[TowerTalk] polyrod

[Michael Tope]

I believe for the same tensile load, phylistran stretches more than the 
equivalent (same load
rating) EHS steel guy. Kurt K7NV did some really interesting analysis on 
this:

http://k7nv.com/notebook/towerstudy/towerstudy1.html

And here is some specific information comparing the properties of steel, 
kevlar, and fiberglass
guy material:

http://k7nv.com/notebook/topics/guycable.html

73 de Mike, W4EF.................................................


----- Original Message ----- 
From: "Jim Lux" <jimlux at earthlink.net>

> From: "Roger K8RI on Tower" <k8ri-tower at charter.net>
>> Why not just use one of the Kevlar cables such as Phylistran, or the one
>> AES sells just called Kevlar guy line?
>>
>> Nothing is perfect, but so far I like the light weight and easy handeling
>> of the Kevlar lines.  Does Polyrod have an advantage over this?


> What's the stretchy-ness of Polyrod vs aramid (Phillystran, Kevlar, etc.) 
> vs
> steel?  That has an effect on the overall performance.
>