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The Rigger’s Formula Card (RFC)


The Rigger’s Formula Card (RFC) is a laminated 4”x 13.75” 10 panel field reference card. The panels consist of 8 Rigger formulas for Center of Gravity (CG) calculations, Share of Load (SOL) calculations, Sling Tension calculations for symmetric and non-symmetric loads, and the Pythagorean Theorem to calculate Headroom Availability and Sling Leg Length. The RFC folds into a 2 ¾” x 4” size which fits into a front pocket or a wallet.

1-10: $5.00      11-20: $4.75      21-50: $4.50      51+: $4.25

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