Pulleys & Mechanical Advantage Archives

English and Reverse Reeve Systems for Highline Rescue

Lance Piatt / Blog, Mainline Systems and Operations, Pulleys & Mechanical Advantage, Two Rope Offsets, Two Tensioned Rope Rescue Systems

Highline Rescue Requires Precision In rope rescue operations, moving a load across horizontal or diagonal spans—whether suspended from high directionals or tensioned lines—demands a system that’s not only stable and redundant, but also dynamically adjustable under load. This is where English Reeve and Reverse Reeve systems shine. Both reeving systems offer unique advantages depending on […]

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The Multi-Purpose Device Revolution

Lance Piatt / Blog, CMC Rescue, Designing Your Processes, Pulleys & Mechanical Advantage, Twin Tension Rope System, Two Tensioned Rope Rescue Systems

Advanced Rope Rescue Systems: The Multi-Purpose Device Revolution The Multi-Purpose Device Revolution is an ever-evolving world within technical rescue; innovation is key to enhancing safety and efficiency. As we explore the intricacies of dual tension dual capacity (DTDC) systems, it’s crucial to highlight the game-changing equipment that makes these advanced techniques possible. At the forefront

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Petzl Twin Release Kit

Lance Piatt / Blog, Industry, Mainline Systems and Operations, Mechanical Advantage, Petzl, Pulleys & Mechanical Advantage

The Petzl TWIN RELEASE KIT is a pre-assembled, ready-to-use 4:1 hauling and lowering system, specifically designed for work access and rescue in industrial environments. This system is ideal for vertical work and allows for easy lowering and hauling of loads, which is particularly useful in confined spaces. It can also assist in tilting and orienting a litter

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Basic mechanical advantage systems enable efficient lifting with simple pulleys. Learn the essentials of the 3:1 Z-rig for safe rescues - How is Weight Redistributed Through a 3:1 Mechanical Advantage System? - Eccentric Progress Capture in Mechanical Advantage Systems

How is Weight Redistributed Mechanical Advantage Systems?

Lance Piatt / Mechanical Advantage, Minimalist Mountain and Climber Rescue, Pulley Systems, Pulleys & Mechanical Advantage

How is Weight Redistributed Through Mechanical Advantage Systems? A 3:1 mechanical advantage system, also known as a Z-rig, is a fundamental tool in technical rope rescue that enables rescuers to lift heavy loads with significantly less effort. But how exactly is the weight redistributed in this system, and what forces are acting on the pulleys,

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Timber High Directionals in Rescue Operations

Lance Piatt / Anchoring, Anchors, Artificial High Directional AHD, Blog, Designing Your Processes, Dynamic Directional, Mainline Systems and Operations, Pulleys & Mechanical Advantage, Two Rope Offsets

Timber High Directionals in Rescue Operations Why Build Timber High Directionals? When rescue teams respond to emergencies in remote or austere environments, they often face unexpected challenges that require improvisation and adaptability. In these scenarios, modern equipment like the Arizona Vortex may not be available or practical to transport. This is where timber structures—such as

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Tight Line Skate Block Systems in Rope Rescue

Lance Piatt / Anchoring, Anchors, Artificial High Directional AHD, Blog, Dynamic Directional, Elevated Anchor Systems, Mainline Systems and Operations, Pulleys & Mechanical Advantage, Skate Blocks

Tight Line Skate Block Systems in Rope Rescue A tight line skate block system is a highly specialized variation of the traditional skate block, providing increased precision, control, and adaptability for advanced technical rescues. These systems are critical in environments requiring elevated tension management and controlled load transitions. I. Introduction A tight line skate block

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Dynamic Directionals in Rope Rescue

Lance Piatt / Anchoring, Anchors, Artificial High Directional AHD, Blog, Dynamic Directional, Elevated Anchor Systems, Mainline Systems and Operations, Portable Anchors, Pulleys & Mechanical Advantage, Twin Tension Rope System

High Directional Systems in Rope Rescue A high directional is a crucial component in rope rescue operations, used to elevate the rope system above the rescue scene. By raising anchor points, high directionals enable safer, more efficient rescue operations across various challenging environments. Definition and Purpose A high directional is a rigged system designed to:

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Span Anchors for Rope Rescue

Lance Piatt / Anchoring, Anchors, Blog, Knots, Bends & Hitches, Portable Anchors, Pulleys & Mechanical Advantage

Key Mistakes in Span Anchors for Rope Rescue Operations When it comes to rope rescue operations, the use of span anchors is a fundamental element of success. Span anchors allow teams to transport loads across obstacles, terrain, or voids efficiently and safely. However, common mistakes can jeopardize both safety and efficiency, turning a well-intentioned setup

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Mastering Mainline Systems

Lance Piatt / Blog, Mainline Systems and Operations, Mechanical Advantage, Online Training Education, Pulleys & Mechanical Advantage, Twin Tension Rope System / 208 Comments

Mastering Mainline Systems Mastering Mainline Systems is about having the ability to effectively raise and lower a mainline system is essential in rescue operations, where safety, efficiency, and control are paramount. At the heart of this capability lies a deep understanding of system design, pre-planning, and mechanical principles. Mastery of these elements ensures not only

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Horizontal Systems Gear

Lance Piatt / Arizona Vortex, Blog, CMC Rescue, General Rigging, Highline Rigging, Mechanical Advantage, Portable Anchors, Pulley Systems, Pulleys & Mechanical Advantage, Rescue Baskets

Taglines Taglines are used in horizontal rope systems to control, stabilize, or maneuver a load laterally across a gap or down a slope. They are often simple tensioned lines attached to a load, providing directional control. Purpose: Taglines ensure the load moves along a predetermined path, reducing the chance of unwanted swinging or collisions with

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