Recent Blogs
Stevedore Knot Mechanism Explained: How It Works, Parts, Uses, and Sheave Jam Calculator
Learn how the Stevedore Knot works as a stopper knot for sailing rigs and load handling, with sizing rules, worked examples, and comparison to figure-8...
Square or Reef Knot Mechanism: How It Works, Diagram, Parts, Uses and Strength Formula Explained
How the Square or Reef Knot works, why sailors use it for reefing sails, where it fails, and how to tie it correctly for binding...
Slip Knot Mechanism Explained: How It Works, Parts, Uses, and Quick-Release Diagram
Learn how a Slip Knot works, why riggers and arborists trust it for quick-release loads, and how to size it correctly with a worked example.
Sheet Bend and Toggle Mechanism: How It Works, Diagram, Parts, Uses and Safe Load Formula
Sheet Bend and Toggle explained — how this quick-release rope joint works, why riggers and sailors use it, with worked load math and failure diagnostics.
Figure-Eight Knot: Forms and Assumed Strength Comparison | FIRGELLI
Compare assumed rope-strength retention and load arithmetic. Learn the distinction between figure-eight forms and why the outputs do not certify a rope system.
Bowline Knot Mechanism Explained: Parts, Diagram, Strength Formula, and Real-World Uses
Trace a bowline’s continuous rope route, nipping loop and collar. Compare assumed retained breaking strength and a chosen tail allowance, separately from load ratings.