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In sailing and boating, a vessel's freeboard is the distance from the waterline to the upper deck level, measured at the lowest point of sheer where water can enter the boat or ship. [1] In commercial vessels, the latter criterion measured relative to the ship's load line, regardless of deck arrangements, is the mandated and regulated meaning. [2]
Load line mark and additional load lines on the hull of a ship Load lines are indicated by special markings on the hull . The marking for the main load line, the summer load line, is called load line mark or Plimsoll mark (positioned amidships ), the marks for other conditions are named after the condition suffixed with "load line" (e.g. winter ...
The assignment of freeboard (and therefore applicable load line) is dependent on the: type of ship [1] structure of the ship [1] areas and seasons the ship trades in, eg winter North Atlantic [1] other safety measures for special conditions, including certain cargoes. [1] Ships are also categorised as either a type A ship or a type B ship.
The French Navy in particular promoted the design, advocating it to reduce the weight of the superstructure and increase seaworthiness by creating greater freeboard. [3] A French yard was contracted to construct the pre-dreadnought battleship Tsesarevich along the lines of France's Jauréguiberry.
Waterline of a ship. The mark above the waterline indicates the Plimsoll line. The waterline is the line where the hull of a ship meets the surface of the water.. A waterline can also refer to any line on a ship's hull that is parallel to the water's surface when the ship is afloat in a level trimmed position.
Graphical representation of the dimensions used to describe a ship. Length between perpendiculars (often abbreviated as p/p, p.p., pp, LPP, LBP or Length BPP) is the length of a ship along the summer load line from the forward surface of the stem, or main bow perpendicular member, to the after surface of the sternpost, or main stern perpendicular member.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Freeboard_(ship)&oldid=302763000"This page was last edited on 18 July 2009, at 12:35
The design called for the ship to have a low freeboard, and Coles' figures estimated it at 8 feet (2.4 m). Both the Controller and the Chief Constructor Edward James Reed raised serious concerns. Robinson noted that the low freeboard could cause flooding issues on the gun deck , and Reed criticised the design in 1866 both for being too heavy ...