There can be a big difference between the theoretical efficiency of a pulley system and its actual efficiency. Here are test results from the Petzl lab. From Gear In Use 4: Rope Access and Confined Space 1. Efficiency depending on the device used at the head of the system. The…

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 effective use of simple pulley systems. If a complex pulley system is…

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…

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,…

Welcome to the third and final demonstration installment of our confined space rescue series… Confined Space Rescue Demonstration: Technician.  We have a stacked line for you with tons of tips, information, and demonstrations. What you’ll be watching is far from exhaustive, however, we’ve tipped the scales way beyond anything you’ll…

Welcome to Confined Space Rescue Demonstration: Operations. This demo will provide you with the theory to operate at the NFPA confined space rescue operations level. As rescue is a skill-based event this theory needs to be matched with skill-based follow-up training prior to you trying this on your own. The Setting…