[TowerTalk] Long span lanyard for wire antenna

[Grant Saviers]

I wouldn't use Phillystran if there is any repeated bending such as 
going over a pulley, although it is not clear what "lanyard" means.

Kevlar is fatigue prone unless specifically treated or in a rope 
specifically constructed for extended fatigue life.  In my research into 
Phillystran I didn't find any indication of this.

New England Ropes Sta-Set polyester is my favorite for low stretch, 
durable, and easy to handle line for all kinds of uses beyond what it 
did on my sailboat -(vangs, sheets, halyards, spinnaker pole guys).  Now 
gin pole hoists, temporary guys, multipart blocks, tower rigging, etc.

350ft is a long way for a catenary plus antenna plus coax plus wind 
load.  The tension side load on the tower ought to be considered in the 
design by a PE IMO.

Grant KZ1W

On 4/20/2021 18:45, john nistico wrote:
> Thanks John
> 
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> ________________________________
> From: TowerTalk <towertalk-bounces at contesting.com> on behalf of John Simmons <jasimmons at pinewooddata.com>
> Sent: Tuesday, April 20, 2021 9:14:21 PM
> To: towertalk <towertalk at contesting.com>
> Subject: Re: [TowerTalk] Long span lanyard for wire antenna
> 
> Phillystran!
> 
> -de John NI0K
> 
> john nistico wrote on 4/20/2021 8:00 PM:
>> So my towers are up and aluminum going on. The 4 towers are spaced 350 ft apart. Any suggestions on what I can run from tower to tower for wire antenna supports?
>> NY6DX
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