Tour the Belly of a Naval Wonder

Inside a National Treasure: SS United States

USS United States
USS United States
USS United States
USS United States
USS United States
USS United States
USS United States
USS United States
USS United States
USS United States
USS United States
USS United States
USS United States
USS United States
USS United States
Found in one of the engine rooms, this gauge would seem to indicate that the ship's massive, 60,000-pound props could be spun at 199 RPM! Like everything else in the room, this capability would have been kept a secret. (John Griffin/ABC News)
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