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The top of all sails is called the head, the leading edge is called the luff, the trailing edge is the leech, and the bottom edge is the foot. 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.
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.
Sail detail at the tack (lower corner of the leading edge) of a mainsail, showing bolt ropes in the luff and foot.Bolt ropes may extend to other parts of a sail, as well.. A bolt rope [1] (Variants: "bolt-rope" and "boltrope", French: ralingue, Spanish: relinga, [2] Old Norse: *rár-línk, comprising rár genitive of rá "rope" and línk "edge of a sail "), is the rope that is sewn at the ...
A staysail (pronounced stays'l) is a fore-and-aft sail whose leading edge is hanked to a stay. A headsail is any sail forward of the foremost mast on a sailing boat. It is usually a fore-and-aft sail, but on older sailing ships would include a square-sail on a bowsprit. [11]
The gunwale of an undecked boat. The gunwale (/ ˈ ɡ ʌ n əl /) is the top edge of the hull of a ship or boat. [1]Originally the structure was the "gun wale" on a sailing warship, a horizontal reinforcing band added at and above the level of a gun deck to offset the stresses created by firing artillery.
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.
[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 ...