CV 1
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The Jupiter (AC 3) was laid down October 18, 1911 by Mare Island Navy Yard, Vallejo, Calif.; launched August 14, 1912; sponsored by Mrs. Thomas F. Ruhm; and commissioned April 7, 1913, Comdr. Joseph M. Reeves in command.

After successfully passing her trials, Jupiter, the first electrically-propelled ship of the U.S. Navy, embarked a Marine detachment at San Francisco and reported to the Pacific Fleet at Mazatlan, Mexico, April 27, 1914, bolstering U.S. naval strength on the Mexican Pacific coast during the tense days of the Vera Cruz crisis. She remained on the Pacific coast until she departed for Philadelphia, October 10. En route the collier steamed through the Panama canal on Columbus Day, the first vessel to transit it from west to east.

Prior to America's entry into World War I, she cruised the Atlantic and Gulf of Mexico attached to the Atlantic Fleet Auxiliary Division. The ship arrived Norfolk April 6, 1917, and, assigned to Naval Overseas Transportation Service (NOTS), interrupted her coaling operations by two cargo voyages to France in June 1917 and November 1918. She was back in Norfolk January 23, 1919 whence she sailed for Brest, France, March 8, for coaling duty in European waters to expedite the return of victorious veterans to the United States. Upon reaching Norfolk August 17, 1919 the ship was transferred to the west coast. Her conversion to an aircraft carrier was authorized July 11, 1919 and she sailed to Hampton Roads, Va., December 12, where she was decommissioned March 24, 1920.

Jupiter was converted into the first U.S. aircraft carrier at the Navy Yard, Norfolk, Va., for the purpose of conducting experiments in the new idea of seaborne aviation, a field of unlimited possibilities. Her name was changed to USS Langley April 11, 1920; she was reclassified CV 1 and recommissioned March 20, 1922, Cmdr. Kenneth Whiting in command.

As the first Navy carrier, USS Langley was the scene of numerous momentous events. On October 17, 1922 Lt. Cmdr. Virgil C. Griffin piloted the first plane, a VE7-SF, launched from her decks. Though this was not the first time an airplane had taken off from a ship, and though Langley was not the first ship with an installed flight-deck, this one launching was of monumental importance to the modern U.S. Navy. The era of the aircraft carrier was born introducing into the Navy what was to become the vanguard of its forces in the future. With Langley underway 9 days later, Lt. Cmdr. G. DeC. Chevalier made the first landing in an Aeromarine. On November 18, Commander Whiting, at the controls of a PT, was the first aviator to be catapulted from a carrier's deck.

By January 15, 1923 USS Langley (CV 1) had begun flight operations and tests in the Caribbean for carrier landings. In June she steamed to Washington, D.C., to give a demonstration at a flying exhibition before civil and military dignitaries. She arrived in Norfolk June 13, and commenced training along the Atlantic coast and Caribbean which carried her through the end of the gear. In 1924 Langley participated in more maneuvers and exhibitions, and spent the summer at Norfolk for repairs and alterations, she departed for the west coast late in the year and arrived in San Diego November 29 to join the Pacific Battle Fleet.

For the next 12 years USS Langley operated off the California coast and Hawaii engaged in training fleet units, experimentation, pilot training, and tactical-fleet problems. On October 25, 1936 she put into Mare Island Navy Yard, Calif., for overhaul and conversion to a seaplane tender. Though her career as a carrier had ended, her well-trained pilots proved invaluable to the next two carriers, USS Lexington and USS Saratoga.

Langley completed conversion February 26, 1937 and was reclassified AV 3 on April 11; she was assigned to Aircraft Scouting Force and commenced her tending operations out of Seattle, Sitka, Pearl Harbor, and San Diego. She departed for a brief deployment with the Atlantic Fleet from February 1st to July 10, 1939, and then steamed to assume her duties with the Pacific fleet at Manila arriving September 24th.

At the outbreak of World War II, USS Langley was anchored off Cavite, Philippine Islands. She departed December 8 and proceeded to Balikpapan, Borneo, and Darwin, Australia, where she arrived January 1, 1942. Until 11th, Langley assisted the Royal Australian Air Force (RAAF) in running antisubmarine patrols out of Darwin. She was then assigned to American-British-Dutch-Australian forces assembling in Indonesia to challenge the Japanese thrust in that direction. She departed Fremantle, Australia, February 22 in convoy, and left the convoy 5 days later to deliver 32 P-40s to Tjilatjap, Java.

Early in the morning February 27, 1942, USS Langley rendezvoused with her antisubmarine screen, destroyers USS Whipple and USS Edsall. At 1140 nine twin-engine enemy bombers attacked her. The first and second Japanese strikes were unsuccessful; but during the third Langley took five hits. Aircraft topside burst into flames, steering was impaired, and the ship took a 10 degree list to port. Unable to negotiate the narrow mouth of Tjilatjap Harbor, the seaplane tender went dead in the water as in-rushing water flooded her main motors. At 1332 the order to abandon ship was passed. The escorting destroyers fired nine 4-inch shells and two torpedoes into the old tender to insure her sinking. She went down about 75 miles south of Tjilatjap with a loss of 16.