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Thread: Knots

  1. #1
    Join Date
    Oct 2004
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    Default Knots

    Well............ here we are with a very basic question:

    Scenario:

    We want to securely stay in a bay - lets say Mediterranean - we are staying the night - but its windy - the yacht is well anchored but also need a line to shore. Every one else has - so swinging is not an option.

    I have line but its too short, so I need to extend.

    I can find another rope in the lazeratte of equal thickness to make up the difference that I need - what knot would you use to tie the two together?

    I am staying all night and want to sleep well.

    My questions is based on the fact that I have regularly tied the sheet bend and found that gradually , under reversing forces it slipped so some extent - never let go, but could you sleep well with this knot ?

    I know that two bowlines is frowned upon but would you fell safer / or not ?
    One of the 16 Million Remainers.

  2. #2
    Join Date
    Mar 2010
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    Sunny Northumberland
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    Default Re: Knots

    Blood knot or double fisherman's.

  3. #3
    Join Date
    Jun 2017
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    722

    Default Re: Knots

    Quote Originally Posted by Baddox View Post
    Blood knot or double fisherman's.
    Might be hard to undo. What about Riggers Knot/Hunters Bend?

    And what is the objection to two bowline loops?

  4. #4
    Join Date
    Dec 2007
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    Boat: Falmouth. Work: Cambridge
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    Default Re: Knots

    It probably won't matter for a night while you are aboard, but Ashley studied the issue of knots undoing under tugging rather than constant pull. The sheet bend is very bad, double sheet bend a bit better and the Zeppelin knot wins hands-down. A Carrick bend is ok too but needs seizing and is more appropriate for really thick rope (which you won't be using: I imagine 12 or 14mm is easily adequate, and all you'll have anyway).

  5. #5
    Join Date
    Mar 2007
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    Atlantic
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    19,101

    Default Re: Knots

    Two bowlines unless you want to spendhalf the night you were supposed to be asleep figuring out how to tie some kinda snakes orgy.

  6. #6
    Join Date
    Sep 2001
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    Me - Zumerzet Boat - Wareham
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    11,948

    Default Re: Knots

    • If the ropes have eyes in one end interlink the loops to form a reef knot.
    • Make loops - bowlines or double overhand knots then interlink as above.
    • With one loop by ether of the above methods, join with double sheet bend.
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  7. #7
    Join Date
    Nov 2009
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    Home UK Midlands / Boat Croatia
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    18,597

    Default Re: Knots

    I have used a sheet bend in exactly this situation and have never had any problems .... but on reflection I've also used two bowlines for extending a rope but not in a shoreline situation.

    Richard

  8. #8
    Join Date
    Feb 2007
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    Essex
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    21,745

    Default Re: Knots

    When tying an important knot, even a bowline, I sometimes make an extra half-hitch with the free end to anchor it.
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  9. #9
    Join Date
    Nov 2009
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    Default Re: Knots

    I almost always use a double sheet bend and have never observed the slightest slippage. I do tend to leave fairly long tails, so even if it did slip it would have to move a lot (couple of feet) before it came undone. Might help that one of the lines usually seems to end up being octoplait - just a coincidence of the combination of extra warps I have in the locker. In that case I always use the plait for the round-and-round part of the knot - being more flexible than 3-strand it will bind up tighter. It would be interesting to know what sort of rope Ashley used for his tests - most of his work is based on traditional fibre which is grippier than modern line but also stiffer.

    Occasionally on a whim I use a carrick bend. Especially if I'm expecting very heavy load that might make any other knot hard to undo afterwards.

    Pete

  10. #10
    Join Date
    Aug 2009
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    Default Re: Knots

    In an important situation like that never rely on a bowline or two bowline loops unless it they are seized properly because they can come undone.
    Likewise a bowline should never be used for an anchor unless you want to lose it - or the boat!
    My choice would be a Hunters Bend for the shoreline.

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