[TowerTalk] Fwd: HDBX-48 figures for 90 mph zone

[K8RI]

On 12/6/2011 11:13 PM, HansLG at aol.com wrote:
>
> In a message dated 12/6/2011 4:43:51 P.M. Eastern Standard Time,
> w2lu at rochester.rr.com writes:
>
> As I  recall wind pressure "on a flat surface" at 70 mph is 20.6 lbs/sq
> ft.,
> so  if the  tower is rated for
> 18 sq ft at 70 mph, would it be too much of  a stretch to say to the zoning
> board that since wind pressure at 90 mph is  34 lbs/sq ft, by simple math,
> the tower should be good for 10.9 sq ft at  90 mph ?
> Gene / W2LU

Regardless of wind area isn't there a boom length limitation on both the 
BX and HDBX series?

73

Roger (K8RI)
>
>
>
>
>
> Nop! It is not that easy. You have to take the wind surface of the  tower
> into the calculation as well which makes it "a little more  complicated".
>
> Hans - N2JFS
>
>
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