Vt prusik vs hollow block The easiest solution is to just buy a hollow block or prusik loop that was designed for friction hitches. 50 respectively. That led to Bluewater vt-prusik cordage and getting a custom length. Hollow construction means it relies on flattening against the line, rather than biting like a thin accessory cord Prusik. Made with aramid fiber and sewn with Sterling’s proprietary sewing pattern, this ultra-strong cord is designed to provide excellent griping power on climbing ropes with diameters of 7mm or larger. It's very easy to release, comparing it to the autoblock is like comparing the autoblock to the prusik in ease of release. 88. If you’re double strand rappelling, two wraps is an adequate backup and will make your actual rappell more smooth, less choppy. Tie friction hitches with more bite and heat resistance compared to nylon climbing cord. <superpendanto> "prussic" is "Prusik" misspelled. Elsewhere in the book, he calls the VT hitch "one of the most useful friction hitches in your arsenal Jun 1, 2016 · The Sterling HollowBlock is a handy tool for climbers and guides. Oct 25, 2022 · The beal jammy, the blue water vt prusik, or similar aramid cord with kernmantle construction is a much more versatile tool. The VT Prusik can be utilised to tie a range of friction hitches, including: Valdotain Tresse (VT), Asymmetric Prusik (Schwabisch/Distal), French Prusik, and Symmetric Prusik. The testing was limited to two aramid fiber friction hitch make/models: the Bluewater VT Prusik and the Sterling RIT 900 cord (aka Hollow Block). 2. Description. It is rated to 19kN. If I'm climbing with a different rope and/or rappel device, I'll do more/fewer wraps or switch knots to get the right level of The Prusik knot and Klemheist knot for a rappel backup are both great choices, but there are some key differences to consider. 5 mm in diameter Oct 14, 2020 · I tend to use the Prusik (what you're calling the classic Prusik) but that's because I've determined that two wraps with that knot is the proper level of friction for the rope and rappel device I climb on the most. For example, if you were traversing using an old, fixed rope rigged horizontally, you could attach a prusik to it from your harness. A great upgrade to a simple, but necessary piece of gear. com for usage and workshop information. This 7mm prusik works best on ropes 8mm to 9. At the time, the prusik was primarily used as an aid climbing tool to ascend fixed ropes (unless in emergency scenarios). Jun 17, 2022 · GM CLIMBING 8mm SEWN-EYE VT Prusik Hitch Cord, 30" and 45" in length, yielding 29kN / 6500Lbs Basket MBS, and made of 100% high tenacity Polyester with CNC machine sewn eyes at ends. Ideally have a carabiner hanging about chest level for the hitches and then the friction hitches with all your supplies on a table right next to you. - If using prusiks in conditions where they might fail (e. 3. It's gripping ability comes from the unique hollow-braid construction, for use as a prusik or Klemheist knot on ropes 7 mm or larger. I try to single line rap with a biner block most of the time (which works great) but def have double line rapped with both the hollow block and vt prussik which also functions fantastically and has become a new favorite. Aug 11, 2017 · The key to selecting a good prusik cord is to find something soft and supple. Lastly, three wraps on a prusik (aka the “improved prusik”) is best practice on thinner ropes, or if you’re traversing an area on a single strand fixed line. This thread/stitch combination May 15, 2023 · About this item . Overall length: 83 cm (33 inch) Jul 29, 2021 · This is great for a knot pass, but that's a pretty specialized use case, and for general purposes it hasn't replaced the lower-profile hollow-block my harness. If you use 9 or 9. Follow topic: Email Notify on site Post Reply. € 34, Sep 6, 2017 · I typically carry one each of 6 mm and 7 mm prusik loops/VT prusik as a standard. Among the different backup knots, the Prusik stands out for being easy to tie yet effective. The purpose was to critically examine the capabilities and limitations of the VT Prusik as a device suitable for managing fall arrest on a rope rescue system while lowering or raising a 200kg mass. Mar 1, 2022 · When the 7mm VT came out I instantly liked it better than the 8mm and I think that is because I mostly use 8mm ropes. Experience in rigging and rappelling is required. Jun 27, 2019 · Personally, I love the Sterling Hollow Block in the 13. g; prusiking up a wet or icy rope), it’s better to use two different types of friction hitch (and a full strength back-up, of course). I use a French prusik because it does not get overly tight. Tying them to your rope and attaching them to your harness will catch you in the event that you fall while rappelling. I carry one 7mm VT on my harness and an extra in my pack. I did not test a standard prusik hitch as I wasn't sure you should use that hitch as an autoblock. 