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United States' New Mexico Class Battleships

Photos

BB-40 USS New Mexico at Brest, France:
United States' BB-40 USS New Mexico at Brest, France
Imperial War Museum, Q-69659
BB-40 USS New Mexico steaming in line on April 13, 1919:
United States' BB-40 USS New Mexico steaming in line on April 13, 1919
US Naval Historical Center, NH-59959
BB-40 USS New Mexico refueling in 1919:
United States' BB-40 USS New Mexico refueling in 1919
US Naval Historical Center, NH-45320
BB-40 USS New Mexico in the 1920s:
United States' BB-40 USS New Mexico in the 1920s
US Naval Historical Center, NH-45309
BB-40 USS New Mexico at Pearl Harbor, Hawaii in 1935:
United States' BB-40 USS New Mexico at Pearl Harbor, Hawaii in 1935
US Naval Historical Center, NH-50299
BB-40 USS New Mexico at Puget Sound Navy Yard In Bremerton, Washington after overhaul:
United States' BB-40 USS New Mexico at Puget Sound Navy Yard In Bremerton, Washington after overhaul
US Navy photo, NH-97414

BB-40 USS New Mexico hit by a kamikaze off Okinawa on May 12, 1945:
United States' BB-40 USS New Mexico hit by a kamikaze off Okinawa on May 12, 1945
US Navy photo, 80-G-328653
BB-40 USS New Mexico off Saipan looking at the 5" L/25 batteries on June 15, 1944:
United States' BB-40 USS New Mexico off Saipan looking at the 5" L/25 batteries
US Navy photo, 80-G-K-14162

BB-40 USS New Mexico in Tokyo Bay with Mt. Fuji behind:
United States' BB-40 USS New Mexico in Tokyo Bay with Mt. Fuji behind
US Naval Historical Center, NH-50232
BB-40 USS New Mexico's 14" guns firing at Guam sometime between July 14 and 20, 1944:
United States' BB-40 USS New Mexico's 14" guns firing at Guam sometime between July 14 and 20, 1944
US Navy photo, 80-G-K-14233

BB-40 USS New Mexico and USS Idaho (center) off Iwo Jima or Okinawa:
United States' BB-40 USS New Mexico and USS Idaho (center) off Iwo Jima or Okinawa
US Navy photo, 80-G-K-3706
BB-40 USS New Mexico restocking 14" shells of Guam in July 1944:
United States' BB-40 USS New Mexico restocking 14" shells of Guam in July 1944
US Navy photo, 80-G-K-14228
BB-41 USS Mississippi in New York City:
United States' BB-41 USS Mississippi in New York City
US Naval Historical Center, NH-60653
BB-41 USS Mississippi off Panama in 1923:
United States' BB-41 USS Mississippi off Panama in 1923
US Naval Historical Center, NH-100503
BB-41 USS Mississippi with SOC aircraft on its catapults in the 1930s:
United States' BB-41 USS Mississippi with SOC aircraft on its catapults in the 1930s
US Navy photo, NH-97362
BB-41 USS Mississippi in the North Atlantic in September 1941:
United States' BB-41 USS Mississippi in the North Atlantic in September 1941
US Naval Historical Center, NH-94649

BB-41 USS Mississippi in Hvalfjord, Iceland in November 1941:
United States' BB-41 USS Mississippi in Hvalfjord, Iceland in November 1941
Imperial War Museum, A-6391

BB-41 USS Mississippi going up the Mississippi River on October 16, 1945:
United States' BB-41 USS Mississippi going up the Mississippi River on October 16, 1945
Army Signal Corps, SC-215864
BB-41 USS Mississippi in October 1941:
United States' BB-41 USS Mississippi in October 1941
Imperial War Museum, A-5954

BB-41 USS Mississippi in Hvalfjord, Iceland in November 1941:
United States' BB-41 USS Mississippi in Hvalfjord, Iceland in November 1941
Imperial War Museum, A-6392
BB-41 USS Mississippi in Hvalfjord, Iceland between November 10 to 22, 1941:
United States' BB-41 USS Mississippi in Hvalfjord, Iceland between November 10 to 22, 1941
Imperial War Museum, A-6600

BB-42 USS Idaho, BB-40 USS New Mexico, and BB-41 USS Mississippi in Pearl Harbor, Hawaii on December 17, 1943:
United States' BB-42 USS Idaho, BB-40 USS New Mexico, and BB-41 USS Mississippi in Pearl Harbor, Hawaii on December 17, 1943
US Navy photo, 80-G-275940
BB-41 USS Mississippi in Hvalfjord, Iceland between November 10 to 22, 1941:
United States' BB-41 USS Mississippi in Hvalfjord, Iceland between November 10 to 22, 1941
Imperial War Museum, A-6601

