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Old 28-07-2020, 19:57   #16
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Re: Mixed rode rope choices

3 strand is definitely a poor choice due to how badly it goes into a locker. Double braid doesn't splice to chain nicely, so that just leaves the other single braid constructions. I figure 8 and 12 strand are pretty equivalent there. So it's mostly a question of what material is best suited to the job, even if it's low stretch and needs a snubber.
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Old 29-07-2020, 01:57   #17
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Re: Mixed rode rope choices

Why are you using the gypsy? Do you not have a drum on the other end of the widlas for rope???
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Old 29-07-2020, 02:00   #18
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Re: Mixed rode rope choices

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Originally Posted by Pillroller View Post
Why are you using the gypsy? Do you not have a drum on the other end of the widlas for rope???
They are designed for that. Works better than the drum because you don't have to tail it.

Drum is for warping, not handling rope rode.
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Old 29-07-2020, 03:03   #19
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Re: Mixed rode rope choices

Nylon can absorb water and a, lose some strength & b. may get stiffer because of the swelling fibres.
good move to ditch it.
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Old 29-07-2020, 05:15   #20
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Re: Mixed rode rope choices

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Why are you using the gypsy? Do you not have a drum on the other end of the widlas for rope???

As Dockhead said, it's a combo rope/chain gypsy. It's meant to pull rope spliced to chain without manual intervention. In my mind, having to manually tail rope, then feed it into the locker before switching to the chain, all while giving hand signals back to the helm to keep the boat positions is a non-starter. Plus, the drum on my horizontal windlass isn't even close to aligned with the roller.
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Old 31-07-2020, 09:58   #21
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Re: Mixed rode rope choices

I also use three strand nylon, spliced onto a 100' chain rose. 40' boat. No chafe issues.
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Old 01-08-2020, 15:58   #22
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Re: Mixed rode rope choices

Some info that hopefully will assist you rslifkin:

Nylon has more stretch than polyester, making it more prone to chafe, dependent on loads (as described below):
- When loaded at 20% of Breaking strength: 3strand Nylon will stretch ~10%,
8 Polyester ~3% (Source: Samson Ropes)
- Polyester line is as much as ten times better than nylon in dealing with chafe (Source: Yale Ropes). Snatching and wandering up and back from the anchor in a gale will increase chafe at the rub points due to this greater stretch of nylon, as the nylon is moving back and forth more under loads. This is more a factor on larger boats and when longer lengths of nylon are deployed.

You can deal with the reduced elasticity of polyester line, and the resulting lower energy absorbing capacity, by simply veering more line (Steve Dashew). However, getting the right balance of load absorption from the lengths of 8 plait polyester deployed and it's diameter/breaking strength is a consideration, especially when in tight anchorages. Could you use a rope snubber (of greater stretch) with the primary rope rhode..how will the rope snubber rolling hitch tie, hold and untie on the primary rope?

Nylon is more prone to abrasion than polyester when wet, losing up to 50% of its abrasions resistance when wet (Source: New England Ropes).

Nylon 3 strand can cockle (open up the lay of the strands) under rotational twists of veering on anchor. This cannot happen with 8 plait polyester, as it doesn't matter which way the rope is twisted, it only tightens the lay (Source Jimmy Green).

Arguably the best 8 plait polyester is made in Italy by LIROS. It is branded as LIROS Squareline PES - Octoplait. Like you, hard to get in my country (Australia). Can be purchased and shipped from Jimmy Green in the UK.

Better to match anchor components by using minimum breaking load (MBL), as working load limit (WLL) is derived by a particular safety factor (SF) applied by the manufacturer....commonly 5:1 for rope (i.e. WLL = MBL / SF).
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Old 01-08-2020, 17:30   #23
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Re: Mixed rode rope choices

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Originally Posted by JK SV Pretorien View Post
...

Nylon 3 strand can cockle (open up the lay of the strands) under rotational twists of veering on anchor. This cannot happen with 8 plait polyester, as it doesn't matter which way the rope is twisted, it only tightens the lay (Source Jimmy Green)....

Only partially accurate.


3-strand can only hockle under load IF one end is free to rotate. The anchor is fixed and the cock is fixed. This can ONLY happen if the anchor has a swivel, which it should never have with laid rope for this reason.


If this was a thing we would see it in dock lines on a daily basis. We don't because both ends are fixed.



Rigging 101.


[It's also pretty darn unlikely if the rode is not stressed beyond it safe working load.]
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