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Samuel Plimsoll. In the Middle Ages, the Venetian Republic, [4] the Republic of Genoa and the Hanseatic League required ships to show a load line. In the case of Venice this was a cross marked on the side of the ship, [5] [6] and of Genoa three horizontal lines.
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.
Samuel Plimsoll (10 February 1824 – 3 June 1898) was a British politician and social reformer, now best remembered for having devised the Plimsoll line (a line on a ship's hull indicating the maximum safe draught, and therefore the minimum freeboard for the vessel in various operating conditions). [1]
Plimsoll may refer to: Plimsoll (surname) The plimsoll symbol (⦵ or o) that is used as a superscript in the notation of thermodynamics to indicate a specific arbitrarily chosen non-zero reference point ("standard state"). Plimsoll line or Plimsoll mark on a ship's hull, named after Samuel Plimsoll
Lightweight displacement – LWD – The weight or mass of the ship excluding cargo, fuel, ballast, stores, passengers, and crew, but with water in the boilers to steaming level. Loadline displacement – The weight or mass of the ship loaded to the load line or plimsoll mark. Deadweight tonnage (DWT) is a measure of how much weight a ship can ...
Anyone who signed on to such a ship for a voyage and, upon realizing the danger, chose to leave the ship, could end up in jail. Plimsoll, a Member of Parliament, realised the problem and engaged some engineers to derive a fairly simple formula to determine the position of a line on the side of any specific ship's hull which, when it reached the ...
Plimsoll line. Also National Load Line. A special marking, positioned amidships, that indicates the draft of the vessel and the legal limit to which the vessel may be loaded for specific water types and temperatures. plotting room See transmitting station. pocket battleship
A hull is the watertight body of a ship, boat, submarine, or flying boat. The hull may open at the top (such as a dinghy), or it may be fully or partially covered with a deck. Atop the deck may be a deckhouse and other superstructures, such as a funnel, derrick, or mast. The line where the hull meets the water surface is called the waterline.