Towertalk
[Top] [All Lists]

[TowerTalk] Another Sanity Check

To: <towertalk@contesting.com>
Subject: [TowerTalk] Another Sanity Check
From: W4EF@pacbell.net (Michael Tope)
Date: Sat, 20 Mar 1999 15:24:35 -0000
I have a heavy duty pulley (1300 lbs working load) here that I was thinking 
of using as part of a tram for an upcoming tower project. My plan was to 
possiblly attach this pulley to the antenna mast and pass a nylon rope through 
it.
The rope would attach to the a tram pulley riding on a 1/4" EHS cable and would
be used to raise and lower the antennas. Although the pulley is quite heavy, it 
will 
only accomodate 5/16" diameter rope or cable (1/2 wide pulley wheel). Will 5/16"
nylon rope be heavy enough to safely raise and lower the antennas (I estimate
the static load to be over 100 lbs), or should I go to a bigger pulley and 1/2" 
rope?

BTW, the antennas in question are a KLM KT34XA and 40 meter 4 yagi both with
the heavy duty (thick) boom material option.

73 de Mike, W4EF.........


--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm


<Prev in Thread] Current Thread [Next in Thread>