At 11:47 PM 1/20/04 -0500, Jim White, K4OJ wrote:
Our moderator has spoken before about an additional element you must
consider regarding long masts... it is the dreaded:
This is when you are at the top of the tower juggling a behemoth mast and
it decides it wants to go in a direction other than the one you are
desirous of it attaining.
It is at this moment that your mind immediately recollects your high
school physics class and the wisdom of Archimedes...
When weight (chrome moly masting) that is at the end of a long lever (the
mast) - it is incredible how it can get so heavy SOOOO FAST!
As that weight's force vector takes on more of sideways component you atop
the tower tend to understand just what the
Is all about...
From the Unabashed Plug department, the upcoming issue of the PVRC
Newsletter will include an article by K4ZA describing a uniquely clever
solution to reducing the pucker when doing this job. It will be available
February 1 on the web site at www.pvrc.org -- scroll down to the "News"
section for the link.
73, Pete N4ZR
Check out the World HF Contest Station Database
Updated 9 Jan 04
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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