5 days ago · A prusik in rappelling is a motion-resistant knot designed to tighten up when weighted. The Sterling Hollow Block is just that and a bit more. 5mm. The VT prusik lets you more easily fine tune the amount of friction than a loop style autoblock. The document has moved here. 8mm x 13. MBS: 13 KN. Feb 7, 2019 · It's very common in canyoneering, usually done with what is called the "VT prusik", a hollow aramid sling with sewn eyes on either end. Note, it’s best to do this with a rappel extension. We did a bunch Moved Permanently. Apr 29, 2023 · Origin of the Prusik. 8mm Endless Prusik Loop, 15" length, 25kN /5600Lbs, made of 100% Technora for increased durability and performance, 16-strands hollow braid offering power grip to main ropes, used to tie friction hitches, including prusik knot, autoblock, Klemheist knot in mountaineering, climbing, canyoneering, caving, rope rescue, tree care by arborist, rigging aerial hammock Sep 21, 2020 · Back to oplux or rescue tech, that is 8mm rope. I will probably play with an actual VT prusik above my belay device, but I’m comfortable as is, so I’m not doing that soon. The hollowblock is intended to be used only as a 3rd hand, not a primary attachment, and there have been reports of it failing way below MBS, without significant visual wear, when (mis)used as a prusik for ascending ropes or following a fixed line. The VT is a versatile open-end prusik that can be used to tie: Symmetric Prusik Asymmetric Prusik (Schwabisch/Distal) Valdotain Tresse French Prusik more For personal use on ropes 8 Sep 17, 2020 · I feel like that is a good explanation. 50 and $19. Key Benefits • 100% Technora Construction • Significant increase in durability and performance Moved Permanently. . VT Prusik Swen Eye-to-Eye Pre-Sewn Heat Resistant Friction Hitch Cord Kevlar Redesigned with a stronger aramid fiber, the Sterling 6. This has a few features which differentiate it from other Prusik loops: 1. 50+ bought in past Mar 7, 2025 · The 7mm VT Prusik was designed for use on smaller diameter ropes. 8 mm HollowBlock2 is made of 100% Technora® fiber for increased abrasion resistance and improved durability. GM CLIMBING 6. 0 mm cord. 5-inch length. BlueWater Ropes 7mm VT Prusik Khaki SKU: 7568606. Tech Specs. The best way to gain specific training in uses of the VT Prusik is by attending a workshop. The most c Jun 16, 2019 · Before you drop 20 bucks on a hollowblock, consider the advantages of a tech-cord prussic: Fast, precision adjustability (when tied with an overhand with half-hitch backup): GM CLIMBING 8mm (5/16in) VT Prusik Swen Eye-to-Eye Pre-Sewn Heat Resistant Friction Hitch Cord Kevlar & Polyester 30inch. 4. Shoelace klemheist is a great MacGyver, adequate imo as it never sees bodyweight load and even if broken would ride up and clog up the atc. 0 – 7. The VT performs well when used for ascending, self-belay while rappelling, as a traveling rope grab, or in conjunction with a Prusik minding pulley in haul systems. Aug 17, 2019 · Meaning, a person could use a prusik or french prusik hitch for their autoblock? If that is the case in my testing the Hollowblock did not grab the Oplux at all using a french prusik no matter how many or few wraps I used. There are many ways to do this, but this one we have found is redundant an Dec 13, 2017 · The VT Prusik seems to be the eye-loop equivalent of the hollow block, made with aramid sheath to prevent melting. The VT performs well when used for ascending, self-belay while rappelling, as a traveling rope grab or in conjunction with a Prusik minding pulley in haul systems. The VT performs well when used for ascending, self-belay while rappelling, as a traveling rope grab or in conjunction with a prusik minding pulley in haul systems. Cute chicks risking their for a wine sunset despite you being an irresponsible rope-gun is just a class act on everyone's part. Also do note that there are some commercially available friction hitch loops or auto blocks like the Sterling Hollow Block or the BlueWater VT Prusik which are anecdotally