Rope Grab Test Report Grant Prattley, Lindsay Main and Andrew Welsh, New Zealand Land Search and Rescue, February 2001. Many rope grab devices are used by the rescue technician for a variety of functions in a rope rescue system. This study focuses on rope grabs used in a slow pull situation as used in a rescue hauling system to […]
Snow Anchor Report Snow anchor testing for a variety of common anchors A report by Don Bogie, 2005. The strength of snow anchors is dependent on a combination of the strength of the snow in compression and shear, the strength of the materials the anchor is made, the strength and placement of the attachment system, and the mode […]
An introduction to Pulley Systems: Pulley system setup Types of pulley systems – Simple, Compound and Complex Mechanical advantage – for simple systems Pulley progression – 3:1-5:1 Put your first name and email address below and Ill send you a 20-page pdf.