Prusik knot: Difference between revisions

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{{Infobox knot

| image = File: Prusik.jpg

| other_names = Prusik, ~~prusik~~ hitch

| other_names = Prusik, Prusik hitch

| pros = Fast, clean, just an accessory cord or a sling needed

| cons = Compared to traxion, tiblocs and such it is a bit tedious to get loosen in some cases and it must be moved actively

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}}

Prusik knot (technically a hitch) is a very versatile hitch used in abseiling, pulley systems, ~~prusiking~~ up the ropes. In some of the applications it can be replaced by tibloc and various traxions and similar devices which provides improved comfort of use by unidirectionally moving seamlessly on the rope while providing the same stopping functionality as ~~prusik~~.

'''Prusik knot''' (technically a hitch) is a very versatile hitch used in abseiling, pulley systems, Prusiking up the ropes. In some of the applications it can be replaced by tibloc and various traxions and similar devices which provides improved comfort of use by unidirectionally moving seamlessly on the rope while providing the same stopping functionality as Prusik.

== Tying ==

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|Do it few more times (2)

|File:prusik_step3.png

|Dress the ~~prusik~~ by pulling the rest of the accessory cord (3)

|Dress the Prusik by pulling the rest of the accessory cord (3)

|File:prusik_step4.png

|Test if it blocks (4)

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''this section is not yet inspected thoroughly, statements might be incorrect and/or misleading!''

Based on the cord load limits, 5 mm (5.1 kN) and 6 mm (10 kN) reep cords are generally recommended for tying ~~prusiks~~.<ref>{{cite web | url=https://www.mytendon.com/en/products/accessories/accessory-cords/c-23/ | title=Acessory cords | publisher=LANEX a.s. | author=LANEX a.s. | website=tendon.cz | access-date=16 August 2025}}</ref> General rule of a thumb is that to ensure reliable blocking, ~~prusik~~ cord should have roughly 1/2 of a diameter of the rope on which the ~~prusik~~ is tied on. For a standard climbing rope (~9.7 mm), the slightly-above-recommendation 6 mm cord has the advantage that it is easier to loosen and the loading limit of the cord is substantially higher than in case of the 5 mm cord. However, in some rope-~~prusik~~ combinations, it might not block readily enough. In some cases, 5 mm ~~prusik~~ is hard to loosen under and after load. Both for 5 mm and 6 mm cord, testing in safe environment is highly recommended.

Based on the cord load limits, 5 mm (5.1 kN) and 6 mm (10 kN) reep cords are generally recommended for tying Prusiks.<ref>{{cite web | url=https://www.mytendon.com/en/products/accessories/accessory-cords/c-23/ | title=Acessory cords | publisher=LANEX a.s. | author=LANEX a.s. | website=tendon.cz | access-date=16 August 2025}}</ref> General rule of a thumb is that to ensure reliable blocking, Prusik cord should have roughly 1/2 of a diameter of the rope on which the Prusik is tied on. For a standard climbing rope (~9.7 mm), the slightly-above-recommendation 6 mm cord has the advantage that it is easier to loosen and the loading limit of the cord is substantially higher than in case of the 5 mm cord. However, in some rope-Prusik combinations, it might not block readily enough. In some cases, 5 mm Prusik is hard to loosen under and after load. Both for 5 mm and 6 mm cord, testing in safe environment is highly recommended.

== References ==

@@ Line 3: / Line 3: @@
 {{Infobox knot
 | image = File: Prusik.jpg
-| other_names = Prusik, prusik hitch
+| other_names = Prusik, Prusik hitch
 | pros = Fast, clean, just an accessory cord or a sling needed
 | cons = Compared to traxion, tiblocs and such it is a bit tedious to get loosen in some cases and it must be moved actively
@@ Line 11: / Line 11: @@
 }}
-Prusik knot (technically a hitch) is a very versatile hitch used in abseiling, pulley systems, prusiking up the ropes. In some of the applications it can be replaced by tibloc and various traxions and similar devices which provides improved comfort of use by unidirectionally moving seamlessly on the rope while providing the same stopping functionality as prusik.
+'''Prusik knot''' (technically a hitch) is a very versatile hitch used in abseiling, pulley systems, Prusiking up the ropes. In some of the applications it can be replaced by tibloc and various traxions and similar devices which provides improved comfort of use by unidirectionally moving seamlessly on the rope while providing the same stopping functionality as Prusik.
 == Tying ==
@@ Line 22: / Line 22: @@
 |Do it few more times (2)
 |File:prusik_step3.png
-|Dress the prusik by pulling the rest of the accessory cord (3)
+|Dress the Prusik by pulling the rest of the accessory cord (3)
 |File:prusik_step4.png
 |Test if it blocks (4)
@@ Line 32: / Line 32: @@
 ''this section is not yet inspected thoroughly, statements might be incorrect and/or misleading!''
-Based on the cord load limits, 5 mm (5.1 kN) and 6 mm (10 kN) reep cords are generally recommended for tying prusiks.<ref>{{cite web | url=https://www.mytendon.com/en/products/accessories/accessory-cords/c-23/ | title=Acessory cords | publisher=LANEX a.s. | author=LANEX a.s. | website=tendon.cz | access-date=16 August 2025}}</ref> General rule of a thumb is that to ensure reliable blocking, prusik cord should have roughly 1/2 of a diameter of the rope on which the prusik is tied on. For a standard climbing rope (~9.7 mm), the slightly-above-recommendation 6 mm cord has the advantage that it is easier to loosen and the loading limit of the cord is substantially higher than in case of the 5 mm cord. However, in some rope-prusik combinations, it might not block readily enough. In some cases, 5 mm prusik is hard to loosen under and after load. Both for 5 mm and 6 mm cord, testing in safe environment is highly recommended.
+Based on the cord load limits, 5 mm (5.1 kN) and 6 mm (10 kN) reep cords are generally recommended for tying Prusiks.<ref>{{cite web | url=https://www.mytendon.com/en/products/accessories/accessory-cords/c-23/ | title=Acessory cords | publisher=LANEX a.s. | author=LANEX a.s. | website=tendon.cz | access-date=16 August 2025}}</ref> General rule of a thumb is that to ensure reliable blocking, Prusik cord should have roughly 1/2 of a diameter of the rope on which the Prusik is tied on. For a standard climbing rope (~9.7 mm), the slightly-above-recommendation 6 mm cord has the advantage that it is easier to loosen and the loading limit of the cord is substantially higher than in case of the 5 mm cord. However, in some rope-Prusik combinations, it might not block readily enough. In some cases, 5 mm Prusik is hard to loosen under and after load. Both for 5 mm and 6 mm cord, testing in safe environment is highly recommended.
 == References ==