Thank you Peak Rescue Institute Let’s begin with manual hauls. When you talk about manual hauls or mechanical advantage, you have to talk about work. Work is done when force moves an object. Well, what’s this thing called force? Force is simply a push or pull that causes an action. And in fact, force can …
Choice of carabiners for hauling systems and pulley attachment Key issues and risks For hauling, the highest efficiency is desired, which is obtained by choosing efficient pulleys, but also by ensuring that the devices are ideally aligned or positioned. Requirements and needs differ depending on the situations and the equipment to be connected; there may …
Choice of Petzl Carabiners for Hauling Systems and Pulley Attachment Read More »
So as most of our community knows… we incredibly excited about the Two (Twin) Tension Rope System. Technically, it isn’t new, but newer. The system, like most paradigm shifts, need some time to acclimate. Not the system mind you… the teams, individuals and thus expectations, goals and SOPs. Rather than try to create “new” information …
Two Rope Offset Systems or “cross hauling” uses two identical working systems (normally). Now while some use a main-belay system, we are advocating a “two tension system” as it “halves” the amount of tension on both sides respectively, thus reducing the chances of any load related challenges… I am purposely not using the term “catastrophic …
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 …
Litter Hauling Techniques Using Dual Capacity or Twin Tension Rope Systems Part 2 Read More »
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, …
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 …
A Confined Space Rig: Anchors, Pulleys And The Haul Field in Rope Rigging Systems Read More »
Generally, these beauties are considered pre-rigged pulley systems used mainly for hauling, but can be very important in lowering heavy loads as well. The advantage of these systems is in their rapid deployment, and straightforward operation without advanced levels of training or expertise. They are low maintenance and high yield work horses and have been …
Jiggers Are Compact 4:1 Pulley Systems and are The Rigger’s Future Read More »
We’re back here at the lab, and this is a continuation of what we’ve done, the past couple of days with high lines. In quick review, We had, and we built the track line, and we had the control line for our basic high line system. Now what we’ve added to it is a third …
English Reeve: Control Side & Carriage System Highline Systems Read More »
The T-method of analysis allows us to account for the friction in the pulleys and calculate a more accurate mechanical advantage. The efficiency of each pulley is calculated by measuring the difference between its theoretical output force, from our original system analysis, and its actual output force, determined experimentally. The efficiencies are then multiplied together …
Actual Mechanical Advantage – Rope Rescue Rigging Systems Read More »
