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
Get Outlook for iOS<https://aka.ms/o0ukef>
________________________________
From: TowerTalk <towertalk-bounces@contesting.com> on behalf of John Simmons
<jasimmons@pinewooddata.com>
Sent: Tuesday, April 20, 2021 9:14:21 PM
To: towertalk <towertalk@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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