Launched August25, 1912, USS Langley.
Built as a collier and named Jupiter (Collier # 3), she was the first surface ship propelled by electric motors.
Conversion to an aircraft carrier authorized, and design work completed, in July 1919.
Converted into the first US aircraft carrier at the Norfolk Navy Yard.
Renamed Langley, 21 April 1920. Reclassified as an aircraft carrier and redesignated CV-1.
Converted to a seaplane tender at the Mare Island Navy Yard (25 October 1936-26 February 1937). Redesignated AV-3, 21 April 1937.
Fate: Bombed by Japanese aircraft, 27 February 1942, and scuttled by her escorting destroyers, about 75 miles south of Tjilatjap, Java.