known to perform better than the nylon cordage based prusik loops. Jan 20, 2024 · was looking at the blue water vt prusik cord I have 9 mm canyon elite and they have 7 mm and 8 mm and they both say good for 9mm so which one will work better? I have some hollow bloch loops but really like to get some eye to eyes so I can tie some different prusiks and plus what chord works well if I decide to make my own eye to eyes? Initial results for the VT Prusik were favorable and thus additional testing was warranted. And, while James Bond might use shoelace, Traddad uses 6mm cord or a nylon sling for his friction knots. The VT Prusik can be used in so many ways that it is impossible to show them all. A prusik has tons of different uses!! here is how 3 different versions of the same thing work. 5. Sep 28, 2012 · Anyone out ther have information about a possible death in the Subway? This research was conducted over the course of multiple testing sessions spread out over approximately 18 months. Item 4 of 10. 8 out of 5 stars. Feb 15, 2023 · What is Prusik in Climbing? A prusik hitch is another friction hitch commonly used in rescue scenarios and as a third hand or backup in rappelling. The smaller the eye when you squeeze a bite the better. Overall length: 33″ For use on personal ropes 8 mm – 9. Hollow Block works "OK" as a third hand for clients in commercial-guided groups, but otherwise not recommended for use in canyoneering. 50+ bought in past Posted by u/[Deleted Account] - 13 votes and 14 comments The BlueWater VT performs well when used for ascending, self-belay while rappelling, as a traveling rope grab, or in conjunction with a prusik minding pulley in haul systems. Available in two sizes, the 7mm version is ideal for use with the smaller diameter ropes used by most canyoners, while the 8mm version is ideal for thicker ropes or Feb 15, 2023 · What is Prusik in Climbing? A prusik hitch is another friction hitch commonly used in rescue scenarios and as a third hand or backup in rappelling. I do not use mine (VT Prusik) for anything but an autoblock while rappelling. I was looking for the best, aka highest breaking strength friction hitch cordage to work with that. Visit totemrigging. A computerized large gauge sewing machine is used to bar tack a devilishly strong stitch with custom thread. This specialty design features a tough, heat resistant Technora aramid sheath over durable nylon core strands. Sterling hollow block. The tensile strength of accessory cord varies significantly depending on the manufacturer and diameter but in general falls in the 7 – 10 kN range for 6. He's gotta be kidding about love for the hollow block The VT performs well when used for ascending, self-belay while rappelling, as a traveling rope grab or in conjunction with a Prusik minding pulley in haul systems. 5in is designed to function as a pre-sewn prusik or climb heist. It functions as a secondary safety measure and rappelling back up. Sterling … The VT performs well when used for ascending, self-belay while rappelling, as a traveling rope grab or in conjunction with a Prusik minding pulley in haul systems. 8mm Endless Prusik Loop 15-inch 100% Technora 25kN Heat Resistant Friction Hitch Cord Hollow Braid for Rappel Abseil Backup, Adjustable Anchor Set-up, Rescue Rigging Hammocks Moved Permanently. If you have any questions about possible uses or anything else Apr 26, 2019 · At 14kN, the Hollow Block is plenty strong enough for its application, but keep in mind that regular climbing slings are tested to 22 kN, so it is not interchangeable with slings. Always practice vertical rope techniques under the supervision of a qualified instructor, and ideally in a progression: from flat ground, to staircase, to vertical close to the ground before you ever try them in a real climbing situation. But these aren’t The VT Prusik is a very versatile open-end Pruisk. For example, Nylon has a much higher melting point (above 400F) but one should take special precaution to which type of friction hitch is used as it is also a slicker material. If you do them wrong, you could die. Overall length: 33″ Don’t use a sling for anything except a prusik after using it once as a prusik. 5 out of 5 stars. Unlike nylon cord, the Hollow Block is made with Aramid fibers and a hollow core, hence the name, allowing the fibers to bite on a rope 7mm or larger using a Prusik or Klemheist. Built from Sterling’s RIT 900 cord, the Hollow Block 6. 