Knowledge behind every movement
Practical notes on circus equipment, safety, maintenance and production preparation.
Why Unrated Pulley Blocks Do Not Belong in Lifting Systems
A pulley block works as part of the wire-rope system and affects rope life, tracking and the safety of the complete installation. This article explains how a rated lifting block differs from an unrated pulley and what to check before use.
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Why We Use an Eightfold Safety Factor for Steel Wire Rope
Russian occupational-safety rules specify a factor of 8 for steel wire rope used to lift people or suspend occupied circus apparatus. This article explains the calculation, additional loads and the limits of that reserve.
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Circus Suspension Safety
What to check before installing circus suspension: attachment point, apparatus, rigging, lifting mechanisms, PPE, work area and rescue plan.
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