[TowerTalk] TX-455 versus LM-354 tower

[Gary Slagel]

Thanks Joe,

Your comment inspired me to look for 'peak wind speed'
in the archives and I found this interesting thread
which includes a couple interesting links:

http://lists.contesting.com/archives//html/Towertalk/2006-09/msg00731.html


I found a mph recommendation for each county in the US
on the championradio web site which I believe is given
in '3 second gust' terms.  I found that the Tashjian
specs reference the new peak or gust spec.  I see
there are several classifications:  '3 second gust
speed', 'fastest mile', '10-min avg' and 'hourly mean'
and one of the links in the above thread has a
conversion table for all 4.  I'll contact US Tower and
see which one of the above they use and I should have
the info I need.  

Thanks again,
Gary


--- "Joe Subich, W4TV" <w4tv at subich.com> wrote:

> 
> Tashjian as adopted the new standard for wind load
> that 
> specifies peak wind speed (gusts).  US Tower is
> still 
> using the older "60 second average" wind ratings. 
> 
> If I recall correctly, the 85 MPH gust rating is
> equivalent 
> to about 60 MPH "sustained" wind. 
> 
> 73, 
> 
>    ... Joe, W4TV 
>   
> 
> 
> 
> > -----Original Message-----
> > From: towertalk-bounces at contesting.com 
> > [mailto:towertalk-bounces at contesting.com] On
> Behalf Of Gary Slagel
> > Sent: Friday, January 25, 2008 12:16 PM
> > To: TOWERTALK at contesting.com
> > Subject: [TowerTalk] TX-455 versus LM-354 tower
> > 
> > 
> > Looking at the specs for the Universal Towers
> TX-455
> > versus the Tashijian LM-354 tower they are very
> > similar.  Same height, same weight, etc.  However
> the
> > LM-354 is rated at 23 sqft load at 85mph while the
> > TX-455 is rated at only 12.3 sqft at 70mph. 
> > 
> > I wonder if there is a good reason the LM-354 is
> rated
> > higher or if it may be exagerating its limits?  
> > 
> > Thanks for any input,
> > Gary
> > 
> > Gary Slagel/N0SXX
> > Lakewood, CO
> > http://marina.fortunecity.com/sanpedro/351
> > 
> > 
> >       
> >
>
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Gary Slagel/N0SXX
Lakewood, CO
http://marina.fortunecity.com/sanpedro/351


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