During the cruise, the team surveyed the 1917 submarine “using sonar systems on Sentry and the research vessel Atlantis, as well as video cameras on a tethered vehicle, and still and video imaging ...

The USS F-1, a World War I-era U.S. Navy submarine, was recently discovered by researchers off the cost of San Diego, ...

Researchers took the first ever photographs of the sunken USS F-1, lost in 1917 in a collision off of California.

On Dec. 17, 1917, the U.S. submarine USS F-1 was lost at sea during a training accident off the coast of California, killing 19 crew members on board.