New Hampshire-Class Battleships
The basic assumption of this thread is that the terms of the Washington Naval Treaty failed to be agreed upon. As such the South Dakota-class battleships were never cancelled and in fact was followed by the four New Hampshire-class battleships, behemoth dreadnoughts heavier and nearly as long as the Iowa-class, sporting a main armament of 8 eighteen inch/50 caliber guns, 16 six inch/53 caliber secondary battery and 8 five inch/25 caliber dual purpose battery.
USS New Hampshire-Class Battleship
Ship Name Hull # Laid Down Launched Commissioned
New Hampshire (BB-55) 1925 1927 1929
Minnesota (BB-56) 1925 1927 1930
Kansas (BB-57) 1926 1928 1930
Vermont (BB-58) 1927 1929 1931
Displacement:
51,157 t light; 54,519 t standard; 60,000 t normal; 64,385 t full load
Dimensions: Length overall / water x beam x draught
882.07 ft / 850.00 ft x 106.00 ft x 30.00 ft (normal load)
268.85 m / 259.08 m x 32.31 m x 9.14 m
Armament:
8 - 18.00" / 457 mm guns (4x2 guns
16 - 6.00" / 152 mm guns (8x2 guns
8 - 5.00" / 127 mm guns in single mounts
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 16.0" / 406 mm 504.00 ft / 153.62 m 13.47 ft / 4.11 m
Main Belt covers 91 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 16.0" / 406 mm 9.00" / 229 mm 12.0" / 305 mm
2nd: 8.00" / 203 mm 4.00" / 102 mm 8.00" / 203 mm
- Armour deck: 6.25" / 159 mm,
- Conning tower: 20.00" / 508 mm
Machinery:
Oil fired boilers, steam turbines,
Electric motors, 4 shafts, 173,819 shp / 129,669 Kw = 29.00 kts
Range 6,000nm at 21.00 kts
Complement:
1,916 - 2,491
USS New Hampshire (BB-55) 1929 As Commissioned:
USS Minnesota (BB-56) 1930 As Commissioned:
USS New Hampshire (BB-55) 1937 (After Refit):
USS Minnesota (BB-56) 1937 (After Refit):
USS New Hampshire (BB-55) 1941 (After Refit):
USS Minnesota (BB-56) 1941 (After Refit):
USS Kansas (BB-57) 1941 (After Refit):
USS New Hampshire (BB-55) 1942 (After Refit):
USS Vermont (BB-58) 1943: