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Rolling hitch: Difference between revisions
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== Naming == | == Naming == | ||
[[Image:RollingAndMagnusHitchVariations.jpg|thumb|Names and reference numbers from | [[Image:RollingAndMagnusHitchVariations.jpg|thumb|Names and reference numbers from ABOK, left to right: "Rolling Hitch(1)" (#1734), "Rolling Hitch(2)" (#1735), "Magnus Hitch" (#1736)]] | ||
In the late 18th Century the knot now known as the Rolling hitch was called the Magnus or Magner's hitch, and the name Rolling Hitch referred to [[Round turn and two half-hitches|Two Round Turns and Two Half Hitches]]. In 1841 [[Richard Henry Dana, Jr.]] utilized the present-day names in his work ''The Seaman's Friend'' and subsequent authors have continued to use this terminology.<ref name="ashley292"/><ref name="seamans">Richard Henry Dana, Jr., ''The Seaman's Friend: A Treatise on Practical Seamanship, 14th Edition'' (Boston: Thomas Groom & Co., 1879; Dover Republication 1997), 49.</ref> | In the late 18th Century the knot now known as the Rolling hitch was called the Magnus or Magner's hitch, and the name Rolling Hitch referred to [[Round turn and two half-hitches|Two Round Turns and Two Half Hitches]]. In 1841 [[Richard Henry Dana, Jr.]] utilized the present-day names in his work ''The Seaman's Friend'' and subsequent authors have continued to use this terminology.<ref name="ashley292"/><ref name="seamans">Richard Henry Dana, Jr., ''The Seaman's Friend: A Treatise on Practical Seamanship, 14th Edition'' (Boston: Thomas Groom & Co., 1879; Dover Republication 1997), 49.</ref> | ||
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Although some sources fail to differentiate by using a separate name, when a Rolling hitch or Magnus hitch is tied around the standing part of the rope to form an adjustable loop it is often referred to as a [[Taut-line hitch]] or one of [[Taut-line hitch#Naming|several other names]]. | Although some sources fail to differentiate by using a separate name, when a Rolling hitch or Magnus hitch is tied around the standing part of the rope to form an adjustable loop it is often referred to as a [[Taut-line hitch]] or one of [[Taut-line hitch#Naming|several other names]]. | ||
==Tying== | == Tying == | ||
===Rolling Hitch(1) #1734=== | === Rolling Hitch(1) #1734 === | ||
This version is preferred when '''attaching a rope to pole or rod.'''<ref name="ashley298"/><ref name="trower">Nola Trower, ''Helmsman Guides: Knots and Ropework'' (Wiltshire: Helmsman Books, 1995), 31-32.</ref> It is effectively a [[clove hitch]] with an extra initial turn. | This version is preferred when '''attaching a rope to pole or rod.'''<ref name="ashley298"/><ref name="trower">Nola Trower, ''Helmsman Guides: Knots and Ropework'' (Wiltshire: Helmsman Books, 1995), 31-32.</ref> It is effectively a [[clove hitch]] with an extra initial turn. | ||
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# Complete with a half hitch, moving around the object in the same direction as the first turns, as for a clove hitch. | # Complete with a half hitch, moving around the object in the same direction as the first turns, as for a clove hitch. | ||
# Dress by snugging the hitch around the object before applying load. | # Dress by snugging the hitch around the object before applying load. | ||
===Rolling Hitch(2) #1735=== | === Rolling Hitch(2) #1735 === | ||
This version is preferred when '''attaching rope to another rope.'''<ref name="ashley298"/><ref name="trower"/> The first two turns create an [[Awning hitch]] - a temporary hitch used by riggers when adjusting tent lines.<ref name="ashley304">Ashley, 304.</ref> | This version is preferred when '''attaching rope to another rope.'''<ref name="ashley298"/><ref name="trower"/> The first two turns create an [[Awning hitch]] - a temporary hitch used by riggers when adjusting tent lines.<ref name="ashley304">Ashley, 304.</ref> | ||
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# Dress by snugging the hitch around the object before applying load. | # Dress by snugging the hitch around the object before applying load. | ||
===Magnus Hitch #1736=== | === Magnus Hitch #1736 === | ||
This is tied exactly as #1734, but with the final hitch in the opposite direction. It can be more tricky to snug-up, since both lines emerge from the same side of the hitch, but it has less tendency to twist under load. | This is tied exactly as #1734, but with the final hitch in the opposite direction. It can be more tricky to snug-up, since both lines emerge from the same side of the hitch, but it has less tendency to twist under load. | ||
[[Image:MagnusHitch-ABOK-1736.jpg|left|550px]] <br style="clear:left;" /> | [[Image:MagnusHitch-ABOK-1736.jpg|left|550px]] <br style="clear:left;" /> | ||
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# Dress by snugging the hitch around the object before applying load. | # Dress by snugging the hitch around the object before applying load. | ||
==Security== | == Security == | ||
The load should always be applied from the side with the two turns. Ensure the hitch is very snug before applying any strain, else it will not tighten further under load. When hitching to another rope, Ashley<ref name="ashley298"/> and other sources<ref name="grogroll"/><ref name="nautguide">Brion Toss, ''Chapman's Nautical Guides: Knots'' (New York: Hearst Marine Books, 1990), 30-32.</ref> suggest #1735 is more secure. Ashley also states that #1736 has less tendency to twist.<ref name="ashley304"/> | The load should always be applied from the side with the two turns. Ensure the hitch is very snug before applying any strain, else it will not tighten further under load. When hitching to another rope, Ashley<ref name="ashley298"/> and other sources<ref name="grogroll"/><ref name="nautguide">Brion Toss, ''Chapman's Nautical Guides: Knots'' (New York: Hearst Marine Books, 1990), 30-32.</ref> suggest #1735 is more secure. Ashley also states that #1736 has less tendency to twist.<ref name="ashley304"/> | ||
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Though effective for moderate loads, the Rolling hitch cannot be depended on to hold fast under all conditions. Using stiff and slippery modern fiber ropes, the Rolling hitch may be difficult to make hold at all. Friction hitches with additional wraps and more complex structure, such as the [[Icicle hitch]], may provide more security. | Though effective for moderate loads, the Rolling hitch cannot be depended on to hold fast under all conditions. Using stiff and slippery modern fiber ropes, the Rolling hitch may be difficult to make hold at all. Friction hitches with additional wraps and more complex structure, such as the [[Icicle hitch]], may provide more security. | ||
==See also== | == See also == | ||
*[[Taut-line hitch]]: Closely related adjustable hitch | *[[Taut-line hitch]]: Closely related adjustable hitch | ||
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*[[List of hitch knots]] | *[[List of hitch knots]] | ||
==References== | == References == | ||
{{reflist}} | {{reflist}} | ||
==External Links== | == External Links == | ||
*[http://www.animatedknots.com/rollinghitchboating/|Animated Knots by Grog. ''Rolling Hitch''] | *[http://www.animatedknots.com/rollinghitchboating/|Animated Knots by Grog. ''Rolling Hitch''] | ||