BB-41 USS Mississippi in Puget Sound, Washington on July 13, 1944:
United States' BB-41 USS Mississippi in Puget Sound, Washington on July 13, 1944
US Navy photo, NH-104835
BB-42 USS Idaho's bake shop in 1919:
United States' BB-42 USS Idaho's bake shop in 1919
US Naval Historical Center, NH-100726
BB-42 USS Idaho inspection, 1920:
United States' BB-42 USS Idaho inspection, 1920
US Naval Historical Center, NH-53203
BB-42 USS Idaho physical training in 1920:
United States' BB-42 USS Idaho physical training in 1920
US Naval Historical Center, NH-53204
BB-42 USS Idaho in 1920:
United States' BB-42 USS Idaho in 1920
US Naval Historical Center, NH-73983
BB-42 USS Idaho during battleship fleet practice off the California coast with the USS Texas in 1930:
United States' BB-42 USS Idaho during battleship fleet practice off the California coast with the USS Texas in 1930
US Naval Historical Center, NH-73834
BB-42 USS Idaho in the 1930s:
United States' BB-42 USS Idaho in the 1930s
US Navy photo, NH-97330
BB-42 USS Idaho after modernization in 1934:
United States' BB-42 USS Idaho after modernization in 1934
US Naval Historical Center, NH-60632
BB-42 USS Idaho at Hvaeldefjord, Iceland in October 1941:
United States' BB-42 USS Idaho at Hvaeldefjord, Iceland in October 1941
US Naval Historical Center, NH-94650

BB-42 USS Idaho in October 1941:
United States' BB-42 USS Idaho in October 1941
Imperial War Museum, A-5956

BB-42 USS Idaho off Iwo Jima in February, 1945:
United States' BB-42 USS Idaho off Iwo Jima in February, 1945
US Naval Historical Center, NH-92509
BB-42 USS Idaho in October 1941:
United States' BB-42 USS Idaho in October 1941
Imperial War Museum, A-5670

BB-42 USS Idaho with USS Wasp in October 1941:
United States' BB-42 USS Idaho with USS Wasp in October 1941
Imperial War Museum, A-5951

BB-42 USS Idaho off Okinawa on April 1, 1945:
United States' BB-42 USS Idaho off Okinawa on April 1, 1945
US Navy photo, 80-G-K-3829
BB-42 USS Idaho in October 1941:
United States' BB-42 USS Idaho in October 1941
Imperial War Museum, A-5941

BB-42 USS Idaho at Hvalfjord, Iceland between November 25 to 30, 1941:
United States' BB-42 USS Idaho at Hvalfjord, Iceland between November 25 to 30, 1941
Imperial War Museum, A-6431

BB-42 USS Idaho off Okinawa on April 1, 1945:
United States' BB-42 USS Idaho off Okinawa on April 1, 1945
US Navy photo, 80-G-K-3844
BB-42 USS Idaho in October 1941:
United States' BB-42 USS Idaho in October 1941
Imperial War Museum, A-5953

BB-42 USS Idaho at Hvalfjord, Iceland in November 1941:
United States' BB-42 USS Idaho at Hvalfjord, Iceland in November 1941
Imperial War Museum, A-6432

Design

The New Mexico class used a new hull design with a clipper style bow.1

Turrets

Flat plate armor was used for the turrets.1

Aircraft

The New Mexico class battleships had one3 / two catapults.1,4

Ships

BB-40 USS New Mexico

  • Manufacturer: New York Navy Yard1,3,4
  • April 23, 1917: Launched.1,2,3,4
  • May 20, 1918: Commissioned.4
  • August 15, 1918: Commissioned.3
  • 1930 - 1934: Rebuilt.1 New geared turbines.1 Secondary battery moved up a deck.1 Improved superstructure replaced cage masts.1
  • 1941: Anti-aircraft batteries increased.1
  • August 1941: Neutrality Patrol in Atlantic.1
  • Attu.1
  • Gilbert Islands.1
  • Kwajalein.1
  • Saipan.1
  • Guam.1
  • Lingayen Gulf.1
  • 1945: Eight 5" L/38.1 40 40 mm AA.1
  • Okinawa.1
  • June 1, 1945: Bridge hit by kamikaze.1

BB-41 USS Mississippi

  • Manufacturer: Newport News1,4
  • January 25, 1917: Launched.1,2,4
  • December 18, 1917: Commissedion.4
  • 1930 - 1934: Rebuilt.1 New geared turbines.1 Secondary battery moved up a deck.1 Improved superstructure replaced cage masts.1
  • 1941: Anti-aircraft batteries increased.1
  • August 1941: Neutrality Patrol in Atlantic.1
  • Attu.1
  • Gilbert Islands.1
  • Kawjalein.1
  • Palau.1
  • Leyte.1
  • Surigao Strait.1
  • Lingayen.1
  • 1945: Eight 5" L/38.1 40 40 mm AA.1
  • Okinawa.1

