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[TowerTalk] Angle of maximum wind force on Yagis

To: <towertalk@contesting.com>
Subject: [TowerTalk] Angle of maximum wind force on Yagis
From: SPELUNK.SUENO@prodigy.net (EUGENE SMAR)
Date: Mon, 21 May 2001 18:08:02 -0400
TT:

     I'm feeling less and less certain that my equations are correct!
Thanks to Kurt, Steve, Michael and Guy for pointing me toward previous
sources.  I've inquired from the sources about reprints of the articles
mentioned.

     Stay tuned.


73 de
Gene Smar  AD3F
-----Original Message-----
From: Steve Miller <millersg@dmapub.dma.org>
To: towertalk@contesting.com <towertalk@contesting.com>
To: <towertalk@contesting.com>
Date: Monday, May 21, 2001 12:23 PM
Subject: Re: [TowerTalk] Angle of maximum wind force on Yagis


>Gene,
>
>
>You are using the wrong equation.  It has been used in ham circles for a
long time but is incorrect.
>
>F(max) is NOT equal to W[(boom plus bracket area)(sin theta) + (element
area)(cos theta)]
>
>K5IU described the proper method (cross-flow principle) to determine
aerodynamic forces on yagi antennas.
>References are listed in the following TowerTalk archive post:
>
>http://lists.contesting.com/_towertalk/199710/0321.html
>
>
>Steve  N8SM/5
>
>List Sponsor:  Champion Radio Products - We'll be at the Dayton Hamvention
>with all of our safety equipment and other products. Stop by booth #559 and
>say hi.
><A HREF="http://www.championradio.com";>www.ChampionRadio.com</A>
>
>-----
>FAQ on WWW:               http://www.contesting.com/FAQ/towertalk
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>


List Sponsor:  Champion Radio Products - We'll be at the Dayton Hamvention
with all of our safety equipment and other products. Stop by booth #559 and
say hi.
<A HREF="http://www.championradio.com";>www.ChampionRadio.com</A>

-----
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