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A1B reactor

The A1B reactor is a nuclear reactor being designed for use by the United States Navy to provide electricity generation and propulsion for the Gerald R. Ford-class aircraft carriers.[1] It has been in development since 1998.[2]

The A1B designation stands for:[3]

Initial plans for the Gerald R. Ford-class carrier program include a two-reactor complex intended to replace the A4W reactor design used on the Nimitz-class carriers. The new A1B reactor plant is a smaller, more efficient design that provides approximately three times the electrical power of the Nimitz-class A4W reactor plant.[4] The modernization of the plant led to a higher core energy density, lower demands for pumping power, a simpler construction, and the use of modern electronic controls and displays. These changes resulted in a two-thirds reduction of watch standing requirements and a significant decrease of required maintenance.[5]


  1. ^ "FY 2005 Congressional Budget, Naval Reactors" (PDF). p. 31. Archived from the original on 16 September 2008. Retrieved 2008-09-14. 
  2. ^ Peter Dujardin (July 15, 2006). "Nuclear Advancements Lauded". Daily Press. Retrieved 2012-07-06. 
  3. ^ "Bechtel Briefs -- December 2002" (PDF). Retrieved 2007-09-19. 
  4. ^ Gerald R. Ford (CVN 78) Christening in Newport News, Va.
  5. ^ John Schank ... [et al.] (2005). "Modernizing the U.S. aircraft carrier fleet : accelerating CVN 21 production versus mid-life refueling" (PDF). RAND. p. 78. Retrieved 2008-09-14.