The triple fisherman's knot is a bend knot, used to join two ends of rope together. It is an extension of the double fisherman's knot and is recommended for tying slippery, stiff ultra high molecular weight polyethylene (UHMWPE) and aramid cored ropes.
Tying the triple fisherman's knot is nearly identical to the double fisherman's, except for a third wrap before passing the end through each half of the knot.
Testing has shown that a failure mode exists at very high loads with the double fisherman's knot in ropes using Spectra and Technora cores. The sheath of the rope separates at the knot and the high lubricity core slips through the double fisherman's knot. Although the increase in ultimate strength is small, the triple fisherman's knot does not exhibit this behavior. This has led to the recommendation to use the triple fisherman's knot in to avoid this particular failure mechanism.
The triple fisherman's knot should not be confused with the "triple-T fisherman's knot", which is more akin to a one-sided overhand bend and has significantly different properties than the triple fisherman's knot.
Read more about Triple Fisherman's Knot: See Also
Famous quotes containing the words triple, fisherman and/or knot:
“And we fairies, that do run
By the triple Hecate’s team
From the presence of the sun,
Following darkness like a dream,
Now are frolic. Not a mouse
Shall disturb this hallowed house.”
—William Shakespeare (1564–1616)
“The natural historian is not a fisherman who prays for cloudy days and good luck merely; but as fishing has been styled “a contemplative man’s recreation,” introducing him profitably to woods and water, so the fruit of the naturalist’s observations is not in new genera or species, but in new contemplations still, and science is only a more contemplative man’s recreation.”
—Henry David Thoreau (1817–1862)
“Come Sleep! Oh Sleep, the certain knot of peace,
The baiting-place of wit, the balm of woe,
The poor man’s wealth, the prisoner’s release,
Th’indifferent judge between the high and low.”
—Sir Philip Sidney (1554–1586)