[TowerTalk] Guying a vertical...???

[Roger (K8RI) on TT]

Unprotected Kevlar is susceptible to the elements. It's normally 
sheathed in PVC The ends are capped and sealed to keep moisture out as 
in Phillystran.  It's a bit on the expensive side, but I use it to guy a 
100' 45G  at 3 levels. The bottom 2 are 4400#  strength (1/4") with the 
top being 6600 (5/16ths) with a large array on top.

I've been to the top when the wind was near my limit, yet I felt no 
movement in the tower.  OTOH the 30' mast out the top was moving like a 
Bluegill fly rod that had just tied into a monster Bass!
http://www.rogerhalstead.com/ham_files/Tower29.htm

73

Roger (K8RI)



On 8/30/2015 12:08 AM, Alex Malyava wrote:
> What about Kevlar rope like one used in spiderbeams?
> They also claim it is UV resistant and does not stretch.
>
> On Saturday, August 29, 2015, Patrick Greenlee <patrick_g at windstream.net>
> wrote:
>
>> Dacron has very low stretch and is available in black which is pretty UV
>> resistant.  Nylon is pretty much like guying with rubber bands.
>>
>> Patrick         NJ5G
>>
>> On 8/28/2015 10:22 AM, Douglas M. Ruz Sobrado wrote:
>>
>>> Hi,
>>>
>>> I am working in a vertical for low bands (160, 80 and 40m)...i am using a
>>> combination of 1 1/2" OD aluminum tubes to build a 54 ft high vertical.
>>>
>>> I am looking for UV resistant rope for guying...what is the best diameter
>>> 3/16 or 5/16"???
>>>
>>> Any idea ???...any website from the US ???
>>>
>>> Thanks,
>>>
>>> 73...Doug, CO8DM
>>>
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-- 

73

Roger (K8RI)


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