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Total 34 documents matching your query.

21. Re: [TowerTalk] Fall Zone (score: 1): Author: Larry Banks via TowerTalk <towertalk@contesting.com>; Date: Mon, 8 Jul 2019 15:46:34 -0400; Henry Petroski (a Civil Engineer and professor emeritus at Duke) is one of my favorite authors. He has a column in the semi-monthly magazine American Scientist that is a must read for every engineer!; /archives//html/Towertalk/2019-07/msg00108.html (14,567 bytes)
22. Re: [TowerTalk] Fall Zone (score: 1): Author: Wes <wes_n7ws@triconet.org>; Date: Mon, 8 Jul 2019 13:03:21 -0700; "The Pencil" and "The Book on the Bookshelf" are good reads too. Thanks for the tip. Wes N7WS 73 -- Larry -- W1DYJ _______________________________________________ __________________________________; /archives//html/Towertalk/2019-07/msg00109.html (9,764 bytes)
23. Re: [TowerTalk] Fall Zone (score: 1): Author: Larry Banks via TowerTalk <towertalk@contesting.com>; Date: Mon, 8 Jul 2019 16:15:39 -0400; Woops! I meant bi-monthly! Larry / W1DYJ "The Pencil" and "The Book on the Bookshelf" are good reads too. Thanks for the tip. Wes N7WS 73 -- Larry -- W1DYJ ___________________________________________; /archives//html/Towertalk/2019-07/msg00111.html (10,623 bytes)
24. Re: [TowerTalk] Fall Zone (score: 1): Author: "John" <jd_hudson@comcast.net>; Date: Mon, 8 Jul 2019 15:58:51 -0500; While my experience has nothing to do with this particular question. I retired from the fire service and we used 1.5 x the height for a "safe zone" for fallen debris. We didn't run into tower failure; /archives//html/Towertalk/2019-07/msg00112.html (10,626 bytes)
25. Re: [TowerTalk] Fall Zone (score: 1): Author: k7lxc--- via TowerTalk <towertalk@contesting.com>; Date: Mon, 8 Jul 2019 20:59:44 +0000 (UTC); Oh, please Oh Sage, please enlighten us. After all, that's why we're here - to learn and avoid mistakes. Cheers,Steve K7LXC _______________________________________________ ___________________; /archives//html/Towertalk/2019-07/msg00113.html (8,550 bytes)
26. Re: [TowerTalk] Fall Zone (score: 1): Author: k7lxc--- via TowerTalk <towertalk@contesting.com>; Date: Mon, 8 Jul 2019 21:04:30 +0000 (UTC); The Gunnar Olsen study of collapsed guyed towers - the only one I've ever seen - is at https://www.championradio.com/tech.notes.html. Cheers,Steve K7LXCTOWER TECHand Champion Radio Products _; /archives//html/Towertalk/2019-07/msg00114.html (8,606 bytes)
27. Re: [TowerTalk] Fall Zone (score: 1): Author: jimlux <jimlux@earthlink.net>; Date: Mon, 8 Jul 2019 14:18:32 -0700; In addition to that, there's a bunch of reports referenced at the end of this: https://www.health.ny.gov/environmental/investigations/face/09ny095.htm that describe the mechanics and analysis of sev; /archives//html/Towertalk/2019-07/msg00115.html (8,993 bytes)
28. Re: [TowerTalk] Fall Zone (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Mon, 8 Jul 2019 19:51:17 -0400; Take a look at K7NV's website. He did an interesting finite element analysis of tower failure modes. Don't know, but it was still there the last time I looked. 73, Pete N4ZR Check out the Reverse B; /archives//html/Towertalk/2019-07/msg00118.html (9,271 bytes)
29. Re: [TowerTalk] Fall Zone (score: 1): Author: Mac <libbysales@austin.rr.com>; Date: Mon, 8 Jul 2019 23:21:38 -0500; On a small lot, yes. mac/mc w5mc John KK9A But overall, I would think a building code type requirement for "must be at least the height from property line or structures" is a pessimistic worst case; /archives//html/Towertalk/2019-07/msg00119.html (9,160 bytes)
30. Re: [TowerTalk] Fall Zone (score: 1): Author: JVarney <jvarn359@gmail.com>; Date: Tue, 9 Jul 2019 09:16:14 -0700; I see the "fall zone" issue as more of a political or social issue. In every city there are telephone poles, billboards, streetlights, traffic signals, flagpoles, etc., all within the fall zone of ne; /archives//html/Towertalk/2019-07/msg00127.html (8,927 bytes)
31. Re: [TowerTalk] Fall Zone (score: 1): Author: "Larry B. via TowerTalk" <towertalk@contesting.com>; Date: Tue, 9 Jul 2019 17:10:18 -0400; I would respectfully suggest that the issue here is that Hams are cheap and often do not "properly engineer and construct" towers. If we all had to have the engineering documentation to PROVE that ou; /archives//html/Towertalk/2019-07/msg00138.html (10,947 bytes)
32. Re: [TowerTalk] Fall Zone (score: 1): Author: RCM <robrk@nidhog.net>; Date: Tue, 9 Jul 2019 17:38:30 -0400; -- Theres the problem, properly engineered. We hope percentage of stupid in ham radio is less the the rest of society, but.. The local with a tribander on 50 of Rohn 25, with no guys. It would have; /archives//html/Towertalk/2019-07/msg00139.html (8,690 bytes)
33. Re: [TowerTalk] Fall Zone (score: 1): Author: Mac <libbysales@austin.rr.com>; Date: Tue, 9 Jul 2019 17:22:00 -0500; I got a smile on this last sentence, "The guy giving out S-meter reports " listening to the repeater" oh lord i remember those guys from the early 70s when repeaters were popping up all over the pl; /archives//html/Towertalk/2019-07/msg00140.html (10,141 bytes)
34. Re: [TowerTalk] Fall Zone (score: 1): Author: Kelly Taylor <ve4xt@mymts.net>; Date: Tue, 9 Jul 2019 15:39:35 -0700; I remember one ham, back when I started, referring to a BAY-lun coil for that antenna Or the guy on Facebook asking how to make two pieces of wire, in a dipole arrangement, cover 1.8 to 54 MHz I can; /archives//html/Towertalk/2019-07/msg00142.html (10,853 bytes)

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