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[TowerTalk] EHS or Philly?

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Subject: [TowerTalk] EHS or Philly?
From: "Jon M. Knodel" <>
Date: Mon, 15 May 2006 01:41:44 -0700
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Hello all,

Thank you everyone for the help so far.  I am back with another question though.

It has actually worked out that Phillystran would be cheaper for me to use than 
EHS broken up into +/-11' lengths.  I am leaning toward using it but am 
concerned about it's stretch.  On K7NV's site (great info on tower design and 
loading), he runs one scenario (using Grape software) where the tower actually 
failed due to the Phillystran stretching too much.  Granted, this was on a 100' 
R45 and my installation would be a 60' R25 but it still concerns me.  Do you 
think it would be possible for the Philly to cause a failure?  If so, would it 
be solved by increased initial tensioning (say 15% or maybe even 20% as 
compared to 10%)?  Any help would definitely be appreciated.  Thanks.

73 es gud DX!,

Jon, N7XW

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