Mechanisms — sail plan

Recent Blogs

Schooner Rig diagram
Schooner Rig Explained: How a Two-Masted Fore-and-Aft Sail Plan Works, Parts and Drive Force
Schooner rig explained — how the fore-and-aft two-mast layout drives offshore sail-training vessels, with sail-area math, worked example, and trade-offs.
Topsail Schooner diagram
Topsail Schooner Mechanism Explained: Sail Plan, Rigging Parts, and SA/D Calculation
How a Topsail Schooner works — fore-and-aft rig with square topsails on the foremast, sail plan math, real vessels like the Pride of Baltimore II,...
Sloop Yawl diagram
Sloop Yawl Explained: How the Two Rigs Work, Key Parts, Lead Balance and Real-World Uses
Sloop and yawl rigs explained — sail plan geometry, balance, helm trim, and how naval architects size them for cruising and offshore sailing.
Sliding Gunter diagram
Sliding Gunter Rig Mechanism: How It Works, Parts, Formula, and Uses Explained
Learn how the Sliding Gunter rig works, why sailors use it on dinghies and tenders, and how to size the yard, halyard and traveller for...
Skiff Yawl Rig diagram
Skiff Yawl Rig Explained: How It Works, Parts, Sail Balance Formula and Diagram
Skiff yawl rig explained — how the split mainsail-and-mizzen plan works on small boats, sail-area balance math, and named examples from working tenders to dinghy...
Jib Topsail Sloop diagram
Jib Topsail Sloop Mechanism Explained: Rig Parts, How It Works, Diagram, and Drive-Force Formula
Jib topsail sloop rig explained — how the flying jib above the topmast adds drive in light air, sizing math, trim limits, and real yacht...
Hermaphrodite Brig diagram
Hermaphrodite Brig Mechanism Explained: Sail Plan, Rigging Diagram, and Helm Balance
Hermaphrodite brig explained — square-rigged foremast, fore-and-aft mainmast. Learn rig mechanics, sail balance, and historical use in coastal trade.
Full-rigged Ship diagram
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...
Club Topsail Rig diagram
Club Topsail Rig Mechanism Explained: Parts, Diagram, Sail Area Formula and Worked Example
Club topsail rig explained — how the spar, sheet and halyard work above the gaff, why traditional yachts use it, and how to size sail...
Barkentine diagram
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.