Anchoring Archives | Page 2 of 9 | Rigging Lab Academy

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 …

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

The New SMC TerrAdaptor Space Station

By Lance Piatt / Anchoring, Blog, Equipment, Portable Anchors, RRG Gear Review, TerrAdaptor / 122 Comments

The TerrAdaptor™ is a great portable anchor system available for use in rescue, industrial, and wilderness environments. This system is the result of the combined years of experience in the design, engineering, and manufacturing of equipment by Seattle Manufacturing Corporation (SMC). The TerrAdaptor system has been tested extensively in both lab and field environments. As …

The New SMC TerrAdaptor Space Station Read More »

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 …

Powered Winches and Tripods Read More »

Different Carabiner Shapes

By Lance Piatt / Anchoring, Blog, Carabiners Rescue Safety Rigging, Petzl / 189 Comments

A good choice of carabiner shape can increase ergonomics and security for certain uses. The shape of the carabiner frame has an influence on: • major axis strength • load distribution • gate opening size, and capacity • strength in certain positions • ease of handling Another less obvious effect is the balance of …

Different Carabiner Shapes Read More »

Rigging Multi-Point Anchors In Rope Rescue

By Lance Piatt / Anchoring, Anchors, Blog / 129 Comments

Multipoint Anchors Building an anchor system requires much practice and experience. In the end, simplicity and complexity are competency issues. Competency takes time to build and this doesn’t come without an investment of focus and purpose. Building an anchor system requires much practice and experience. When dealing with structures, chose anchor points that are part …

Rigging Multi-Point Anchors In Rope Rescue Read More »

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 …

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

Building Anchors with Spring Loaded Cams- Pull Test Using Metolius Camming Units

By Lance Piatt / Anchoring, Anchors, Blog, Horizontal Rigging / 40 Comments

Building Anchors with Spring Loaded Cams Pull Test Using Metolius Camming Units So we did some back yard testing and while what we found wasn’t particularly astonishing, it was never the less, very interesting. We purposely used some marginal placements with our Metolius camming units. Some more marginal than others. We found a range from …

Building Anchors with Spring Loaded Cams- Pull Test Using Metolius Camming Units Read More »

Releasable anchors with the Petzl I’D

By Lance Piatt / Anchoring, Belaying, Blog, Petzl

Releasable anchors with the I’D Setting up a rope on a releasable anchor allows a worker to be lowered in case of an accident, with no need for the rescuer to access the victim. Another advantage: a single person on foot can monitor multiple workers at height. WARNINGS Read the technical notice before viewing …

Releasable anchors with the Petzl I’D Read More »

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 …

Bombproof Anchors | Anchor Considerations in Rope Rescue and Rigging Read More »

Staggered Anchors: Progression from 3:1 to 9:1 Simple Mechanical Advantage

By Lance Piatt / Anchoring, Personal Competencies, Pulley Systems, Pulleys & Mechanical Advantage / 219 Comments

Excerpt from Knots & Pulleys in Rope Rigging Systems Vol. 1 Segment 7 Let’s continue with our discussion on pulley systems. We can look at what we have right here. You can see the Vortex and we have a sandbag as a weight right now. What we have here in the way of a …

Staggered Anchors: Progression from 3:1 to 9:1 Simple Mechanical Advantage Read More »

Anchoring