Aerial views from a hovering helicopter, of the U.S. Destroyer Escort, USS Foss (DE-59) as is floats unmanned as a target in live fire test of a new proximity fuse for the Mk 16 torpedo. A huge explosion is seen as the torpedo, launched by the U.S. Submarine, USS Sabalo (SS-302) strikes the Foss amidship. The Foss breaks into two pieces, which float separately, until they begin to sink slowly. The bow, displaying the number 59 points almost straight up as it begins to sink. A helicopter flies low over the scene.
Aerial view of porpoising Mk 16 torpedo. A U.S. Balao-Class submarine running on surface of the sea.
Views of periscope on submarine taken from camera mounted on the conning tower. The periscope raises, rotates, and lowers. Brief view from underwater.