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  2. Virginia-class submarine - Wikipedia

    en.wikipedia.org/wiki/Virginia-class_submarine

    Virginia. -class submarine. Only limited by food and maintenance requirements. The Virginia class, or the SSN-774 class, is the newest class of nuclear-powered cruise missile fast attack submarines in service with the United States Navy. The class is designed for a broad spectrum of open-ocean and littoral missions, including anti-submarine ...

  3. USS Thresher (SSN-593) - Wikipedia

    en.wikipedia.org/wiki/USS_Thresher_(SSN-593)

    USS. Thresher. (SSN-593) USS Thresher (SSN-593) was the lead boat of her class of nuclear-powered attack submarines in the United States Navy. She was the U.S. Navy's second submarine to be named after the thresher shark . On 10 April 1963, Thresher sank during deep-diving tests about 350 km (220 mi) east of Cape Cod, Massachusetts, killing all ...

  4. Check valve - Wikipedia

    en.wikipedia.org/wiki/Check_valve

    Tilting-disc inconel check valve Check valve symbol on piping and instrumentation diagrams. The arrow shows the flow direction. Vertical lift check valve. A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. [1]

  5. Saddle tank (submarine) - Wikipedia

    en.wikipedia.org/wiki/Saddle_tank_(submarine)

    Saddle tank (submarine) The German submarine U-995 at the German Navy memorial at Laboe, showing the starboard saddle tank as the elongated bulge along the side of the submarine. Saddle tanks are a type of ballast tank configuration fitted to submarines . Saddle tanks are fitted in pairs external to the pressure hull, one on each side, in a ...

  6. Columbia-class submarine - Wikipedia

    en.wikipedia.org/wiki/Columbia-class_submarine

    16 × Trident D5 [ 5] and torpedo tubes. The upcoming Columbia-class (formerly known as the Ohio Replacement Submarine and SSBN-X Future Follow-on Submarine) nuclear -powered ballistic missile submarines of the United States Navy are designed to replace the Ohio class. [ 7] Construction of the first vessel began on 1 October 2020. [ 8]

  7. Submarines in the United States Navy - Wikipedia

    en.wikipedia.org/wiki/Submarines_in_the_United...

    Submarines in the United States Navy. There are three major types of submarines in the United States Navy: ballistic missile submarines, attack submarines, and cruise missile submarines. All submarines currently in the U.S. Navy are nuclear-powered. Ballistic missile submarines have a single strategic mission of carrying nuclear submarine ...

  8. Subsea valves - Wikipedia

    en.wikipedia.org/wiki/Subsea_valves

    Subsea valves are used to isolate or control the flow of material through an undersea pipeline (submarine pipeline) or other apparatus.Most commonly used to transport oil and gas, they are designed to function in a sub-marine environment, withstanding the effects of raised external pressure, salt-water corrosion, and bubbles or debris in the material carried.

  9. Los Angeles-class submarine - Wikipedia

    en.wikipedia.org/wiki/Los_Angeles-class_submarine

    The Los Angeles class of submarines are nuclear-powered fast attack submarines ( SSN) in service with the United States Navy. Also known as the 688 class (pronounced "six-eighty-eight") after the hull number of lead vessel USS Los Angeles (SSN-688), 62 were built from 1972 to 1996, the latter 23 to an improved 688i standard.