Rigging tension calculator

Tension per leg = load ÷ (2 × cos(angle / 2))

Load (lb) 300

Angle (°) 45°

10°90° (guideline)120° (100% load/leg)170°

Per-leg tension

212 lb

% of load per leg

71%

Multiplier vs vertical

1.41×

Total anchor pull

300 lb

Practical guidelines

Avoid wide angles whenever possible.
Keep the critical (field) angle at 90° or less when conditions allow.
At 90°, each leg carries approximately 71% of the load.
At 120°, each anchor leg carries 100% of the load.
Beyond 120°, leg tension exceeds the total suspended load.