[TowerTalk] TX-455 versus LM-354 tower

[Joe Subich, W4TV]

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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