In an era when submarine crews tapped undersea cables and deployed with spies in a cat-and-mouse game with the Soviet fleet, NR-1 set itself apart with a narrow, deep-diving hull and a retractable ...

In 1958, the USS Nautilus, America's first nuclear-powered submarine, became the first sub ... lent civilians its miniature nuclear sub, the NR-1, to conduct everything from oceanographic studies ...