US Navy possessed none commissioned aircraft carriers according to the Secret Admiralty Weekly Intelligence Summary No. 1 dated 10 July 1920

June 1927. U.S. Navy photo 80-G-460108

An item reported that at the moment the US navy had none aircraft carriers commissioned. The USS Langley (1) would be ready by January 1921 and which carried 30 large aircraft. This 19.000 tons measuring carrier was a converted collier but with just 12 knots speed a slow ship.

Note

1. Laid down by Mare Island navy Yard, USA as collier USS Jupiter (AC-3) on 18 October 1911, launched on 14 August 1912, commissioned on 7 April 1913, decommissioned on 24 March 1920, reclassified as the aircraft carrier Langley after a conversion at Navy Yard Norfolk on 21 April 1920, recommissioned on 20 March 1922, decommissioned on 25 October 1936, reclassified as a seaplane tender on 21 April 1937, recommissioned on 21 April 1937 and sunk by Japanese aircraft on 27 February 1942 near Tjilatjap, Dutch East Indies. As collier were her sister ships Cyclops, Proteus and Nereus. Displacement as Jupiter 19.360 tons and dimensions 165,2 x 19,9 x 8,4 metres or 542 x 65.5 x 27.8 feet.

Source

The National Archives CAB-24-109-33. Secret Admiralty Weekly Intelligence Summary No. 1 dated 10 July 1920