Slings & Bridles

The Ultimate Rigging Math Tool for Theatrical & Arena Riggers
Designed by and for working riggers, this app delivers fast, accurate solutions to the everyday load-calculation challenges found in theatres, touring productions, and arena environments. Whether you’re hanging a simple 2-leg bridle or building a complex 3- or 4-leg system, the app gives you clean numbers, clear geometry, and visuals that make the math unmistakable.
Calculate sling tensions, load paths, and bridle geometry in seconds. The app automatically solves 2-leg, 3-leg, and 4-leg bridles with precise vector math—and handles inverted load rigging commonly used in arenas with powerful 3-point solutions. A built-in 3D visualizer helps you “see” the system as you build it, making it easier to catch bad angles or overloaded legs before they become a problem.
Perfect for flymen, steel climbers, arena riggers, production electricians, and anyone who spends their day under load.
Key Features
• Fast calculations for 2-, 3-, and 4-leg bridles
• Inverted load rigging solver ideal for arena 3-point systems
• 3D visualization of geometry and load distribution
• Clear tension readouts and angle diagnostics
• Intuitive interface designed for real working conditions
Whether you’re advancing a show, verifying a ground-rig design, or double-checking the math in the air, this app gives you confidence, clarity, and speed—right in your pocket.
Disclaimer
This application is provided for informational purposes only. All calculations, diagrams, and outputs are approximate and may not reflect the conditions, loads, or safety requirements of any real-world situation. The developer makes no guarantees regarding the accuracy, completeness, or suitability of the results for any specific use.
Use of this application does not replace the judgment of a qualified rigger, engineer, or safety professional. Always refer to applicable codes, regulations, manufacturer specifications, and professional guidance before performing any lifting, rigging, or load-bearing operations.
By using this application, you acknowledge and agree that the developer assumes no responsibility or liability for any errors, omissions, misuse, or consequences arising from the use of the app or the data it provides.