The Colorado class were nearly identical in layout to the Tennessee class except having 16" guns instead of 14".
The Colorado class had one / two catapults.
The USS Maryland was the first ship to have a compressed air catapult installed as an experiment. Initially a Vought VE-9H was used. In September 1924 it was replaced by three UO-1 floatplanes.
The USS Colorado had a powder type catapult installed on a turntable in 1927. The UO-1 floatplane was used. One catapult was installed on the quarterdeck and one on the No. 3 turret.
In the 1930s the floatplanes were the Vought O2U or O3U Corsairs. In 1937 these were replaced by by Curtiss SOC-1 Seagulls. These were eventually replaced by the Vought OS2U Kingfisher which was used until the end of World War II.
The 16" L/45 Mk I guns could fire a 2,240 lb armor piercing round 35,000 yards. The maximum elevation was 30°.
The USS Maryland and USS West Virginia were designed to be flagships.
Washington Naval Treaty
Due to the terms of the Washington Naval Treaty the 75% completed USS Washington was used as a target and sunk.