Date: Wed, 2 Dec 2015 08:29:13 -0500
From: Mike Reublin NF4L <nf4l@comcast.net>
To: towertalk reflector <towertalk@contesting.com>
Subject: [TowerTalk] Climbing mast
Anybody remember who made the masts with steps? Are they still made?
73, Mike NF4L
## I made mine from 2 inch x 2 inch x .25 inch thick angle aluminum,
6061-T6.
14 –15 inchs wide. This was for a 2 inch OD x .375 inch thick 4160
chromolly mast.
Angle AL is held to the mast via a single DX engineering super duty saddle
clamps. They have a
huge amount of surface area. They use a pair of Grade 8 bolts, .375 inch
diam types.
That non skid stuff was available locally in 2 inch wide rolls.
I applied it to both the vertical and horizontal surfaces. At the extreme
ends of the Horz
portions, I installed a 1/4-20 SS bolt and nylock, that sticks up aprx 1.5
inchs. That
is there so I can feel them with my boots, and know where the ends of the
steps are.
IE: slide your foot over a bit, and it will butt up against the SS rider
bolt. Then there is
no way you can step off into...mid air.
The super duty saddle clamps are available in 2 inch and also 2.5 inch..and
also 3 inch. These things are the real deal, and come with their own .25
inch thick SS backing plate.
http://www.dxengineering.com/search/brand/dx-engineering/department/clamps-and-fasteners/product-line/dx-engineering-super-duty-saddle-clamps?autoview=SKU&N=401126%2B4294950919&sortby=Default&sortorder=Default
Jim VE7RF
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