BB-42 Idaho

  • Manufacturer: New York Shipbuilding1,3, New York Navy Yard4
  • June 30, 1917: Launched.1,2,3,4
  • March 24, 1919: Commissioned.3,4
  • 1930 - 1934: Rebuilt.1 New geared turbines.1 Secondary battery moved up a deck.1 Improved superstructure replaced cage masts.1
  • 1941: Anti-aircraft batteries increased.1
  • August 1941: Neutrality Patrol in Atlantic.1
  • Attu.1
  • Gilbert Islands.1
  • Kawjalein.1
  • Saipan.1
  • Guam.1
  • Palau.1
  • 1945: Ten 5" L/38.1 40 40 mm AA.1
  • January 6, 1945: Bridge hit by bomb.3
  • Iwo Jima.1
  • Okinawa.1

Usage

None of the New Mexico class battleships were at Pearl Harbor on December 7, 1941.3

 

 

Specifications

  New Mexico Class
Crew 1,0844, 1,9301
Displacement 32,000 tons2,4, 33,400 tons1,3, 33,420 tons2
Displacement - Loaded 33,000 tons4, 36,157 tons2
Physical Characteristics  
Length 624'1,2.4
190.19 m2, 190.2 m4
Length - Water Line 600'1,2,4
182.88 m2, 182.9 m4
Length - Between Perpendiculars  
Beam 97' 5"4, 106' 3"2, 106' 9"1
29.7 m4, 32.38 m2
Draft / Height 29' 6"1, 30'4
9.1 m4
Draft / Height - Full Load 31'2
9.44 m2
Performance  
Speed 21 knots4, 21.5 knots3, 21.75 knots1, 22 knots2
Range  
Range at 10 knots 8,000 nautical miles4
Armament 14" triple mounts: 41,4
14" L/50 Mk IV: 123
5": 121, 224
5" L/38: 83
3": 44
Anti-Aircraft 5": 121
5" L/51: 63
Torpedo Tubes 21": 24
Aircraft 04, 31,3
Armor  
Belt 14"1
Bulkheads  
Deck  
Turrets 18"1
Engines  
Boilers Babcock & Wilcox: 94
Bureau Express: 42
Shafts 41,3,4
Turbines Curtis4
Geared1
Westinghouse Geared3
HP 32,0004, 40,0001,2,3
Oil 2,200 tons3,4
  New Mexico Class 1933
Crew 1,4434
Displacement 33,420 tons4
Displacement - Loaded 36,157 tons4
Physical Characteristics  
Length  
Length - Water Line  
Length - Between Perpendiculars  
Beam 106' 2"4
32.35 m4
Draft / Height  
Draft / Height - Full Load  
Performance  
Speed 21 knots4
Range  
Range at 10 knots  
Armament 14" triple mounts: 44
5": 124
Anti-Aircraft 5": 84
0.5" Machine Guns: 84
Aircraft 34
Torpedo Tubes 04
Armor  
Fire Rooms +1.25"4
Second Deck +2"4
Torpedo Bulkhead +0.75"4
Engines  
Boilers  
Shafts 44
Turbines Westinghouse Geared4
HP 40,0004
Oil 3,795 tons4
  USS Idaho
Crew  
Displacement  
Displacement - Loaded  
Physical Characteristics  
Length  
Length - Water Line  
Length - Between Perpendiculars  
Beam  
Draft / Height  
Draft / Height - Full Load  
Performance  
Speed  
Range  
Range at 10 knots  
Armament  
Anti-Aircraft  
Aircraft  
Armor  
Belt  
Turrets  
Engines  
Boilers Bureau Express: 63
Boilers - 1933 Bureau Express: 64
Shafts  
Turbines Parsons4
HP  
Oil  
  USS Mississippi
Crew 1,4432
Displacement 33,000 tons1
Displacement - Loaded  
Physical Characteristics  
Length 625' 9"1
Length - Water Line  
Length - Between Perpendiculars  
Beam  
Draft / Height  
Draft / Height - Full Load  
Performance  
Speed  
Range  
Range at 10 knots  
Armament  
Anti-Aircraft  
Aircraft  
Armor  
Belt  
Turrets  
Engines  
Boilers - 1933 Bureau Express: 64
Shafts  
Turbines  
HP  
Oil  
  USS New Mexico
Crew  
Displacement  
Displacement - Loaded  
Physical Characteristics  
Length  
Length - Water Line  
Length - Between Perpendiculars  
Beam  
Draft / Height  
Draft / Height - Full Load  
Performance  
Speed  
Range  
Range at 10 knots  
Armament  
Anti-Aircraft  
Aircraft  
Armor  
Belt  
Turrets  
Engines  
Boilers White-Forster: 43
Boilers - 1933 White-Forster: 44
Shafts  
Turbines General Electric4
HP 27,0004
Oil  

Sources:

  1. US Warships of World War 2, Paul H. Silverstone, 1965
  2. Conway's All the World's Fighting Ships 1922-1946, Robert Gardiner, 1987
  3. Janes' Fighting Ships of World War II, 1989
  4. Battleships of World War Two an International Encyclopedia, M. J. Whitley, 1998
20th Century American Military History Crucial Site