Recent Blogs
Shears with Winch or Tackle Block: How It Works, Diagram, Formula & Rigging Uses Explained
How a shears lifting rig works — the geometry, the tackle block math, and how riggers use it to set heavy loads on bridges, masts,...
Four-Guy Mast Derrick: Gin Pole Motion and Guy-Force Calculator
Explore a mast supported by four ground guys, with a hoist at its head. Compare one guy’s tension and anchor uplift for an entered horizontal...