The running bowline is a

knot A knot is an intentional complication in Rope, cordage which may be practical or decorative, or both. Practical knots are classified by function, including List of hitch knots, hitches, List of bend knots, bends, List of loop knots, loop knots, ...

consisting of a

bowline The bowline ( or ) is an ancient and simple knot used to form a fixed loop at the end of a rope. It has the virtues of being both easy to tie and untie; most notably, it is easy to untie after being subjected to a load. The bowline is sometimes ...

looped around its own standing end to create a

noose A noose is a loop at the end of a rope in which the knot tightens under load and can be loosened without untying the knot. The knot can be used to secure a rope to a post, pole, or animal but only where the end is in a position that the loop can ...

. The running bowline is strong and secure. It slides easily and can be undone just as simply.

Tying

Tie a

in the end of a line with a small loop, and by appearance one then passes the standing part through the loop to form the noose. However, this method of forming the noose is practicable only for a short piece of line. Alternatively, one can tie the bowline tied directly around the standing part or, having tied the bowline first, one would form a bight in the standing part and pull it through the loop of the bowline.

References

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