Recent Blogs
Cutter Sailing Rig: Sail-area and Displacement Ratios
Explore a traditional cutter rig, calculate conventional sail-area/displacement and displacement/length ratios, and compare a chosen headsail-area allocation.
Sliding Gunter Rig Mechanism: How It Works, Parts, Formula, and Uses Explained
See a sliding-gunter upper spar rise alongside its mast. Compare mast length, yard length and overlap to calculate the fully raised stack height.
Brigantine Sailing Rig Explained: How the Two-Masted Square and Fore-and-Aft Mechanism Works
Explore a brigantine’s square foremast, gaff mainsail and headsails, then compare sail area and displacement using the dimensionless SA/D ratio.
Barkentine Sail Plan Mechanism: How a Three-Mast Square-and-Fore-Aft Rig Works
Barkentine sailing rig explained — how the square-rigged foremast and fore-and-aft main and mizzen work together for shorthanded ocean trade and sail training.
Bark (Barque) Sailing Rig: Diagram & Sail Area Calculator
Explore the bark or barque sailing rig: square sails on the fore and main masts, a fore-and-aft mizzen, and an interactive sail-area calculator.