Donna Tobias: The Navy’s First Female Deep Sea Diver

HMCS (DV) Chris West was the Senior Instructor of the COMNAVSURFLANT Second Class Diving School in 1974 when his friend Del Strode asked him to speak with a young hull technician who wanted to go to dive school. Strode had been highly impressed by the young...

Trieste II (DSV 1) Flag

This American flag accompanied Navy submersible Trieste II (DSV 1) on many of its missions. Trieste II (DSV 1) performed undersea research, search, and recovery operations for the Navy from 1965 to 1984. With an operating depth of 20,000 feet, it could reach almost...

Torpedo Dynamo-Electric Machines

How do submarines and ships fire weapons? Today they use sophisticated fire control equipment. In the late nineteenth century, they used a dynamo-electric machine. The Farmer’s torpedo dynamo-electric machine was a late-nineteenth century device used to detonate...

Sealab II: Remembering the “Tilton’ Hilton” 50 Years Later

Living underwater might seem like the stuff of a Jules Verne story or a popular TV cartoon. But fifty years ago, 28 Navy aquanauts did just that, as part of the Navy’s groundbreaking Sealab II project. The undersea equivalent of the 1960s space race, the Navy’s three...