Brodhead Pietenpol Association

Original Posted By: "John Francis"
Subject: Re: Pietenpol-List: Re: round tube wing strutsBill, thank you for your response, I know about the drag, so I am going todo this http://vgmk1.blogspot.com/search?q=aerodinamisacionand of course, steel tube, I do not know what by the moment, I do not wantto repeat things about availability of anything here. anything in itsmoment.Thank you very much, regards.Mario Giacummo2013/9/18 Bill Church > billspiet(at)sympatico.ca>>> Mario,> I assume you are talking about using chro-moly steel (4130) round tube,> and not aluminum tube. The streamline tubing in the photo is an extruded> aluminum shape. It is not recommended to weld aluminum that is to be used> as a structural member, as it can significantly weaken the metal in the> weld zone. That is the reason why there is an aluminum block inside,> secured with bolts. When using steel, you have the advantage of being able> to weld without compromising the strength of the tube. For the inner> threaded part, you can purchase wing strut barrels> http://www.aircraftspruce.com/catalog/a ... ckkey=3621> (Aircraft Spruce part no 05-05900), which can be welded into the ends of> your steel tube struts.> One point to consider, when using round tubes for your struts is that they> will create a lot of drag. Round struts really are not aerodynamically> "clean". You should give serious thought about adding some kind of> fairings to streamline the tubes.> Hope that helps.> Bill C.>>> Read this topic online here:>> http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: New Engine to replace Corvair

Original Posted By: Jack
My new engine showed up today to replace the Corvair I was originally going toinstall.--------John FrancisRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/imag ... ___Subject: Re: Pietenpol-List: New Engine to replace Corvair

Original Posted By: "David"
That should help your CG problem!Sent from my iPadJack TextorOn Sep 18, 2013, at 7:39 PM, "John Francis" wrote:> > My new engine showed up today to replace the Corvair I was originally going toinstall.> > --------> John Francis> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 819#408819> > > > > Attachments: > > http://forums.matronics.com//files/imag ... 78_353.jpg> > > > > > > ________________________________________________________________________________

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Thanks everyone for the kind welcome.We will be sure to check out the gathering in June next year.I am working on the Bingelis books on eBay, and have been trying to acquirea Corvair engine. This will be a long term project for the kids and I(there's 5 of them) and we are also building a 1/5 scale RC model as well.One initial question about wood - I have read that Douglas Fir can be usedas an alternative to Spruce. Is this a reasonable assumption? If so, cansomeone point me towards a suitable source, preferably on the West Coast? To foster some enthusiasm with the kids I'd like to get a few wing ribs done- even if they end up on the wall as decoration - and I'm prepared to usethe construction of these as a learning and bonding experience (punintended).Thanks again, Dave-----Original Message-----

Original Posted By: Michael Groah
And should swing a nice long prop.On Sep 18, 2013, at 6:46 PM, Jack wrote:> > That should help your CG problem!> > Sent from my iPad> Jack Textor> > On Sep 18, 2013, at 7:39 PM, "John Francis" wrote:> >> >> My new engine showed up today to replace the Corvair I was originally goingto install.>> >> -------->> John Francis>> >> >> >> >> Read this topic online here:>> >> http://forums.matronics.com/viewtopic.p ... 819#408819>> >> >> >> >> Attachments: >> >> http://forums.matronics.com//files/imag ... 78_353.jpg> > > > > ________________________________________________________________________________Date: Wed, 18 Sep 2013 20:23:24 -0700 (PDT)

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Dave,Welcome! My Piet is in Lincoln (LHM), just northeast of Sacramento. It isbuilt mostly with Poplar, some of which I purchased from my local big boxaircraft supply store (Lowe's); but the longer pieces were purchased from alocal hardwood and flooring store. It's easiest when you can find a localsupplier and hand pick your pieces. Chances are, you could even go to yourlocal lumber supply, tell them you want clear, vertical grain boards (don'tsay it's for an airplane), and they will be able to get it for you. AC43.13 allows Doug Fir as a direct substitute, even allowing for lesserdimensions as the wood is stronger than spruce. Contact me off list, if youwish to discuss suitable grain. Gboothe5(at)comcast.net. Gary BootheNX308MB-----Original Message-----

Original Posted By: "Bill Church"
I just sprayed a mouthful of scotch (it's 4pm here...) when this post opened up!Kinda expecting a engine debate starter, wondering if I was gonna see a picof a ford or a continental... Nicely done!So you gonna change the gear too?Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: First Post

Original Posted By: "Barry Davis"
Hey Dave,Rather than spending a bunch of time searching ebay for the Bingelis books, whydon't you just order the set from EAA? $90 for all four books. Brand new. One stop shopping. One shipping charge. http://www.shopeaa.com/bingelissetof4.aspxBill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________

Original Posted By: owner-pietenpol-list-server(at)matronics.com
I'm glad you got the aluminum valve covers!BarryNx973bp-----Original Message-----

Original Posted By: "AircamperN11MS"
Just how big would a Pietenpol need to be to wear this engine? I'm sure someoneon this list is smart enough to scale this and even provide dimensions. Yesthis is a challenge. Would I fly it? Heck yes!!!! Would we use a couple ofold Ferris Wheels for the main wheels?--------Scott LiefeldFlying N11MS since March 1972Steel TubeC-85-12Wire WheelsBrodhead in 1996Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: New Engine to replace Corvair

Original Posted By: Oscar Zuniga
Just how big would a Pietenpol need to be to wear this engine? I'm sure someoneon this list is smart enough to scale this and even provide dimensions. Yes thisis a challenge. Would I fly it? Heck yes!!!! Would we use a couple of oldFerris Wheels for the main wheels?--------Scott LiefeldFlying N11MS since March 1972Steel TubeC-85-12Wire WheelsBrodhead in 1996Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________

Original Posted By: "AircamperN11MS"
David=3BIt sounds like you got your questions answered (about wood selection). Meanwhile=2C if you have kids involved and you want to start with something tangible=2C I'll reiterate something that I posted earlier (probably before you joined the list): consider building a quickie fuselage mock-up out of lumber scraps or inexpensive hardware-store materials. All you need is the section from the firewall to the pilot's seat back. It will give you a great feel for the geometry and ergonomics of the Piet cockpit=2C and it's something that the kids can help assemble and then climb all over without worrying about damaging it. If you later want to hang it from a tree limb and make it into a swing=2C that's fine too. No need to measure or cut to the nearest 1/32"... nothing is critical.You should be able to find some inexpensive lumber and plywood and then whip together the mock-up with a brad gun=2C stapler=2C or drywall screws in a jiffy. Won't even require glue joints=2C although you could use Gorilla or wood glue and really make it sturdy.Latex paint=2C of course =3Bo)Oscar ZunigaMedford=2C ORAir Camper NX41CC "Scout"A75 power ________________________________________________________________________________Subject: Pietenpol-List: Re: First Post

Original Posted By: Gary Boothe
Opps, Still had the other thread on my mind while looking at this one. Bad Scott--------Scott LiefeldFlying N11MS since March 1972Steel TubeC-85-12Wire WheelsBrodhead in 1996Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: New Engine to replace Corvair

Original Posted By:> owner-pietenpol-list-server(at)matronics.com
...and the hp will be similar.Sent from my iPhoneOn Sep 19, 2013, at 8:29 AM, "Barry Davis" wrote:> > I'm glad you got the aluminum valve covers!> > Barry> Nx973bp> > -----Original Message-----

Original Posted By: Jim Boyer

Original Posted By: Rick Holland
Subject: Re: Pietenpol-List: First Post