What may happen to a properly rigged load that is lifted off the ground, unless boom deflection is taken into account?

When a load is lifted off the ground by a crane, it's important to consider the effect of boom deflection, which is the natural bending or sagging of the boom under load due to gravitational forces. If this deflection is not accounted for, the load can shift and swing out away from the crane as the boom bends. This movement occurs because the center of gravity of the load may change as the boom flexes.

In practical applications, if the load swings out, it can create a dangerous situation, potentially leading to accidents or injuries. Proper rigging techniques and careful calculations regarding boom angles and deflection help ensure that the load remains stable and predictable during lifting operations. Ignoring these factors can lead to unsafe maneuvering and loss of control over the lifted load, which is why understanding boom deflection is critical for crane operation.