Sistema de Vantagem Mecânica 4:1 com o JAG System da Petzl – Testes na Prática

In this video, I present the Petzl JAG System, a mechanical advantage system originally designed with a 4:1 configuration, which can reach 5:1 depending on the application and connection with other devices, such as a descender. I provide a practical demonstration using a real load, simulating a rescue or weight removal, to show in practice how the mechanical advantage works and the perceived efficiency during use. In addition, I connect the system to a rope descender, expanding its applicability in work-at-height and technical rescue scenarios. If you work in rescue, rope access, or work-at-height activities, this video will help you better understand how a compact, efficient, and safe system works. 📌 Video content: • Explanation of the 4:1 and 5:1 mechanical advantage system • Simulation with real load • Demonstration of efficiency • Integration with descender and rope 🔧 Equipment used: JAG System – Petzl