{{Short description|Type of knot}} thumb|A: An open loop.<ref>''The Ashley Book of Knots'', image 31.</ref><br>B: A closed loop<ref>''The Ashley Book of Knots'', image 32.</ref><br>C: Turn or single turn<ref>''The Ashley Book of Knots'', image 40.</ref><br>D: Round turn<ref>''The Ashley Book of Knots'', image 41.</ref><br>E: Two round turns<ref>''The Ashley Book of Knots'', image 42.</ref>
A '''turn''' is one round of rope on a pin or cleat, or one round of a coil.<ref>''The Ashley Book of Knots'', p. 604.</ref> Turns can be made around various objects, through rings, or around the standing part of the rope itself or another rope. A '''turn''' also denotes a component of a knot.
When the legs of a loop are brought together and crossed, the rope has taken a turn.<ref>''The Ashley Book of Knots'', text to image 32.</ref> One distinguishes between '''single turn''', '''round turn''', and '''two round turns''' depending on the number of revolutions around an object. The benefit of round turns is best understood from the capstan equation.
==Riding turn== [[Image:Strangle-knot-ABOK-1239.jpg|thumb|left|The riding turn of this strangle knot passes from the upper left to lower right]] A '''riding turn''' is a section of rope that passes on top of another section of rope, often parallel or at only a slight angle to the section below. Examples of riding turns can be seen in both the constrictor knot and the strangle knot. The second course of wrappings in some seizing knots can be referred to as riding turns. The formation of an unintentional riding turn on a sailing winch can cause it to jam.
==Single hitch== {{Infobox knot | name=Single hitch | image=Halbschlag.jpg | names= | type= hitch | strength= | origin= Ancient | related= half hitch | releasing= Non-jamming | uses= Used effectively to form many other knots. | caveat= Spills, unreliable as a hitch used on its own. | abok_number= #49 | instructions= }}
A '''single hitch''' is a type of knot. This hitch is actually a turn tied around an object where the end is secured by its own standing part.<ref>Clifford W. Ashley, ''The Ashley Book of Knots'' (New York: Doubleday, 1944), fig. 49</ref>
==See also== * List of knots
== References == {{Reflist}}
{{Knots}}
Category:Knot components