Search Results for: mechanical advantage systems

T Method Applied To Mechanical Advantage Systems Using Rope Grabs

T Method Applied To Mechanical Advantage Systems Using Rope Grabs. Calculating mechanical advantage: the T-system 1. Assume continuous strands of rope have the same amount of tension. If we start at the point where effort is applied and assume that we apply one unit of tension (1T) then we can assume that the tension along …

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Parallel Hauls, Doubled Mechanical Advantage or Not?

Today at Rigging Lab Academy, we’re going to bust this myth that parallel mechanical advantage systems somehow add together and double mechanical advantage. There are arguments out there that two 3:1s side by side pulled on the same load are a 6:1, or two 5:1s are a 10:1. It’s not true, and we’re going to …

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For Two Tension Dual Capacity Rope Systems Savvy Technicians: The Efficiency Schematic

So lately, I have been going through a type of transformation of sorts.  I will be honest… not all of the process has been fun and pushing through bias demons can be difficult, but with friends like Craig McClure, Jason Ilowite and Rich Delaney… the sojourn has been rewarding.  Bear in mind that a sojourn …

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Litter Hauling Techniques Using Dual Capacity or Twin Tension Rope Systems Part 2

So in this installment of Litter Hauling Techniques Using Dual Capacity or Twin Tension Rope Systems Part 2, I would like to jump into anchor and anchor systems used in a few of the systems we set up here this week.  Neverland has three upper platforms or stages (as we call them) and the lower Ground …

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Litter Hauling Techniques Using Dual Capacity or Twin Tension Rope Systems: A Journey Part 1

What to learning something well?… “Do it yourself “.  Well, this isn’t always the case, but for me (right now) it is.  While not obsessed, I am really curious as to what a true minimally viable raise and lower system looks and feels like.  Remember the 3 types of learning?….. Vision, Auditory and Kinesthetic.  Well, …

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A Confined Space Rig: Anchors, Pulleys And The Haul Field in Rope Rigging Systems

Let’s continue with our pulley discussion. We have here a confined space rig, what I like to call it. It’s unique in that we have a tripod, and anybody who’s been around these things know they’re susceptible to tipping over, so it’s important, if you’re going to do something like this, that you have equal forces …

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Two Tension Rope Systems: The Time Has Come

Two Tension Rope Systems Background: As a rescue community, it is accepted as best practice to employ a two-rope system in order to best protect life safety. Most traditionally up to this point the dedicated main dedicated belay (DMDB) has been common practice. This employs a technique in which the full amount of the load …

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Richard Delaney RopeLab

Mechanical Advantage: 2:1 or 3:1? – RLA Partner Richard Delaney of RopeLab

I thought this was a super quick illustration to show how observation and proximity make a difference.  The question, here is  what is the mechanical advantage difference between a “ground hauler” or that of the “load hauler”.  The significance is found in the frame of reference… the applied force to the input is what defines …

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Go 0 to 60 In Your Understanding of Mechanical Advantage

Determining mechanical advantage using the T-Method is really the guiding method to determine the “ideal mechanical advantage” or IMA.  However, note… this method doesn’t take into consideration the friction problems or coefficient of rope bending or turning on metal. So what is mechanical advantage? Mechanical Advantage Definition 1 “A force created through mechanical means including, …

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A Quick Overview and Essential Checklists of Highline Systems

I want to thank Steve Crandall for his work Rigging Rescue Concepts, from which some of this article is derived from. Grab his book here… Considered by many as advanced operations because highlines deviate in many ways from standard rope rescue rigging practices, building and using highlines requires a clear understanding of sound rigging principles …

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