Recent Blogs
Three-quarter Lug Rig Mechanism: How It Works, Parts, Geometry Diagram and Tack Downhaul Tension
Three-quarter lug rig explained: how the yard sets, why the tack lands forward of the mast, and how dinghy builders size halyard and downhaul tension.
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.