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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