The L-class submarines made up a large portion of the Atlantic fleet, and they served throughout the war. The USS L-1 (SS-40) featured a diesel-electric engine, which made it capable of reaching ...

After more than 100 years, we have the first actual image of the wreck of a sunken U.S. Navy submarine from World War I. A recent expedition to survey it and other lost military hardware has ...

The World War I-era USS F-1 submarine wreck, lost in 1917, was explored by researchers using advanced technology, capturing new images and its honoring fallen sailors.

SAN DIEGO (Storyful/CBS Newspath/WKRC) - Researchers have discovered the USS F-1, a World War I-era submarine, which had been lost at sea for 108 years. The vessel was found off the coast of San ...

The L-class submarines made up a large portion of the Atlantic fleet, and they served throughout the war. The USS L-1 (SS-40) featured a diesel-electric engine, which made it capable of reaching ...