🔧 Working MA System 3:1 (Rescue Use) A 3:1 mechanical advantage (MA) system multiplies the pulling force by three. For every three units of rope pulled, the load moves one unit. 🔄 Why It’s Called a “Working” MA System • Allows resetting the system without losing progress. • The progress-capture device (Prusik) remains engaged while the haul team resets • Provides better control and increased safety during vertical or high-angle rescue operations. #rope #roperescue #roperescuetraining #ropetuto
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