New Mexico Class
NEW MEXICO (BB- 40)
MISSISSIPPI (BB- 41)
IDAHO (BB- 42)


BB-40

BB-41

BB-42
1st Commanding Officer:

Capt. A.H. Robertson

Capt. J.L. Lane

Capt. C.T. Vogelgesang
Authorised:

June 30, 1914

June 30, 1914

June 30, 1914
Keel Laid:

Oct. 14, 1915

April 5, 1915

Jan. 20, 1915
Launched:

April 13, 1917

Jan. 25, 1917

June 30, 1917
Commissioned:

May 20, 1918

Dec. 18, 1917

March 24, 1919
Sponsor:

Miss Margaret C. De Baca

Miss Camelle McBeath

Miss H.A. Limons
Builder:

New York Navy Yard, Brooklyn, New York

Newport News Shipbuilding Co., Newport News, Virginia

New York Shipbuilding Co., Camden, New Jersey
Original Engines Manufactured:

Curtiss Turbine General Electric Drive

Curtis (Newport News) cruising turbines

Parsons (New York Shipbuilding) cruising turbines
Original Boilers Manufactured:

Babcock & Wilcox type: WT; no.9

Babcock & Wilcox type: WT; no.9

Babcock & Wilcox type: WT; no.9
Original Fuel:

Oil, 3277 tons (983,100 gallons)

Oil, 3277 tons (983,100 gallons)

Oil, 3277 tons (983,100 gallons)
Drive:

Turbo-electric, 4 screws

Turbine drive, 4 screws

Turbine drive, 4 screws
Designed Speed:

21 knots

21 knots

21 knots
Designed Shaft Horsepower:

27,500

32,000

32,000
Design Comments:

First-class Battleship; oil-fired boilers

First-class Battleship; oil-fired boilers; modernized from March 30, 1931 to Sept. 1, 1933

First-class Battleship; oil-fired boilers
Displacement Standard Tons:

32,000

32,000

32,000
Displacement Full Load Tons:

33,000

33,000

33,000
Design Crew Complement:

58 officers
1026 enlisted
1560 for war service

55 officers
1026 enlisted
1600 for war service

55 officers
1026 enlisted
1600 for war service
Construction Cost:

$7.8 milion + armor and armament

$7.8 milion + armor and armament

$7.8 milion + armor and armament
Length:

(w.l.) 600' , (o.a.) 624'

(w.l.) 600' , (o.a.) 624'

(w.l.) 600' , (o.a.) 624'
Beam:

97'5"

97'5"

97'5"
Draught:

30'

30'

30'
Guns:

12-14 inch, 50 cal., Mk. IV.
(34,000-yard range with AP rouns)
14 -5 inch, 51 cal.
4 - 3 inch, 50 cal.
Many 40 mm. and 20 mm. AA.

12-14 inch, 50 cal., Mk. IV.
(34,000-yard range with AP rouns)
14 -5 inch, 51 cal.
4 - 3 inch, 50 cal.
Many 40 mm. and 20 mm. AA.

12-14 inch, 50 cal., Mk. IV.
(34,000-yard range with AP rouns)
14 -5 inch, 51 cal.
4 - 3 inch, 50 cal.
Many 40 mm. and 20 mm. AA.
Aircraft:

3

3

3
Catapults:

1on quarter deck.

1on quarter deck.

1on quarter deck.
Torpedo Tubes:

2-21" submerged
(Torpedo tubes removed)

2-21" submerged
(Torpedo tubes removed)

2-21" submerged
(Torpedo tubes removed)
Armour:

14" Belt (amidships)
8" Belt (aft)
*" Deck ends
15"-9" Funnel base
18"-9" Turrets
16" Conning tower & tube
*(reported as 6" upper and 4" lower over vital areas)
(Bulges fitted, 1934-36)

14" Belt (amidships)
8" Belt (aft)
*" Deck ends
15"-9" Funnel base
18"-9" Turrets
16" Conning tower & tube
*(reported as 6" upper and 4" lower over vital areas)
(Bulges fitted, 1934-36)

