Brodhead Pietenpol Association

Original Posted By: Doug Dever
I'm pretty sure that my last tubing from Aircraft Spruce said "Germany" onit.Douwe________________________________________________________________________________

Original Posted By: "K5YAC"
I heard a story that Im hoping someone can verify that would help in the Wing StrutFork End concerns. To convince those arguing about struts, brackets andfittings, Bernard removed the struts from one of his planes and flew it aroundthe patch once to prove what he designed was sufficient. It was emphasized thatthis was done on a calm day and with a solid wing.Anyone one else ever hear this story?Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: 4130 tubing

Original Posted By: Michael Perez
Hmm, well then something doesn't jive. Either AS&S isn't getting their tubingfrom Dillsburg, or Dillsburg isn't getting his tubing from China. I hope thelatter is true, but it could also explain why he is the cheapest in the business.I'm about ready to build the kiddo a go-kart out of this crap and plunk downthe money for the good stuff, which I thought I was getting.I'll look at my material to see if there are any markings that indicate origin.I'll compare it to the stuff that I get from AS&S as well. I can say this...in comparison to a few pieces of 4130 that we have at work, the tubing I gotfrom Dillsburg looks like gas pipe. The material at work is from Jorgensen...the surfaces (especially inside) are very smooth and shiny. Not the case withthe Dillsburg tubing. In all fairness, I haven't taken the time to cut andclean a piece up, but I think I might do that this evening and bring it in tomorrow.Aww, the heck with it, I'm calling Vogelsong... Yep, I spoke to his secretary and she confirmed it... Chinese tubing. She alsotold me that his son (mentioned in another thread) no longer works for him. I said, "Imagine that." She came right out and said it... he really doesn't careanymore. People have tried to talk to him, but he makes it clear to themthat he is in charge and the place will be run the way he wants. I can somewhatunderstand that, but at some point it will be run into the ground. Jorgensen says no way on Chinese tube... 70%-80% of their 4130 tubing is domestic,but some comes from England, Germany or other European locations. I'll bechecking with Trident, AS&S and others just out of curiosity. The Jorgensenrep did tell me to look closely at the line marking and that it should state notonly what type and dimension, but what mill it was run at as well as what ATSMstandard it meets. He also said that we could line up tubing from 5 differentvendors and that all of them would look slightly different as far as finish,so that is no way to compare. The only way to know for sure is to take samplesto Sherry Labs (local) and have them test it. I could probably reorderthe entire batch from a reputible outfit for less.--------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 11 Jan 2011 11:23:00 -0800 (PST)

Original Posted By: Kenneth Bickers
Subject: Re: Pietenpol-List: Re: 4130 tubing

Original Posted By: "K5YAC"
I note that tubing from the USA and Germany have a oily black look to them inside and out. the Chinese 4130 tubing has gray sandy look to it. On the lathe it does not cut smooth. It has a ASTM number as well as the dimensions on the tube but only on one end. It came with paperwork that said it matched the Mil Spec and ASTM standards.Ernie MorenoPiet 2431----- Original Message -----

Original Posted By: TOM MICHELLE BRANT
The tubing I got from AS&S was from both Benteler (Germany) and Plymouth TubeProMoly (US). Curt MerdanFlower Mound, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________

Original Posted By: speedbrake(at)sbcglobal.net
should work - I may steal the idea myself - thanks for sharing.Tom B.Date: Tue=2C 11 Jan 2011 18:05:11 -0800

Original Posted By: "DOMIT"
Thanks Michael, good start!KIp GardnerOn Jan 11, 2011, at 9:05 PM, Michael Perez wrote:> For whomever it was asking, here is a simple drawing of a simple > idea. There is a lot of room for change and improvement here, this > was what I came up with right off the bat.>> Michael Perez> Karetaker Aero> www.karetakeraero.com> ________________________________________________________________________________Subject: Pietenpol-List: Re: Adjustable Wood Wing Strut Fitting

Original Posted By: "Clif Dawson"
Nice! I might steal that for the project I'm involved with.--------Brad "DOMIT" SmithFirst rule of ground school: This is the ground... don't hit it going fast.Read this topic online here:http://forums.matronics.com/viewtopic.p ... __________