Drawing S584-179 made for an aircraft carrier to be built under Fiscal Year 1922 Shipbuilding Program sent on 12 May 1921 to the Navy Department. The General Board supplied on 24 February technical details. The building of such an aircraft carrier using this design was not executed due to the limitations of the Washington Naval Treaty of 1922. Displacement 39.000 tons and as dimensions 850’0” (designers waterline)-900 (flying deck)- 929’0” (around over all) x 94’0” (moulded on waterline)-95’2” (extreme on waterline) x 29’0”(around). Freeboard maximum at A.P. 26’0’ and freeboard at side M.P. 48’0”. Displacement of 39.000 tons was calculated as follows: hull complete 21.875 tons, hull fittings 2.000 tons, protection vertical-side-belts-slopes 2.000 tons, steam engineering 6.500 tons, reserve feed 500 tons, battery 405 tons, ammunition 475 tons, equipment 970 tons, outfit and 2/3 stores (350+475) 825 tons, aircraft&aircraft stores 600 ton (included 240 ton gasoline), fuel oil 2.3 full supply 2.500 tons and margin 800 tons. With a horsepower of 180.000 ship a maximum speed of 34 knots and with a speed of 10 knots a range of 10.000 nautical miles. She was to be fitted out with 5 boiler rooms. The main armament consisted of 4x2-6” guns fore and 4x2-6” guns aft, 12-5” anti aircraft guns and 2x3-21” torpedo tubes. The armour consisted if a main side belt armour 12’6”extreme width, depth below waterline 6’0”and a thickness of 7” above and 4” bot. The conning tower was protected by 2” thick armour and further more a protective deck with a thickness o 2’ over 30 feet.
Source the so-called Spring Styles Book 1 (March 1911-September 1925). Naval History and Heritage Command. Lot S-584. Preliminary designs prepared by mostly civilians working at the Bureau of Construction and Repair (succeeded by the Bureau of Ships nowadays the Naval Sea Systems Command) under supervision of naval architects of the Navy Construction Corps. A major part of the drawings is presented to the General Board which advised the Secretary of the Navy.
