Haunting Deep-Sea Footage Reveals U.S. Submarine Lost During WWI

On December 17, 1917, the U.S. Navy submarine USS F-1, crashed off the coast of San Diego. Now, more than a century later, researchers at the Woods Hole Oceanographic Institute (WHOI) have collected the first high-definition visuals of the wreckage. During a series of seven dives conducted earlier this year, researchers employed the crewed underwater vehicle Alvin and autonomous underwater vehicle Sentry, both based on the WHOI research ship Atlantis, to snap close-ups of the sunken submarine. Since 1917, F-1 has been resting approximately 1,300 feet (400 meters) underwater. A Navy underwater vehicle located it by accident in the 1970s, but this expedition is the first to capture detailed images of the lost sub. The F-1 was built in 1901 and launched in 1911. The crash occurred during a training mission, during which the F-1 collided with another submarine, sinking in mere seconds. Nineteen crew members lost their lives, but five escaped and survived. By the time of the 1917 crash, t ... Read full article.