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Calcimator

Rigging Load Calculator

Safe working load for aerial performance rigging points.

Inputs

Results

Design load (kg)

260

Load per leg (kg)

260

Static load (kg)130
Static load (lbs)286.6
Required MBS (kg)2,080
Required MBS (lbs)4,586
Per-leg MBS (kg)2,080
Wire rope dia (mm)3
Min Breaking Strength N20,404.8
How to Use This Calculator
  1. Enter the dead load (kg) — weight of all fixtures and hardware on the rigging point.
  2. Input the live load (kg) — performer body weight for aerial acts (0 for scenery only).
  3. Set the dynamic factor (1 = static, 2 = moderate aerial, 5+ for drop catches).
  4. Enter the safety factor — minimum 5:1 for scenery, 8:1 to 10:1 for life-safety aerial.
  5. Review Design Load (kg), Required WLL (Working Load Limit), and safety rating for your hardware.
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