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Re: [TowerTalk] What is..."Pointed Tower vs Flat"

To: towertalk@contesting.com
Subject: Re: [TowerTalk] What is..."Pointed Tower vs Flat"
From: Mark Spencer <mspencer12345@yahoo.ca>
Reply-to: mspencer12345@yahoo.ca
Date: Thu, 10 Jul 2008 14:21:00 -0700 (PDT)
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I've also seen a few short (ie. 50 feet high or less) guyed comercial towers 
using a pointed base (although most guyed comercial towers in this size range 
that I have seen have also had a flat base.)   I believe the pointed base is 
often referred to as a pier pin base.   
 
I'm curious if any one has any insight into what the advantages (if any) would 
be of using a pointed base for a short guyed tower.
 
 

--- On Thu, 7/10/08, Cqtestk4xs@aol.com <Cqtestk4xs@aol.com> wrote:

From: Cqtestk4xs@aol.com <Cqtestk4xs@aol.com>
Subject: Re: [TowerTalk] What is..."Pointed Tower vs Flat"
To: towertalk@contesting.com
Received: Thursday, July 10, 2008, 3:56 PM

Joe
 
Most BIG commercial towers are the kind that come to point at the  bottom.  
This design helps to reduce torque stress on a tower (I  think).  Most ham 
towers are "flat" on the bottom.
 
The pointed ones use a "pin" of some sort and require guying of some
sort  
from the first section.  The flat ones eventually require guying at some 
point. 
 I prefer the flat type since it is easy to temporarily remove a set  of guy 
wires to slide an antenna up the side of a tower.  One can not do  that with 
the pointed type since it must be continuously guyed.
 
W2GD was recently injured by riding down 30 feet of tower that was 
"secured" 
by a pin.  Accidents can and do happen on both types of  tower.
 
Bill K4XS/KH7XS
 
I



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