Wednesday 19 February 2014

History of submarines

The history of submarines covers the historical chronology and facts related to submarines, manned autonomous boats that operate underwater. It includes the history of "submersibles", which were designed primarily to operate on the surface, and midget submarines, but not unmanned underwater vehicles.

In the 19th century torpedoes were launched from surface "torpedo boats", but these were susceptible to gunfire, as they had to close to a short range to launch. There was a requirement for a "submarine torpedo boat", which was eventually shortened to "submarine".

Early submarines 


The concept of an underwater boat has roots deep in antiquity. Although there are images of men using hollow sticks to breathe underwater for hunting at the temples at Thebes, the first known military use occurred during the siege of Syracuse (about 413 BC), where divers were used to clear obstructions according to the History of the Peloponnesian War. At the siege of Tyre in 332 BC divers were again used by Alexander the Great, according to Aristotle. Later legends from Alexandria, Egypt, in the 12th century AD suggested that he had used a primitive submersible for reconnaissance missions. This seems to have been a form of diving bell, and was depicted in a 16th-century Islamic painting.

Although there were various plans for submersibles or submarines made during the Middle Ages, the Englishman William Bourne designed one of the first workable prototype submarine in 1578. His idea ultimately never got beyond the planning stage. The first submersible to be actually built in modern times was constructed in 1605 by Magnus Pegelius. It's fate was to become buried in mud.

The first successful submarine was built in 1620 by Cornelius Jacobszoon Drebbel, a Dutchman in the service of James I of England - it may have been based on Bourne's design. It was propelled by oars and is thought to have incorporated floats with tubes to allow air down to the rowers. The precise nature of the submarine type is a matter of some controversy; some claim that it was merely a bell towed by a boat. Two improved types were tested in the River Thames between 1620 and 1624
The first military submarine was Turtle in 1776, a hand-powered egg-shaped device designed by the American David Bushnell, to accommodate a single man. It was the first verified submarine capable of independent underwater operation and movement, and the first to use screws for propulsion.

In 1800, the French Navy built a human-powered submarine designed by Robert Fulton, the Nautilus. It also had a sail for use on the surface and so was the first known use of dual propulsion on a submarine. It proved capable of using mines to destroy two warships during demonstrations. The French eventually gave up with the experiment in 1804, as did the British, when Fulton later offered them the submarine design.

The Submarino HipopĆ³tamo was the first submarine in South America built and tested in Ecuador on September 18, 1837. It was designed by Jose Rodriguez Lavandera, who successfully crossed the Guayas River in Guayaquil accompanied by Jose Quevedo. Rodriguez Lavandera had enrolled in the Ecuadorian Navy in 1823, becoming a Lieutenant by 1830. The Hipopotamo crossed the Guayas on two more occasions, but it was then abandoned because of lack of funding and interest from the government

The first submarine that did not rely on human power for propulsion was the French Navy submarine Plongeur, launched in 1863, and equipped with a reciprocating engine using compressed air from 23 tanks at 180 psi.[ In practice, the submarine was virtually unmanageable underwater, with very poor speed and maneouverability 
The turn of century era marked a pivotal time in the development of submarines, with a number of important technologies making their debut, as well as the widespread adoption and fielding of submarines by a number of nations. Diesel Electric propulsion would become the dominant power system and instruments such as the periscope would become standardized. Batteries were used for running underwater and gasoline (petrol) or diesel engines were used on the surface and to recharge the batteries. Early boats used gasoline but this quickly gave way to kerosene, then diesel, because of reduced flammability. Effective tactics and weaponry were greatly refined in the early part of the century, and the submarine would prove to have a large impact on 20th century warfare.

The Irish inventor John Philip Holland built a model submarine in 1876 and a full scale one in 1878, followed by a number of unsuccessful ones. In 1896 he designed the Holland Type VI submarine. This vessel made use of internal combustion engine power on the surface and electric battery power for submerged operations. Launched on 17 May 1897 at Navy Lt. Lewis Nixon's Crescent Shipyard in Elizabeth, New Jersey, the Holland VI was purchased by the United States Navy on 11 April 1900, becoming the United States Navy's first commissioned submarine and renamed USS Holland.[20]

A prototype version of the A-class submarine (Fulton) was developed at Crescent Shipyard under the supervision of naval architect and shipbuilder from the United Kingdom, Arthur Leopold Busch, for the newly reorganized Electric Boat Company in 1900. The Fulton was never commissioned by the United States Navy and was sold to the Imperial Russian Navy in 1905. The submarines were built at two different shipyards on both coasts of the United States. In 1902, Holland received U.S. Patent 708,553 for his relentless pursuit to perfect the modern submarine craft. Many countries became interested in Holland's (weapons) product and purchased "the rights" to build them during this time period.

The Royal Navy commissioned the Holland-class submarine from Vickers, Barrow-in-Furness, under licence from the Holland Torpedo Boat Company during the years 1901 to 1903. Construction of the boats took longer than anticipated, with the first only ready for a diving trial at sea on 6 April 1902. Although the design had been purchased entire from the US company, the actual design used was an untested improved version of the original Holland design using a new 180 hp petrol engine.

Meanwhile, the French steam and electric Narval was commissioned in June 1900 and introduced the classic double-hull design, with a pressure hull inside the outer shell. These 200-ton ships had a range of over 100 miles (160 km) underwater. The French submarine Aigrette in 1904 further improved the concept by using a diesel rather than a gasoline engine for surface power. Large numbers of these submarines were built, with seventy-six completed before 1914.Although small numbers of submarines were built for the French Navy, Russian Navy and the US Navy, by 1914 the main submarine powers were the Kriegsmarine if Imperial Germany and the Royal Navy.

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