[TowerTalk] Mast load question

Wendell Wyly - W5FL wendell at wyly.org
Thu May 27 00:40:14 EDT 2004


It isn't the 45# with a 12 foot lever arm that is the problem, it is the 80
mph wind gust of 30 pounds per sq ft x the 12 sq ft x the 12 foot lever arm
that bends the mast and bends the tower.  The windload with the tower
vertical can be 8 times worse than the static load when the tower is tilted.
At least it is a crank up tower that folds over, so  you won't need a crane
to fix it unless you can't lower it.  Self Supporting Towers in Texas seldom
are!

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com]On Behalf Of KJ0M
Sent: Wednesday, May 26, 2004 2:55 PM
To: towertalk at contesting.com
Subject: [TowerTalk] Mast load question

I have a question regarding the installation of a couple of antennas
on a US Tower TX-472 crank-up, tilt-over tower. The question involves




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