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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.
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A rowlock cut into the top strake of a boat. In some, largely older, strict terminologies, a rowlock is a U-shaped cut-out in the top strake of a boat (usually the wash-strake). In older texts, the U-shaped metal fitting may be called an "oar crutch", a usage which is largely obsolete. [4]: 213–217 [5]
Typical trim tabs on aileron, rudder and elevator. Trim tabs are small surfaces connected to the trailing edge of a larger control surface on a boat or aircraft, used to control the trim of the controls, i.e. to counteract hydro- or aerodynamic forces and stabilise the boat or aircraft in a particular desired attitude without the need for the operator to constantly apply a control force.
The stuffing box prevents water from entering the boat's hull. In many small fiberglass boats, for example, the stuffing box is mounted inboard near the point the shaft exits the hull. The "box" is a cylindrical assembly, typically of bronze, comprising a sleeve threaded on one end to accept adjusting and locking nuts.
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 ...