When the S-4 tragedy off Provincetown in 1927 added emphasis to the S-51 tragedy off Block Island two years before, the Navy Department began doing things to make submarines safer. Last week the experiments continued.
Puntarenas. On a sandy bottom 50 feet below sea level off the coast of Costa Rica the U.S. submarine 529 lay prostrate on, its belly. Within, its crew perspired and waited. Divers descended, hoses were screwed to newly installed valves in the submarine's side, cool air invaded the sunken fish. Soon, afterward the divers attached air hoses to...
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