How do you properly determine the load angle?

Determining the load angle is crucial in rigging operations as it directly affects the load's weight distribution and the capability of the lifting equipment. The proper method of determining the load angle is to measure the angle of the sling or chain in relation to the vertical line of the load. This measurement is critical because it allows the rigger to calculate the actual load being lifted on the rigging gear.

When the angle increases away from vertical, it introduces additional forces through the slings or chains, which can significantly elevate the effective load on the lifting equipment. By accurately measuring the load angle, riggers can ensure that the lifting equipment is not overloaded and operates within its safety limits.

Using visual observation can lead to imprecise measurements, leading to potential safety hazards. Manufacturer's specifications may provide guidelines, but they do not substitute for an accurate measurement of the current load angle in a specific rigging scenario. Consulting with an engineer may be necessary for complex lifts, but the immediate and practical determination of the load angle relies on direct measurement of the rigging system in use.