[Top] [All Lists]

[Towertalk] mast disaster avoidance

To: <>
Subject: [Towertalk] mast disaster avoidance
From: (jljarvis)
Date: Thu, 11 Jul 2002 14:00:22 -0400

If you had a ginpole with a 2 wheel block on top (never seen
one, myself. Do they exist?), you would reduce the load on each 
run of line, proportional to the number of lines.  

But the load on the axle is still the sum of the line-loads.
i.e., unchanged.  

The compressive load on the ginpole itself is thus still the 
same, and the out-of-column bending loads are the same.  


From: "Mike  Gilmer"<>
To: <>
Date: Thu, 11 Jul 2002 12:16:03 -0300
Subject: [Towertalk] Re: mast disaster avoidance

I agree with most of N2EA's post except:

> Solutions using added pulleys still leave the same load on 
> the ginpole material itself

This is not true.  As has been oft-discussed on this reflector in the 
past (and still misunderstood), judicious use of "added pulleys" can 
reduce the total load on the ginpole.

Mike N2MG

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