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C1W reactor: Wikis


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The C1W reactor is a nuclear reactor used by the United States Navy to provide electricity generation and propulsion on warships. The C1W designation stands for:

  • C = Cruiser platform
  • 1 = First generation core designed by the contractor
  • W = Westinghouse was the contracted designer

This type of nuclear propulsion plant was used exclusively on the Long Beach-class guided missile cruiser, the world's first nuclear-powered cruiser. The C1W was the only nuclear reactor ever explicitly earmarked for a cruiser (2 of them, powering 2 geared turbines) with all subsequent nuclear cruisers powered by "D"-class (or destroyer-type) reactors.

The Long Beach, commissioned September 1961, was decommissioned May 1995.


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