What equipment is primarily used in the construction of MA systems?

The construction of MA (Mechanical Advantage) systems fundamentally relies on pulleys, as they are essential for multiplying force and improving the efficiency of a rescue operation. Pulleys facilitate the redirection of rope, allowing rescuers to lift or move heavy loads with less effort than would be required if lifting directly. By utilizing a specific arrangement of pulleys, such as a simple pulley system or more complex configurations, the mechanical advantage provided can significantly reduce the amount of force needed for lifting tasks.

While ropes, descenders, and anchors are critical components of overall rope rescue setups, pulleys specifically serve the purpose of creating the mechanical advantage that makes it feasible to lift or maneuver heavy or difficult-to-handle loads in rescue scenarios. Therefore, the emphasis on pulleys highlights their role in enhancing the mechanical efficiency of the system.