cmc clutch Archives

Precision and Protocol in Leadership for Confined Space Rescue Operations

Lance Piatt / Anchoring, Anchors, Arizona Vortex, Blog, Confined Space Rescue, Technical Learning, TerrAdaptor

In the discipline of technical rescue, the anchor system remains the defining constant—the mechanical and moral foundation of every operation. As Steve Crandall asserts, “Without a solid anchor, properly rigged, the system is bound for failure.”In Confined Space Rescue (CSR), this principle takes on a leadership dimension. Decision-makers are forced to manage high-risk, low-frequency events […]

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Twin Tension Rope Systems (TTRS) Mastery for Rescue Safety

Lance Piatt / Blog, Mainline Systems and Operations, Pulleys & Mechanical Advantage, Twin Tension Rope System Clutch, Two (Twin) Tension Rope Systems, Two Tensioned Rope Rescue Systems

In modern technical rescue, moving beyond traditional main-and-belay configurations is essential to achieving superior safety margins and operational efficiency. The shift is towards Dual Mainline Rope Systems, also known as Twin Tension Rope Systems (TTRS). These systems fundamentally change the dynamics of load control by actively engaging both ropes to share the load equally, thus

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transitioning to two-tensioned rescue systems

TTRS Anchor Systems with Artificial High Directionals for Two Person Loads

Lance Piatt / Blog, Two (Twin) Tension Rope Systems, Two Rope Offsets

Technical rope rescue demands anchor systems that are strong, efficient, and designed for redundancy. Building TTRS anchor systems with Artificial High Directionals (AHDs) is one of the most effective ways to achieve these goals, especially when managing a two-person load such as a patient and attendant in a litter. By combining the principles of sound

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two tension twin tension lower single operator back tension safety

CMC Clutch Twin Tension Two Tension Lower

Lance Piatt / Belaying, Blog, CMC Clutch by Harken Industrial, Twin Tension Rope System Clutch

The CMC Clutch Twin Tension Two Tension Lower has become a defining standard in modern rope rescue systems. By integrating the Clutch into a Twin Tension Rope System (TTRS), rescuers can achieve smoother control, balanced load distribution, and built-in redundancy. Whether lowering or raising, the Clutch ensures safe transitions, adaptability across rescue environments, and confidence

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Rappelling with the CLUTCH Device for Technical Rescue

Lance Piatt / Blog, Rappel Systems

Rappelling with the CLUTCH Device for Technical Rescue The CLUTCH, co-engineered by CMC and Harken Industrial, has rapidly become a trusted standard in rope rescue and tactical descent systems. Designed for precise control and operational versatility, the CLUTCH serves as a multi-role mechanical device capable of rappelling, belaying, lowering, and hauling—all in one compact form.

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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

Eccentric Progress Capture in Mechanical Advantage Systems

Lance Piatt / Blog, Mainline Systems and Operations, Mechanical Advantage

Eccentric Progress Capture in Mechanical Advantage Systems Eccentric Progress Capture in Mechanical Advantage Systems in rope rescue systems – most mechanical advantage setups are designed to pull or contract—that is, to haul loads upward or horizontally. But not all scenarios are about lifting. Some require controlled lowering under load while maintaining tension and control. This

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How to Set Up an A-Frame - Mechanical Ascenders for Rope Rescue - Setting Up an A-Frame for Rope Rescue

Mechanical Ascenders for Rope Rescue Systems

Lance Piatt / Ascend - Descend, Ascending and Descending Systems, Blog, Designing Your Processes, FAQ-Frequently Asked Questions, Knots, Bends & Hitches, Prusik Strength and Use

Mechanical Ascenders for Rope Rescue Systems Mechanical ascenders are essential tools in rope rescue systems, providing climbers and rescuers with efficiency, reliability, and safety. These devices are designed to grip ropes securely while allowing upward movement, making them invaluable in hauling systems, vertical ascents, and progress capture setups. What Are Mechanical Ascenders? Mechanical ascenders are

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CMC Clutch Rescue Gear Versatility and Performance

Lance Piatt / Blog, CMC Clutch by Harken Industrial, FAQ-Frequently Asked Questions

The CMC Clutch by Harken Industrial is a revolutionary piece of equipment designed for a wide range of rescue and rope access operations. Known for its versatility, durability, and safety features, the Clutch has become a trusted tool in both urban and wilderness rescue scenarios, as well as in industrial settings. It excels in tasks

