Tweet
Hank, That was me asking. I will call the folks with this info and if they can work and obtain the wire will see if they can get it...Next Question What type of metal is it???
-
-
Roll forming wire can be a little rough in diameter if the dies are wornN29787
'41 BC12-65Comment
-
Hank, what is the type metal materialComment
-
Shiny on the newer wire, kind of dull on the old stuff. Afraid I haven't had access to a materials lab since the late 90s. Sure was fun when I did. I could disappear in there to play with all the toys for days! Engineering was fun! Like making a living in a toy store! I was always finding interesting stuff to look at under the SEM.
HankComment
-
I re-used my 1946 wire. It's definitely "corrosion resistant" and certainly not plated but not necessarily stainless.
Comment
-
I have some really old pieces and you are right. It doesn't seem to rust.
HankComment
-
Well ....BINGO !!!. I have a company I am sending the sample of Taylorcraft Wire to that can work with our dimension wire !!
Stay tuned
JimComment
-
YEEE HAAAAA!!!! Finally!
Comment
-
I have a friend coming to see me this weekend; he has a range of Niton portable X-ray analysers and is confident of being able to determine the chemical composition of the wire. I'll be using original Taylorcraft wire as the sample, not Martin wire.
Example link: https://www.nitonuk.co.uk/xl5/
It's obviously some form of spring steel, corrosion resistant, and hopefully we can get the exact specification.
RobComment
-
That is an important issue . Would not want some crap to be used that rusts!!Originally posted by Robert Lees View Post
Thank you Rob. It looks like things are finally coming together in a safe logical manner for the awning wire.Comment
-
Jim, I have a Taylorcraft drawing as mentioned before and the Aeronca drawing. I'll share with you as mentioned before. PM me with your email. I also have an Autocad file of the Tcraft wire shape in addition to the 2D drawing.
The Aeronca dwg is a copy of the Tcraft idea and this drawing appears to be a legit copy of the released engineering drawing. I had the Tcraft drawing made from a piece of Taylorcraft wire.
The Aeronca material call out is: 0.031 Dia, Spring Music Wire, Specification AN-W-15.
The Martin material call out is Stainless Steel 302H.
MarkMark
1945 BC12-D
N39911, #6564Comment
-
Mark,
Thank you for the material call out! I figured it was a stainless material.
Please e mail the taylorcraft drawing to my personal e mail [email protected]. I really do not want to the Aeronca drawings. Think I have them already any wayComment
-
Hi Jim,
Sent you a bunch of files, 2D, solid model, and autocad flle. plus some other file info that might help the cause. If you can do a full scale print on a plotter it would be good to lay your piece over the drawing to see how it compares to the piece we did the drawings from.
MarkMark
1945 BC12-D
N39911, #6564Comment
-
Ok have the files from Mark, Have the sample in. a tube ready to mail (I do need to check that sample against what is currently in my wings as I am now noting it is not lying completely flat between the holes....) Dad and his partner were doing this back in 1966 and the information we now exchange was just not there even though the plane ws being restored in Mars PA... NW Pittsburgh PA not terrably far from Alliance . They my have used Martin wire! The samples I have from Hank that will be mailed are definitely correct and will give a definitive answer on that. Long story short if we get this worked out I may be the first customer from our roll!!Comment
-
As promised, I watched the XRF analysis of the samples I have of original 1940s Taylorcraft wire. It seems closest to Stainless 303, rather than 304 (and certainly not 302H like the Martin wire), although there was a suggestion of Potassium in the mix that might have caused the chemical confusion (and this could be due to skin contamination of the small diameter wire samples).
I'll post the full chemical/elemental results when they are forwarded to me. The hand-held XRF analyser used costs more than £35,000 + X-ray training to purchase; it'll analyse anything inert (food, metal, paper, etc) and tell you its composition.
My friend is their chief Sales Manager, and he owed me a favour!
Comment
Comment