Class 5 Litter Handling It may be necessary to lower the litter and rescuer past a roof or overhang. In this event, it will often be best for the litter tender to get his or her legs through the spiders or above the spiders so that he or she can hold the litter away from […]
Class 5 Litter Handling & Offset Rigging Read More »
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
Mainline Rescue Systems: Pre-plan the Working Line Read More »
**This content is background and referential ONLY** The strategy of the 80/20 Pareto Principle can be applied to rope rescue teams and systems. This strategy can help build a team and system that is efficient, effective, and able to respond quickly during an emergency situation. The strategy consists of two dimensions: identifying what matters most
Using Pareto’s 80/20 Principle within Technical Rope Rescue Read More »
Rope rescue hardware is designed to function as part of a system. It must be used with properly selected and sized rope, webbing and other components compatible with the rescue scenario. The hardware must also be used within its safe working load limits and manufacturer’s instructions. Most hardware has not been tested to failure, so
Knowledge is not left behind… though equipment can be. Read More »
ALL YOU NEED TO KNOW ABOUT THE NEW PETZL PULLEYS & WHY YOUR TEAM WILL WANT THEM After the SPIN L1 models last year, in 2022, the range of pulleys continues to expand with the arrival of the SPIN S1 and the SPIN S1 OPEN. And of course we can’t forget the REEVE, a combination
ALL YOU NEED TO KNOW ABOUT THE NEW PETZL PULLEYS & WHY YOUR TEAM WILL WANT THEM Read More »
The following is an excerpt from the RRG and RLA Anchors course. Thanks to Peak Rescue Institute for the graphics! Selecting an Anchor Anchor Selection Anchor selection is a vast topic and could go on for hours, days, and even weeks. Excellent judgment, experience, practice, and insight all play a part in quality built anchors.
Selecting An Anchor Read More »
This is a repost from CMCPro.com 5/17/22 Where To Get CMC Pulleys Raising systems are essential in any rescue or rigging scenario in which loads are lifted using rope. A raising system using a combination of pulleys to leverage the force applied in lifting is referred to as a mechanical advantage (M/A) system. Whether building
PULLEYS AND MECHANICAL ADVANTAGE SYSTEMS Read More »
System Efficiency Effect of pulley friction. Most rescue pulleys have an efficiency rating of .75 to .90 (only 75% to 90% of tension is transferred from one side of the pulley to another due to friction). A carabiner used as a pulley has an efficiency of only about 50% or less (more for a steel
System Efficiency of Mechanical Advantage Systems Read More »
The Mechanical Advantage (MA) systems used in rescue incorporate one of the most elegant simple machines known to man, the pulley. While it is Newtonian Physics that explains how pulleys work, we owe the Sicilian mathematician Archimedes for its invention. History tells us that Archimedes boasted to his king that with enough pulleys he could
Functionality of Mechanical Advantage and Considerations Read More »
Thanks goes out to Peak Rescue Institute. A two rope off system is essentially a system of two two rope systems that are working in a complementary fashion to move a load down one side of a gap across laterally or horizontally, across the bottom of a gap and then up the other side.
Quick Overview: Two Rope Offset Read More »
