At onlinemetals.com 6061-T6 with 2.75 O.D. and .25" wall is listed for
about $22 per ft. This diameter will require less machining to fit the i.d. of
the 3" material.
If the tolerances are out of phase, it might even fit with no machining.
73,
Gerald K5GW
In a message dated 9/23/2009 4:52:20 P.M. Central Daylight Time,
john@kk9a.com writes:
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@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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