Landlocked Atom Sub "Under Way" -- The first atomic submarine engine, built into a land based submarine hull, was generating power when this overhead view was made at the National Reactor Testing Station in Idaho. The engine section is immersed in a sea tank about 50 feet in diameter and almost 40 feet high to simulate actual operating conditions. The nuclear power plant, designed and built by Westinghouse Electric Corporation, is a prototype of the engine in the USS Nautilus, first atom submarine scheduled to be launched Jan. 21 at Groton, Connecticut. This is one of a series of photos just released by Westinghouse. January 15, 1954. (Photo by AP Wirephoto)