Pietenpol-List: Spring Landing Gear.

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Original Posted By: Charles Burkholder

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Original Posted By: owner-pietenpol-list-server(at)matronics.com
Here is one wayhttp://westcoastpiet.com/images/Construction/Untitled-1.JPGChrisSacramento, CAWestcoastPiet.com-----Original Message-----

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Original Posted By: owner-pietenpol-list-server(at)matronics.com
And another oneChrisSacramento, CAWestcoastPiet.com-----Original Message-----

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Original Posted By: Jack
Thanks go to Josh Brownell for allowing us to get the original Dixie Mag Switchback. Josh had purchased it for his Taper Wing, but knew how important it wasto put it back with Blitzkrieg Piet. Looking forward to trailering up to GrassRootsto pick up the project and collect Ed Sampson's wing (from MN). That andseeing the great gang of antiquers who make GrassRoots the best fly in around.Photo is Ed with his masterpiece.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/wing ... ___Subject: Re: Pietenpol-List: Spring Landing Gear.

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Original Posted By: "jarheadpilot82"
Andrew, did you get my private message on the original seat belt?RobRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Spring Landing Gear.

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Original Posted By: "womenfly2"
Charles,Here is another way of doing it, from William Wynne's website-http://flycorvair.net/2012/10/27/new-di ... ----Semper Fi,Terry HandAthens, GARead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: beautiful Micro Mong latex paint

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Original Posted By: Doug
Really interesting an a great how-to video. Would never guess it was house paint,impressive.Has anyone tried this as a top-coat? Sher-Clear 1K - Acrylic Clear Coat (http://protective.sherwin-williams.com/ ... oduct-6794)Comes in High-Gloss, Semi-Gloss and Flat.Just curious,WF2--------Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________

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Original Posted By:> Love2Fly.KAP(at)gmail.com
I would be afraid of using it over latex w/o consulting Sherwin Williams. It says industrial waterborne coatings which is a totally different animal than latex. While both are waterborn one is a latex base and the other is an acrylic base. Most probably a catalyzed acrylic urethane. And if yo can get the gloss with a single coat system wy bother with a base coat/clear coat.Doug Dever=0AIn beautiful Stow Ohio> Subject: Pietenpol-List: Re: beautiful Micro Mong latex paint

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Original Posted By: Doug
Just talked to Sherwin Williams Marine Dept and they stated that it would be noissue to apply it over any of their latex house paints once they are cured. Ithas the same flexibility as the latex so it will move with it and bond to it.It will also give better UV and surface protection then latex itself. Being a waterborneacrylic it is optically clear, no yellow tint or fading yellow. Theysaid its a high quality clear commercial/industrial topcoat.I may just purchase a quart and try it, sounds like a good top coat over the houselatex for a high gloss, Semi-gloss or Mil-flat finish without all the polishingwork.WF2--------Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________

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Original Posted By:> Love2Fly.KAP(at)gmail.com
Good to know. Latex is not known for it's UV resistance. Even exterior high gloss starts going dull in less than a year.Doug Dever=0AIn beautiful Stow Ohio> Subject: Pietenpol-List: Re: beautiful Micro Mong latex paint

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Original Posted By: Gloriabots
Subject: Re: Pietenpol-List: Re: Spring Landing Gear.Charles,In the text below the picture of the spring, William notes: "The springsare available from A/C spruce for about $100. Their rating is 1200pounds per inch. They are 1=B3 ID, 2=B3 OD, and 6=B3 long."http://www.aircraftspruce.com/catalog/l ... key=3516On Wed, Aug 27, 2014 at 6:55 AM, Charles Burkholder wrote:> born2fly(at)abcmailbox.net>>> Thankyou folks. My next question is where did you all get the steel> springs?>> On 8/26/2014 7:11 AM, jarheadpilot82 wrote:>>> jarheadpilot82(at)hotmail.com>>>>> Charles,>>>> Here is another way of doing it, from William Wynne's website->>>> http://flycorvair.net/2012/10/27/new-di ... g-landing->> gear-on-a-pietenpol-10-a-m-4-p-m/>>>> -------->> Semper Fi,>>>> Terry Hand>> Athens, GA>>>>>>>>>> Read this topic online here:>>>> http://forums.matronics.com/viewtopic.p ... 340#429340>>>>>>>>>>>>>>>>>>>>>>>> ----->> No virus found in this message.>> Checked by AVG - www.avg.com>>>>>>> --> Charles Burkholder> Visit my blog @ http://missionmechfund.blogspot.ca/>>== ... __________

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Original Posted By: "jarheadpilot82"
CharlesI used these in WW Landing Struts.They are great and provide good shock absorption.http://www.aircraftspruce.com/catalog/l ... ___Subject: Pietenpol-List: Re: Spring Landing Gear.

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Original Posted By: Michael Perez
Charles,Attached is a copy of my invoice from a Company called Diamond Wire. Better pricethan ACS.--------Semper Fi,Terry HandAthens, GARead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/diam ... ______Date: Wed, 27 Aug 2014 09:08:07 -0700

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Original Posted By: "JVG"
Hello, Jack Textor recomended me the following to seal my tank:Hi Mario I thought riveting would be easier than welding. I used pop rivets andsealed with something like proseal. Here is where I got it. I used the quart.http://vansaircraft.com/cgi-bin/store.c ... ct=proseal I've tested with air and it looks ok.may be can help.regards--------Mario GiacummoPhotos here: http://goo.gl/wh7M4Little Blog : http://vgmk1.blogspot.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________

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Original Posted By: owner-pietenpol-list-server(at)matronics.com
My son poked a pretty good hole in his oil pan on his car and I drained theoil, cleaned the hole with alcohol and sanded around the hole. Then appliedJB Weld. After it dried for 24 hours I sanded it again and applied anothercoat. Never had a leak after that and he had the car for 6 years after that.JerrySkyclassic Aircraft

