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Total 4 documents matching your query.

1. [TowerTalk] Fwd: HDBX-48 figures for 90 mph zone (score: 1): Author: HansLG@aol.com; Date: Tue, 6 Dec 2011 23:13:02 -0500 (EST); As I recall wind pressure "on a flat surface" at 70 mph is 20.6 lbs/sq ft., so if the tower is rated for 18 sq ft at 70 mph, would it be too much of a stretch to say to the zoning board that since wi; /archives//html/Towertalk/2011-12/msg00169.html (7,388 bytes)
2. Re: [TowerTalk] Fwd: HDBX-48 figures for 90 mph zone (score: 1): Author: K8RI <K8RI-on-TowerTalk@tm.net>; Date: Wed, 07 Dec 2011 00:19:21 -0500; Regardless of wind area isn't there a boom length limitation on both the BX and HDBX series? 73 Roger (K8RI) _______________________________________________ __________________________________________; /archives//html/Towertalk/2011-12/msg00173.html (8,605 bytes)
3. Re: [TowerTalk] Fwd: HDBX-48 figures for 90 mph zone (score: 1): Author: Edwin Karl <edk0kl@centurytel.net>; Date: Tue, 06 Dec 2011 23:41:44 -0600; When computing windload, tubular surfaces are 66% of flat also a 30# tower is talking about 86 mph (as I recall, been a while since I did this) a 40# is 105 mph. Again, I am rusty on this stuff, but; /archives//html/Towertalk/2011-12/msg00174.html (10,065 bytes)
4. Re: [TowerTalk] Fwd: HDBX-48 figures for 90 mph zone (score: 1): Author: K8RI <K8RI-on-TowerTalk@tm.net>; Date: Wed, 07 Dec 2011 03:20:26 -0500; I hope this makes sense: Let's say for simplicity sake that a 70 MPH wind is 20# per sq fit and the antenna is 16 sq ft. Not a super large monobander, but a good size tribander or the Hy-Gain log per; /archives//html/Towertalk/2011-12/msg00176.html (12,943 bytes)

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