[TowerTalk] Rohn 25G

[Grant Saviers]

Except if the rope is low stretch, e.g. Arimid, dacron/polyester and 
kevlar are alternatives.  Some stretch less than steel.  DO NOT use 
nylon or polypro.  Since these ropes are temporary you don't need to 
worry about UV or fatigue failures.  Check the West Marine or New 
England Rope sites for specs and the multitude of choices.  A very low 
stretch 3/8 is plenty strong enough for temporary guys above the last or 
base guy, so get lengths long enough for your higher sections, and you 
will be much more comfortable.  These fibers have replaced wire rope in 
nearly all sailboat low/near zero stretch applications.

Low stretch line in your gin pole is nice as it permits positioning the 
tower sections without stretch induced oscillations.  I use 250' of NER 
Sta-Set double braid polyester in 7/16", low stretch and good grip for 
the hands and fits my R2545 ginpole sheave.  Works for up to 110' 
towers, and no spin with double braid.

Grant  KZ1W


On 8/18/2013 10:55 AM, bob finger wrote:
> And temporary guys must NOT be rope.  Don't ask!  Rope stretches. It 
> is no fun to ride even 10 or 20 feet of tower to the ground.  Use the 
> guy material you will be putting on permanently with turnbuckles etc 
> so you can tighten up those temporary guys.  73 bob de w9ge
> On 8/18/2013 12:55 PM, Earl Morse wrote:
>
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