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Re: [TowerTalk] Where is the best place to buy aluminum tubing?

To: "Robert Chudek - K0RC" <>,<>
Subject: Re: [TowerTalk] Where is the best place to buy aluminum tubing?
From: "jeremy-ca" <>
Date: Mon, 11 Jun 2007 14:46:14 -0400
List-post: <>
I built a W2PV 4el 20 using 40' (two 20' lengths) of 3" irrigation tubing. 
Spliced in the center using about 18" of Schedule 40 aluminum pipe. Also 
used some 3" scrap from the supplier that I cut into 6" lengths, slit 
lengthwise and slid over the boom. This provided extra crush strength for 
the element plate U bolts. Boom support was Phillystran. Elements used 1 
1/8" thru 1/2" tubing with a rather severe taper; sag was minimal and it 
rode many severe winds and ice storms with ease.

This antenna survived about 19 years at 2 QTH's with no damage. It will 
probably go up again this summer on a different tower.


----- Original Message ----- 
From: "Robert Chudek - K0RC" <>
To: <>
Sent: Monday, June 11, 2007 11:06 AM
Subject: [TowerTalk] Where is the best place to buy aluminum tubing?


In my "yout" I build a 6-element 15m yagi using a single section of 2" by 40 
foot irrigation aluminum tubing I obtained at a local Agri-supplier. I used 
an top truss to help support the ends. I didn't have any side trusses. I 
probably got away with this configuration because a 15m element is 
relatively small and there were no "freak" wind storms while I had it up on 
my 104 foot tower. It worked real fine and lasted a long time. I ruled 15 
meters in this area with that antenna in the early 1970's!

Yes, tower sections have been used for booms, especially the monster 80 
meter yagi's. Google 80 meter yagi and I'm sure you will find some examples.

Your construction decisions will depend upon the band of interest and your 
location's wind and ice loading circumstances. One of the bibles for 
guidance is "Physical Design of Yagi Antennas" by David B. Leeson W6QHS 
(ISBN 0-87259-381-9). I bought my copy from the ARRL Bookstore years ago.

And I know both Texas Towers and the MFJ catalog have aluminum tubing for 
sale in a wide variety of sizes and thickness.

73 de Bob - KØRC in MN

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Message: 2
Date: Mon, 11 Jun 2007 02:04:34 -0400
Subject: [TowerTalk] Where is the best place to buy aluminum tubing?
To: <>
Message-ID: <000601c7abee$62f92610$0401a8c0@internet>
Content-Type: text/plain; charset="iso-8859-1"

Looking for some small 1"1/4 inside diameter to go on the bottom of some 
spreaders and some 3" to 4" boom stuff
for some long booms.
Wonder how long of a boom can be made from 3" aluminum tubing. Looking at a 
60ft boom.
Wonder if anyone has played with small aluminum tower for a boom. Does 
anyone make stuff smaller then 20G.
I guess aluminum irragation aluminum pipe could work, anyone tried that 
Looking for some input.



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