: "Rick Holland"
Subject: Re: Pietenpol-List: Work table thoughts, and rib jig done!In a message dated 4/28/2008 10:40:09 A.M. Central Daylight Time, kmheidecpo(at)yahoo.com writes:nice weekend daysAm I thinking of the Ken Heide, of Fargo and vicinity, that I know? Didn't know you had such weather. How many inches were measured yesterday?Corky in buuuuuuuutiful La. **************Need a new ride? Check out the largest site for U.S. used car listings at AOL Autos. (http://autos.aol.com/used?NCID=aolcmp00300000002851)________________________________________________________________________________Date: Mon, 28 Apr 2008 10:12:03 -0600
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Pietenpol-List: Re: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: "KMHeide, BA, CPO, FAAOP"
Thank you everyone for relaying your thoughts and experiences with your workbenchs.Plenty of good ideas. It will definitely help us choose what exactly to buildwhen we head to the garage this weekend.RyanRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Mon, 28 Apr 2008 14:48:22 -0700 (PDT)
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Re: Pietenpol-List: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: "KMHeide, BA, CPO, FAAOP"
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Re: Pietenpol-List: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: "ALAN LYSCARS"
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Re: Pietenpol-List: Re: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: Kringle
Early in my Piet project I made one large 4 X 16 feet table on casters.It has been extended by 2 more feet for my next project.With casters it easy to roll around with or without project on top.Of course your workspace might limit the size of your table.I do recommend plate mounted casters I beleive got them cheap at harbour freightNo need to screw in to the end grain if you do it my way, see pic.HansNX15KV-----Original Message-----
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Pietenpol-List: Re: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: Michael Perez
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Pietenpol-List: Re: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: "Catdesigns"
Are all of the pictured Piets in this thread built using the improved plans forthe horizontal stabilizer? If so, it might be an illusion because of the sweptends of the horizontal stabilizer in relation to the elevators.Someone needs to note their stick angle with a protractor when the elevator isheld in the neutral position on the ground and compare that to it's positionduring straight and level flight. Anyone have an Angle of Attack indicator on their Piet? Curt MerdanFlower Mound, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/img_ ... ___Subject: Pietenpol-List: Re: Work table thoughts, and rib jig done!
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Post by matronics »

Original Posted By: "C N Campbell"
KringleLook at the workbench in the following links. The legs are 2x4 (kiln dried). Each leg is 2 pieces screwed together to form an L. The bottom of each leg hasa 8-inch piece of 2x4 on the inside of the L. This is where the casters platesare screwed into the legs with small lag bolts. The top of the 8-inch pieceserves as a support for the shelf which in turn has 2x4s around the undersideparameter. The top is two solid core doors. The top is the same height asmy table saw so it can work as an out feed table. I move this workbench all overthe place including out to the back porch when I am ripping large quantitiesof wood. The wheels have stayed put just fine in the end grain. Add the castersand you wont regret it.http://www.westcoastpiet.com/images/Chr ... Sacramento, CAWestCoastPiet.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
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Re: Pietenpol-List: Pietenpol Tail Aerodynamics

Post by matronics »

Original Posted By: Michael Perez
Upside down airfoil would make the airplane more tail heavy, wouldn't it? ----- Original Message -----
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Re: Pietenpol-List: Pietenpol Tail Aerodynamics

Post by matronics »

Original Posted By: Michael Perez
The Zenith 701 has a inverted stabiliser.http://www.zenithair.com/stolch701/inde ... ______Date: Fri, 9 Dec 2011 11:16:04 -0800 (PST)
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Re: Pietenpol-List: Pietenpol Tail Aerodynamics

Post by matronics »

Original Posted By: gboothe5(at)comcast.net
Here's Chris Heintz's reason for the inverted airfoil on the horizontal stab ofhis 701 STOL design, and an explanation of how it works.Obviously, if it works on that plane, it would also be a good idea for the Pietenpol...;) (just kidding).Aircraft design isn't all cut and dried. It can be very complicated stuff. That'swhy I choose not to mess around with it. The Air Camper has a known characteristicof flying with a slightly drooping elevator in level flight. I'm okaywith that. I'm sticking to the plans.Bill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/zeni ... ___Subject: Re: Pietenpol-List: Pietenpol Tail Aerodynamics
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Re: Pietenpol-List: Pietenpol Tail Aerodynamics

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Original Posted By: Lloyd Smith
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________________________________________________________________________________Date: Fri, 9 Dec 2011 16:53:28 -0500Subject: Re: Pietenpol-List: Pietenpol Tail Aerodynamics
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Re: Pietenpol-List: Pietenpol Tail Aerodynamics

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Original Posted By: Lloyd Smith
Subject: Re: Pietenpol-List: Pietenpol Tail Aerodynamics
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Pietenpol-List: Re: Work table thoughts, and rib jig done!

Post by matronics »

Original Posted By: "Glenn Thomas"
> Subject: Pietenpol-List: Work table thoughts, and rib jig done!>>> Good morning,>> I wanted to what others experiences were regarding worktables. We'regoing to be setting up one bay of a two car garage with tables so we canbegin laying out the fuselage. I found a page at the EAA Chapter 1000 sitedetailing their worktable design:>> http://www.eaa1000.av.org/technicl/work ... blefig.htm>> They went with 2'X5' tables, and then they clamp them together as needed.Since we would need at least three of those end to end for length and wouldneed to build it slightly wider than 2', I thought we would scale up theirbasic design. I'm thinking two tables, 30" to 36" wide and 8 feet long. Twotables versus three decrease the potential for leveling/alignment issues,but would still be easier to move around than one long 15' to 16' table.Any suggestions?>> I also pretty much finished the rib jig this weekend. Very excited aboutthat. I hope to get a couple ribs done this week! The crankshaft is outbeing machined and nitrided, and the Stromberg just went out for overhaul.Feels good to be making a bit of progress.>> Have a good one,>> Ryan>>> Read this topic online here:>> http://forums.matronics.com/viewtopic.p ... 805#179805>>> Attachments: >> http://forums.matronics.com//files/ribj ... ___Subject: Pietenpol-List: Re: Work table thoughts, and rib jig done!
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