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Re: [TowerTalk] Fall Zone

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Fall Zone
From: David Gilbert <xdavid@cis-broadband.com>
Date: Mon, 8 Jul 2019 11:25:28 -0700
List-post: <mailto:towertalk@contesting.com>

And that potshot comment doesn't ameliorate the situation in the least.

Dave  AB7E


On 7/8/2019 10:38 AM, Glenn Pritchard wrote:
Boy is there a lot of misinformation here.

Glenn, VA7UO



On Jul 8, 2019, at 10:36 AM, jimlux <jimlux@earthlink.net> wrote:

On 7/8/19 9:34 AM, Jim Thomson wrote:
Date: Mon, 8 Jul 2019 11:20:31 -0400 (EDT)
From: Wilson  Lamb <infomet@embarqmail.com>
To: undefined <towertalk@contesting.com>
Subject: [TowerTalk] Fall Zone
<I wouldn't want a neighbor's tower/Yagi looming over my backyard...and I love 
towers!
<The fall zone idea seems like simple good manners.
<I have been loosely involved in dropping 200' BC towers, dropped by cutting 
the rods at one guy anchor, thus losing all guys on that side.
<They fell absolutely full length, with a few sections not even bent!
<I think a foundation failure (soil, bolt, gin pole) would drop a crankup to 
full length.
<Is there any experience available on this?
<WL
##  per software,  Trylon self support  towers will  fail  at the junction  of the 4th 
 and  5th  section..... 40’  above ground.
UST  designs a weak  spot.... which  is  midway  up  the  3rd  section...  46.5 
 feet  above ground.
##  Never seen  a pix  of  either  tower folded  over... as  depicted  above.   
 40  ft...and  46.5 ft.   So dont  know if  their
design theory  works....or not.
It doesn't have to be a specially designed weak spot. Towers tend to 
bend/buckle in the middle anyway.



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