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Rope To Chain Splice With 8 Plait

A rigging master shares his techniques for creating a strong, low-profile splice that feeds smoothly through a windlass

A white splice being measured by a yellow tape measure.

No matter what size or type of boat you have, the most important single piece of rope aboard is the one that secures your boat while at anchor. Many anchors have a short leader of chain to help the catenary angle of your rope rode keep your anchor securely dug in on the bottom. For many years it was a challenge to splice a three-strand rope to that chain so that the transition would feed through a windlass. With the development of a special eight-plait rope designed specifically to grip well in the windlass, the only challenge left was making an elegant splice that would feed the chain smoothly without jumping the rails.

Difficulty

  • Moderate

Materials

  • Eight-plait rope
  • Anchor chain
  • Whipping twine
  • Electrical tape

Tools

  • Fid length splicing gauge/ruler
  • 1⁄4-inch picker fid
  • Ceramic knife or microserrated ­scissors
  • Hot knife (or a lighter)

Time

  • 1 hour

Cost

  • Around $2.80 per foot of 5⁄8-inch nylon eight-plait rope, plus tools & other materials as needed

Though there are several ways to splice this eight-plait rope, the method shown here makes the smoothest, lowest-profile transition from rope to chain. Most commonly made of nylon, this rope has a nice stretch for anchor rodes; it’s also made of polyester in the larger sizes. Another advantage that it has over three-strand rope is that it stows more compactly in the locker and doesn’t get so stiff as it ages.

This splice requires the chain to be sized in proportion to the rope. If all the strands fit comfortably through the last link, this splice will run easily through a windlass.

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How to Splice Double Braid Line

10 separate illustrations demonstrating how to create a splice.

1. Begin by tying a stopper using some whipping twine to constrict the line from unraveling too far. Tie this stopper about eight or so “picks” (twists of the rope) back from the tail end.

2. Tape each of the strands, unravel them back to your stopper, and put them in pairs.

3. Half the rope (two-strand pairs) will be pushed through the last chain link from one side.

4. The other two pairs will be pushed through from the opposite direction.

5. Snug them gently, then dive under one standing pair with a fid, as shown.

6. Take the next strand pair, get it under the adjacent standing pair, and snug it up.

7. Now separate the strand pair and go over-one-under-one with one, and under-one-over-one with the other. In summary, the first tuck is both strands under both standing strands. Then, after that, each strand will follow its own pattern. It’s easier than it sounds. Follow the illustration.

8. After you’ve done the same with all of them for three or four tucks, leave one strand from each pair behind and carry on with the other. This will form a nice taper.

9. A few tucks later, you can trim the tails.

10. There it is: strong, ­lissome, and ready for use.

Tip

When trimming ends with a hot knife (or a lighter), make a big pancake of melted material close to the body of the splice so they won’t back out. You can even glue them with the melted end if you’re very careful not to melt the standing strands. Take care not to weaken the line and splice. 
Cover of the first edition Modern Splicing book

A New Splicing Book For Modern Ropes  

A former technical climber, Ben Zartman has used his extensive mountaineering and seafaring experience to master the use of today’s modern rope materials, such as Dyneema, and has shared his techniques in his new book “Modern Splicing Handbook,” available now on his website (zartmancruising.com). The book teaches splicing techniques for eight- and 12-plait, three strand, double braid, Dyneema, Technora, polyester, and more. Ben’s website also offers the simple tools and materials you’ll need to ­create your own safe, strong splices.

After sailing a home-built sailboat from California to Newfoundland, Ben, his wife, Danielle, and their three daughters settled in Rhode Island, where Ben runs his own rigging business, teaches splicing and ropework at the International Yacht Restoration School in Newport, and supplies rigging tools and materials on his webstore. One of his daughters, Antigone Zartman, illustrated the splicing techniques in the book.

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Author

Ben Zartman

Contributor, BoatUS Magazine

Ben and Danielle Zartman, and three young daughters live aboard their 31-foot Cape George cutter, which they built themselves for long-distance cruising. Ganymede spent last winter at the dock in Newport, Rhode Island, while Ben worked as a boatwright for the International Yacht Restoration School.