Design S584-175 (Spring Styles Book 1911-1925) dated from 24 March 1921 and was based on the design S584-177 of 28 February 1921 for what became the Pensacola (CL-24) class (1) designs handed over to the General Board in March 1921. Design not executed. Displacement 10.000 tons and as dimensions 600 (waterline) 55‘0“ x 20’00”. Freeboard maximum at stem 29’, A.P. 14’and total depth at M.P. measured at of uppermost strength DK 35‘. Metacenter above base 24,15, C. of G. above base 19,90 and G.M. 4,25. Speed 34,5 knots and with a speed of 10 knots a range of 8.000 nautical miles. The horsepower delivered by red. gear turbines and the 12 boilers divided over 5 boiler rooms was 459000 ehp. The armament was to consist of 4x2-8” guns, 4-5” short anti aircraft guns and 2x3-21” torpedo tubes. Barbettes not protected by armour, a 1” protective deck and a 1.5” thick splinter deck above the magazines.
Displacement 10.000 tons: hull no protection 4.241 ton, hull fittings 492 ton, protection (all) 591 ton, steam engineering 2.010 ton, 2/3 reserved feed 123 ton, battery 400 ton, ammunition 270 ton, equipment 229 ton, outfit and 2/3 full supply 300 ton, fuel oil 2/3 full supply 951 ton and margin 434 ton. Coefficients at normal displacement: longitudinal 0,58, midship 0,914 and displacement: length 46,2.
Note
1. Laid down at the New York Navy Yard on 27 October 1926, launched on 25 April 1929, commissioned on 6 February 1930 and used as target ship in 1948. Classified as heavy cruiser with a standard displacement of 9.200 and an armament of 2x3+2x2-20,3cm/8” guns.
