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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+2\"\s+OD\s+pipe\.\.\s+again\s*$/: 11 ]

Total 11 documents matching your query.

1. [TowerTalk] 2" OD pipe.. again (score: 1)
Author: "Jim Thomson" <Jim.thom@telus.net>
Date: Thu, 18 Mar 2010 22:29:44 -0700
http://www.rogerhalstead.com/ham_files/Tower29.htm shows a tribander at 100', 7L 6-meter Yagi at 115 and a 14' cross boom at 130' holding a pair of 11L on 440 and pair of 12L 144. That all on 2" sche
/archives//html/Towertalk/2010-03/msg00360.html (9,608 bytes)

2. Re: [TowerTalk] 2" OD pipe.. again (score: 1)
Author: "Michael Ryan" <mryan001@tampabay.rr.com>
Date: Fri, 19 Mar 2010 02:10:56 -0400
Really much-a-do about nothing here for 24 hrs at least. I REALLY HOPE these guys use their water pipes, pipe cleaners, or pool cleaners, or whatever, to prop up their antennas. It will sooner or lat
/archives//html/Towertalk/2010-03/msg00361.html (11,707 bytes)

3. Re: [TowerTalk] 2" OD pipe.. again (score: 1)
Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>
Date: Fri, 19 Mar 2010 03:00:25 -0400
This is structural and it's approximately 2". To me, 1.9 is 2" unless working with close tolerances. Yes, with antennas as shown in the photo. Lots of it. if 70 MPH plus qualifies, then yes. As I sai
/archives//html/Towertalk/2010-03/msg00363.html (13,335 bytes)

4. Re: [TowerTalk] 2" OD pipe.. again (score: 1)
Author: Kevin Normoyle <knormoyle@surfnetusa.com>
Date: Fri, 19 Mar 2010 00:08:30 -0700
Question for the people who are sleeping at night: If people create an antenna load that requires such a strong mast to resist bending, then that force is transferred to the top section of a crankup.
/archives//html/Towertalk/2010-03/msg00364.html (9,068 bytes)

5. Re: [TowerTalk] 2" OD pipe.. again (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Fri, 19 Mar 2010 09:26:13 -0400
Depending on where you live, to be really safe, add another0.5 " or so to the mast diameter for ice, although you're probably not likely to get ice and high wind at the same time. I've had "good luck
/archives//html/Towertalk/2010-03/msg00371.html (12,808 bytes)

6. Re: [TowerTalk] 2" OD pipe.. again (score: 1)
Author: Charlie Gallo <Charlie@TheGallos.com>
Date: Fri, 19 Mar 2010 09:40:15 -0400
As someone said - there is a place for everything. That said, my dinky little TA-33Tigarray (a Jr with the full power traps) will be sitting on 2" mast, and only about 6 inches above the thrust beari
/archives//html/Towertalk/2010-03/msg00372.html (9,096 bytes)

7. Re: [TowerTalk] 2" OD pipe.. again (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Fri, 19 Mar 2010 09:53:04 -0400
If we're really looking for more things to worry about you could add vertical loading caused by that heavy steel tubing, and colum strength. You may eventually decide to stick with wires in trees. Is
/archives//html/Towertalk/2010-03/msg00373.html (14,131 bytes)

8. Re: [TowerTalk] 2" OD pipe.. again (score: 1)
Author: "Steve, W3AHL" <w3ahl@att.net>
Date: Fri, 19 Mar 2010 20:52:43 -0400
Kevin, http://www.arrl.org/qex/1123.pdf http://www.arrl.org/qexfiles/Travanty.zip Steve, W3AHL Date: Fri, 19 Mar 2010 00:08:30 -0700 From: Kevin Normoyle <knormoyle@surfnetusa.com> Subject: Re: [Towe
/archives//html/Towertalk/2010-03/msg00387.html (10,172 bytes)

9. Re: [TowerTalk] 2" OD pipe.. again (score: 1)
Author: Kevin Normoyle <knormoyle@surfnetusa.com>
Date: Fri, 19 Mar 2010 18:17:37 -0700
"Wind loading specification from the tower manufacturer. In my case, the tower was rated for 23.3 ft2 of antenna located one foot above the topof the tower. This is a 350-lb wind load at that point,
/archives//html/Towertalk/2010-03/msg00391.html (11,942 bytes)

10. Re: [TowerTalk] 2" OD pipe.. again (score: 1)
Author: "Steve, W3AHL" <w3ahl@att.net>
Date: Sat, 20 Mar 2010 00:26:07 -0400
Kevin, The three crank-up towers I've seen a stress analysis for (MA-550, MA770 & TX-455) all have the greatest F.S. ( 0.48 - 0.56) for the top section and the least margin (FS= 0.90-0.93) in the nex
/archives//html/Towertalk/2010-03/msg00398.html (14,820 bytes)

11. Re: [TowerTalk] 2" OD pipe.. again (score: 1)
Author: jimlux <jimlux@earthlink.net>
Date: Sat, 20 Mar 2010 07:30:49 -0700
I haven't looked at many of these things, but at least some mfrs do provide dimensions (of tubes, braces, lattice dimensions) and materials, so one could do the analysis. Although, you'd probably win
/archives//html/Towertalk/2010-03/msg00400.html (12,123 bytes)


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