[TowerTalk] Angle of maximum wind force on Yagis

Steve Miller millersg@dmapub.dma.org
Mon, 21 May 2001 10:53:32 -0400 (EDT)


Gene,


You are using the wrong equation.  It has been used in ham circles for a long time but is incorrect.

F(max) is NOT equal to W[(boom plus bracket area)(sin theta) + (element area)(cos theta)]

K5IU described the proper method (cross-flow principle) to determine aerodynamic forces on yagi antennas.
References are listed in the following TowerTalk archive post:

http://lists.contesting.com/_towertalk/199710/0321.html


Steve  N8SM/5

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