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 »
Get More Done With Less… and remove the mystery out of “the theory” of Mechanical Advantage Systems. Mechanical Advantage Systems ~ arguably is the “bulwark” of rope rescue… giving strong support, encouragement and leadership to those in need. Wait! Doesn’t “bulwark” have to do with wall like structures raised for defense? Like a seawall? Sort …
9 Ways To Quickly Get A Hold of the 3 Types of Mechanical Advantage Systems Read More »
When we developed ideas into courses, we considered many things. Yes, we went through the SWOT analysis as well. Know this will get you What, Where, When, and How! Strengths Opportunities Weaknesses Threats I will let you reference this, however we went through all 4 elements before we engineered, designed, went to production and released …
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 …
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 »
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 effective use of simple pulley systems. If a complex pulley system is needed to increase efficiency, it …
Basic Highline System with Pulleys, Rope and Pulley Systems for High Angle Technical Rescue Highline operations are one of the most dangerous and most difficult vertical rescues. Highline rescues invoke the use of advanced rigging skills, performed by advanced technicians. Under no circumstances should a highline be attempted solely on the instruction of this …
We’re back at the Rescue Response Gear Rigging Lab. Today, during this presentation we’re going to talk about anchors. Now, this is going to be a broad-based presentation. We’re really kind of still in the awareness stages of this. We’re going to have future presentations that go into the specifics of the physics, and really …
Managing Friction: Anchor Considerations in Rope Rigging Systems Read More »
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). Gear Within This Learning Lesson Petzl Maestro Petzl Jag System Petzl RollClip Petzl Rescucender 1. Examples of hauling with …
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 …
Comparison between MAESTRO and I’D for a rescue using twin tensioned haul lines Read More »
