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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Towertalk\]\s+Wind\s+force\s+calculations\s*$/: 3 ]

Total 3 documents matching your query.

1. [Towertalk] Wind force calculations (score: 1)
Author: n6tqs@arrl.net (n6tqs@arrl.net)
Date: Tue, 17 Dec 2002 14:21:07 -0500 (EST)
Hi people, We've just had some big winds through here, and most people haven't had too many problems (although one person has reported half of a 40M element completely vanished, and I have to climb a
/archives//html/Towertalk/2002-12/msg00503.html (6,830 bytes)

2. [Towertalk] Wind force calculations (score: 1)
Author: RedHaines@centurytel.net (Red)
Date: Wed, 18 Dec 2002 11:45:41 -0600
You really ask a tough question, because the answer is not really simple. Aerodynamic drag depends upon a parameter called the Reynolds Number, which is a function of dimension and velocity. Once the
/archives//html/Towertalk/2002-12/msg00532.html (8,888 bytes)

3. [Towertalk] Wind force calculations (score: 1)
Author: n6tqs@arrl.net (n6tqs@arrl.net)
Date: Wed, 18 Dec 2002 13:23:41 -0500 (EST)
Thanks to those who answered my question. The simplistic answer is that the approximate force in pounds per square foot is .004 (or maybe .0025) times the square of the wind speed in miles per hour.
/archives//html/Towertalk/2002-12/msg00533.html (6,875 bytes)


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