[TowerTalk] surface area of 45g

[K7LXC@aol.com]

In a message dated 99-07-24 19:35:56 EDT, henry@pacinfo.com writes:

> To do some begining calculations, I need a few dimensions. 
>  
>  The projected surface area of Rohn 45g (and 25g, to save me from having to
>  ask again), like square inches of surface area for 1 foot of tower, face or
>  leg frontal.

      The Rohn catalog lists the cross sectional area as .913 square inches 
for 45G. It's .726 for 25G. I think that's what you're looking for. 

>  A conversion between mph and psi for wind loading, like a wind speed of X
>  mph corresponds to a wind pressure of Y lb.s per square inch.
>  
10 PSF = 50 MPH
14.4 PSF = 60 MPH
20 PSF = 70.7 MPH
30 PSF = 86.6 MPH
40 PSF = 100 MPH
50 PSF = 111.8 MPH
60 PSF = 122.5 MPH
86 PSF = 147 MPH

Cheers,   Steve   K7LXC

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