Joining Anchor Rode

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wannabesailor

What size nylon rode would you suggest should be spliced to 5/16 HT anchor chain -anchor size is 44lb CQR -boat displacement is 18,000 lb and with bowsprit LOA is 42ft? More importantly can you describe how to splice three strand nylon rode to 5/16 HT chain (I've seen in your book how to splice 12 strand but it doesn't work very well trying to unlay 3 strand into 12 strand) Thanks
 
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Mark

Check this link

I use this method of joining my nylon to the anchor chain. Anyones thoughts on this appreciated.
 
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Brion Toss

Traditional Irony

Hello, The only splice we have destruction-tested to anything like 100% strength is the one I call the "Traditional Irony" splice in the "Apprentice". It's also by far the most compact and chafe-resistant. And, unfortunately, very difficult to do well. So if you want to use it, hire it done by someone who can show you test results, or practice a lot and test your work. The next best is simply to crown the ends through and backsplice. Unfortunately your HT chain simply won't take the rope needed, or at least all three strands, through the end link. Score another one for the "Irony" splice, which only puts two strands through that link. You can check comparable strengths, but I believe you'll want 3/4" 3-strand, as 5/8" is a little weaker than your chain. If you aren't going to do the Irony, see if you can get the manufacturer to put an oversize link at the end of the chain. NOT a two-part link. The crown splice, properly done, should give you about 85% of rope strength. The worst splice to do is, I am afraid, the one linked to below. We've never seen or heard of these breaking much over 70% of rope strength, and they tend to bring up a lot of mud, which is why we call them "Shovel splices." This is also the least skill-intensive splice, and hey, when are you ever going to put that kind of load on your rode? The correct answer is, "I don't know." Fair leads, Brion Toss
 
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Mark

More information please Brion

You have stated "The worst splice to do is, I am afraid, the one linked to below. We've never seen or heard of these breaking much over 70% of rope strength". Are you refering to the link provided in my message?? Is it the worst splice to do because it may fail? Are you suggesting that this splice will fail at 70% of breaking stain? If so then "what is the best and stongest method for attaching rope to a chain"??
 
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Brion Toss

Clarification

Hello, And sorry for not replying to your note directly, regarding the link to the splice. Yes, it is my least favorite way to splice directly to chain, though there are lots of boats out there with this splice on their rodes, and very few have gone ashore. I just like knowing that the splice we use is as secure and strong as possible. Our favorite, detailed in my previous note, is also the most compact and chafe-resistant. Fair leads, Brion Toss
 
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