Splicing octoplait to chain

[stuartwineberg]

Couple of questions. Interesting that Jimmy Green only splice 14mm octo to 7mm chain or bigger. Is there room in 6mm chain to splice in 14mm?
secondly can anyone point me to how to do the splice that takes the rope through several links of the chain. All I can find is the backsplice that fastens the rope just to the last link.

 

[ctva]

IAnchorplait Splicing Instructions - Jimmy Green Marine

I think you will find that the back splice onto chain is as strong and better all round than the long splice.

 

[nigel1]

Can't answer about whether you can use 14mm rope on 6mm chain, but guide to the splice is here
8 Strand to Chain Splice

 

[davidpbo]

I downloaded a diagram of how to join octo to chain from the Jimmy Green website last year.

I would ask them about 14mm to 6mm chain.

 

[Ink]

Buy a metre of 14mm and attempt the splice yourself. It maybe doable but just take much longer hence the reason that Jimmy Green don't offer that service.

Ink

 

[stuartwineberg]

IAnchorplait Splicing Instructions - Jimmy Green Marine

I think you will find that the back splice onto chain is as strong and better all round than the long splice.

Interesting, so based on the diagram in your link, you are saying the 11 link splice is not as strong as a simple splice through one link and then back into the rope - in other words a very small eye splice with a link of chain the eye. I think the terminlogy is a bit confusing

 

[Rappey]

I spliced into 200mm of chain.. Some years later it was a solid rusty lump that would not bend... Next time i will use a shackle or similar and an eye

 

[JimC]

I spliced into 200mm of chain.. Some years later it was a solid rusty lump that would not bend... Next time i will use a shackle or similar and an eye

Yes, I think that's the best way if you don't have a windlass to contend with. Use a shackle with a flush pin and a metal thimble.

 

[Neeves]

We simply have an eye splice, no thimble, and a shackle. 12mm 3 ply onto 6mm chain. We have an enlarged link on the 6mm (an Omega link) and use a 3/8th" shackle. Instead of the Omega link you could use a hammerlock. Neither Omegas nor hammerlocks are available galvanised (or I have never seen them, not at that size) but they are cheap and you could use them until they are manky - and then replace. You buy them from anyone supplying the lifting industry. Van Beast of Holland and France make them in their Excel range (from France). We haver our Omega and hammerlocks galvanised for our selves, you just need to find a sympathetic galvaniser or piggy back on a batch when someone has their chain galvanised. They are small enough to send by post. If you follow this route use a G100 quality. Omega links look like the Greek letter Omega (hence the name) but they come in various forms, some are long and are called pear links - again if you consider using them check the other shapes they may be better for your specific application. I'm trialing a couple of different designs currently.

We monitor the eye splice every time we use it.

I'm not convinced the thimble offers any additional security. Wear comes from the splice rubbing on the seabed and a thimble offers no protection. The shackle is quite smooth, though there will be abrasion from sand in the splice. The 12mm is a bit undersized but the primary use is in a 'V' so the 12mm is not SO critical. We deploy our mixed rode by hand.

Jonathan

 

[LadyInBed]

The 'hole' in 6mm chain is 11x14 mm in the end link and 11x8 mm in subsequent links. Getting 8 strands of 14mm octoplait in those holes will be like getting a quart into a pint pot.
Measurements from Non Calibrated Galvanised Short Link Mooring Chain

 

[Neeves]

Sorry this was meant to be a simple edit.

We simply have an eye splice, no thimble, and a shackle. 12mm 3 ply onto 6mm chain. We have an enlarged link on the 6mm (an Omega link) and use a 3/8th" shackle. Instead of the Omega link you could use a hammerlock. Neither Omegas nor hammerlocks are available galvanised (or I have never seen them, not at that size) but they are cheap and you could use them until they are manky - and then replace. You buy them from anyone supplying the lifting industry. Van Beast of Holland and France make them in their Excel range (from France). We haver our Omega and hammerlocks galvanised for our selves, you just need to find a sympathetic galvaniser or piggy back on a batch when someone has their chain galvanised. They are small enough to send by post. If you follow this route use a G100 quality. Omega links look like the Greek letter Omega (hence the name) but they come in various forms, some are long and are called pear links - again if you consider using them check the other shapes they may be better for your specific application. I'm trialing a couple of different designs currently.

We monitor the eye splice every time we use it.

I'm not convinced the thimble offers any additional security. Wear comes from the splice rubbing on the seabed and a thimble offers no protection. The shackle is quite smooth, though there will be abrasion from sand in the splice. The 12mm is a bit undersized but the primary use is in a 'V' so the 12mm is not SO critical. We deploy our mixed rode by hand.

My advice would be use an Omega link and an eye splice. The Omega link will sadly not pass through a gypsy, automatically. The only way I can think of fudging a 14mm rope to 6mm c chain splice would be to use a short dyneema length attached to the chain and then splice the 14mm to the dyneema. This doers involve 2 splices, which would be a worry to me if I did it - but ask Jimmy Green.

Jonathan

 

[Stemar]

I don't know about immediate strength, but I could see an eye splice being stronger than a rope to chain splice as rope to rope friction is likely to be higher than rope to metal. However, you are introducing a wear point with an eye splice, and the wear won't be immediately noticeable until the line has been weakened significantly. OTOH, with the splice, you're ensuring that a few inches of chain stay wet with sea water, so they'll rust and you'll need to chop them off and redo the splice every several years.

I'm not on board, so I can't check, but I have 6mm chain and I believe my octoplait is 14mm. I managed to splice it, but it was a bit of a struggle, though that isn't necessarily a bad thing, as it means it'll struggle even more to come undone.

 

[Mudisox]

I am resigned to redoing the lomng splice to the chain every year, and discarding the couple of feet previously used. It allows me to clean off and check the end of the chain as well as remove the worn rope. Nice thing to do on a sunny day and a check on all the chain with it out.
I have a lofrans winch and 50m 10mm chain with 75m of 12mm octoplait.

 

[Neeves]

I chop off a few links of rusty chain on the primary rode every couple of years - normal practice. It has no rope - the links rust, presumably, because there is corrosion accelerated because I have the metal of the anchor shank, the shackle and the chain - all of which are inevitably different alloys (even thought they are actually all of similar strength.

Jonathan