Recent Blogs
Leg-of-mutton Sail Mechanism Explained: How It Works, Parts, Uses, and Aerodynamic Force Diagram
A historical leg-of-mutton sail profile with a first-order lift-only calculator using triangular area, wind speed, entered lift coefficient and declared mathematical axes.
Topsail Schooner: Historical Rig and Sail-area Comparison
Explore a square-topsail schooner rig and compare entered sail area with displacement. Also convert weight and compare area and angle inputs; no sailing performance is...
Club Topsail Rig Mechanism Explained: Parts, Diagram, Sail Area Formula and Worked Example
Explore a triangular club topsail above a gaff. Calculate flat cloth area, leech length and separate spar extensions; these dimensions do not establish rig strength...