Rock Exotica Omni Blocks are machined out of a solid block of aluminum for an impressive strength to weight ratio.ISC Haulerbiner is a mechanical advantage system, which has three pulley wheels incorporated into each Karabiner, creating a compact and lightweight 6:1 or 7:1 Mechanical Advantage system.Here a few of the products being using in this tutorial video. We thought about it, analyzed the options vs the design features and determined we were good to go. In the case, for whatever reason, we were limited in gear and the double Omni was what we had. We are aware of philosophical sides of this and appreciate the view point. To our knowledge, only the Rock Exotica Omni Blocks allow this use and are in fact, fine with it. Just use 11mm rope to remove the possible abrasion the rope may incur from the side plates with larger 12.5mm rope. The product has been designed and tested to do so. for the Rock Exotica Omni Blocks… this is fine. We contacted Rock Exotica on this and as a paraphrased answered. Yes… there is a single line running through the Rock Exotica Double Omni pulley. Hey! Also, some of you folks have a great “eye” for the technical stuff. It should bi-directional, preferably whistle stop panic features, and they’ll simply be using a 3:1 mechanical advantage in that system to lower and raise that particular load. On the controlled descent side, you’re just looking for a controlled descent device that will also belay a load. The rest of the rigging, the tension lines and the controlled descent side, is the same as your reeve system. You can do a traditional skate block or, like behind me, a tight line skate block which allows you to get a little bit further away from the structure. This allows us to utilize two lines on a high point through a change of direction directly down into the space, in this case, using the tension lines as the high point, bringing the patient up, having the knot hit the change of direction pulley, and then utilizing a mechanical advantage system, a small “set of fours”, in order to move that patient and create a skate block. These are very effective in confined space rescues.
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