Brodhead Pietenpol Association

Original Posted By: "Gary Boothe"
We started putting it back together today. Piet is on it's feet. Pictures not the best but you can see what it will look like. The wings are painted like the stabilizer. Thats my son in the picture. Bob________________________________________________________________________________

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Outstanding! Another beautiful job on its way. Where do you live, Bob?Jack PhillipsNX899JPSmith Mountain Lake, Virginia _____

Original Posted By: Jim Markle

Original Posted By: owner-pietenpol-list-server(at)matronics.com [mailto:owner-pietenpol-list-server(at)matronics.com] On Behalf Of Jim Markle
Mix MMO with a small amount of fuel and pour into the tank...Oh, wait....No, justpour into the tank, then add fuel....No, wait....pour MMO into full tank....Oh,Hell, just fuel it up and go! I do have one thought, though...not to be a wet blanket...but: I was in a similarposition, many years ago. There was a landing accident (OK, I broke an axle),but learned afterwards that the owner had just had a guy re-weld that axleand it was clear that it was a poor weld. Still, I felt responsible, but didn'thave the $$$ to help with repairs. The owner assured me it wasn't my fault,but I always felt guilty. Lesson I learned: Never borrow what I can't affordto replace.Gary from CoolNX308MB-----Original Message-----

Original Posted By: "K5YAC"
Ralph,The plans don't list deflections for any of the control surfaces, but in the UK,the LAA has documented the recommended travels, and shows typical aileron deflectionto be 15 Up and 20 Down (that translates to about 3" up and 3 1/2" down.http://www.lightaircraftassociation.co. ... ER.pdfBill C.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: another step forward

Original Posted By: "Kringle"
Wow, Branson! Cool! Another Piet to pick up on the Texas - Oklahoma - Arkansas- Kansas - Missouri to Brodhead route! Should be quiet an arrival from thesouthwest in a couple of years.--------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Wing Tip Bows

Original Posted By: helspersew(at)aol.com
I was searching for comments on the construction of wing tip bows and found thisthread. This week my local EAA chapter is meeting at my place to look at myproject and help me trammel my right wing. I have not made my wing tip bowsyet so I temporarily slid in a compression strut at the tip. This should surfice,agreed? I couldn't find a good thread on the construction of the tips so if anyone canpoint me in a good direction, I would appreciate it.John--------JohnRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: another step forward

Original Posted By: "Jack Phillips"
Wow Bob, a stunning example. I must say that the fabric-covered cockpit cowling is very nice looking and different than I have seen. It must be plywood? Very smooth and contiguous. Looking forward to seeing another great Piet at Brodhead this year. I think our numbers are really going to explode in the next few years.Dan HelsperPuryear, TN ________________________________________________________________________________

Original Posted By: owner-pietenpol-list-server(at)matronics.com
John,You need to go ahead and make the wing tips, since they provide thecompression strut at the tip. You can't trammel a wing with a temporarystrut and then remove the temporary and replace it with a permanent strut.For one thing, I doubt you could remove the temporary strut once you havethe drag and anti-drag wires tensioned properly.Trammeling a wing is not difficult, but it helps to have two people to doit. It also helps to have a couple of Trammel Points mounted on a longlight stick (a piece of spruce will do) as a trammel bar. You can do itwith a tape measure, but not as accurately as with trammel points (you canbuy them at ACS).The procedure is to get the wing laying flat on sawhorses, take the fixedtrammel point and punch it into the top of the spar at the intersection ofthe spar centerline and the drag wire or anti-drag wire fitting. Then swingthe trammel bar over so that it is pointing toward the intersection on theother spar where the wires attach and punch the trammel point into the topof that spar over the spar centerline, and the intersection point of thewires. Now lift the trammel bar and reverse it. In other words, if you started atthe wingtip with the first trammel point in the front spar and the secondpoint in the rear spar at the middle where the wires attach, you would movethe first point to the rear spar at the tip and the second point to thefront spar at the wire attach point. If the wing is square and true (notlikely at this point) the second point will be exactly on the sparcenterline over the intersection point of the bracing wires. If not, youneed to start adjusting turnbuckles until it does line up. Then put thetrammel bar n the original position and see if it will line up. Keep makingadjustments like that until that bay is true and square. Then do the otherbay in the same manner. Once each bay is trammeled, you should be able topick up the trammel bar and set in place in either the drag or anti-dragposition and the points should just drop into place on the spar centerlinedirectly above the intersection point of the wires.By the time you have the entire wing square and true, your wires should bereasonably tight, but if not yu can tighten them until they generate a nice"Thummm" when plucked. Just remember that to keep the wing true, you willneed to tighten them equally (if you turn the drag wire turnbuckle one-halfturn, you need to turn the anti-drag wire turnbuckle the same amount, in thesame direction). Once you have the wing trammeled and true, with the wirestight you should go ahead and safetywire the turnbuckles so they won't move.You should never have to trammel it again unless something breaks or shifts.This is why you can't do it with a temporary compression strut.If this is not clear, let me know and I'll try to draw some pictures toexplain the process. Does your EAA Chapter have a Technical Counselor? Ifso, he should be able to explain and demonstrate the process for you, and heprobably has a set of trammel points to use.Good Luck!Jack PhillipsNX899JPSmith Mountain Lake, Virginia-----Original Message-----

Original Posted By: Ben Charvet
Jack, thanks for the response. My technical advisor is helping me set this up.He is going to show the group the proper way to trammel a wing and told me ifthe wing is not ready it is no big deal as he will just talk his way throughit. Since I don't have my leading and trailing edge finished I'm not sure Ican complete the wing tips yet?--------JohnRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sun, 15 Apr 2012 08:04:54 -0400