Whether you find yourself in the backcountry on a hiking trip, working on a home project, or standing in the wake of a natural disaster, you may encounter the need to move something heavier than you can safely move by yourself. In those situations, you can apply a few pieces of lightweight and relatively inexpensive equipment to take off some of the load.
Recalling a little grade school science, there are six types of simple machines: lever, wedge, screw, inclined plane, wheel and axle, and pulley. From this list, you can employ a pulley in the aforementioned scenarios to lighten your workload by half or more by utilizing mechanical advantage. Simply put, rope-based mechanical advantage is using ropes and pulleys to leverage force.
A haul system is the utilization of…
