Pulleys & Mechanical Advantage Archives | Page 3 of 8

Dynamic Directional Offset System Using an A-Frame and Natural High Directional

By Lance Piatt / Blog, Dynamic Directional, Elevated Anchor Systems, General Rigging, Highline Rigging, Horizontal Rigging, Offset Track Line, Pulley Systems, Pulleys & Mechanical Advantage, Twin Tension Rope System, Twin Tension Rope System Clutch, Two (Twin) Tension Rope Systems, Two Rope Offsets, Two Tensioned Rope Rescue Systems / 10 Comments

Over time, we’ve found this style of deflection offset to be really fun. They have their limits, as with any system, but strength (when properly rigged and run) comes easy and we appreciate the versatility it offers. Large gaps or spans are typically the MO for dynamic directionals. We used a standard A-Frame configuration on …

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Staggering Your Rigging Anchors Increases Efficiency But At What Cost?

By Lance Piatt / Anchors, Blog, General Rigging, Horizontal Rigging, Pulley Systems, Pulleys & Mechanical Advantage / 6 Comments

Staggering rigging anchors is a perfect way to spread the mechanical advantage system over a broad area, while at the same time, using the area very efficiently. The goal is to get as much “throw” as possible and to limit resets. There are numerous ways to do this and these are only two of the …

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WHAT YOU NEED TO KNOW ABOUT THE PETZL SPIN PULLEYS

By Lance Piatt / Blog, Equipment, Petzl, Pulley Systems, Pulleys & Mechanical Advantage, RRG Gear Review / 119 Comments

WHAT YOU NEED TO KNOW ABOUT THE PETZL SPIN PULLEYS For rescue teams all over the world, having the most efficient equipment possible for whatever situation they may face, is an absolute priority. Released in 2020, the Petzl MAESTRO descender with integrated progress-capture pulley delivers exactly that. In addition, the family of SPIN pulleys rounds …

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MORE IS POSSIBLE ~ Introducing the 13 mm CMC CLUTCH™ BY HARKEN INDUSTRIAL™

By Lance Piatt / Blog, CMC Clutch by Harken Industrial, CMC Rescue, Pulley Systems, Pulleys & Mechanical Advantage, RRG Gear Review / 197 Comments

CMC CLUTCH by Harken Industrial is the latest evolution in rescue and rope access hardware. The CLUTCH is patented and made in the USA by CMC and Harken Industrial in a partnership that combines over 90 years of experience in rescue and rope management. Suited to a multitude of rigging operations, the CLUTCH moves seamlessly …

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Recommended Rope Systems ~ Two Tension Rope System (TTRS) Raise and Lower

By Lance Piatt / Blog, Petzl, Principles of Learning, Pulley Systems, Pulleys & Mechanical Advantage, RRG Gear Review / 43 Comments

Recommended Rope Systems ~ Two Tension Rope System (TTRS) Raise and Lower Two-Tensioned Rope System – Raise A Two-Tensioned Rope System shares the load between two ropes, both under tension. Each system is capable of functioning as both mainline or back-up to the other line. System System Benefits Maestro • load is distributed between two …

Ascenders and Clamps Technical Tips: How to calculate mechanical advantage

By Lance Piatt / Blog, Petzl, Principles of Learning, Pulley Systems, Pulleys & Mechanical Advantage / 10 Comments

©Petzl Technical Information ©Petzl How to calculate mechanical advantage A mechanical advantage haul system reduces the effort required to raise a load. The mechanical advantage obtained is based on the pulley effect. 1. The pulley effect If we consider a load suspended on a rope, the rope passing through a pulley above the user, with …

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How To Calculate Mechanical Advantage with Petzl Gear

By Lance Piatt / Blog, Mainline Systems and Operations, Mechanical Advantage, Petzl, Pulley Systems, Pulleys & Mechanical Advantage / 38 Comments

A mechanical advantage haul system reduces the effort required to raise a load. The mechanical advantage obtained is based on the pulley effect. 1. The Pulley Effect If we consider a load suspended on a rope, the rope passing through a pulley above the user, with the user’s hand holding the rope on the …

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Two Rope Twin Tension Mini Offset… Backcountry Meets Fire Service

By Lance Piatt / Artificial High Directional AHD, Blog, Portable Anchors, Pulleys & Mechanical Advantage, Two (Twin) Tension Rope Systems, Two Rope Offsets, Two Tensioned Rope Rescue Systems / 10 Comments

~This is a quick snippet of something we filmed when we first opened up RLA’s studio lab ~ Two Rope Twin Tension Mini Offset… Backcountry Meets Fire Service So backcountry meets fire service… sounds like a battle of some sort. So while this “match up” is really neither epic nor epoch, this contest does …

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Staggered Anchors: Progression from 3:1 to 9:1 Simple Mechanical Advantage

By Lance Piatt / Anchoring, Personal Competencies, Pulley Systems, Pulleys & Mechanical Advantage / 219 Comments

Excerpt from Knots & Pulleys in Rope Rigging Systems Vol. 1 Segment 7 Let’s continue with our discussion on pulley systems. We can look at what we have right here. You can see the Vortex and we have a sandbag as a weight right now. What we have here in the way of a …

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The Gear Used In Artificial Highlines and Two Tension Rope Systems

By Lance Piatt / Blog, Mainline Systems and Operations, Pulleys & Mechanical Advantage, Two (Twin) Tension Rope Systems / 9 Comments

Ultimate – the best achievable or imaginable of its kind. Can we have The Ultimate Gear List for anything? Probably not, but we can put some thought into what that might look like. Before we get to the list, let us outline where this gear cache came from. In building this course with Jason Ilowite …

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