[TowerTalk] Fall Zone

[jimlux]

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.