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Total 4 documents matching your query.

1. [TowerTalk] Inspect Your Boom to Mast Plates! (score: 1): Author: "Bob Selbrede, K6ZZ" <k6zz@ccis.com>; Date: Mon, 08 Jan 2007 18:44:49 -0800; I went up the tower yesterday to take down the Christmas lights and noticed something disturbing. I happed to notice that the boom to mast plate (stock 1/4" aluminum plate) on my KLM 40M4 had stress; /archives//html/Towertalk/2007-01/msg00306.html (7,863 bytes)
2. Re: [TowerTalk] Inspect Your Boom to Mast Plates! (score: 1): Author: "Jim McDonald" <jim@n7us.net>; Date: Mon, 8 Jan 2007 22:33:39 -0600; I agree with Bob's advice. Several years ago, I looked up at my 3L Force-12 EF-340 40M yagi to see the ends of the boom, where the boom guys were fastened, higher than the center of the boom at the m; /archives//html/Towertalk/2007-01/msg00318.html (8,381 bytes)
3. Re: [TowerTalk] Inspect Your Boom to Mast Plates! (score: 1): Author: Cqtestk4xs@aol.com; Date: Tue, 9 Jan 2007 00:05:29 EST; I had this problem with my 4 el 40 M KLM beams. I solved it two different ways. The first way was to take two original thickness aluminum plates and to mount them back to back. The second was to loca; /archives//html/Towertalk/2007-01/msg00320.html (7,335 bytes)
4. Re: [TowerTalk] Inspect Your Boom to Mast Plates! (score: 1): Author: Ethan <ethan@ravenscall.net>; Date: Tue, 09 Jan 2007 04:48:23 -0500; This is one reason to use heavy galvanized steel plate instead of aluminum. There's just too much stress on these plates to use anything which fatigues easily. Ethan KC8HES __________________________; /archives//html/Towertalk/2007-01/msg00325.html (7,569 bytes)

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