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Head – The head is the upper edge of the sail, and is attached at the throat and peak to a gaff, yard, or sprit. [7] For a triangular sail the head refers to the topmost corner. Leech – The aft (back) edge of a fore-and-aft sail is called the leech (also spelled leach). [8] The leech is either side edge of a symmetrical sail—triangular or ...
[6] [9] On a given sail, the net aerodynamic force on the sail is located approximately at the maximum draught intersecting the camber of the sail and passing through a plane intersecting the centre of effort, normal to the leading edge (luff), roughly perpendicular to the chord of the sail (a straight line between the leading edge (luff) and ...
Edges – The top of all sails is called the head, the leading edge is called the luff on fore-and-aft sails [37] and on windward leech symmetrical sails, the trailing edge is the leech, and the bottom edge is the foot. The head is attached at the throat and peak to a gaff, yard, or sprit. [38] For a triangular sail the head refers to the ...
Reconstruction of a 19th-century naval architect's office, Aberdeen Maritime Museum General Course of Study leading to Naval Architecture degree Naval architecture, or naval engineering, is an engineering discipline incorporating elements of mechanical, electrical, electronic, software and safety engineering as applied to the engineering design process, shipbuilding, maintenance, and operation ...
A comparison of clinker and carvel construction. Carvel frames are much heavier than clinker ribs.. Carvel built or carvel planking is a method of boat building in which hull planks are laid edge to edge and fastened to a robust frame, thereby forming a smooth surface.
A mast-aft rig is a sailboat sail-plan that uses a single mast set in the aft half of the hull. The mast supports fore-sails that may consist of a single jib, multiple staysails, or a crab claw sail. The mainsail is either small or completely absent. Mast-aft rigs are uncommon, but are found on a few custom, and production sailboats. [1]
"Luffing" can also be used to slow or stop a sailboat in a controlled manner. To offset luffing at the top of the sail one should move the sail "lead" forward until the point where the "telltales" break evenly. Luffing is also a process of power kites when they stall and the front (or leading) edge falls downwards.
Boat building is the design and construction of boats (instead of the larger ships) — and their on-board systems. This includes at minimum the construction of a hull , with any necessary propulsion, mechanical, navigation, safety and other service systems as the craft requires.