Pulley Systems

9 Ways To Quickly Get A Hold of the 3 Types of Mechanical Advantage Systems

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 …

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PULLEYS AND MECHANICAL ADVANTAGE SYSTEMS

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 …

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Progressing to the Next Level in Understanding Mechanical Advantage Using The T-Method

Kudos goes out to Peak Rescue Institute for the help. The purpose of this lesson is to give the student rescuer a more thorough understanding of mechanical advantage. It will review basic concepts learned in the technician course and add advanced concepts such as the T-method, system efficiency, haul system progressions, and counter-balance haul systems. …

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Mechanical Advantage Progression

Thank you to Peak Rescue Institute for the graphics In this section, students will learn five different MA systems: 1:1, 2:1, 3:1, 4:1, and 5:1. This range of MA systems is sufficient to address the majority of rescue hauls encountered in normal field operations. As with most other aspects of rope rescue, consistent practice building …

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Mechanical Advantage, Part 1

Thanks to Peak Rescue Institute Full Video at the bottom! In general, the Ideal Mechanical Advantage (IMA) is the ratio between the distance the load moves and distances the haul team moves. In a 2:1 system the load will move 1′ to every 2′ of haul. However, this does not mean that lifting the load is twice …

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Dynamic Directional Offset System Using an A-Frame and Natural High Directional

Over time, we’ve found this style of deflection offset to be really fun. They have their limits, as with any system, but strength (when properly rigged and run) comes easy and we appreciate the versatility it offers. Large gaps or spans are typically the MO for dynamic directionals. We used a standard A-Frame configuration on …

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Staggering Your Rigging Anchors Increases Efficiency But At What Cost?

Staggering rigging anchors is a perfect way to spread the mechanical advantage system over a broad area, while at the same time, using the area very efficiently.  The goal is to get as much “throw” as possible and to limit resets.   There are numerous ways to do this and these are only two of the …

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