Can I use arborist rope for halyards and sheets? - SailNet Community
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post #1 of 60 Old 05-25-2016 Thread Starter
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Can I use arborist rope for halyards and sheets?

I have the opportunity to buy new arborist rope at a good price. It is double braided polyester rope made by a reputable company (New England) with a sufficient breaking strength (5000 lb for 1/2" rope). And, of course, arborist rope is static, it is not dynamic rope for climbers.

Is there any reason I could not use this for halyards? And maybe the 5/8" version for sheets? This is for a 32' boat, coastal sailing. And I am obviously not a racer...

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Re: Can I use arborist rope for halyards and sheets?

If the arborist rope is dacron polyester double braid and is constructed for low stretch, then yes.

If the arborist rope is nylon double braid (similar or equivalent to mountain climbers 'kernmantle') then it will be too 'stretchy' for use for halyards, etc. Arborists usually use a nylon kernmantle braid which is stretchy so that impact is lessened when they FALL. The arborists version of kernmantle usually has an extra-thickly woven outer cover for added abrasion resistance.

https://en.wikipedia.org/wiki/Dynamic_rope
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Re: Can I use arborist rope for halyards and sheets?

Spend your money on the right stuff; your wasting your time and will not save money or time!...Dale
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Re: Can I use arborist rope for halyards and sheets?

I have tried some on our Prindle Cat and it seemed to get stiffer every time we used it. it did not run through the blocks well and got twisted easily. halyards on a 32' boat do not need to be 1/2" if you use some of the new marine rope available. whats a good price? all that is needed is 5/16'" and marine halyard rope that size will have a breaking strength of well over 5000 lbs. 5/8" for sheets is also a bit large. I know it will be easier on the hands but can your winches and cleats handle that size line.
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Re: Can I use arborist rope for halyards and sheets?

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....nylon kernmantle braid
Just for information, "Kernmantel" is just the German word for double-braid and is also used for lines on a boat.


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Re: Can I use arborist rope for halyards and sheets?

There is no such thing as "arborist rope." Check the New England Ropes website. Under the Arborist tab, you'll see multiple categories, each with multiple rope choices. Some of those ropes, such as STA_SET and Endura, are listed in the Marine rope section, too. An arborist would be a fool to use those lines for self-protection, and New England does not recommend that they do. New England does sell dynamic rope for arbor work.

My boat came equipped with over-sized lines. The halyards were too big to make a proper cleat hitch on the installed cleats. The jib sheets were too big for their camcleats, resulting in difficulty in setting them and random releases. I downsized the lines and now everything is more pleasant and secure. Proper line is not so expensive, if you don't get into the high end racing rope.

Last edited by jwing; 05-25-2016 at 10:51 AM.
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Re: Can I use arborist rope for halyards and sheets?

Quote:
Originally Posted by RichH View Post
If the arborist rope is dacron polyester double braid and is constructed for low stretch, then yes.

If the arborist rope is nylon double braid (similar or equivalent to mountain climbers 'kernmantle') then it will be too 'stretchy' for use for halyards, etc. Arborists usually use a nylon kernmantle braid which is stretchy so that impact is lessened when they FALL. The arborists version of kernmantle usually has an extra-thickly woven outer cover for added abrasion resistance.

https://en.wikipedia.org/wiki/Dynamic_rope
It is polyester, not nylon.

I know even less about tree-climbing than about sailing but I read that 'arborist rope' is typically static, not dynamic rope. Reason is that they actually climb the rope which is something you don't want to do on a dynamic rope (much of your energy is wasted).

FWIW, the rope I am looking at is this one ::*Teufelberger:*Braided Safety Blue

The specs say it has 3.5% elongation at 50-150Kg. I don't really know how that compares to 'marine' rope. The el-cheapo West Marine double braid says "Average Stretch
2 to 4%" SEAFIT Economy Polyester Double Braid | West Marine
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Re: Can I use arborist rope for halyards and sheets?

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I have tried some on our Prindle Cat and it seemed to get stiffer every time we used it. it did not run through the blocks well and got twisted easily. halyards on a 32' boat do not need to be 1/2" if you use some of the new marine rope available. whats a good price? all that is needed is 5/16'" and marine halyard rope that size will have a breaking strength of well over 5000 lbs. 5/8" for sheets is also a bit large. I know it will be easier on the hands but can your winches and cleats handle that size line.
The long-term characteristics is really useful first-hand information. Hm. Have to ponder that.

I know that I could easily get away with a thinner rope for the halyards but I currently have 1/2" and like it. If the cost is low, why have the rope cut in my hands?

Good point also on the too-thick material for sheets. My current sheets actually ARE too thick, and it is a bit of a pain to get them into the blocks in the first place. After that, they are a pleasure to use. I _believe_ that I currently have 3/4" but your post reminded me that I should measure the diameter before potentially ordering ANOTHER too big rope...
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Re: Can I use arborist rope for halyards and sheets?

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Originally Posted by jwing View Post
There is no such thing as "arborist rope." Check the New England Ropes website. Under the Arborist tab, you'll see multiple categories, each with multiple rope choices. Some of those ropes, such as STA_SET and Endura, are listed in the Marine rope section, too. An arborist would be a fool to use those lines for self-protection, and New England does not recommend that they do. New England does sell dynamic rope for arbor work.

My boat came equipped with over-sized lines. The halyards were too big to make a proper cleat hitch on the installed cleats. The jib sheets were too big for their camcleats, resulting in difficulty in setting them and random releases. I downsized the lines and now everything is more pleasant and secure. Proper line is not so expensive, if you don't get into the high end racing rope.
All good points. I looked at the New England Ropes arborist site, it is this one, right?::*Teufelberger:*Arboriculture
The rope I am looking at is this ::*Teufelberger:*Braided Safety Blue

Stretch is given as 3.5% for 50-150Kg so I suppose this is static line, right?

I have currently 1/2" halyards and they are a perfect fit for winches and cleats.

Last edited by MastUndSchotbruch; 05-25-2016 at 12:21 PM. Reason: typo
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Re: Can I use arborist rope for halyards and sheets?

Why wouldn't you just buy rope that's fit for purpose? You CAN use virtually any rope for sheets. But why would you?
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