March 20th, 1922
USS Jupiter is recommissioned as USS Langley
90 years ago, the U. S. Navy’s first aircraft carrier, the USS Langley was commissioned, after having been converted from a collier, the USS Jupiter. Before this conversion, the USS Jupiter was already notable, as the first large ship in the world equipped with an electric drive, a quality which made her transformation into the Navy’s first aircraft carrier a fitting one. The November 1922 issue of Proceedings recounts this conversion in its Professional Notes, and gives a detailed account of the USS Langley‘s many new and innovative features which would allow it to carry and support the Navy’s aircraft.
The U. S. S. Langley is now on her shakedown cruise preparatory to taking her place in the fleet as the Navy’s first airplane carrier.
The new Langley was originally built at Mare Island as the collier Jupiter—famous as the first large ship in the world to have electric drive—and launched in 1912. The work of conversion was done at the Norfolk Yard.
The flying-off deck of the Langley is 520 feet long and 65 feet wide. Telescopic masts 50 feet high are housed like periscopes when not up in position. The ship is a combined floating aviation field hangar and repair plant for aeroplanes. The repair plant includes an armory, carpenter, and wing repair shops, machine shop, blacksmith shop and foundry, metal shop and torpedo repair shop, besides photographic and aerological laboratories. There is an electric elevator for lifting fuselages and wings from the main deck to the flying-off deck. When lowered the top of the elevator forms a part of the flying-off deck. There are two electric traveling cranes on the main deck for shifting planes fore and aft, and there are four cranes on the topside for hoisting planes from the water to the flying-off deck. The navigating bridge is below the flying-off deck, and there are “T-booms” along the ship’s sides for the auxiliary radio antennas. There are two catapults on deck, one forward and one aft—there is a testing room and stand for aeroplane engines, a pigeon loft, a kite balloon filling station, and all the features which make a large modern naval vessel, virtually a floating city. The ship has been converted from a coal burner to an oil-burner, and her armament is four 5-inch guns. The ship is fitted to accommodate ten ship’s officers, thirty-five commissioned and warrant aviators, thirty-one chief petty officers, and 229 men for the crew.