Mainsail halyard shackle - SailNet Community
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post #1 of 31 Old 10-11-2018 Thread Starter
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Mainsail halyard shackle

Ill be replacing my halyards this year. My main halyard has a headboard shackle spliced onto it, like this one:



It occurs to me that because of this I can not easily "end-for-end" my halyard (as i did with my jib halyard a few years ago when I noticed some serious chafe). it seems like the ability to do that is pretty valuable. I see this sort of shackle:



Using this sort of shackle I could splice an eye at each end of the halyard. Then I could end-for-end it when the time is right. I like that. But it seems (based on my causal observation) that the captive style of shackle (the first image) is much more common.

So I'm wondering about the pros/cons of each style. Which style do you use? Which style do you recommend?

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post #2 of 31 Old 10-11-2018
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Re: Mainsail halyard shackle

Looks good to me. You might want to consider a cotter pin in place of the split ring, tightly crimped it is more secure I think.
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Re: Mainsail halyard shackle

Hey,

My halyard came with a Tylaska shacke (like the first one in your pictures). I am happy with it. If I get chafe on my halyard I will either just replace the whole thing, or cut off the shackle, end for end the halyard, and splice the shackle back on.

I don't know why one shackle would be used over the other. I'm happy with mine, so I will just leave as it.

Barry
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Re: Mainsail halyard shackle

The first one is safer, less parts. The second one offers easy replacement. You cannot end for end the halyard on the first one but you can be sure that your halyard is always on the shackle during use. On the other hand the second one is serviceable. You can easily change the halyard. My personal belief is that the second is more secure for the attachment method to the sail. Although you can use some method for stabilizing the first one the second one will hardly give up.
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post #5 of 31 Old 10-11-2018
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Re: Mainsail halyard shackle

Cut the splice, end for end, resplice.
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Re: Mainsail halyard shackle

Tie a halyard knot and lose the splice, unless itís critical at the masthead.


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Re: Mainsail halyard shackle

Quote:
Originally Posted by Minnewaska View Post
Tie a halyard knot and lose the splice, unless itís critical at the masthead.
You know it's funny but I had not even considered that, but I like it for simplicity sake. Any concern regarding chafe with the headboard? Mine is similar to this:



I *might* have a grommet in the attachment point on the headboard (smoother and easier on the halyard) but sitting here, miles away from my boat, I am not certain.

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post #8 of 31 Old 10-11-2018
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Re: Mainsail halyard shackle

Our headboard is like the one pictured above and we have a knot. Haven't needed to end for end the halyard yet though, and it's at least 10 years old.
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Re: Mainsail halyard shackle

I admire the posters who apparently can re-splice a halyard like it's making a cup of coffee. I would rather rebuild a motor or something.
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Re: Mainsail halyard shackle

Quote:
Originally Posted by paulinnanaimo View Post
I admire the posters who apparently can re-splice a halyard like it's making a cup of coffee. I would rather rebuild a motor or something.
If the halyard is dyneema, splicing it really is like making a cup of coffee - easy and quick, even when used. I can't imagine splicing any other type of halyard after being used.

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