The Navy's Trump-class battleship will be nuclear-powered, according to the service's new 30-year shipbuilding plan , signaling a significant about-face on the developing program's propulsion system. “The nuclear-powered battleship is designed to provide the fleet with a significant increase in combat power by longer endurance, higher speed, and accommodating advanced weapon systems required for modern warfare,” the plan states. Prior to the plan’s release, Navy officials had said a gas turbine and diesel propulsion system would power the...