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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.
The whole category of monitors took its name from the first of these, USS Monitor, designed in 1861 by John Ericsson. They were low-freeboard, steam-powered ironclad vessels, with one or two rotating armored turrets, rather than the traditional broadside of guns. The low freeboard meant that these ships were unsuitable for ocean-going duties ...
Category: Ships by year. 19 languages. ... Sailboat type designs by year (14 C) 0–9. 1672 ships (1 P) 1740 ships (12 P) 1741 ships (19 P) 1742 ships (9 P) 1743 ...
In the 1860s and 1870s several nations built monitors that were used for coastal defense and took the name monitor as a type of ship. Those that were directly modelled on Monitor were low-freeboard, mastless, steam-powered vessels with one or two rotating, armoured turrets. The low freeboard meant that these ships were unsuitable for ocean ...
The ships' low freeboard greatly hindered the use of the main battery in rough weather conditions, because the deck would become awash. Also, because the ship lacked a counterweight to offset the weight of the gun barrels, the ship would list in the direction the guns were aimed. This reduced the maximum arc of elevation (and thus range) to ...
The Trafalgars were the penultimate low-freeboard battleships built for the Royal Navy. This design had been favoured for several years because it reduced the size of the target that the ships presented to enemy guns in battle, and because the smaller hull area allowed thicker armour.
The Kearsarge-class was a group of two pre-dreadnought battleships built for the United States Navy in the 1890s. The two ships—USS Kearsarge and USS Kentucky—represented a compromise between two preceding battleship designs, the low-freeboard Indiana class and the high-freeboard USS Iowa, though their design also incorporated several improvements.
The trans-Atlantic concept was changed to a coastal defence ship, so a very low freeboard of 4 feet 6 inches (1.37 metres) was specified. The loss of HMS Captain in September 1871 led to concerns about the stability of turret ships, and a special committee was set up to determine their seaworthiness.