10 Biggest Submarines in the World 1) World's biggest submarine class. It is a nuclear-powered submarine equipped with ballistic missiles. 2) Ranks as the world's second biggest submarine. It is a nuclear-powered missile carrying submarine serving the strategic naval forces of Russia. 3) The Ohio Class submarine is the third biggest in the world. 4) Delta Class, currently the fourth biggest submarine in the world. 5) It is the fifth biggest submarine in the world. The nuclear-powered ballistic missile submarine is in service with the UK's Royal Navy. 6) The sixth biggest submarine in the world. The nuclear ballistic missile submarine serves the French Navy and is part of the French Navy's nuclear deterrent strike force. 7) It includes ten submarines, of which nine are in the Russian Navy's service and one in the Indian Navy' service. 8) It is the world's eighth biggest submarine. 9) Operated by the US Navy is the ninth biggest submarine class in the world. 10) The Astute Class is the tenth biggest submarine in the world. It has a submerged displacement of 7,400t. The nuclear-powered submarine class is in service with the British Royal Navy. A submarine is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term most commonly refers to a large, crewed, autonomous vessel. It is also sometimes used historically or colloquially to refer to remotely operated vehicles and robots, as well as medium-sized or smaller vessels, such as the midget submarine and the wet sub. Used as an adjective in phrases such as submarine cable, "submarine" means "under the sea". The noun submarine evolved as a shortened form of submarine boat (and is often further shortened to sub). For reasons of naval tradition, submarines are usually referred to as "boats" rather than as "ships", regardless of their size. Although experimental submarines had been built before, submarine design took off during the 19th century, and they were adopted by several navies. Submarines were first widely used during World War I (1914--1918), and now figure in many navies large and small. Military usage includes attacking enemy surface ships (merchant and military), submarines, aircraft carrier protection, blockade running, ballistic missile submarines as part of a nuclear strike force, reconnaissance, conventional land attack (for example using a cruise missile), and covert insertion of special forces. Civilian uses for submarines include marine science, salvage, exploration and facility inspection/maintenance. Submarines can also be modified to perform more specialized functions such as search-and-rescue missions or undersea cable repair. Submarines are also used in tourism, and for undersea archaeology. Most large submarines consist of a cylindrical body with hemispherical (and/or conical) ends and a vertical structure, usually located amidships, which houses communications and sensing devices as well as periscopes. In modern submarines, this structure is the "sail" in American usage, and "fin" in European usage. A "conning tower" was a feature of earlier designs: a separate pressure hull above the main body of the boat that allowed the use of shorter periscopes. There is a propeller (or pump jet) at the rear, and various hydrodynamic control fins. Smaller, deep diving and specialty submarines may deviate significantly from this traditional layout. Submarines change the amount of water and air in their ballast tanks to decrease buoyancy for submerging or increase it for surfacing. Submarines have one of the widest ranges of types and capabilities of any vessel. They range from small autonomous examples and one or two-person vessels that operate for a few hours, to vessels that can remain submerged for six months—such as the Russian Typhoon class, the biggest submarines ever built. Submarines can work at greater depths than are survivable or practical for human divers. Modern deep-diving submarines derive from the bathyscaphe, which in turn evolved from the diving bell. Source: http://en.wikipedia.org/wiki/Submarine I, Sk Atar Ali hereby declare that all Images use to make this video is from Google Search www.google.com. I use Google Advanced Search to collect those images, usage rights: "free to use, share or modify, even commercially" section. Background Sound of this video I collect from YouTube Audio Library which is free to use. Thank you.
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