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...
Overhand Knot: Declared Loose-Diagram Geometry
Explore a loose overhand-knot projection and trace its centerline. Adjust drawing scale, tails and sampling resolution without predicting rope performance.
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.
Double Knot: Loose Double-overhand Diagram and Rope-length Calculator
Inspect a loose double-overhand rope knot in a rotating 3D diagram. Adjust rope diameter and proportions, and calculate the displayed centerline length.