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[TowerTalk] Crank-up tower limit

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Subject: [TowerTalk] Crank-up tower limit
From: JP Lyet <>
Date: Mon, 8 Jun 2009 05:19:51 -0400
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Had a Tri-Ex LM-354-HDSP cable failure 2 years ago.  Corrosion mostly,  
but actual cause is not known.  Otherwise flawless service for 10  
years.  In retrospect, suspect the antenna load may have been a  
contributing factor as between the 6 band yagi, T2X rotor  and mast,  
the total load was ~200#, or 80% of max load rating for tower!
Tower was totalled and recently replaced with identical unit.  Beam  
refirbed to like new, but reluctant to use due to weight concerns.
Anyone else in the group pushing a crank-up tower to ~ 80% of dead  
load limit on a regular basis?  Any other pearls or advice ?  Suspect  
my beam would be better served on a fixed tower installation and new  
tower with a lighter unit.
(that being the case, anyone interested in a M-67B-3 can contact me  
off-line for specifics)
Tnx, 73
Paul /W3PL in Pa.

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