Three-to-one systems are often called "z-rigs" due to their shape. Don't, however, confuse the 3:1 with the similarly-shaped 2:1 with a COD pulley or a 2:1 piggyback system. The following illustrations show 3:1 systems without and with a COD pulley. Some rescuers find it challenging to remember how to rig a 3:1 system.

A Z-Drag or Z-Rig is an arrangement of lines and pulleys, effectively forming a block and tackle, that is commonly used in rescue situations. [1] The basic arrangement results in pulling the hauling end 3 times the distance the load is moved, providing a …

2018年1月21日 · The Z-Rig is reasonably easy to rig, is easy to add a progress capture device and provides an appropriate amount of mechanical advantage to raise one or two people. This system is paramount to a rescuer’s arsenal and will unlock true stroke advantage with minimal rope consumption while offering a multitude of benefits both vertically and ...

2015年10月15日 · One of the most commonly used systems is the 3:1, often referred to as the Z-Rig for the “Z”-like shape it forms. This simple hauling system can be quickly assembled and deployed to haul a stokes...

Simple M/A systems can be defined as systems with all the moving pulleys moving in the same direction and at the same speed as the load. A few simple pulley systems are most frequently used. The most common is a 3:1 mechanical advantage, sometimes called a “Z” rig because when rigged, the rope looks like a “Z”. In theory, a 100-pound ...

2020年4月1日 · This video looks specifically at the Z-Rig system, a theoretical 3:1 mechanical advantage system used in rescue hauls. There are a number of items of equipment and different methods that can be...

This Rescue Kit includes the water-compatible equipment necessary for setting up a 3:1 z-rig mechanical advantage system for river rescue incidents. Compact ProTech Pulleys minimize bulk and weight, and an included Rappel 8 allows for controlled lowering.

The CMC River Rescue Z-Rig Kit includes the water-compatible equipment necessary for setting up a 3:1 Z-Rig mechanical advantage system for river rescue incidents. Compact ProTech Pulleys minimize bulk and weight, and an included Rappel 8 allows for controlled lowering.

Z-Rig is an open air computer case for up to 6 video carss and 2 Power supplys, for Litecoin Mining or GPU Rendering. 6 PCIe-Riser are already integrated. An ATX-Case for: 6x High-End Video Cards

Z-rig (pronounced "zed-rig"), 3:1 mechanical advantage system, 3:1 pulley system, block and tackle ("Z-drag" for pulling objects in USA) Z-rig being used to tension a Tyrolean traverse. A Retzl Rig is being used to capture the progress, and acts as a pulley.