Monday, April 14, 2008

Splicing - how hard can it be?

I need a loop spliced in the end of this rope.

SplicingThe plan being I can attach a shackle between this and the end of my anchor chain, so extending the length of line I have available to anchor if needs be.

A spliced loop is needed, as a knot will not go through Lady Jane's hawse pipe.

Anyway, I thought to myself, how hard can a splice be?

The picture shows how far I got before breaking the fid I had. Truth be told, it was all going wrong before then anyway.

It all looks far easier to do in the pictures than it is in real life.

This is the point where I decided this is something best entrusted to a professional, at least until I've had more practice.

No wonder when I mentioned to John, the skipper, that I'd try to splice that rope myself I got a kind of non committal answer.

9 comments:

  1. At least you had a try! and you are right its not that difficult try again and you will be successful I am sure!

    ReplyDelete
  2. Hi Rob

    I'm planning on giving it a go on some easer (smaller) rope.

    Maybe the new RIB mooring lines.

    It's a bit committing to be learning on Lady Jane's anchor system.

    Regards

    Tim

    ReplyDelete
  3. Tried it myself , the results were embarressing.

    ReplyDelete
  4. Thinking about this further, if you are going to use a shackle on your chain end? you may be better off with an end splice "d*gs c*ck" and just connect the warp to the shackle with a couple of round turns and a couple of half hitches. My thinking on this
    (other than splicing the warp directly to the chain) is that a shackle on that eye splice will give you about eight hours of moderate (sea) mooring before it parts, (having worn through)whereas a couple of round turns and a couple of half hitches will give you considerably more wear free attachment ( the round turns hold fast to the shackle body preventing much wear from movement, which will take place between the shackle and the chain)! Just a thought, I would still worry that I would loose my anchor and chain so be vigilant :o))

    ReplyDelete
  5. Of course you could use a heavy duty metal thimble within the eyesplice? but I guess that too would not go through the hawse pipe?

    ReplyDelete
  6. Hi Rob

    A good point that, the wearing through issue, one I had not considered.

    This is a bodge job, for just in case we need to use an anchor.

    Anyway, I would have thought that there would not be too much chaffing on the warp/chain shackle join, as the whole length of the chain and warp provides stretch and flexibility in the system.

    I really need to do a proper job on the whole anchor system sometime soon, as the stuff I have in place right now is sub-optimal.

    For a start, I would prefer a hydraulic, chain only system (£££).

    Regards

    Tim

    ReplyDelete
  7. Hi Andrew

    I'm determined to persevere, as spliced loops are so handy on board.

    All I need is easier rope to work with. That thick rope is not ideal for learning.

    Regards

    Tim

    ReplyDelete
  8. A rope anchor cable, on a vessel the size of Lady Jane? Ouch!

    I can't tell from the picture what size that line is, but in my world anchor ropes (as opposed to chains) exist only on relatively small yachts.

    It's not just a matter of strength, but of weight - the pull on the anchor needs to be absolutely horizontal, along the seabed. The weight of (enough) chain puts a good curve in the cable so that there's plenty of it lying flat on the bottom. A rope cable will tend to describe more of a straight line from the end of the chain you do have, up to the boat. Any pull on that will tend to lift chain off the bottom; each foot lifted is a step closer to breaking out the anchor.

    As for discounting Rob's point about "wearing through" - ignore chafe in an anchor system at your peril. You'd be surprised at how quickly things can go, not to mention shackles undoing themselves from the motion. Fix (delay) that with mousing wire (traditional) or a beefy cable tie (less likely to cause galvanic corrosion) through the shackle pin hole. Or at your sort of sizes, get the kind of shackle that does up with a big nut, and stake it with a cold chisel and a lump hammer.

    ReplyDelete
  9. Hi Pete

    This arrangement was intended as a temporary setup - in case we had to drop a hook on the way round from Fareham. No more than that.

    Remember I was under considerable pressure from Lafarge to leave at that stage.

    I still need to sort out a proper winch and chain setup as a permanent solution.

    Regards

    Tim

    ReplyDelete