Naval Reactors History Database (nrhdb)
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 Title:  Launch of the NR-1 submersible research vehicle Add
 Summary:  The NR-1 nuclear submarine slides down the building ways at Electric Boat (division of General Dynamics). NR-1 was used as a deep sea exploration and recovery vehicle. 
 Source:  http://www.navsource.org/archives/08/08547.htm 
 Date:  25 January 1969 
 Subject(s):  NR-1 | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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 Title:  Launch of the USS Narwhal at Electric Boat Add
 Summary:  The launch of the USS Narwhal, which was powered by the S5G natural circulation reactor. The Narwhal was built concurrently with the design, construction, and operation of the S5G prototype reactor at the Idaho National Laboratory. She was commissioned in June of 1969. As historian Richard Duncan notes, "although the natural-circulation reactor was successful, the navy built no more ships of [the Narwhal] class" (27). 
 Source:  http://www.navsource.org/archives/08/08671.htm 
 Reference:  Duncan, Francis. Rickover and the Nuclear Navy: The Discipline of Technology. Annapolis, Md: Naval Institute Press, 1990, pages 23-27. 
 Date:  09 September 1967 
 Subject(s):  S5G | USS Narwhal (SSN-671) | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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 Title:  Launch of the USS Skipjack Add
 Summary:  The launch of the USS Skipjack, lead boat in her class. The Skipjack incorporated a new hull design to improve her underwater speed, through a decrease in the length-to-beam ratio (making the boat both shorter and wider compared with nuclear submarines such as the Nautilus and Skate). The Skipjack was the first submarine powered by the S5W reactor plant, which became the Navy's submarine fleet reactor, used to drive both attack and ballistic missile submarines. 
 Source:  http://www.navsource.org/archives/08/08585.htm 
 Date:  26 May 1958 
 Subject(s):  S5W | USS Skipjack (SSN-585) | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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 Title:  Launching Glenard P. Lipscomb: Nuclear powered electric drive submarine Add
 Summary:  The program from the launching of the USS Glenard P. Lipscomb, which was powered by the S5W reactor plant and employed an electric drive propulsion system to achieve noise reduction. Instead of a steam-driven propulsion plant with reduction gears converting the high-speed efficiency of the turbine to the lower speed of the shaft and screw, an electric motor was used to drive the submarine. The program's text describes the two basic thrusts of naval nuclear propulsion development in the late 1960s and early 1970s. First, the development of a high-speed submarine, the 688 (Los Angeles) class; second, the development of a submarine focused on noise reduction - the Lipscomb, using the electric drive system. The Lipscomb was the only submarine built in its class; as historian Francis Duncan notes, the electric propulsion system was larger and heavier than the components in the steam-driven propulsion plant. 
 Source:  http://www.navsource.org/archives/08/08685.htm 
 Reference:  Duncan, Francis. Rickover and the Nuclear Navy: The Discipline of Technology. Annapolis, Md: Naval Institute Press, 1990, page 23. 
 Date:  04 August 1973 
 Subject(s):  S5W | USS Glenard P. Lipscomb (SSN-685) | Naval Reactors 
 Type:  Text 
 Format:  PDF 
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 Title:  Lower section of plant pressurizer, Shippingport Atomic Power Station Add
 Summary:  The lower section of the pressurizer at the Shippingport Atomic Power Station. In a pressurized water reactor plant, the pressurizer is used to maintain satisfactory operating pressure. Primary pressure in increased through the operation of the removable heating elements visible on the right side of the pressurizer. Pressure is reduced through a spray nozzle at the top of the unit. The pressurizer is connected to the primary coolant system through the surge line (entering the bottom of the pressurizer) and the spray line (entering at the top). During normal power operations, steam is present above the pressurizer's water volume. 
 Source:  http://www.loc.gov/pictures/item/PA1658/ 
 Reference:  U.S. Atomic Energy Commission, Westinghouse Electric Corporation, Duquesne Light Company, and International Conference on the Peaceful Uses of Atomic Energy. The Shippingport Pressurized Water Reactor. Reading, Mass: Addison-Wesley Pub. Co, 1958, pages 235-238. 
 Date:   unknown  
 Subject(s):  Shippingport Atomic Power Station | Nuclear engineering | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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