2 of 3 Sterling Rope 6. The Good The Bite. If the rope were to break (either to the left or the right of you), the prusik would save you. Further testing was conducted in 2017 and 2019. The prusik friction hitch was first displayed and popularized in 1931 in an Austrian mountaineering manual. The VT Prusik is a significantly better product, for only slightly more money. The VT is a versatile open-end prusik that can be used to tie: Symmetric Prusik; Asymmetric Prusik (Schwabisch/Distal) Valdotain Tresse; French Prusik; Specifications GM CLIMBING 8mm (5/16in) VT Prusik Swen Eye-to-Eye Pre-Sewn Heat Resistant Friction Hitch Cord Kevlar & Polyester 30inch. Used to tie: Symmetric Prusik, Asymmetric Prusik (Schwabisch/Distal), Valdotain Tresse, French Prusik. If you’re not familiar, the HollowBlock is a unique hollow braid sewn-prusik cord made from aramid fibers and used for backing up rappels and lowers and performing load transfers. Plus, it has a high melting point, and as you may remember from your high school science class, a byproduct of friction is heat, and heating nylon can cause glazing or even melting of the cord. Available in 48cm and 34cm, MSRP $18. Aug 16, 2019 · You can use it as a third hand / French prusik / autoblock backup beneath your rappel device anytime you’re doing a lower or rappel (similar to a Sterling Hollow Block). and are absolute and unwavering in their "knowledge" gained from 2 years of climbing in the gym. Mar 27, 2022 · Note - This post discusses techniques and methods used in vertical rope work. Prusik or Prusik cord is a shorter loop of cord specifically used for friction knots. Overall length: 33″ You will need access to both ends of a climbing rope for the knots, 2 meters of webbing, a Hollow Block, VT Prusik for the friction hitches. Nov 27, 2017 · Use an autoblock instead of a prusik if you feel that a prusik is catching too much. Use to tie: Symmetric Prusik, Asymmetric Prusik (Schwabisch/Distal), Valdotain Tresse, French Prusik. 99. Sterling Hollow Block The 6. Dec 2, 2019 · This is clearly better than any of the competing products. 386 (diagram 310) of AK's Down. Key Benefits • 100% Technora Construction May 12, 2021 · You can use other material just be sure and know the pros/cons. 292. always great to have back ups just in case any of them fail which does happen so check it before/ after each canyon The rule supposedly is that you want a friction hitch to be 3mm smaller than the diameter of rope you are trying to grab and to use 3 wraps. 5mm ropes then the 8mm VT may be your choice but I know I can use a 7mm VT without fail on any diameter 8mm to 9. . 8mm Hollow Block Loop. The VT hitch knot-pass technique is described on p. The prusik is named after its inventor, an Austrian mountaineer named Karl Prusik. Sep 26, 2020 · What is the best Rope material for making a prusik? Can we use Dyneema?In this episode I go over some rope materials and their properties to heat. 8 mm HollowBlock 2 loop is a friction hitch and autoblock that can be used as a prusik or Klemheist knot on ropes 7 mm or larger. It’s gripping ability comes from the unique hollow-braid construction, for use as a prusik or Klemheist knot on ropes 7 mm or larger. The core in this kernmantle design keeps the VT from flattening and binding up. The prusik is a little bit more finicky to tie than the autoblock but is known to be very safe and strong. 293. For technical rock climbing, it’s the ideal choice because it’s light and compact. It's slightly thicker (making it less likely to jam in the pulley) and the eyes allow you to use an asymmetric Prusik. Symmetric Prusik Asymmetric Prusik (Schwabisch/Distal) Valdotain Tresse French Prusik. My prusik has never locked up, and I hang on my prusik backup _often_ while developing new routes. The prusik loop or prusik rapp Jun 6, 2017 · Dakota, of Live Rogue, walks you through one way to rappel with a personal backup. Aramid fibers make it immune to melting. The test series included both slow pull examinations as well as drop testing. Click on the link here to see the revised user instructions that come with the HollowBlock. 99 $ 24. $24. Dec 19, 2015 · A prusik works in either direction, which is sometimes important. If it ever did lock up, I would just raise one leg, wrap the free lower end of the rope around my foot two or three times, and stand up on that foot -- thus take The 6. Manufactured by: BlueWater Ropes 209 Lovvorn Road Carrollton The VT Prusik is a versatile open-end Prusik. wxwcqouugkxyaxghpkzffvdkvlrpcbzwkwlxyhxnyqtaaxiealguylzkdodhrzzvrwyzlquareeac