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2. Kingston valve - Wikipedia

   en.wikipedia.org/wiki/Kingston_valve

   Kingston valves of the Argonaute can be seen on her keel. A Kingston valve is a type of valve fitted in the bottom of a ship's plating [1] that connects the sea to the ship's piping and storage tanks. A Kingston valve is a type of seacock. [1] It is arranged so that, under normal operating conditions, sea pressure keeps the valve closed. [2]

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. 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 ...

5. Poppet valve - Wikipedia

   en.wikipedia.org/wiki/Poppet_valve

   Poppet valve. A poppet valve (also sometimes called mushroom valve[ 1]) is a valve typically used to control the timing and quantity of petrol (gas) or vapour flow into or out of an engine, but with many other applications. It consists of a hole or open-ended chamber, usually round or oval in cross-section, and a plug, usually a disk shape on ...

6. List of lost United States submarines - Wikipedia

   en.wikipedia.org/wiki/List_of_lost_United_States...

   Fifty-two submarines of the United States Navy were lost during World War II. [ 5] Two – Dorado (SS-248) and Seawolf (SS-197) – were lost to friendly fire (though there is speculation that the Dorado may have struck a German mine), at least three more – Tulibee, Tang, and Grunion – to defective torpedoes, and six to accident or grounding.

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 ...