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Original Posted By: owner-pietenpol-list-server(at)matronics.com
I'd weld it, but that's just me. Problem is, if you don't fix it, everytime you see oil, you'll wonder if it is the pinhole or something moreserious leaking.Jack PhillipsNX899JPSmith Mountain Lake, Virginia _____

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Original Posted By: "taildrags"
Might be worthwhile removing the tank and inspecting the inside. The pinhole maybe the first external sign of more widespread internal issues. Regardlessof the repair method (I side with Jack) it'll be easier to clean and prep withthe tank on a clean workbench. You've published pictures of your shop so I KNOWyou're workbenches are clean.DaveRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: More notes on CG, axle location and weight

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Original Posted By: "William Wynne"
I gave William all of my W&B information, along with measurements, when he wasassembling his database of Piet CGs, axle locations, and weights, so I'm not providingany new information here... just repeating another data point for thosewho do not have the complete listing of all the airplanes that William andothers have put together. Since the stated purpose of the Experimental categoryfor aircraft is for research and education, I'm certainly being educated bythe research that is being conducted here and would like to help with that aswell.NX41CC has an empty weight of 636 lbs., an empty CG location 12.2" aft of the wingleading edge datum, and the main gear axles are 5.8" aft of that leading edgedatum... certainly not within the 0-3" range recommended by Mr. Pietenpol.The wing on my airplane is canted aft by pivoting on the cabanes, 3.5" if Iremember correctly, but you can already see that my airplane fits "the pattern"that William is trying to point out.My airplane has brakes and it has been on its back, but the proximate cause ofits ending up there was that the landing gear folded up after a weld broke duringan engine-out, off-airport landing to an unimproved field.My airplane now has an A75 but it previously had an A65 and I have experience carryingpassengers in both configurations. The point that William was tryingto make with one of the questions in his "quiz" is that climb rate is a factorof excess thrust, and excess thrust is defined as any that is available overand above that which is required to overcome drag. My airplane with the A65 hadenough thrust to overcome the drag and make some climb, but the A75 has moreexcess thrust and so can produce better climb. Put 90-100 HP on the nose andthat's 15-25 HP of even more excess thrust that can be generated and you seethat anything you add is going to be excess and can contribute to climb (withthe right propeller).Switch off again.--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: More notes on CG, axle location and weight

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Original Posted By: Michael Perez
To add to OZ's comments: One of the things about Piet CG that is hard to grasp at a glance in comparisonsis that you can look at two planes that both have an empty weight CG of 12",but they will take very different maximum pilot weights. The reason for thisis because the relationship between the wing and the pilot's seat location isa variable controlled by the location of the cabanes. Very few other planes arelike this, and if you are coming from any other aircraft experience, it is easyto look at CG comparisons and forget that on a Pietenpol you have to lookat the individual plane in question.On other planes, this is not the same kind of issue. On a Zenith 601XL the CG rangeis 10.8" to 18". If guy a offers a W&B report that says his plane has anEWCG of 12" and he gives loading information to another guy with a 12" EWCG, thanthe second guy can use this because there is little variation in the planes,but the biggest variable is fixed, as the pilot and passenger in a 601XL areboth always at 28". Only in a Piet is this a variable, which precludes usingplane to plane comparisons without an individual weighing and calculation. Itis also a potent variable because of how far the pilot sits away from the CGof the Piet. These two elements are what makes the Piet CG different from otherplanes. BTW, if you would like to see a first class pilots operating handbook, look at this: http://www.newplane.com/amd_downloads/M ... lbs.pdfAMD is the certified branch of Zenith, they have very good engineering talent,and they published this expanded version 113 page book after the incredible worldwide scrutiny that followed several wing failures in 2006. (I will assureanyone that these were caused by careless operation outside of published limitsnot the design) The 601XL and its documentation has now been reviewed by moreengineers, and agencies than any experimental in history, and if the designhad actually been at fault, they would have been sued out of existence, but thisnever happened. Because of this review, the POH for this plane can be consideredan outstanding example for an experimental plane. Your Piet will not needone like this, but it is worth looking at all the chapter headings and thinkingabout putting together your own abbreviated version of this for your Piet.Besides all the learning benefits, your DAR will pass your inspection a lot easierif you have something like this to assure him you are not just going tosay "Kick the tire and light the fire!" on your first flight.Section four in this book is the W&B info, and it is well worth looking at becauseit describes many of the terms we use graphically. For rough comparison, the601XL has a Riblett airfoil of 60" root cord, same as a Piet. The aft CG limiton the Piet and the 601 are both are about 30% of mean aerodynamic cord. Althoughthey are different planes and airfoils, many principles of stability andcontrol on light aircraft transcend these differences. The Piet's aft limitof 20" is actually 33% of the cord, but the general comparisons show that BHP'snumbers are in line with aeronautical engineering practices used by large companieseven today. The man was far more intelligent than the "flying farmer"myth.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Thu, 28 Aug 2014 05:43:18 -0700

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Original Posted By: "womenfly2"
> To: pietenpol-list(at)matronics.com> >> > Really interesting an a great how-to video. Would never guess it was house paint=2C impressive.> > Has anyone tried this as a top-coat? Sher-Clear 1K - Acrylic Clear Coat (http://protective.sherwin-williams.com/ ... oduct-6794)> > Comes in High-Gloss=2C Semi-Gloss and Flat.> > Just curious=2C> WF2> > --------> > > > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 352#429352> > > > > > > ============================================> > > ________________________________________________________________________________Subject: Pietenpol-List: Re: beautiful Micro Mong latex paint