Mainline Systems and Operations Archives

Mastering the Art of Mainline Rescue and Rigging: A Comprehensive Guide

By Lance Piatt / Blog, Designing Your Processes, Dynamic Directional, Elevated Anchor Systems, Horizontal Rigging, Mainline Systems and Operations, Mechanical Advantage, Principles of Learning, Pulley Systems, Pulleys & Mechanical Advantage, Safe Practices

Mainline rescue and rigging systems encompass a comprehensive set of principles and techniques crucial for safely and effectively performing various forms of rescue and rigging operations. These systems are essential in scenarios like technical rescue, wilderness rescue, and industrial rigging, where precision and safety are paramount. Below is a synoptic overview of the key aspects …

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Mastering Rigging Fundamentals: Forces, Mechanical Advantage, and Moving Systems

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

Rigging plays a pivotal role in the world of rescue operations, where the ability to analyze and manage forces effectively can make the difference between a successful mission and a potential disaster. In this blog, we will delve into three fundamental aspects of rigging: understanding the forces at play, harnessing mechanical advantage with pulley systems, …

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Floating Along Is A Nice Way To Go – – The Guiding Line

By Lance Piatt / Blog, CMC Clutch by Harken Industrial, CMC Rescue, Elevated Anchor Systems, Litter Operations, Mainline Systems and Operations, Offset Track Line, Principles of Learning, Pulleys & Mechanical Advantage, Skate Blocks, Tower Rescue, Tracking Lines, Two Rope Offsets

A guidance system merges a descent mechanism with a tensioned rope to aid in safely lowering a stretcher, whilst ensuring it is kept at a safe distance from the surface. This technique becomes particularly useful in challenging environments, such as the rocky terrains commonly found at the base of cliffs, which make transportation to level …

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A climber falling 60′ while checking the route at the edge before roping up – In Critical Condition

By Lance Piatt / Blog, Designing Your Processes, Elevated Anchor Systems, General Rigging, Horizontal Rigging, Mainline Systems and Operations, Patient Packaging, Portable Anchors, Principles of Learning

This illustration features a climbing outing gone awry with a climber falling 60′ while checking the route at the edge before roping up. The Rescue Response Team responds employing a high angle raise with the Arizona Vortex side A-frame in tandem with a backboard immobilization lifting harness and litter to bring the fallen climber back …

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A FRAME | QUAD BUNDLE HIGHLINE | Horizontal Rigging

By Lance Piatt / Blog, Elevated Anchor Systems, Equipment, General Rigging, Highline Rigging, Horizontal Rigging, Mainline Systems and Operations, Pat Rhodes, Prusik Strength and Use

Let’s look at the floating A-frame of our quad system right now. The floating A-frame is being guyed forward and backwards with the prusiks directly connected to the track line system. Okay. So this is our guying system front and back. This is pretty clean right here the way the guys put this together… a …

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A Frame | TWIN BUNDLE HIGHLINE | Horizontal Rigging

By Lance Piatt / Blog, Elevated Anchor Systems, Equipment, General Rigging, Highline Rigging, Horizontal Rigging, Mainline Systems and Operations, Pat Rhodes, Portable Anchors, Prusik Strength and Use

We’ve moved over to the floating A-frame, very much like the floating A-frame that we used for the single track line, but as we said, we’ve added the second track line here. It’s very important that these two track lines be tensioned the same. We would never mix products, for instance. We would never have …

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Gin Pole | TWIN BUNDLE | Horizontal Rigging

By Lance Piatt / Blog, Elevated Anchor Systems, General Rigging, Highline Rigging, Horizontal Rigging, Mainline Systems and Operations, Pat Rhodes, Prusik Strength and Use

We’ve moved ourself down now looking at, the opposite end of the control side. We’re on the gin pole side, the “A” frame being the other side. And, let’s just talk about this real quick. Again, very similar to what we had with the single track line. We have the the twin bundle track line …

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English Reeve: Control Side & Carriage System Highline Systems

By Lance Piatt / Blog, Designing Your Processes, Dynamic Directional, Elevated Anchor Systems, General Rigging, Highline Rigging, Horizontal Rigging, Mainline Systems and Operations, Mechanical Advantage, Pat Rhodes, Portable Anchors, Principles of Learning, Prusik Strength and Use, Pulley Systems

We’re back here at the lab, and this is a continuation of what we’ve done, the past couple of days with high lines. In quick review, We had, and we built the track line, and we had the control line for our basic high line system. Now what we’ve added to it is a third …

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Rope Rescue Gear and Everything Between! Part 4 – Selecting a System Safety Factor

By Lance Piatt / Blog, Designing Your Processes, Mainline Systems and Operations, Mechanical Advantage

When it comes to ensuring safety, there are a number of factors that need to be taken into consideration. During training sessions, the safety standards could be lower than during rescue operations as trainees may not have the same level of experience and expertise. However, this does not mean that training sessions can be conducted …

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Actual Mechanical Advantage – Rope Rescue Rigging Systems

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

The T-method of analysis allows us to account for the friction in the pulleys and calculate a more accurate mechanical advantage. The efficiency of each pulley is calculated by measuring the difference between its theoretical output force, from our original system analysis, and its actual output force, determined experimentally. The efficiencies are then multiplied together …

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Mainline Systems and Operations