Brodhead Pietenpol Association

Original Posted By: Amsafetc
>Ken,Since you are modifying the arrangement from that shown in the plans, you need to ensure that your modifications will result in basically the same performance as the plans-built system.The net result you are looking for is to ensure that the control surfaces will deflect the proper amount based on normal control stick movements. The plans do not specify the recommended throws for each of the different control surfaces, and there has been some discussion about this in the past (check the archives). However, in the UK, homebuilt aircraft are much more regulated than in North America, and the Light Aircraft Association has produced a set of Type Acceptance Data Sheets for each aircraft approved for manufacture in the UK, and there is one for the Pietenpol Air Camper (see link below). Page 4 of the latest revision of the Pietenpol TADS lists 20=C2=B0 up and 20=C2=B0 down for the recommended elevator deflections. The number of degrees of deflection of the control stick or bellcrank arm is less important than the actual deflection of the control surfaces. However, the length of the bellcrank should be very close to the dimensions of the elevator control horn connections, so the deflections of the two should also be very close.I would suggest that you add the elevator control horns to your mock-up and see what your resulting elevator deflection is. I haven't built my control system yet, so I can't provide personal empirical data but it seems odd that it would require the full use of all possible space to achieve the desired elevator deflections (if I understand you correctly, in saying that the control stick hits the seat front or back in order to achieve the throws you are measuring). Maybe others can comment on that.Basically, every Pietenpol is unique - (some more than others) - and every little change can have numerous effects. Just make sure that you will be able to achieve the recommended deflections AS A MINIMUM. You can always install stops to prevent too much throw, but you won't be able to add more throw if you have nowhere for the stick to go.http://www.lightaircraftassociation.co. ... ER.pdfBill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... 8#351688le, List Admin.________________________________________________________________________________Subject: Re: Pietenpol-List: Just ordering plans.....Questions

Original Posted By: KM Heide CPO/FAAOP
I am just ordering plans for my Pietenpol. I do have some questions of all of you!I am curious as to the landing gear as in the plan and as seen in a few pic onthe internet.The plans have wood LG and some of the Pics I've seen have a modern metal LG. Whereis this option available from if anybody knows.....Thanks, And Hello to All, Bill Emidy :DRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 7 Sep 2011 16:23:56 -0700 (PDT)

Original Posted By: Ryan Mueller
Hello Billy and welcome I am in the midst of my build and up on my wooden gear.I been at it for, well let's say less than a year ( in dogs life years) and thelike most, a resident smart ass with still too many questions and few answershowever you my good man are in luck. The information you seek cannot be foundin the drawings you must read the book and if you look carefully at addendum14.1 the information and enlightenment you seek will become yours. Now whileI flaunt my expert wisdom I will provide additional guidance at no extra charge.Invest in your library and spring for the Tony Bengelis series of books. Thosealong with renting , purchasing or borrowing a copy of the TGEP or in more lesssophisticated and refined circles it's known as The Great Waldo Pepper. Therein lies answers to all of the rest of life's problems and situations. From thatmeager start you will be will prepared to attend Mecca in July Brodhead whichI encourage you to attend. I leave you with a welcome to the group a laurel and hardy handshake and the hopeto see your active progress reports as you ask all of the same questions weal did. Welcome to the best bunch of folks I have had the good fortune to become associatedwith and remember Smile son never disconcert the massesJohnNX895JR LNS 5.5Sent from my iPhoneOn Sep 7, 2011, at 6:59 PM, "ribill7" wrote:> > I am just ordering plans for my Pietenpol. I do have some questions of all ofyou!> I am curious as to the landing gear as in the plan and as seen in a few pic onthe internet.> The plans have wood LG and some of the Pics I've seen have a modern metal LG.Where is this option available from if anybody knows.....> > Thanks,> And Hello to All,> Bill Emidy > > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 696#351696> > > > > > > > > > ________________________________________________________________________________Date: Wed, 7 Sep 2011 19:45:08 -0500Subject: Re: Pietenpol-List: Just ordering plans.....Questions

Original Posted By: "Jerry Dotson"
Here is a microsoft excel spreadsheet that will calculate the thickness, tangents,Angles, and length of the airfoil Chord at each station. I've attatched itas a PDF. The notes on the sheet should allow anyone to create their own spreadsheet,but if anyone wants the actual spreadsheet send me an email and I'llattach a copy for you. I also have a spreadsheet that calculates that dimensionsof a Clark Y airfoil for any given Chord length. I simply draw the airfoilson graph paper. I need some CAD software to draw the airfoils... Dan WisonRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/prop ... ___Subject: Pietenpol-List: Re: Prop Carving CD

Original Posted By: johnwoods(at)westnet.com.au
Dan,FreeCad is free and a viable option. I don't use it so I probably can't help youget started with it. As with any Cad program the learning curve is pretty steepbut if you are willing to spend the time learning it will be a lot of helpin the future. When I went from CadKey to AutoCad there was a lot to learn.http://sourceforge.net/apps/mediawiki/f ... -----Jerry Dotson59 Daniel Johnson RdBaker, FL 32531Started building NX510JD July, 2009now covering21" wheelsLycoming O-235Jay Anderson CloudCars propRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Thu, 8 Sep 2011 19:52:49 +0800 (WST)

Original Posted By: Jim Markle
Hey thanks to everybody that gave some input.........BillRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sat, 10 Sep 2011 20:55:41 -0500 (GMT-05:00)