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[TowerTalk] An Engineering Question

To: <towertalk@contesting.com>
Subject: [TowerTalk] An Engineering Question
From: gene@bellhow.com (Gene Smith)
Date: Fri, 30 May 1997 15:57:40 -0400
David O Hachadorian wrote:
> 
> On Fri, 30 May 1997 10:58:19 -0400 Gene Smith <gene@bellhow.com> writes:
> 
> > If you move the anchors in you
> > simply need stronger wire, or possibly the same wire with less of a
> >safety factor, and a stronger anchor.
> 
> It's not just the guy wire and anchors you need to worry about.
> You are also limited by the compression strength spec of the
> tower legs when the wind blows in the worst-case direction. As
> the anchors move in, the compression load goes up when the wind
> blows. Rohn 25, for example, is specified at only 8430 pounds max
> per leg.
> 
> Dave Hachadorian, K6LL
> k6ll@juno.com
> 
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Dave:

Please ignore my earlier email.  I thought you were talking about
something else.  You are correct!  The vertical load
will increase as a factor of the cosine of the angle as well.
I did not take this into account.

Gene

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