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Comparison between MAESTRO and I’D for a rescue using twin tensioned haul lines

By Lance Piatt / Anchoring, Anchors, General Rigging, Horizontal Rigging, How-To Concepts, Mainline Systems and Operations, Minimalist Mountain and Climber Rescue, Petzl, Principles of Learning, RRG Gear Review, Twin Tension Rope System, Two (Twin) Tension Rope Systems, Two Rope Offsets, Two Tensioned Rope Rescue Systems / 10 Comments

Excerpt from Gear In Use 2: Technical Rescue MAESTRO and I’D allow for efficient hauling, releasing the lock at any time, and a controlled lower of the load. The two devices have different ergonomics and different specifications (working load and efficiency). Hauling The MAESTRO’s efficiency enables the effective use of simple pulley systems. If a …

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NOT A SINGLE PRUSIK IN THE SYSTEM

By Lance Piatt / Blog, General Rigging, Mainline Systems and Operations, Petzl, RRG Gear Review, Two Tensioned Rope Rescue Systems / 10 Comments

This is a repost from Petzl. These folks have it right! NOT A SINGLE PRUSIK IN THE SYSTEM Why one Utah SAR team transitioned to the MAESTRO SEPTEMBER 29 2020 ON-SITE RESCUE “Give us thirty seconds,” said Utah County Search and Rescue Incident Commander, Jared Hansen. Thirty seconds to transition from a raise to a …

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Powered Winches and Tripods

By Lance Piatt / Anchoring, General Rigging, Portable Anchors / 8,907 Comments

Powered Winches and Tripods We are seeing an interesting collision of techniques: Standard triangular pyramid tripods used for confined space rescue Asymmetrical multi-pods used for technical rope rescue and rope access Powered winches Confined space operators have long been using symmetrical tripods with frame-mounted manual winches. These are normally set up over a …

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Marginal Anchors | Anchor Considerations in Rope Rigging Systems Vol. 2

By Lance Piatt / Anchoring, Blog, General Rigging, Pulley Systems, Team Competencies / 335 Comments

Marginal anchors in theory create a force out of many, but how should we present this diverse and sometimes controversial concept of anchor construction? This is an introduction to multiple back-ties and projecting the power of substantial anchors to a single focal point. Marginal anchors are generally considered independent anchors points that would not support …

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Bombproof Anchors | Anchor Considerations in Rope Rescue and Rigging

By Lance Piatt / Anchoring, Anchors, General Rigging, Team Competencies / 37 Comments

Excerpt from Anchor Considerations in Rope Rigging Systems Vol. 2 Segment 2 What is a bombproof anchor and what are some methods of rigging anchors? Bombproof anchors can hold it all… but does this principle apply in high directional anchors such as tripods, “A” frames, and gin poles? Questions of this nature are addressed in …

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Force Multipliers and What Are They?

By Lance Piatt / Anchors, Blog, Dynamic Directional, General Rigging / 116 Comments

To understand rigging is to understand at least some aspects of trigonometry and vector physics. The knowledge of angles, components, and resultants is synonymous with quality rope rigging. To study vectors is to study the physical qualities of force that has both direction and magnitude. There are two important distinctions we make in quantifying attributes …

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A Little Known Tool That Is Making Huge Headway… The Inside 9 Mechanical Advantage System

By Lance Piatt / Blog, General Rigging, Horizontal Rigging, Mainline Systems and Operations, Mechanical Advantage, Pulley Systems, Pulleys & Mechanical Advantage / 36 Comments

Over the last year or so I have been trying to up my rigging game with the main focus being “rigging light, rigging quick, rigging solid and rigging efficient”. I will be the first to admit that all for all of this to happen at the same time it is a special day. I will …

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Highline Anchors Featuring Removable Bolts

By Lance Piatt / Anchoring, Blog, General Rigging, Portable Anchors, RRG Gear Review, Tom Wood, Vertical Rescue Solutions / 12 Comments

This piece is from the RLA course Highline Sections with Tom Woods What we’re going to look at next is the actual anchoring system for the Highline that we’ve just done. It’s a little bit unique setup in that we’ve done all of our anchoring for everything off of removable bolts. Given the area where …

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A Quick Look at Two Tension Rope System and a Dynamic Directional Offset using Two Artificial High Directionals

By Lance Piatt / Artificial High Directional AHD, Blog, General Rigging, Two (Twin) Tension Rope Systems, Two Rope Offsets / 49 Comments

The Purpose (Vision) We have always encouraged experimentation and creativity when learning. I do my best to take the advice of people I respect. The other day I sat in the studio thinking about some unused space we have and decided to build a test piece… a small slot canyon where a hiker needed to …

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Technical Rescue: The Importance of 15:1

By Russell McCullar / Blog, Confined Space Rescue, General Rigging, Mainline Systems and Operations, Mechanical Advantage, Principles of Learning, Professional Standards, Pulleys & Mechanical Advantage, Safe Practices, Team Competencies, Two (Twin) Tension Rope Systems, Two Rope Offsets, Two Tensioned Rope Rescue Systems / 9 Comments

(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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