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1Title:  Authorizing legislation for destroyer reactor plant Add
 Summary:  This hearing document describes an appropriation to support the construction of the destroyer prototype plant D1G at the General Electric facility in West Milton, New York. The primary purpose of the D1G project was “to provide for development of the lightest practicable pressurized water reactor plant which can be effectively utilized in the Navy's nuclear-powered destroyer which is included in the fiscal year 1959 shipbuilding program” (2). The D1G reactor plant itself incorporated “advances in the areas of nuclear physics, heat transfer, reactor control, fuel element design and core life” (2). The hearing focuses on related issues, such as the status and timing of the Navy’s request for the nuclear-powered destroyer and the D1G’s relation to the aircraft carrier prototype, then under construction at the Idaho National Laboratory. Additionally, there is a dialogue on the need for the prototype plant, given the information that was available based on the operation of existing nuclear-powered prototypes and submarines. W. Kenneth Davis, Director of the AEC’s Division of Reactor Development, notes that the D1G is prototype will represent “a new and advanced type of propulsion plant,” making the construction of a prototype necessary (6). 
 Date:   1958 
 Subject(s):  D1G | Naval Reactors 
 Type:  Text 
 Format:  PDF 
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2Title:  Containment structure built for the S1G prototype plant Add
 Summary:  The containment building built for the sodium-cooled, intermediate range S1G reactor plant in West Milton, New York. In January 1952, the Atomic Energy Commission's Reactor Safeguards Committee approved the construction of the S1G reactor at West Milton, provided the reactor was enclosed in a containment sphere. The 225 foot sphere, composed of one inch steel plates, was designed to contain any radioactivity release. After the sodium-cooled approach was abandoned by Naval Reactors, the S1G plant was decommissioned. The sphere was later used to house the D1G pressurized water reactor/prototype plant. 
 Reference:  Hewlett, Richard G., and Francis Duncan. Nuclear Navy, 1946-1962. Chicago: University of Chicago Press, 1974, pages 176-177. 
 Date:   unknown  
 Subject(s):  S1G | D1G | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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