The following is from Loui McCurley/PMI Rope One of the MYTHS being generated about the new ANSI Z459.1 standard that was recently published as part of the ANSI Z359 Fall Protection Code is that this standard has introduced a prohibition on attaching TWO DESCENDERS to a SINGLE CONNECTION POINT on your harness. Before addressing that …
ANSI Z459.1 ROPE ACCESS AND TWO CONNECTIONS TO A SINGLE POINT Read More »
The MAESTRO, I’D or RIG descenders can be used in parallel in rescue situations, mainly with long rope lengths and smaller rescue teams. This technique enables a single user to simultaneously operate two devices. Advantages Even sharing of the load on the descenders Reduced potential extension of the system, in case one of the …
Two MAESTRO, I’D or RIG (used in parallel by a single operator) Read More »
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 »
I always appreciate great video. Video (to me) is either aesthetic or technical and trying to bridge both is tough. This video from CMC is clearly technical, but I really appreciate the angles of perspective. So often the “clarifying message” of “the how” can get completely lost if the angles are not right. The CMC …
Double CLUTCH | Using the CLUTCH In a Twin Tension Rope System (TTRS) Read More »
CMC MPD ~ Two Rope Offset ~ TTRS The MPD allows you to go from lowering to raising without changing hardware. More than nine years of research and development went into the patented Multi-Purpose Device (MPD), which features major innovations in advanced technical hardware for rope rescue professionals. The MPD’s high-efficiency pulley, with an integral …
So in this installment of Litter Hauling Techniques Using Dual Capacity or Twin Tension Rope Systems Part 2, I would like to jump into anchor and anchor systems used in a few of the systems we set up here this week. Neverland has three upper platforms or stages (as we call them) and the lower Ground …
Litter Hauling Techniques Using Dual Capacity or Twin Tension Rope Systems Part 2 Read More »
All right, this is the rescue scenario we’re doing right now is called a twin-tension skate block. We have a victim up top, once again, he is a compliant climber. He’s either fallen on his fall arrest device or sitting in his work positioning device, unable to get out of it, and he’s unable to …
Tower Rescue Ground Control Twin Tension Skate Block Read More »
What to learning something well?… “Do it yourself “. Well, this isn’t always the case, but for me (right now) it is. While not obsessed, I am really curious as to what a true minimally viable raise and lower system looks and feels like. Remember the 3 types of learning?….. Vision, Auditory and Kinesthetic. Well, …
So here we’ve got a skate block. These are very effective in confined space rescues. 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 …
Almost all rope rescue systems used could be considered a “two rope system”. Traditional mainline / slack belay systems and twin tension rope systems (TTRS) both use two (2) ropes. However, the similarities stop there. I won’t get into the biopsy of the mainline-belay line system because, well… they have been around forever. The “relatively” …
Two Rope System Cross Pollination: A Tale of Two Industries Read More »
