[TowerTalk] Aluminum tubing needed

[Bob Matthews]

Supplies of 3 inch aircraft tubing seem to be in very limited supply if not unattainable at all at the time. 

The common wall thickness you need is a. ,058 wall thickness this will normally allow tubing diameters of lesser values of 1/8 inch to slide inside the larger. IE  3 inch .058 connected vis 2.875. X .058 wall thickness. 

Or 2.875x .058 connected with 2.750 x .058 inches. You can increment these sizes down to 1/2 inch tubing. 

Normally DCE has a good supply however these days getting stock on shelves is a bit of a challenge. If I had a piece of 3 inch x .059 wall I would send it to you. But it seems even my supply of scraps are limited now. 

Bob KT3RR 


Sent from my iPhone

> On Dec 25, 2021, at 06:59, Brad Anbro <n9en at live.com> wrote:
> 
> Hello all and Merry Christmas!
> 
> I am looking for a short piece of aluminum tubing with which to repair the boom on a home-made copy of a KLM yagi antenna.
> 
> I need a 39" long piece of 3" outside diameter tubing with a 0.055" wall thickness. I cannot seem to find this size listed in any of the steel & aluminum catalogs, so I am thinking that this is a non-standard size and that KLM had it manufactured for them, as Telrex used to have done.
> 
> I am hoping that someone has an old piece of KLM boom material and that they can fix me up with a piece of this tubing. Thanks for any help with this!
> 
> 73 de Brad, N9EN
> Bluff City, TN
> _______________________________________________
> 
> 
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk