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Long Beach, first nuclear-powered cruiser, launched by the U.S. Navy in 1959. With a length of 721 feet (219 metres) and a displacement of 14,000 tons, the Long Beach was the first large surface warship to be built with a main armament consisting of guided missiles. The compactness of its power plant, consisting of two pressurized-water nuclear reactors, gave it substantially larger below-deck space than conventionally powered ships of the same tonnage, and it was...