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  #1  
Old 12-31-2012
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Spectre rope

Anybody used Spectre rope for standing rigging on a trailer sailer?
I have a Hunter 19 and some of the stainless wire shrouds need replacing. Was thinking about using Spectre. Any comments are appreciated
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Old 12-31-2012
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Re: Spectre rope

Dyneema is what is used in most synthetic rigging. Here's a link to the leader in the field. It is not going to be a lot less than the wire though to do properly.
http://www.colligomarine.com/Colligo.../Dynex-Dux.htm

by the way it is "spectra"
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Old 12-31-2012
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Re: Spectre rope

I assume you mean "Spectra", which is an identical product to the aforementioned Dynex Dux.

I did a calculation for my old boat regarding using Dyneema/Spectra/Dynex for standing rigging rather than wire and the costs were surprisingly close. The synthetic rigging cost more per running foot, but the fittings are much cheaper than those for wire.

What you will need to take into account is line creep, but apart from that I see mainly advantages for standing rigging. I examined a big Catana which had converted to Dynex and was very impressed and the weight savings were amazing.
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Old 12-31-2012
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Re: Spectre rope

I'm curious how using dyneema for standing rigging holds up to abrasion. My jib sheets routinely chafe against the rigging, not to mention every hose, sail or anything else I've ever dragged to the foredeck.
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Re: Spectre rope

In areas of heavy chafe one can use the outer cover of double-braid line which holds up rather well. I had my lifelines in Dyneema SK75 and the chafe on the after a year of use (including where the genoa lines rub/bang against them) was barely noticeable.
What these materials don't do well is heat up (i.e. through friction) but that is more of an issue in running rigging. And they can be cut by sharp objects such as a knife which won't have much effect on 1x19 wire.
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Re: Spectre rope

Quote:
Originally Posted by Zanshin View Post
...I had my lifelines in Dyneema SK75 and the chafe on the after a year of use (including where the genoa lines rub/bang against them) was barely noticeable.....
Of course, a covering makes sense. However, barely noticeable is far beyond what one year old wire would endure. How well will it hold up after 5 or 10 years?
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Re: Spectre rope

Uncovered dyneema used as lifelines won't last 5 or 10 years; nor did I expect it to. If used as standing rigging, any area expect to see chafe should be protected; but that area/length is minimal compared to the total length of rigging.

Also, the standard 12-strand braid of Dyneema is extremely easy to splice (even without tools) and one can carry the line required for a complete rigging change in a canvas sailor's bag. Apart from not having room for the same amount of wire rigging, one would also need tools and spares for swaging wire.

Despite my liking for Dyneema, I opted not to use it for standing rigging as I'm a cruiser and not a racer and any weight savings in the rigging would immediately go to additional storage belowdecks for "stuff".
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Re: Spectre rope

Quote:
Originally Posted by Minnewaska View Post
Of course, a covering makes sense. However, barely noticeable is far beyond what one year old wire would endure. How well will it hold up after 5 or 10 years?
You're asking yourself the wrong question. What is the line chafing on? Fix that. Chafe isn't good in any case.

For a trailer sailor synthetic rigging makes a lot of sense, not so much for the cruiser who doesn't go up the rig twice a year. Wire is a PITA when you're stepping a rig everytime you want to sail.
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Re: Spectre rope

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Originally Posted by zz4gta View Post
You're asking yourself the wrong question. What is the line chafing on? Fix that. Chafe isn't good in any case.

For a trailer sailor synthetic rigging makes a lot of sense, not so much for the cruiser who doesn't go up the rig twice a year. Wire is a PITA when you're stepping a rig everytime you want to sail.
Trailer sailer use makes sense.

No way I can think of to avoid our jib sheets chafing against the forward diagonal stays as you tack a 135 genny.
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Old 01-01-2013
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Re: Spectre rope

You can either add chafe protection to the line, or use rollers on the shrouds. Lots of ways to skin a cat.
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