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20-80 Rule for Rescue Gear and Mechanical Advantage Systems

Lance Piatt / Anchoring, Blog, CMC Clutch by Harken Industrial, CMC Rescue, Designing Your Processes, Equipment, Harken Industrial, Mainline Systems and Operations, Mechanical Advantage, Principles of Learning, Pulley Systems, Pulleys & Mechanical Advantage

20-80 Rule for Rescue Gear and Mechanical Advantage Systems Introduction The 20-80 rule shows that 20% of gear and techniques cover 80% of challenges in rescue operations. This is especially relevant for mechanical advantage systems (lifting and lowering setups) and essential rescue gear like multi-use devices, carabiners, and pulleys. By focusing on these core elements,

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Vector Forces and Rigging Mechanics in Rope Rescue

Lance Piatt / Artificial High Directional AHD, Blog, CMC Clutch by Harken Industrial, Designing Your Processes, Mechanical Advantage, Portable Anchors, Professional Standards

Vector Forces and Rigging Mechanics in Rope Rescue Introduction Rope rescue operations are inherently complex, requiring a nuanced understanding of vector forces and rigging mechanics. These elements are critical for ensuring the safety of both rescuers and victims. This blog will explore the foundational principles of vector forces and rigging mechanics, providing insights into how

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Performing a Pick-Off Rescue Using the CMC Clutch

Lance Piatt / Blog, Pickoffs

Performing a Pick-Off Rescue Using the CMC Clutch The CMC Clutch is a versatile device that functions as both a lowering and raising system, making it ideal for pick-off rescues. This guide outlines the steps to safely and effectively perform a pick-off using the CMC Clutch while ensuring the safety of both rescuer and subject.

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CMC Clutch and AZTEK Rescue Pickoff

Lance Piatt / Blog, Pickoffs

Using the Harken CMC Clutch and AZTEK for a Rescue Pickoff In the following illustrated examples, we are using the Harken CMC Clutch and AZTEK Mechanical Advantage (“set of fours”) system to conduct a safe and effective rescue pickoff. Independent Belay: Safety First Since a rappel pickoff is a rescue operation, an independent belay line

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Clutch in a Twin Tension Rope System

Lance Piatt / Blog, CMC Rescue, Equipment, How-To Concepts, Personal Competencies, RRG Gear Review, Safe Practices, Two (Twin) Tension Rope Systems, Two Tensioned Rope Rescue Systems / 31 Comments

Double Clutch: Using the Clutch in a Twin Tension Rope System (TTRS) The CMC Clutch, with its revolutionary design and versatility, has become an essential tool for Twin Tension Rope Systems (TTRS). This system enhances safety, efficiency, and control in technical rescue and rope access operations. Combining the Clutch with TTRS takes operational precision to

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Lowering and Hauling with the Clutch

Lance Piatt / Anchors, CMC Clutch by Harken Industrial, Twin Tension Rope System Clutch, Two Tensioned Rope Rescue Systems / 4 Comments

Lowering and Hauling with the Clutch The CMC Clutch has quickly become a cornerstone for modern rigging teams, offering unparalleled versatility and efficiency. Whether lowering or hauling, the Clutch’s intuitive design and robust functionality make it an indispensable tool for technical rescue and rope access operations. The Power of the CMC Clutch in Rigging Operations

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Inside 9 Mechanical Advantage

Lance Piatt / Blog, General Rigging, Horizontal Rigging, Mainline Systems and Operations, Mechanical Advantage, Pulley Systems, Pulleys & Mechanical Advantage / 36 Comments

The Inside 9 Mechanical Advantage System: A Game-Changer for Efficient Rigging In the world of technical rescue and rigging, efficiency, speed, and reliability are paramount. Over the past year, I’ve focused on refining my rigging philosophy with four guiding principles: rigging light, rigging quick, rigging solid, and rigging efficient. This journey has led me to

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High-Angle Raise with Vortex Side Frame

Lance Piatt / Anchoring, Anchors, Arizona Vortex, General Rigging, Rescue Response (Gear) Team / 7 Comments

High-angle rescue operations demand precision, safety, and effective use of advanced rigging equipment. The Vortex Side Frame, a cornerstone of Artificial High Directional (AHD) systems, provides the versatility needed for high-angle raises in challenging environments. In this blog, we’ll explore the foundational setup of a Vortex Side Frame for a high-angle rescue, including the necessary

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