[TowerTalk] Fall Zone

[W0MU Mike Fatchett]

Start correcting with references to real data then.

Help out the group with your knowledge.

W0MU

On 7/8/2019 11:38 AM, Glenn Pritchard wrote:
> Boy is there a lot of misinformation here.
>
> Glenn, VA7UO
>
> Sent from my iPhone
>
>> On Jul 8, 2019, at 10:36 AM, jimlux <jimlux at 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 at embarqmail.com>
>>> To: undefined <towertalk at 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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