[TowerTalk] Re. Phillystran
Thu, 2 Mar 2000 10:07:13 -0700
Besides ultimate strength, how much does the rope of equivalent
strength stretch before yielding? The tower may fail before the
73, Eric N7CL
>Date: Thu, 2 Mar 2000 10:03:15 -0500
>From: Bill Coleman AA4LR <firstname.lastname@example.org>
>On 3/2/00 9:31 AM, K7LXC@aol.com at K7LXC@aol.com wrote:
>>In a message dated 03/02/2000 6:13:52 AM Pacific Standard Time,
>>> PHILLYSTRAN might be great, but I've been using Dacron rope for over 20
>>> & the sun doesn't affect it, & once the initial stretch is made, no more
>>> stretching occurs. AND, it's less expensive.
>> You better not be using it for tower guying - it's TOTALLY unsuitable
>>for that application.
>Doesn't that depend on how BIG the rope is?
>It's an interesting thought problem -- how big would a Dacron rope have
>to be to have the 4000 lb breaking strength (assuming a small tower) of
>typical EHS or Phyllistran tower guys? Second thought problem -- how
>much would such a mongo Dacron rope cost per foot, compared to EHS or
>Any mechanical engineers out there?
>Certainly one can't replace 3/16" EHS with 1/2" Dacron rope. They aren't
>even in the same league strength-wise.
>Bill Coleman, AA4LR, PP-ASEL Mail: email@example.com
>Quote: "Boot, you transistorized tormentor! Boot!"
> -- Archibald Asparagus, VeggieTales
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