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

Written By: Lance Piatt

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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 “the load” by itself, but when used jointly as a system of anchors – would. I disagree with the theory that marginal anchors should be avoided.  Most environments require multipoint anchors in one configuration or another.  When appropriate rigging in duly used, anchors will extremely strong and useful.

Let’s talk about this marginal link or multi-point anchor systems and how that applies; A very important tool in rigging, especially in locations that might be out in the wilderness. There’s a lot of skill that goes into placing quality anchors, marginal anchors. And yes, you can take marginal anchors and make them into a usable single focal point, and common practice in the wild and in the wilderness locations. It takes a lot of practice and a lot of skill to be able to get to that point.

What we have here [referring to the video from here on out] is something like that, but it’s also different, and this is a little more what you might find in the rescue service or possibly industrial services. In this case, we have a spot where we need an anchor, and it’s represented by this monopod, the single leg of the Vortex, and the monopod head.

How do I secure this? Well, I’m going to look for fairly substantial anchors. In this case, we have the industrial cams that are in the concrete. Each one’s worth about 5,000 pounds. So collectively, they give me a really nice solid point right here at this anchor spot. Again, we’re not going to go into the details of the back tying and how to rig this up at this time. The main thing to look at, in most applications, especially in urban settings, what I would prefer to call a marginal anchor is, how do we back tie marginal anchor points into a usable location?

The way we address knots, MAs (Mechanical Advantages) and Anchors in these videos are more general and with a focus of the finer points that are many times overlooked. Our hopes are that the viewer walks away with an energized commitment to studying the “WHY” behind general rigging, and focus on an extremely clean approach and a dedication to practice and muscle memory. We will explore the finer points of these topics that are applicable to anyone who is called upon to rig.

 

Anchor Ebook…

Hidden Content

Peace on your Days

Lance

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