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1. [TowerTalk] FW: Antenna spacing on mast (score: 1): Author: "KM5VI" <km5vi@flukey.cc>; Date: Fri, 14 Sep 2012 16:57:30 -0500; It would take a wind pressure of over 750 psf to bend a 4' section of 2" SCH 40 pipe to the point of permanent deformation. 750 psf is about 30 times as much pressure as would be generated by a 100 m; /archives//html/Towertalk/2012-09/msg00258.html (8,690 bytes)
2. Re: [TowerTalk] FW: Antenna spacing on mast (score: 1): Author: "Larry" <lknain@nc.rr.com>; Date: Sat, 15 Sep 2012 07:32:33 -0400; Don't forget about the moment generated by the antenna. Wind pressure of 100 mph is about 40 psf IIRC. That means an antenna at 4 feet that has a wind load of about 182 lbs would deform the pipe at t; /archives//html/Towertalk/2012-09/msg00264.html (10,445 bytes)
3. Re: [TowerTalk] FW: Antenna spacing on mast (score: 1): Author: TexasRF@aol.com; Date: Sat, 15 Sep 2012 08:53:11 -0400 (EDT); Hi All, running this problem through a mast calculator program shows a wind survival of 93 mph with the following assumptions: 1.9" OD .145" wall water pipe yield strength of pipe 27ksi pipe length 4; /archives//html/Towertalk/2012-09/msg00265.html (10,936 bytes)
4. Re: [TowerTalk] FW: Antenna spacing on mast (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Sat, 15 Sep 2012 09:14:03 -0400; running this problem through a mast calculator program shows a wind survival of 93 mph with the following assumptions: That also assumes no ice. Add even 1/4" to 1/2" of ice and the wind survival dro; /archives//html/Towertalk/2012-09/msg00266.html (12,150 bytes)
5. Re: [TowerTalk] FW: Antenna spacing on mast (score: 1): Author: k2qmf@juno.com; Date: Sat, 15 Sep 2012 12:02:01 -0400; Mine lasted over 30 years!!!!! ____________________________________________________________ Woman is 57 But Looks 27 Mom publishes simple facelift trick that angered doctors... http://thirdpartyoffer; /archives//html/Towertalk/2012-09/msg00267.html (15,607 bytes)
6. Re: [TowerTalk] FW: Antenna spacing on mast (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Sat, 15 Sep 2012 12:54:34 -0400; You were not only lucky, you were exceptionally lucky. 73, ... Joe, W4TV Mine lasted over 30 years!!!!! running this problem through a mast calculator program shows a wind survival of 93 mph with the; /archives//html/Towertalk/2012-09/msg00269.html (18,132 bytes)

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