SM U-140
SM U-140 was a Type [U 139 submarine] that served in the Imperial [German Navy] in World [War I].
U-140 was engaged in the Naval warfare of [World War I|naval warfare] and took part in the First [Battle of the Atlantic].
After the end of World War I, U-140 surrendered to the United States, which used her for testing. Finally, the United [States Navy] destroyer sank her as a target in the Atlantic Ocean off Cape Charles, Virginia, on 22 July 1921.