Taut-line hitch

The taut-line hitch is a modified version of two half-hitches[?]. It is used for tensioning lines where the tension may need to be periodically readjusted. It does not work well with some modern synthetic lines that are excessively slick or which do not knot well, but works excellently with most line.

To tie the taut-line hitch, pass the line from the load, loop it around the anchor, and take the free end and loop it around in a half-hitch; that is, loop it around the standing line and pass it through the loop formed. Then pass it through the loop again in the same direction, so that there are two passes of the line through the loop. Then tie another half-hitch on top of this, going in the same direction; that is, pass the free end around the standing line above the hitch just tied and pass it through the loop formed, then tighten. This is the taut-line hitch. Adjust it by grasping the standing line in one hand just below the taut-line hitch, then pull the line against the load, and grasp the hitch with the other hand and pull it the other direction, away from the anchor and towards the load, to tighten. This knot can be repeatedly adjusted as needed.

It is good for securing loads on vehicles and for securing tent lines.