In a message dated 12/6/2011 4:43:51 P.M. Eastern Standard Time,
w2lu@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
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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