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Animated Knots by Grog

TIE KNOTS THE FUN AND EASY WAY

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Bowline on a Bight

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Boating Index Boating Usage

Alpine Butterfly Bend Alpine Butterfly Loop Anchor Hitch Ashley Stopper Knot Bowline Bowline on a Bight Bowline, Running Buntline Hitch Carrick Bend Chain Splice Cleat Hitch (Deck) Cleat Hitch (Halyard) Clove Hitch (Half Hitches) Constrictor (Twisting) Double O'hand Stopper EStar Stopper Knot Eye Splice Figure 8 Icicle Hitch (Loop) Halyard Hitch Heaving Line Knot Lighterman's Hitch Midshipman's Hitch Pile Hitch Rat-Tail Stopper Rolling Hitch Round Turn & Hitches Soft Shackle Soft Shackle Edwards Trucker's Hitch Stevedore Stopper Zeppelin Bend

Knot Terminology Knot & Rope Safety Rope Properties Contact
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Bowline on a Bight Tying

In the middle of a piece of rope, form a bight. Make a loop and pass the end of the bight through it. Open up the bight and bring it around the entire knot until it encircles both standing ends. Tighten to complete the knot.

Bowline on a Bight Details

Uses: The Bowline on a Bight (ABOK # 1080, p 195) makes a secure loop in the middle of a piece of rope. It does not slip or bind. It is satisfying to start with a plain length of rope and finish with a secure safe loop in its middle. See also the Alpine Butterfly.

Tying it: It should be easy to tie but because it is initially hard to visualize it can be confusing. This knot was one of the justifications for preparing these animations.

Several Applications:

  • Foothold: It can be used to make a secure foothold in the middle of a piece of rope.
  • Trucker
    Trucker's Hitch

    Trucker's Hitch
  • Emergency Purchase: A Bowline on a Bight can also be used to gain some additional purchase: create a Bowline on a Bight in the rope; pass the free end of the rope round a post, then back through the loops and finally to the post again. This gives a three to one purchase - admittedly with some friction. However, see also the Trucker's Hitch.
  • Bosun's Chair: Because two loops are created it has been claimed that it makes an emergency bosun's chair which is more comfortable than a single loop. One loop can go round each thigh with the free tail going round the chest for security. Alternatively, one loop would go round the chest and one round the thighs. However, unless the rope was a couple of inches or more in diameter it would require a demanding emergency to make one really appreciate the "comfort" of either of these bosun's chairs.
RootBizzle Tie Club

Disclaimer: Any activity that involves ropes is potentially hazardous. Lives may be at risk - possibly your own. Considerable attention and effort have been made to ensure that these descriptions are accurate. However, many critical factors cannot be controlled, including: the choice of materials; the age, size, and condition of ropes; and the accuracy with which these descriptions have been followed. No responsibility is accepted for incidents arising from the use of this material.

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Updated March 8, 2014

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