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[TowerTalk] US Towers and wind Loading Capacity

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Subject: [TowerTalk] US Towers and wind Loading Capacity
From: (Richard Karlquist)
Date: Fri Jun 20 00:37:56 2003
Where did those numbers come from?  AFAIK, the MA-550
barely survives 80 MPH with no antenna on top.  I see
no way you can do what you propose unless you crank
the tower down whenever you are off the air (and don't
get on the air when it is windy).

Rick N6RK

>    The The wind load capacity of the MA-550 at 50mph is a little 
> more than 10 sqr feet of antenna and at 80mph it is around 6sqr 
> feet.  This is based on the antenna being around foot or so above 
> the top of the tower.  If I use their 20ft reinforced steel mast 
> and put the 3 element Steppir at 10 feet above the top of the 
> tower and the D40 at the top, at 20 feet above.  What does that 
> do to it's wind loading capacity?
> Michael
> Michael Hatzakis, Jr MD 
> Physiatrist, Treating Individuals with Neuromuscular Disabilities 
> Consultant, Information Technology Based Health Care Solutions
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