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1. [TowerTalk] Mast strengths (cookbook) (score: 1): Author: psoper@donedeal.encore.com (Pete Soper); Date: Wed, 30 Apr 1997 18:59:45 -0400; For the folks that enjoy knowing how to do this stuff yourselves: Section modulus(of a hollow cylinder) = pi*(D**4 - d**4)/32D Where D is the outer diameter and d is D minus two times the inner diame; /archives//html/Towertalk/1997-04/msg00953.html (7,333 bytes)

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