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Trylon / Titan Towers??

To: <towertalk@contesting.com>
Subject: Trylon / Titan Towers??
From: w7ni@teleport.com (Stan Griffiths)
Date: Wed, 14 Aug 1996 13:29:42 -0700 (PDT)
>
>                      TITAN MAXIMUM WIND THRUST VALUES
>
>MODEL  MAX HEIGHT         70MPH              85MPH
>-----  ----------    ---------------    ---------------
>T200      96ft       200lbs/15 sq ft          n/a
>T300      88ft       300lbs/22 sq ft    110lbs/ 6 sq ft
>T400      80ft       460lbs/34 sq ft    240lbs/12 sq ft
>T500      72ft       600lbs/45 sq ft    450lbs/22 sq ft
>T600      64ft       800lbs/60 sq ft    700lbs/35 sq ft
>T700      56ft      1000lbs/80 sq ft    900lbs/45 sq ft
>T800      48ft      1300lbs/99 sq ft   1130lbs/58 sq ft
>

Hi Scott,

I noticed that when you divide the "lbs" by the "sq ft" you get about 13 at
70 mph and about 20 at 85 mph using the data in the above chart.  An old EIA
wind chart that I have in an old Rohn catalog says 70 mph is 19.6 lb/sq ft
and 85 mph is 28.9 lb/sq ft.  The implication is that maybe the "sq ft"
rating is a little too high for the "lbs" number.  But maybe my data is just
too old and the EIA chart has not been found to be accurate.

What do you think K7LXC?

Stan  w7ni@teleport.com


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