This is the NR-1. It is the US Navy's nuclear powered research submersible. Much of the time I spent at EB was devoted to the design and support of hydraulic and high-pressure air systems on this vessel. It was placed in service in 1969 and still serves today. During the Cold War the NR-1's missions and capabilities were classified, but since the demise of the Soviet Union, the vessel has been more widely publicized. It has been used by Dr. Robert Ballard in a number of deep sea search and research programs.