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Turn (knot)
A turn is one round of rope on a pin or cleat, or one round of a coil.〔''The Ashley Book of Knots'', p. 604.〕 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.〔''The Ashley Book of Knots'', text to image 32.〕 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==
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.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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