14" Belt (amidships)
8" Belt (aft)
*" Deck ends
15"-9" Funnel base
18"-9" Turrets
16" Conning tower & tube
*(reported as 6" upper and 4" lower over vital areas)
(Bulges fitted, 1934-36)
Final Disposition: Stricken from the Navy list on Oct. 13, 1947; sold for scrapping to Lipsett, Inc. , New York CIty Sold for scrap to Bethlehem Steel on Nov. 28, 1956 Dec. 7, 1945 mothballed at Philadelphia; decommissioned on Feb. 14, 1947; March 1, 1959 stricken from the Navy List; July 10, 1959 sold to Bethlehem Steel for scrapping
Commendations:

Six Battle Stars in WW2

Eight Battle Stars in WW2, WW2 Navy Unit Commendation

Ten Battle Stars in WW2, WW2 Navy Unit Commendation


WW2 History Highlights:
BB-40
- December, 1940 Pacific Fleet; May, 1941 Pacific Fleet at Pearl Harbour; May, 1941 to the Altantic Fleet
- January, 1942 to the Pacific Fleet; May, 1943 to Adak, Alaska to expel the Japanese; November, 1943 invasion of the Gilberts
- January, 1944 invasion of the Marshall Islands; June, 1944 bombarded Tinian, Saipan and Guam
- Jan. 2-6, 1945 damaged during the invasion of Luzon during fire support
- May 12, 1945 damaged by kamikadze with 54 killed and 199 wounded
- At Tokyo Bay on Sept. 2, 1945 during Japanese surrender ceremonies
BB-41
- 1934-41 Pacific Fleet
- June 15, 1941 to Dec. 9, 1941 Atlantic Fleet convoys; Dec. 9, 1941 to Sept. 6, 1945 Pacific Fleet; May 10, 1943 Aleutians Islands
- Nov. 20, 1943 a turret explosion killed 43 men during the bombardment of Makin Island
- Jan. 31, 1944 Marshall Islands; Sept. 12, 1944 Palau Islands, October, 1944 Battle of Surigao Strait
- June 5, 1945 kamikadze hits starboard side; Sept. 2, 1945 in Tokyo Bay to witness the signing of the surrender document
- Converted to AG-128 on Feb. 15, 1946, later to EAG-128; Prototype for later conversions to Iowa Class
- Decommissioned as BB-41 on Feb. 2, 1946; decommissioned as EAG-128 on Sept. 17, 1956
BB-42

- 1934 to June 6, 1941 with Pacific Fleet
- June, 1941 to Dec. 9, 1941 Atlantic Fleet; January, 1942-45 Pacific Fleet; April 7, 1943 Aleutian Islands
- November; 1943 Gilbert Islands; January, 1944 Kwajalein; June, 1944 Saipan
- June, 1944, Guam; September, 1944 Peleiu (Philippines); Oct. 22, 1944 at Bremerton for repairs
- Feb. 14 - March 7, 1945 in Tokyo Bay; witnessed the signing on the Missouri of the Japanese Surrender, Sept. 2, 1945; departing Sept. 6, 1945
- Nov. 16, 1945 to the Norfolk Navy Yard
- Decommissioned July 3, 1946; in reserve until Nov. 24, 1947



Special Note.- Idaho and New Mexico are to be discarded on completion of Kentucky and Hawaii, if not earlier.
Notes.
- These two ships were not at Pearl Harbour when the Japanese made their surprise attack on December 7, 1941, but have been modernised to a certain extent. New Mexico may differ slightly from Idaho, as she underwent further alterations after a severe bomb hit on the bridge, Jan.6, 1945. A third unit of this class, Mississippi, is being refitted as a gunnery training ship at Norfolk Navy Yard, 1947, to replace Wyoming (scrapped). Numbered AG 128.


NEW MEXICO


MISSISSIPPI


IDAHO