Provides free PDFs on basic rigging safety and math.
Where SAF = 1 / Sine(Angle)
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Before a crane even hooks onto a load, the rigging engineer must ensure the ground can support the crane's weight plus the load. GBP = (Crane Weight + Load Weight) / (Outrigger Pad Area)
This guide breaks down the fundamental calculations every rigging engineer needs, providing a "digital handbook" of the math that keeps heavy lifts stable. 1. Estimating Load Weight
A load will always shift until its is directly under the hook. To avoid "load swing," you must calculate the CoG for unequal loads. The Formula: