Mainline Systems and Operations

A Frame | TWIN BUNDLE HIGHLINE | Horizontal Rigging

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

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

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

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

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 Rescue Systems – A New Course

Mainline Rescue Systems – A New Course An understanding of mechanical advantage systems — in raising and lower modes — is crucial to all rope rescue technicians. Dealing with Mass and Force is aspects of consequence if not considered during operations. Working with tensioned anchor systems, guying systems, high directionals, load positioning and litter movement …

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Analyzing a Rope Rescue System

A rope rescue system is a critical piece of equipment for those in the emergency services industry. It consists of multiple components that link together to allow personnel to safely move an injured person or other load from a hazardous location quickly and efficiently. Ensuring safe operations requires conducting a rigorous system analysis so you …

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Mainline Rescue Systems: Pre-plan the Working Line

Pre-plan the Working Line All too often, teams rig their haul system with the progress capture device (the ratchet) at a directional anchor located in front of the mechanical advantage system.  This ratchet position is most often due to the lack of pre-planning the layout of the working/haul line system. Usually, the rigger will build …

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4 Fundamentals of Force Multiplier Mechanics

Force multipliers and the four fundamentals of mechanics are important to understand in order to be a successful creator. The force multiplier is the means by which you can increase the force that you output, while the four fundamentals of mechanics are what keep your creation stable and functioning. If you want to be a …

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Confined Space Rescue Split 4:1 Raise

Excerpt Taken From Rigging Lab Academy’s ~ Confined Space Rescue: Technician course Confined Space Rescue Split 4:1 Introduction With the introduction of Petzl Grillons, AZTEKs, and other small mechanical advantage devices, a lot of people don’t use a rig split 4:1 anymore. If you don’t have access to a Grillon or small mechanical advantage systems …

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