To be built under the Fiscal Year 1917, send on 28 March 1916 to the Navy Department and based on the USS Tennessee (BB-43) although using twin in stead of triple turrets. To be used for the Colorado-class preceded by the Tennessee-clas succeeded by the planned but no realized South Dakota-class and the realized North Carolina-class. Design not realized. Dimensions 656 (waterline) x 97.5 (waterline) x 30.2 1/2 feet. Electric propulsion, 8 boiler rooms, with 18,700 ehp speed 21 knots , range 10,000 nautical miles/10 knots. Armament 5x2-40.6cm/16”45 cal BLR guns, 22-12.7cm/5” cal 51 anti torpedo quick firing guns. 4 high power and 4 light anti aircraft guns and 4-53.34cm21” submerged torpedo tubes.
Main side belt armor extreme width 17.0, depth below water line 8.8½ and thickness 13½, 13½-8”.
Barbettes thickness heavy part 13” and light part 4½”.
Turrets thickness port 16”, side9-10”, top 5” and rear 9”.
Conning tower proper thickness 16”and top 8”, tower tube heavy part 16” and light part 6”.
Fire control tower thickness 6”.
Uptake protection thickness 9-13½.
Protective deck total thickness 140 and splinter deck 60.
Weight summary normal condition:
Hull complete and fittings 18,128 tons
Protection 10,266 tons
Steam engineering 2,003 tons
Reserve feed 2/3 supply 200 tons
Battery 1,881 tons
Ammunition and 2/3 ordnance stores 1,536 tons
Equipment and 2/3 equipment stores 536 tons
Oil fuel 2/3 full supply 1,720 tons
Margin 40 tons
Normal displacement 36,900 tons
Source
Naval History and Heritage Command US Navy Spring Styles Book No. 1 (1911-1925) S-584-100
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