Recent Blogs
Square or Lug Sail Mechanism: How It Works, Parts, Diagram and Sailing Uses Explained
How a square or lug sail works, with rigging geometry, drive force formulas, and a worked example for traditional boatbuilders and sail trainers.
Split Lug or Square Sail: Mechanism, Sling Point Diagram, and Rig Parts Explained
Split Lug and Square Sail rigs explained — geometry, sail forces, and trim numbers for small craft, training boats, and traditional workboat restorations.
Brigantine Sailing Rig Explained: How the Two-Masted Square and Fore-and-Aft Mechanism Works
Brigantine sailing rig explained: how the two-masted square-and-fore-and-aft sail plan works, why crews picked it, and how to size it for sail-training vessels.