Recent Blogs
Leg-of-mutton Sail Mechanism Explained: How It Works, Parts, Uses, and Aerodynamic Force Diagram
How a leg-of-mutton sail works — geometry, driving force, rigging tradeoffs, and a worked example for sizing a small-craft mainsail by wind speed.
Lateen-rigged Felucca Mechanism Explained: Sail Diagram, Parts, Rig Geometry & Uses
Lateen-rigged felucca explained — how the triangular sail and slanted yard drive Nile cargo boats upwind, with rig geometry, drive force formulas and a worked...
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.
Lateen Rig Mechanism Explained: How the Triangular Sail Works, Parts, Geometry & Uses
How a Lateen Rig works, the geometry behind its upwind ability, and where you still see it today — from Nile feluccas to modern sailing...
Full-rigged Ship Mechanism Explained: Square Rig Sail Plan, Bracing Diagram, and Driving Force
How a full-rigged ship works — square sails on three or more masts, sail plan geometry, driving force calculations, and named examples from naval and...
Full Schooner Rig Explained: Mechanism, Diagram, Parts, Sail Plan and Driving Force Formula
Learn how a full schooner rig works, why fore-and-aft sails outperform square rig upwind, and how crews on vessels like Bluenose handle 4+ masts efficiently.