Rigging Capacity Quick Check

WLL at angle for shackles / slings / span sets / hoists with safety factor and pass/fail.

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Formula and source

WLL at angle: leg tension L = W / (n × sin(θ/2)) for basket / bridle slings; choker derate 0.75. WLL by component class (shackles per ASME B30.26; slings per ASME B30.9; span sets / hoists per manufacturer specs).

ASME B30.9 (Slings) + ASME B30.26 (Rigging Hardware) + ASME B30.16 (Overhead Underhung and Stationary Hoists) by name and section. Manufacturer hoist data sheets (CM Lodestar, Columbus McKinnon, Chain Master) by name.

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