Aboard Ships and Large Boats
As stated above, superstructure consists of the parts of the ship or a boat, including sailboats, fishing boats, passenger ships, and submarines, that project above her main deck. This does not usually include its masts or any armament turrets. Note that in modern times, turrets do not always carry naval artillery, but they can also carry missile launchers and/or antisubmarine warfare weapons.
The size of a watercraft's superstructure can have many implications in the performance of ships and boats, since these structures can alter their structural rigidity, their displacements, or both. These can be detrimental to any vessel’s performance if they are taken into consideration incorrectly.
The height and the weight of superstructure on board a ship or a boat also affects the amount of freeboard that such a vessel requires along its sides, down to her waterline. In broad terms, the more and heavier superstructure that a ship possesses (as a fraction of her length), the less the freeboard that is needed.
Read more about this topic: Superstructure
Famous quotes containing the words aboard, ships, large and/or boats:
“Our Lamaze instructor . . . assured our class . . . that our cervix muscles would become “naturally numb” as they swelled and stretched, and deep breathing would turn the final explosions of pain into “manageable discomfort.” This descriptions turned out to be as accurate as, say a steward advising passengers aboard the Titanic to prepare for a brisk but bracing swim.”
—Mary Kay Blakely (20th century)
“I saw three ships come sailing by,
Come sailing by, come sailing by,
I saw three ships come sailing by,
On Christmas Day in the morning.”
—Unknown. As I Sat on a Sunny Bank. . .
Oxford Book of Light Verse, The. W. H. Auden, ed. (1938)
“No man, however benevolent, liberal, and wise, can use a large fortune so that it will do half as much good in the world as it would if it were divided into moderate sums and in the hands of workmen who had earned it by industry and frugality. The piling up of estates often does great and conspicuous good.... But no man does with accumulated wealth so much good as the same amount would do in many hands.”
—Rutherford Birchard Hayes (1822–1893)
“Away down the river,
A hundred miles or more,
Other little children
Shall bring my boats ashore.”
—Robert Louis Stevenson (1850–1894)