The captain of the F-1 submarine later testified that, in the fog, he didn’t see the oncoming vessel until the last second. Someone yelled to close the main deck hatch. But it was too late. The other ...

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.

The USS F-1 submarine sank in seconds after it was badly damaged in a collision with another U.S. Navy submarine. Nineteen of its crew drowned in the accident, and three were rescued by the other sub.

On January 8, 2005, the Los Angeles-class attack submarine, USS San Francisco (SSN 711), crashed into an underwater mountain 364 nautical miles southeast of Guam at a depth of 525 feet.

Not long ago, a United States Navy submarine plowed into a mountain while more than 500 feet under water. ... However, as the crew of the USS San Francisco learned in 2005, ...

Naval Base Guam, March 2003: The second sub to arrive for Submarine Squadron 15, USS San Francisco, is moored alongside its tender ship, USS Frank Cable, at Guam’s Polaris Point.

"USS San Francisco, SSN 810 once commissioned will be our nation's newest Virginia class nuclear-powered fast attack submarine," said Carlos Del Toro, Secretary of the Navy.

The most recent was the Los Angeles-class attack submarine, the former USS San Francisco (SSN-711). San Francisco was inactivated from service in 2017.

In 2005, when the USS San Francisco fast-attack submarine struck an underwater mountain, it took 3 1/2 years and $134 million to make repairs — including a new sonar dome.

The USS Connecticut struck an uncharted underwater mountain in the disputed waters of the South China Sea on Oct. 2, injuring 11 sailors.