Richard Delaney

Vectors, Scalars, and Unit-less Values, Part 2

Excerpt from Rigging Lab Academy’s Force Multipliers  Video is at the bottom I want to look at how we add vectors together. Previously, we discussed that if someone describes a displacement where they had two miles north and one mile east, we can add those together to get that endpoint. I want to look at […]

Vectors, Scalars, and Unit-less Values, Part 1

Full Video is at the bottom A force multiplier is any factor or condition that contributes to the overall stress of a rope system during a dynamic state. Rating this dynamic state or rope movement/stress is best represented as the Dynamic System Safety Factor (DSSF). In other words, what’s our weakest link during the operation

Industrial Skate Block Trackline System Lower Section (Part 2)

Now we’re down at the bottom end. As I said at the top, we’ve got our red track line and we’ve got our blue skate block. The attachments here, we’ve got a pulley on the track line. Also on the track line we have a mobile fall arrester, a Petzl ASAP. That means worst case,

Industrial Skate Block Trackline System Upper Section (Part 1)

Hi, I’m Richard Delaney from Rope Lab in the Blue Mountains of Australia, and I’m working today with the Rigging Lab Academy. Today we’re working at Deschutes Brewery in Bend, Oregon. We are working with the same type skate blocks that we’ve been looking at in previous sessions, but this time we’re working in an

Redundancy in Rope Systems

The term ‘redundant’ is used with roping systems however I often wonder how much thought is truly put into this concept.  By definition, a redundant component of a system is one that is not needed.  A system with complete redundancy is one that will not fail as a consequence of the failure of any single

Using the Fast Fours for Confined Space Rescue and Fallen Worker Rescue/Recovery

What has happened… a worker has fallen from his working platform. The worker condition is good enough where he is able to assist in his own recovery and rescue. This video was developed over a span of time where Rich took to heart, the process of confined space rescue, fallen worker rescue and simply using

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

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

Fall Factor 2

Fall Factor 2  Richard Delaney  November 17, 2017  Free Articles  2 Comments In early 2016, I wrote a short piece on Fall Factors. It is published as the article, Fall Factor.  It was a brief article with a standard definition and a discussion of each of the following scenarios.   I am not certain when the term “Fall Factor”