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Re: [TowerTalk] Mast Material

Subject: Re: [TowerTalk] Mast Material
Date: Wed, 9 Mar 2011 18:13:24 EST
List-post: <">>
In a message dated 3/9/2011 2:59:24 P.M. Pacific Standard Time, writes:

>  Wow,? I just ran some numbers thru this online utility,  and the results 
vary wildly from the older ARRL Antenna Mast Analyisis Excel  sheet I found 
online a year or so ago. 

>  Can anyone tell me  the correct stress PSI of the US Tower M20R 
reinforced mast?? I would like to  know the true ratings of this mast I have in 
here at the moment.?  

The figure you want to know  is the yield strength. For that, you need to 
know the material of the mast. I  don't know what it is. I think the 
reinforced mast has an inner, shorter mast to  beef up the bottom which is 
where it 
would bend.
Steve    K7LXC

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