[TowerTalk] 3" Boom Joints

[WA3GIN]

Contact Mosley,  they build commercial LP antennas with dual booms 
constructed of 3" with inserts that bring the wall thickness to .250"  The 
inserts do not appear to be turned to fit but a standard size.  I've used it 
and it is husky stuff.

Use anti-seaze, thin coat, wipe the insert pipe down with a rag then slip it 
in... I've taken these pieces apart after being up in the air 15yrs and it 
was an easy task.

Have Fun,
dave
wa3gin
----- Original Message ----- 
From: <john at kk9a.com>
To: <TOWERTALK at contesting.com>
Sent: Wednesday, September 23, 2009 5:51 PM
Subject: Re: [TowerTalk] 3" Boom Joints


> For splices to 3 inch x 1/8 wall boom, I use 2 1/2" Schedule 40 6061-T6
> aluminum pipe.  The O.D. is 2.875 and the I.D. is 2.469.  Then I have the
> O.D. machined to 2.735 - 2.740.
>
> John KK9A
>
>
> To: <towertalk at contesting.com>
> Subject: [TowerTalk] 3" Boom Joints
> From: "Andre Van Wyk"
> Date: Tue, 22 Sep 2009 17:18:22 -0600
>
> I am planning the construction of 2 yagis, and I was wondering about "of 
> the
> shelf" material to join 3" aluminum tube sections for very long booms.
>
> Any suggestions would be appreciated.
>
> 73
> de KR5DX
>
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