Pulleys & Mechanical Advantage Archives | Page 2 of 8

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

By Lance Piatt / Blog, Mechanical Advantage, Pulley Systems, Pulleys & Mechanical Advantage, Twin Tension Rope System, Twin Tension Rope System Clutch, Two (Twin) Tension Rope Systems / 36 Comments

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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8 Defined Rescue Rigging Systems That Will Astonish The Entire Team… By Using Well Define Processes

By Lance Piatt / Blog, Confined Space Rescue, Designing Your Processes, Dynamic Directional, General Rigging, Highline Rigging, Horizontal Rigging, Mainline Systems and Operations, Mechanical Advantage, Petzl, Pulleys & Mechanical Advantage, Two (Twin) Tension Rope Systems, Two Tensioned Rope Rescue Systems / 80 Comments

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 …

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PULLEYS AND MECHANICAL ADVANTAGE SYSTEMS

By Lance Piatt / Blog, CMC Rescue, Pulley Systems, Pulleys & Mechanical Advantage / 375 Comments

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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System Efficiency of Mechanical Advantage Systems

By Lance Piatt / Blog, Pulley Systems, Pulleys & Mechanical Advantage / 259 Comments

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 …

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

By Lance Piatt / Blog, Mechanical Advantage, Pulley Systems, Pulleys & Mechanical Advantage / 295 Comments

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

By Lance Piatt / Blog, Mechanical Advantage, Pulley Systems, Pulleys & Mechanical Advantage / 295 Comments

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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Functionality of Mechanical Advantage and Considerations

By Lance Piatt / Blog, Mechanical Advantage, Pulleys & Mechanical Advantage / 139 Comments

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 …

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Mechanical Advantage, Part 3

By Lance Piatt / Blog, Pulley Systems, Pulleys & Mechanical Advantage / 99 Comments

Thanks Peak Rescue Institute Full Video at the bottom All right. The next mechanical advantage system in our progression is a five to one mechanical advantage system. And this is a simple five to one mechanical advantage system. So we’ve already differentiated between simple and compound. The last system that we showed was a four …

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Mechanical Advantage, Part 2

By Lance Piatt / Blog, Mechanical Advantage, Pulley Systems, Pulleys & Mechanical Advantage / 191 Comments

Thank you Peak Rescue Institute Full Video at the bottom So progressing up through the levels of mechanical advantage from 3:1, we can go to a 4:1. For those in the fire service, this is a fairly common mechanical advantage system that we’ll find actually piggybacked onto a main rescue rope. So we’ll build a …

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Mechanical Advantage, Part 1

By Lance Piatt / Blog, Mechanical Advantage, Peak Rescue Institute, Pulley Systems, Pulleys & Mechanical Advantage / 196 Comments

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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Pulleys & Mechanical Advantage