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## [TowerTalk] Fwd: Maximum Guy Radius

 To: towertalk@contesting.com [TowerTalk] Fwd: Maximum Guy Radius HansLG@aol.com Sat, 1 Oct 2011 23:17:02 -0400 (EDT) mailto:towertalk@contesting.com>
 ``` Hi Dorn, I made some calculations regarding guy wires some time ago. One thing I found out was that you gain some stiffness by mowing the guy anchor out some. Not considering the sag, the optimum anchor point is about 140%. If you include sag you probably have to decrease that a little. I also noted that it is a lot easier to use four guy wires instead of three. The position of the angle is much less critical. I use 5/16" (11,400#) utility grade wire for my guys which was a lot easier to work with than expected. You can check it out at _http://www.facebook.com/media/set/?set=a.10150198503693539.328964.579753538&l=1c649b80ab&type=1_ (http://www.facebook.com/media/set/?set=a.10150198503693539.328964.579753538&; l=1c649b80ab&type=1) 73 de, Hans - N2JFS In a message dated 9/21/2011 9:33:45 A.M. Eastern Daylight Time, kb4eq@hetzel.org writes: If I have a tower of a specific fixed height that I will be erecting, and I have plenty of room to do so, I would estimate that I should gain *some* additional strength against wind-load by moving the guy radius from 80% of height to 100% of height, since this will move the guy angle closer to horizontal and reduce the down force on the tower and increase the horizontal back-force for a given guy tension and a given stretch in a guy due to motion of the tower. Can anyone comment from either a practical experience or engineering point of view whether this estimate is sound? 73, Dorn Hetzel KB4EQ kb4eq@hetzel.org ``````_______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk ```