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A Quick Overview of The Basics of the T-Method For Calculating Mechanical Advantage

By Lance Piatt / Blog, Richard Delaney, Technical Learning / 22 Comments

The ‘T-system’ for calculating Mechanical Advantage At their simplest, pulleys can be viewed as levers. This becomes more obvious if you consider the static system (where everything is at rest). To understand the ‘T-system’ for calculating Mechanical Advantage always start with the input (the effort end of the system) and assume that force of …

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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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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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How to calculate mechanical advantage within a progression!

By Lance Piatt / Blog, Petzl, Principles of Learning / 6,134 Comments

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 …

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A Mechanical Advantage Overview

By Lance Piatt / Blog, Mechanical Advantage / 12 Comments

Mechanical Advantage Overview Mechanical Advantage is a measure of the force multiplication achieved by using a tool. In most cases, this involves using pulleys, but that isn’t always the case. The purpose is to show how we can achieve more work with less people AND that sometimes having more people can actually be dangerous. An …

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Ascenders and Clamps Technical Tips: How to calculate mechanical advantage

By Lance Piatt / Blog, Petzl, Principles of Learning, Pulley Systems, Pulleys & Mechanical Advantage / 10 Comments

©Petzl Technical Information ©Petzl How to calculate mechanical advantage 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 …

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How To Calculate Mechanical Advantage with Petzl Gear

By Lance Piatt / Blog, Mainline Systems and Operations, Mechanical Advantage, Petzl, Pulley Systems, Pulleys & Mechanical Advantage / 38 Comments

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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5 Rules to Help Determine Simple & Compound Mechanical Advantage Systems

By Peak Rescue Institute / Blog, Pulley Systems, Pulleys & Mechanical Advantage / 24 Comments

From Rigging Lab Academy Course Mechanical Advantage Theory There are three categories of mechanical advantages using pulleys: Simple, Compound, and Complex. Simple MA: A Simple MA consists of a pulley system that has a single haul connection between the load and the haul team. Compound MA: A Compound MA is a simple mechanical advantage system pulling on the haul line …

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Mechanical Advantage- Calculation of MA with the T Method in a simple system

By Lance Piatt / Mechanical Advantage, Pulleys & Mechanical Advantage, Richard Delaney

Hey all This is a quick trip through the classroom with Rich Delaney. I had a few questions this week about properly determining any given mechanical advantage ratio. We have some many great examples, so I pulled this video from the Rigging Lab Academy. course files. Welcome to the T Method. The T-System for calculating …

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Determining Mechanical Advantage using the T-Method with an added Pulley on the Load

By Lance Piatt / Pulley Systems, Pulleys & Mechanical Advantage

Calculating mechanical advantage: the T-system The subtle but significant difference to this system… a pulley on the load and the main line terminated at head of the tripod. We have a 6:1 mechanical advantage in the pulley system. 1. Assume continuous strands of rope have the same amount of tension. If we start at the …

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