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fighting ships of the world

UNITED STATES NAVY (UNITED STATES OF AMERICA)

CAPITAL SHIPS & MONITORS

ILLINOIS 1st class battleships (1900 - 1901)

Illinois 1901

Illinois 1918

No Name Builder Laid down Launched Comm Fate
BB7 Illinois Newport News 10/2/1897 4/10/1898 16/9/1901 to Naval Militia as armory 10/1921
BB8 Alabama Cramp, Philadelphia 2/12/1896 18/5/1898 16/10/1900 to War dept. 9/1921
BB9 Wisconsin Union Iron Wks, San Francisco 9/2/1897 26/11/1898 4/2/1901 stricken 7/1921
  

Displacement normal, t

BB7,8: 11565

BB9: 11653

Displacement full, t

12250

Length, m

BB7: 114.4

BB8,9: 114.0

Breadth, m

22.0

Draught, m

BB7,8: 7.16

BB9: 7.21

No of shafts

2

Machinery

VTE, 8 cylindrical boilers

Power, h. p.

10000

Max speed, kts

16

Fuel, t

BB7: coal 1400

BB8: coal 1355

BB9: coal 1310

Endurance, nm(kts) 4190(10)

Armour, mm

Harvey steel - belt: 419 - 102, bulkheads: 305, deck: 127 - 70, barbettes: 381 - 254, turrets: 356 - 76, casemates: 140, CT: 254 - 51

Armament

BB7, 9: 2 x 2 - 330/35 Mk II, 14 x 1 - 152/40 Mk III, 16 x 1 - 57/40 Hotchkiss Mk I, 6 x 1 - 37/40 Hotchkiss/Driggs-Schroeder Mk I, 4 x 1 - 7.6/90, 4 - 450 TT (beam)

BB8: 2 x 2 - 330/35 Mk II, 14 x 1 - 152/40 Mk III, 16 x 1 - 57/40 Hotchkiss Mk I, 4 x 1 - 37/40 Hotchkiss/Driggs-Schroeder Mk I, 4 x 1 - 7.6/90, 4 - 450 TT (beam)

Complement

536

Ship project history: Authorised under the Act of 10/6/1896. Although of the same dimensions as the previous class, these ships were quite dissimilar. There was a forecastle deck as far as the mainmast giving a freeboard of 6.0m forward, and for the only time in US battleships the two funnels were abreast. On trials Illinois was the fastest with 12,899ihp = 17.45kts at 0.2m forced draught.

Ship protection: Main belt had 2.29m height (1.07m over and 1.22m under waterline). It was 419mm thick at upper edge, tapering to 337mm at waterline and 241mm at lower edge from forward bulkhead of boiler room to the centerline of after barbette. Thickness of main belt was gradually reduced to 267mm maximum at the centerline of fore barbette. Next 9.1m forward part of belt was 102mm. Fore bulkhead was 254mm and aft bulkhead was 305mm. There was 140mm upper belt. 70mm armoured deck over citadel was flat and connected with upper edge of main belt. It was sloped at ship ends and 76mm thick fore and 127mm aft. Main gun turrets had 356mm sides and 89mm crowns. 127mm guns were protected by 140mm casemate and 38mm splinter bulkheads between guns. CT had 254mm sides and 51mm crown.

Modernizations: 1909 - 1912, all: - 12 x 1 - 57/40, 4 - 450 TT; + 4 x 1 - 76/50 Mk III/V/VI; cage masts were installed.

1909 - 1912, Illinois: cylindrical boilers were replaced by 8 Mosher.

1919, all: - 6 x1 - 152/40 (may be temporarily); + 2 x 1 - 76/52 Mk X

Naval service: All were stricken after WWI; Illinois was used as a accommodation ship till 1955, Alabama was sunk as target for aircraft 27/9/1921.

Illinois 1901

Ivan Gogin, 2014