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Date: Sat, 31 May 1997 09:24:54 -0400 (EDT)
From: Frank Donovan <donovanf@sgate.com>
To: Luís Teixeira <ct4nh@mail.telepac.pt>, towertalk@contesting.com
Subject: AB-105 
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Hi Luis!
Congratulations on your AB-105, the tower of choice by many of the best 
contest stations.  

The steps for an AB-105 are provided with the tower, so perhaps
you did not get them when you acquired your tower (or your AB-105 may be
one of the rare early AB-105 models that used very inconvenient
triangular plates for the steps).

The part number (stamped on the part) of the AB-105 step is G-10A (G-10 in
earlier models).  It is fabricated from L-shaped hot-dip galvanized angle,
1 inch x 0.75 inch x 0.125 inches thick.  The angle is 23 inches long with
a 13/32 inch hole centered 5/8 inch from each end.  There is nothing
critical about the 1 inch x 0.75 inch x 0.125 inch steel angle dimension,
although the material you select should certainly be no weaker than the
original angle.  All but the earliest AB-105 models are pre-drilled for
the installation of G-10 steps.

An ladder for an 80 foot AB-105 requires 64 G-10A steps. Three G-10 steps
are also used to at each section joint and six G-10 steps should be used
to strengthen each guy attachment point.

73!
Frank
W3LPL
donovanf@sgate.com


Hi guys!
I have in my garden a 80 ft AB 105 military Tower, and would like to
have some tips how to install steps on it. Very rough to climb without
steps as its made of steel angle...
Thanks appreciate your infos 
73 de Luis CT4NH
ct4nh@mail.telepac.pt

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