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## [TowerTalk] Mast wind loading

 To: towertalk@contesting.com, k6xn@comcast.net [TowerTalk] Mast wind loading NPAlex@aol.com Sat, 25 Mar 2006 22:33:55 EST
 ```In a message dated 3/25/2006 7:16:21 PM Eastern Standard Time, towertalk-request@contesting.com writes: If for example the mast section extending above the Rohn 25G tower to be used is 2 inches in diameter and 10 feet long what is the value we should use for calculating the additional wind load "area" due to the 10 foot mast? Is it simply 2 times 10 times 12 for 240 square inches for 1.6 additional square feet or ??? Moving forward would the total effective wind load for the ensemble to be used in checking the Rohn 25G "Allowable Antenna Area" then be the wind load for the antennas plus the wind load for the mast? This is probably obvious to everyone but I wanted to double check before I put it up an additional tower. :-). --------------------------------------- You can apply the reduced drag factor for round surface of 2/3 in your calculations. Don't forget the pipe below the top adds area as well. Regards, Norm W4QN _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk ```
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