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2. 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.

3. 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 ...

4. SUBSAFE - Wikipedia

   en.wikipedia.org/wiki/SUBSAFE

   The Submarine Safety Program ( SUBSAFE) is a quality assurance program of the United States Navy designed to maintain the safety of its submarine fleet, specifically, to provide maximum reasonable assurance that submarine hulls will stay watertight, and that they can recover from unanticipated flooding. SUBSAFE covers all systems exposed to sea ...

5. Vent (submarine) - Wikipedia

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

   Vent (submarine) The vents of the Redoutable are under the casing. The square openings in the casing are limber holes to facilitate draining the superstructure. In submarine technology a vent is a valve fitted to the top of a submarine 's ballast tanks to let air escape from the top of the ballast tank and be replaced by water entering through ...

6. For Americans freed from Russia, the path to recovery starts ...

   www.aol.com/news/americans-freed-russia-path...

   “For one year they kept us in a cell we called ‘the submarine’ because it was the size of a closet and there was no window, no fresh air, no running water, nothing,” he said. “And all ...

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. USS Parker (DD-48) - Wikipedia

   en.wikipedia.org/wiki/USS_Parker_(DD-48)

   USS Parker (Destroyer No. 48/DD-48) was an Aylwin-class destroyer built for the United States Navy prior to the American entry into World War I.The ship was the first U.S. Navy vessel named in honor of Foxhall A. Parker, Jr., a U.S. Navy officer who served in the American Civil War, and as Superintendent of United States Naval Academy.

9. List of submarine classes of the United States Navy - Wikipedia

   en.wikipedia.org/wiki/List_of_submarine_classes...

   Prototype "fleet submarines"—submarines fast enough (21 knots (11 m/s)) to travel with battleships. Twice the size of any concurrent or past U.S. submarine. A poor tandem engine design caused the boats to be decommissioned by 1923 and scrapped in 1930.