Mainline Systems and Operations

Elements of a Tripod (English) Reeve

Excerpts from Rigging Lab Academy’s ~ Confined Space Rescue: Technician Tripod (English) Reeve Overview We can get into situations where either because the products that are coming out of the space are some sort of Ethyl Methyl death (where you don’t want a lot of people around the outside of the hole) or the hole …

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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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Gear Used In An English and Norwegian Reeving System – Overview

Gear Used In An English and Norwegian Reeving System – Overview You can use Reeves Systems on tripods, artificial high directional devices, or tension lines. These are great systems to keep rescuers out of the hazard zone, whether it be a limited rigging area where there’s a danger of a fall hazard, or whether that …

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General Rescue Principles

Excerpt from Gear In Use 2: Technical Rescue Inert suspension in a harness, even for a short time, can cause serious physiological harm. In case of an accident, it is important to intervene quickly with the appropriate technique. Self-rescue On sites where the main access could be cut off by fire, people must be ready …

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Team Rescue Techniques For Hauling and Lowering

Excerpt from Gear In Use 2: Techncial Rescue All maneuvers must be done on two independent rope systems. These two systems can work in parallel (two haul lines) or separately (work rope and belay rope). 1. Examples of hauling with work rope and belay rope. All hauling and positioning forces are concentrated on the work …

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CMC Pro CSR2 Pulley System ~ Worth Another Look

The patented locking mechanism in our updated CSR2 Pulley is easy to release under load, creating much greater efficiency with the lowering and raising necessary to a confined space rescue. The machined aluminum swivels at both ends of the system eliminate any potential twisting of the lines. This system is also an excellent choice for …

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Comparison between MAESTRO and I’D for a rescue using twin tensioned haul lines

Excerpt from Gear In Use 2: Technical Rescue MAESTRO and I’D allow for efficient hauling, releasing the lock at any time, and a controlled lower of the load. The two devices have different ergonomics and different specifications (working load and efficiency). Hauling The MAESTRO’s efficiency enables the effective use of simple pulley systems. If a …

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Drop loop haul on the MAESTRO for urgent rescue

From Gear In Use: Technical Rescue ~ 5.1 Drop loop haul on the MAESTRO for urgent rescue In certain cases of extreme urgency requiring a very rapid response, the rescuer can access the victim by descending on one rope. Once the emergency has been addressed, upward evacuation can be done at a “normal” level of …

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How To Calculate Mechanical Advantage with Petzl Gear

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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NOT A SINGLE PRUSIK IN THE SYSTEM

This is a repost from Petzl. These folks have it right! NOT A SINGLE PRUSIK IN THE SYSTEM Why one Utah SAR team transitioned to the MAESTRO SEPTEMBER 29 2020 ON-SITE RESCUE “Give us thirty seconds,” said Utah County Search and Rescue Incident Commander, Jared Hansen. Thirty seconds to transition from a raise to a …

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