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Total 9 documents matching your query.

1. [TowerTalk] 3" Boom Joints (score: 1): Author: "Andre Van Wyk" <kr5dx@yahoo.com>; 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 _; /archives//html/Towertalk/2009-09/msg00381.html (6,749 bytes)
2. Re: [TowerTalk] 3" Boom Joints (score: 1): Author: N4NW <n4nw@n4nw.org>; Date: Wed, 23 Sep 2009 08:24:54 -0400; See my prior message in last two days on source for aluminum tubing T6061. 73's Tom, N4Nw Tom Gregory, N4NW n4nw@n4nw.org N4NW LLC - Complete Merchant Services Check out local N4NW weather conditions; /archives//html/Towertalk/2009-09/msg00386.html (7,920 bytes)
3. Re: [TowerTalk] 3" Boom Joints (score: 1): Author: Dan <n5ar@air-pipe.com>; Date: Wed, 23 Sep 2009 07:45:25 -0700; Andre: I had the problem of repairing a 57 foot 3" boom which had buckled. I removed the damaged section. I measured the ID of the undamaged tube and went to our local aluminum supplier. They had an; /archives//html/Towertalk/2009-09/msg00388.html (8,455 bytes)
4. Re: [TowerTalk] 3" Boom Joints (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Wed, 23 Sep 2009 13:41:12 -0700 (PDT); So called "2 1/2 inch" pipe has an OD of 2.875 inches. This will slip inside a piece of 3 inch irrigation tubing with a wall of 0.050 inch. If the wall is thicker, you can always turn down the pipe o; /archives//html/Towertalk/2009-09/msg00392.html (8,065 bytes)
5. Re: [TowerTalk] 3" Boom Joints (score: 1): Author: <john@kk9a.com>; Date: Wed, 23 Sep 2009 17:51:44 -0400; 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 I am planning; /archives//html/Towertalk/2009-09/msg00397.html (7,517 bytes)
6. Re: [TowerTalk] 3" Boom Joints (score: 1): Author: "WA3GIN" <wa3gin@comcast.net>; Date: Wed, 23 Sep 2009 18:16:45 -0400; 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 si; /archives//html/Towertalk/2009-09/msg00399.html (9,353 bytes)
7. Re: [TowerTalk] 3" Boom Joints (score: 1): Author: TexasRF@aol.com; Date: Wed, 23 Sep 2009 18:41:20 EDT; 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 pha; /archives//html/Towertalk/2009-09/msg00400.html (8,610 bytes)
8. Re: [TowerTalk] 3" Boom Joints (score: 1): Author: <john@kk9a.com>; Date: Wed, 23 Sep 2009 19:27:32 -0400; The tolerances are pretty wide on extruded tubing (something like +/- .015 on the outside diameter and +/- 0.009 on the wall thickness), so whether is fits or not without machining is a crapshoot. Jo; /archives//html/Towertalk/2009-09/msg00404.html (9,118 bytes)
9. Re: [TowerTalk] 3" Boom Joints (score: 1): Author: "Dave Johnson" <djohnson@windstream.net>; Date: Tue, 22 Sep 2009 23:06:55 -0400; Go to a scrap metal yard and see if you can find a 2 1/2" schedule 40 aluminum pipe. It's OD will be 2.875". Cut off some pieces 8 to 12 inches long (your choice) then make a single cut long ways. Pu; /archives//html/Towertalk/2009-09/msg00409.html (9,418 bytes)

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