Pulleys & Mechanical Advantage

Technical Rescue: The Importance of 15:1

(This article was originally run in Firehouse October 1, 2019) Russell McCullar clarifies whether 15:1 is still relevant and says that fire departments should select gear and load limits that meet their needs. All Photos by Russell McCullar Not long ago, I was explaining to one of my students that our training agency was undergoing …

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Want To Be A Dirtbag?

I’ve had a lot of bad ideas so I get pretty excited when I have a good one.  The Crackerjack Group recently held a “flyer” of a class we dubbed The Dirtbag Clinic..  and it worked. The idea came about because we had some friends in town for the Mountain Rescue Association Conference and they …

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The Petzl Jag System Has Become A Go To Tool For At Height Workers and Rescuers

As Torrey and I travel around the country filming and managing a very large amount of footage, it has become very apparent to me that one product has become, what I would call… an “emerging product”.  While in days past, the AZTEK was (and still is to some degree) the work horse for rigging systems… …

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A Quick Pulley Comparison… They All Rock!

Hey all, I wanted to give a quick run down of some niche comparisons.  Most pulley manufactures today make amazing gear.  When I say most, I mean those within the centric conformity of  standards, safety and accountability.  We’ll be looking at CMC, Rock Exotica, and Petzl … and then, only a niched down subset of …

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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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The Gear Used In the 5 Day Advance Workshop… Here Is The Narrative!

Can we  have an Ultimate Gear List for anything?   Of course not and we all know that.. For the skiers out there this is like the mythical “one ski quiver”… that one ski that floats in powder, crushes crud, carves trenches on the corduroy, and holds Killington blue ice like a 2×4 with chisel edges. …

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Two Tension System-Vertical and Horizontal Evacuation Part 1: In-Line 9 Using A Petzl Jag System Is An Easy Solution!

The other day I walked into the studio (Neverland) armed with one goal for the morning… build a system that is Functionality Efficient in Gear Efficient in People Efficient in Physics AHD Based Small Team Based One Person Load Very Reproducible Raise Only Based (but with a margin of error that allows for downward adjustments… …

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Two Rope Twin Tension Mini Offset… Backcountry Meets Fire Service

So backcountry meets fire service… sounds like a battle of some sort.  So while this “match up” is really neither epic nor epoch, this contest does have some interludes that hasn’t always faired well for either side. A while back, some well needed direction was given to the fire service in the form of recommendations …

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You Will Never Look at Small Gear Small Team Rescue the Same Again

I am pretty excited about the future of our community.  Folks are talking more about what is important and designers, builders, techies, manufacturers, and instructors are all listening to each other… for the most part. 🙂 We are surrounded by amazing people. I have long desired to have a playground to build and adventure into things …

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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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