Mechanical Advantages - Pulley Systems #1 & 2, V 1.21: Pulley Systems Explained and RESCUE

This book explains a good majority of the key components, uses, and applications in rescue, and communicates it in simple easy to understand way. This 100 plus page book will explain the difference between simple pulley systems, complex pulleys systems, and compound pulley systems. Also it addresses concepts and ideas about mechanical advantages in general, an many associated things like Progress Capture Devices, Prusiks, Litter Raising and lowering commands, some tips about gaining the most from your systems, and a way to determine the force a pulley system will provide, and its Mechanical Pulley Advantage.