[TowerTalk] Beam Orientation to Wind

Bob & Traudel Eslaire W9UI@SprintMail.com
Sat, 11 Oct 1997 11:56:47 -0700


Hi Dick.

Dick Weber, K5IU, has written a series of articles on this subject.  The
articles (that I know of) are;

-Determination of Yagi Wind Loads Using the "Cross-Flow Principle",
Communications Quarterly (Spring 1993)

The above article is math intensive.  Dick condensed this information
into;

-Yagi Wind Loads, The DX Magazine (May/June 1995)

Dick expanded on the subject in the following two articles;

-Aerodynamic Balancing:  Part 1, Communications Quarterly (Summer 1994)
-Aerodynamic Balancing:  Part 2, Communications Quarterly (Winter 1995)

These two were condensed into:

-Yagi Wind Loading, The Dx Magazine (July/August 1995)


They are all good reading.

Hope this helps.

Bob, W9UI.

"Dick Green". wrote:
> 
> I know I've seen this information somewhere, but I can't remember where
> (maybe it was here.) For the typical HF Yagi, what orientation to the wind
> produces the least stress on the beam and tower? In other words how should
> the beam be pointed so that it "rides" the wind the best?
> 
> 73, Dick, WC1M


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