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Total 7 documents matching your query.

1. 40M Beam and Mast (score: 1): Author: johns@in.net (John Scott); Date: Mon, 3 Feb 1997 17:32:54 -0500; Hi Everyone, I got a question for you. Do you think a 4130 Cromolly Mast 20' x 2" x = .375" would hold a KLM 2 EL. 40 meter beam (45lbs - 6 ft2 - 16' boom) = 15 feet above the tower? I will be using; /archives//html/Towertalk/1997-02/msg00031.html (7,172 bytes)
2. 40M Beam and Mast (score: 1): Author: broz@csn.net (John Brosnahan); Date: Mon, 3 Feb 1997 18:19:58 -0700; .375" would hold a KLM 2 EL. 40 meter beam (45lbs - 6 ft2 - 16' boom) 15 feet above the tower? I will be using a thrust bearing. Let me know what you think! John, if I use 1.65 sqft for the effective; /archives//html/Towertalk/1997-02/msg00037.html (8,013 bytes)
3. 40M Beam and Mast (score: 1): Author: K7LXC@aol.com (K7LXC@aol.com); Date: Mon, 3 Feb 1997 22:02:19 -0500 (EST); above Hi, John -- If you're in Marion County, it's only a 70 MPH wind zone. With that as the wind pressure and 6 sq.ft. of windload, the total bending force for the antenna and mast is less than 25,0; /archives//html/Towertalk/1997-02/msg00040.html (8,242 bytes)
4. 40M Beam and Mast (score: 1): Author: psoper@encore.com (Pete Soper); Date: Tue, 04 Feb 1997 09:44:24 EST; Could you share the formula(s) for this calculation? Regards, Pete KS4XG -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towe; /archives//html/Towertalk/1997-02/msg00044.html (7,310 bytes)
5. 40M Beam and Mast (score: 1): Author: K7LXC@aol.com (K7LXC@aol.com); Date: Tue, 4 Feb 1997 11:33:29 -0500 (EST); the worked Inquiring minds want to know, eh? The calculations were taken primarily from Dave Leeson's (W6NL, ex-W6QHS) book Physical Design of Yagi Antennas with some help from Stan Griffith's (W7NI); /archives//html/Towertalk/1997-02/msg00049.html (8,279 bytes)
6. 40M Beam and Mast (score: 1): Author: rattmann@cts.com (rattmann); Date: Tue, 4 Feb 1997 10:39:24 -0800 (PST); John, My opinion is that the mast will survive 100mph, but the KLM will likely fail way before that. The KLM 40 element is infamous for numerous mechanical failures, any one of which will put you off; /archives//html/Towertalk/1997-02/msg00054.html (7,284 bytes)
7. 40M Beam and Mast (score: 1): Author: w7ni@teleport.com (Stan Griffiths); Date: Tue, 4 Feb 1997 13:51:53 -0800 (PST); .375" would hold a KLM 2 EL. 40 meter beam (45lbs - 6 ft2 - 16' boom) 15 feet above the tower? I will be using a thrust bearing. Let me know what you think! Hi John, Why don't you calculate the stre; /archives//html/Towertalk/1997-02/msg00057.html (7,824 bytes)

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