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Tying the Double Davy Knot (Interactive Animation)
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Double Davy Knot TyingPass the tippet through the eye, around the running end, and back through the loop to make a half hitch. Continue around and through the loop a second time, then around the running end, and through the loop a third time. Tighten carefully so that the tag end is enclosed by the knot against the eye. Trim the end.
Double Davy Knot Details
Origin: The Double Davy Knot is derived from the original Davy Knot created by Davy Wotton. The objective was a knot which could still be tied quickly and easily but would be more secure in some situations..
Tying it: The animation shows how similar the Double Davy is to the Davy. The only difference is the additional step (Frame 6) where the tag end is passed through the loop a third time.
Options: Although the Animation shows one of the commonest methods used to tie the Double Davy, on Matt's Bucket Blog, Davy himself says: "...Your description is one of the two ways to form the DD. The second way l do it is to form the first or second turn twice in the same direction. So you go over and under and then go around that leg again before the cross over to the reverse...."
Tightening it: Like the Davy, the tag end must lie against the eye under the knot. If the tag end slides away from the knot towards the center of the eye, the knot holds much less well. Also, although some people grip the tag end with their teeth, Davy cautions against it because of the risk of bacterial contamination.
Relative Diameters of Tippet and Eye Wire: When the wire diameter is larger, the Davy Knot is more likely to slip and the Double Davy is preferred.
Advantages: The Double Davy has been tested against other knots. Although Matt found the Non-Slip Mono strongest, in general the Double Davy performs very well and is stronger than other knots including the Davy. Like the original Davy it has a small footprint and can be tied quickly, even with cold fingers.
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.