Excerpt from Gear In Use 2: Techncial Rescue All maneuvers must be done on two independent rope systems. These two systems can work in parallel (two haul lines) or separately (work rope and belay rope). Gear Within This Learning Lesson Petzl Maestro Petzl Jag System Petzl RollClip Petzl Rescucender 1. Examples of hauling with …
A WINE CELLAR UNLIKE ANY OTHER Professionals may have their daily routine, but there are definitely those projects that stand out head and shoulders above the rest for their originality. The company Besson Michel worked on one of these projects, digging a wine cellar designed specifically for only the most prestigious vintages. Of course, Petzl …
What if trees had ratings? What an amazing concept. John Morton, an engineer-scientist-visionary-technician, has been doing canopy studies for years and knows how they are affected by wind. Trees, whether alone or in community, are all influenced by wind and all have a certain “wind rating” to them. When SAR members show up on scene, and …
From John Morton for ITRS: Tree Anchor “Ratings” Based on Wind Loading Read More »
All maneuvers must be done on two independent rope systems. These two systems can work in parallel (two haul lines) or separately (work rope and belay rope). 1. Examples of hauling with work rope and belay rope. All hauling and positioning forces are concentrated on the work rope. The belay rope is set up and …
Team Rescue Techniques for Hauling and Lowering with Petzl Maestro Read More »
This is a really quick look at one of the many ways a tracking skate-block can be built and run. We often hear of folks looking for a easy way to get people from “top to bottom” without having to deal with the headaches of “the math”. And so while you’ll never be able to …
As kids, all of us have wanted to climbing trees. As we get older, the desire is replaced by other things (less or more important). There comes a point in the lives of certain people where climbing trees is again not just a priority but a means of income as well as fun. And like …
Benefits of the Petzl ZigZag and Petzl Zillon for Tree Climbing Arborists Read More »
Everyone has a key to success right? Everyone seems to have “5 Steps To Somewhere”. I even see the 7 Pillars of [fill in the blank]… Oh wait, I did that one (sorry). So I thought what I’d do is give you three quick tech tips for your weekend. Use them and enjoy.
It is no secret in the world of technical rope rescue that high directionals can vastly improve the efficiency of an operation. High directionals provide ample room to clear a litter from an edge, can improve the angle of ropes running over the edge creating less force on a system, and perhaps the most notable …
By: Marcel Rodriguez I have long been a fan of artificial high directional anchors (AHDs) for dealing with tricky edges. Beyond the obvious benefits of having a focal point above a tricky edge, the reduction of mechanical disadvantage (through friction) is a strong argument for raising the rope off of the deck and reducing contact. …
Richard Delaney, the founder of RopeLab and curator of Rope Test Lab, brings you the essential rigging concepts in this Rigging Lab Academy mini course. Anchors, mechanical-advantage calculations, friction and managing edge trauma, and skate-blocks are all discussed in this mini course, which is available for free for all members of Rigging Lab Academy.
