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Re: [TowerTalk] Opposing boom to mast plates?

To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Opposing boom to mast plates?
From: <john@kk9a.com>
Date: Mon, 18 Sep 2023 21:16:56 -0400
List-post: <mailto:towertalk@contesting.com>
If this is supposed to reduce twisting forces or stress on the mast (other
than from weight being on one side), I never understood this concept.   I
wish there was a photo or video that explained this.  All of my large Yagis
have always been bolted on the same side of the mast or tower.

John KK9A

  


Steve Maki K8LX wrote:

That's what I used to think, but when shown how the vectors all cancel 
out when the elements AND boom are mounted at their exact centers, I 
became convinced otherwise. Of course boom to mast clamps are often not 
at the boom center, so that throws things off a bit.

-Steve K8LX

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