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 […]
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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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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
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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
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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 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
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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
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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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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 »
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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