Dave Tipton wrote:
> If an antenna is rated at 180 lbs at 75 MPH, what would this translate into
> for SQ Feet of Windload? (These numbers were conversions from Newtons and
> KMh) The antenna in question is a Wire type Log Periodic that weighs about
> 71lbs.
>
>
>
>
Ballpark rule of thumb -> Force (lbs/sq ft) = (wind speed, mi/hr)^2/391
(or 400.. if you're doing it in your head)
So.. 20 mi/hr is about 1 lb/sf
40 mi/hr is about 4 lb/sf
80 mi/hr is about 16 lb/sf
100 mi/hr is about 25 lb/sf
your question, 180 lb @ 75 mi/hr.. about 10 sf (to 1 significant figure)
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