A steamship, often referred to as a steamer, is a type of steam-powered vessel, typically ocean-faring and seaworthy, that is propelled by one or more steam engines that typically move (turn) propellers or paddlewheels. The first steamships came into practical usage during the early 19th century; however, there were exceptions that came before. Steamships usually use the prefix designations of "PS" for paddle steamer or "SS" for screw steamer. As paddle steamers became less common, "SS" is incorrectly assumed by many to stand for "steamship". Ships powered by internal combustion engines use a prefix such as "MV" for motor vessel, so it is not correct to use "SS" for most modern vessels.
SS Savannah was an American hybrid sailing ship/sidewheel steamer built in 1818. She was the first steamship to cross the Atlantic Ocean, transiting mainly under sail power from May to June 1819. In spite of this historic voyage, the great space taken up by her large engine and its fuel at the expense of cargo, and the public's anxiety over embracing her revolutionary steam power, kept Savannah from being a commercial success as a steamship. Originally laid down as a sailing packet, she was, following a severe and unrelated reversal of the financial fortunes of her owners, converted back into a sailing ship shortly after returning from Europe.
The Pacific Mail Steamship Company was founded April 18, 1848, as a joint stock company under the laws of the State of New York by a group of New York City merchants. Incorporators included William H. Aspinwall, Edwin Bartlett, Henry Chauncey, Mr. Alsop, G.G. Howland and S.S. Howland.
Shaab Abu Nuhas, or Shaʽb Abu Nuħas, is a triangular-shaped coral reef northwest of Shadwan Island in the northern Red Sea off Hurghada.
SS President Coolidge was an American luxury ocean liner that was completed in 1931. She was operated by Dollar Steamship Lines until 1938, and then by American President Lines until 1941. She served as a troopship from December 1941 until October 1942, when she was sunk by mines in Espiritu Santo in the New Hebrides at the Espiritu Santo Naval Base, part of current-day Vanuatu. President Coolidge had a sister ship, SS President Hoover, completed in 1930 and lost when she ran aground in a typhoon in 1937.
SS City of Launceston was a 368 GRT steamship operated by the Launceston and Melbourne Steam Navigation Company from 1863, which had an early role in colonial steam shipping as the forerunner of the modern Bass Strait ferry service between Tasmania and Victoria. It was sunk in Port Phillip Bay after a collision with another ship on 19 November 1865.
SS Dunraven was built in Newcastle upon Tyne at the C. Mitchell and C. Iron Ship Builders and was launched on 14 December 1872. The ship was owned by a Mr W. Milburn. Powered by both sail and steam, she was planned for the route from Britain to Bombay.
SS Norwich City was a British cargo steamship. It was built in 1911 as Normanby, and renamed Norwich City in 1919. It was wrecked in the Pacific Ocean in 1929. For many years its wreck was a sea mark on the atoll of Nikumaroro. The wreck is now largely broken up.
SS Thesis was a steamship which was wrecked in October 1889 in the Sound of Mull, on Scotland's west coast. She is now a popular dive site with scuba divers.
The Glenlyon was a freighter built in 1893; it was sunk off the shore of Isle Royale in Lake Superior in 1924 and the remains are still on the lake bottom. The wreck was placed on the National Register of Historic Places in 1984.
America was a packet boat transporting passengers, mail, and packages between settlements along the North Shore of Lake Superior, an inland sea in central North America. Built in 1898, America sank in Washington Harbor off the shore of Isle Royale in 1928, where the hull still remains. The wreck was placed on the National Register of Historic Places in 1984.
SS Catterthun was a nineteenth-century cargo and passenger ship. It sank with considerable loss of life on the east coast of Australia in 1895.
Humphrys, Tennant and Dykes was a British engineering company based in Deptford, London, England.
SS Aquila was a cargo ship built in Britain in 1940 for Stavros Livanos' Trent Maritime Co Ltd. by William Gray & Company. An identical sister, Duke of Athens, was built for Trent at the same time.
SS Aberdeen was a British cargo liner completed in 1882. She was designed for service from London to Australia, and was the first ship to be successfully powered by a triple expansion steam engine. The triple expansion engine very quickly became the standard choice for the entire industry, with its predecessor, the two cylindered compound engine virtually ceasing to be built by 1885. The fuel economy achieved meant that steam propulsion was able to outcompete sail on all major commercial routes.
SS Arratoon Apcar was an iron-hulled sail and steam merchant ship that was built in Scotland in 1861 and wrecked off the coast of Florida in 1878. Her wreck in shallow water on Fowey Rocks is now a scuba diving site.
SS William C. Moreland was a 600-foot (180 m) long Great Lakes freighter that ran aground on Sawtooth Reef, Lake Superior on 18 October 1910, only a month after entering service. Visibility was poor due to the smoke from several forest fires, causing the William C. Moreland to ran full steam onto a reef. There were many attempts to salvage the ship, but eventually only the 278-foot (85 m) long stern was salvaged and was used to build the 580-foot (180 m) long Sir Trevor Dawson.
The following index is provided as an overview of and topical guide to Wikipedia's articles on recreational dive sites. The level of coverage may vary:
Recreational dive sites are specific places that recreational scuba divers go to enjoy the underwater environment or for training purposes. They include technical diving sites beyond the range generally accepted for recreational diving. In this context all diving done for recreational purposes is included. Professional diving tends to be done where the job is, and with the exception of diver training and leading groups of recreational divers, does not generally occur at specific sites chosen for their easy access, pleasant conditions or interesting features.
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