What factors determine the proper use of a crane in rigging?

The proper use of a crane in rigging is fundamentally determined by load capacity, boom angle, and load radius. These factors are critical to ensure that the crane operates safely and effectively during lifting operations.

Load capacity refers to the maximum weight that the crane can safely lift. It's essential to know this limit to prevent exceeding the crane's capabilities, which could result in tipping or structural failures. Each crane has a specified load chart that indicates safe operating limits based on various configurations.

The boom angle is crucial as it affects the crane's lifting performance and stability. The angle at which the boom extends can change the crane's lifting capacity, with certain angles allowing for heavier lifts than others. It also influences how far the load can be suspended away from the crane's center of gravity.

Load radius is the distance from the center of rotation of the crane to the load being lifted. As the load radius increases, the effective lifting capacity of the crane decreases, making it essential to account for this when rigging a load. Operators must be aware of how the load radius impacts stability and stress on the crane, maintaining a secure and safe operation.

While operator experience and rigging materials do play roles in crane operations, the technical aspects highlighted in the correct answer are fundamental in