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  #1  
Old 01-09-2007, 12:44 AM
NickfromWI NickfromWI is offline
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That 12% is for polyester. I am not sure if things change when you go to high tech fibers.

Where are you building these traverses? I've built a couple....

love
nick
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  #2  
Old 01-09-2007, 05:45 PM
benz benz is offline
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Join Date: Sep 2006
Location: Newport RI
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Default Mum's the word

Nick, with the diameters we're talking (3/4--1"), we could stand to lose even 30% of the strength and still have a huge safety margin, although keeping as much as possible is desirable. There are several other options I'm tossing about.
As for the location, I have been adjured to keep silent, lest anyone go and walk my client's gap first. As though anyone would (!?)
Cheerio,
Ben
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  #3  
Old 01-10-2007, 10:53 AM
Justaddwata Justaddwata is offline
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The vast majority of splice breaks will occur at the end of the taper in the bury. (It is considered a good break when this occurs). Considering you are now removing the taper altogether I believe you are going to see a sizable loss in tensile. If you consider that a good portion of the 12 strands are going to be deviating from their normal path to allow for the exiting of the bury.

Given the fact that this is a life critical application and the rope will be taught before it is loaded (applying some high loads) I would approach Samson about having a tensile break done to an eye splice of this configuration. I am sure they would be happy to do it (it will certainly give them some valuable information) and it would certainly be better to know in advance than to have a failure occuring.

As for strength loss following the removal of the splice. I agree this should be minimal provided no damage has occurred to the yarns (and that the rope is indeed not overloaded at the revious splice points).
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  #4  
Old 01-10-2007, 11:45 AM
Bob Pingel Bob Pingel is offline
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Default Stitching Required?

In another thread Brion mentions, "We have also begun making "Yippee Sling" grommets, which are unlocked, so need obsessive stitching, for relatively light duty things like small boat tack and head pendants"

This config is also "unlocked", and the topic of stitching has not yet come up...

Bob
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  #5  
Old 01-11-2007, 08:59 AM
benz benz is offline
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Join Date: Sep 2006
Location: Newport RI
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Default Thinking...

Asking Samson is a good idea; they've been helpful to me in the past. My instinctive reaction to the idea of the splice was mistrust: I like everything to look tidy, and having a hundred-foot tail emerge from amongst the braid of a rope will not be very tidy or symmetrical. Then the thought of undoing and redoing splices doesn't appeal either.
Perhaps I will talk my client into using a different method. After all, there's more than one way to skin a cat....
Thanks all!
Ben
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  #6  
Old 01-24-2007, 10:52 PM
Dan Lehman Dan Lehman is offline
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Join Date: Jun 2005
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Why look for a splice in both ends?
A more flexible approach is to find a suitable object to hitch
the line to with a few turns and an Anchor bend noose.
--a 6-8" dia section of log? (The log would be then tied on each
end back to ...

Quote:
with the diameters we're talking (3/4--1"), we could stand to lose even 30% of the strength
And what to you do for an encore--i.e., to what is this monster rope to be attached,
and how?

There are some rules re making highlines that will need adjustment for use of
such INelastic material (as I think such rules usually apply to nylon low-elongation
ropes used in SAR; I've seen this caution voiced for use of Sterling's "HTP" all
polyester rope, e.g..

--dl*
====
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