Nevada 1916
| No | Name | Builder | Laid down | Launched | Comm | Fate |
| BB36 | Nevada | Fore River, Quincy | 4/11/1912 | 11/7/1914 | 11/3/1916 | target for nuclear tests 2/1946 |
| BB37 | Oklahoma | New York SB, Camden | 26/10/1912 | 23/3/1914 | 2/5/1916 | sunk 7/12/1941 |
|
Displacement normal, t |
27500 |
|
Displacement full, t |
28400 |
|
Length, m |
175.3 wl 177.7 oa |
|
Breadth, m |
29.1 |
|
Draught, m |
8.70 |
|
No of shafts |
2 |
|
Machinery |
BB36: Curtis steam turbines, 12 Yarrow boilers BB37: VTE, 12 Babcock & Wilcox boilers |
|
Power, h. p. |
BB36: 26500 BB37: 24800 |
|
Max speed, kts |
20.5 |
|
Fuel, t |
oil 2030 |
|
Armour, mm |
belt: 343 - 203, bulkheads: 330 - 203, deck: 76, (63 aft), splinter deck: 51 - 25, barbettes: 330, áàøíè: 457 (triple) or 406 (twin) face, 254 - 229 sides, 127 crowns, 229 rear, CT: 406 sides, 203 roof |
|
Armament |
2 x 3 - 356/45 Mk 1/2/3/5, 2 x 2 - 356/45 Mk 1/2/3/5, 21 x 1 - 127/51 Mk 7/8/9/14/15, 2 - 533 TT (beam) |
|
Complement |
864 |
Ship project history: Nevada and Oklahoma, built under 1912 program, were first American battleships, armour protection of which had been fulfilled under the scheme "all or nothing" in which basis the concept of battle on the big distances was included. The 343mm belt was protected 120m length, ending by transverse bulkheads of the same thickness. The armour deck had no slopes, and arranged over a belt. Except this citadel, only turrets, steering gear in the stern and CT were armoured. Remaining parts of the ship, for example secondary guns, were not protected in general. As well as the ships of previous class, they carried 10 356mm guns, but in the project of new battleships they have refused amidships turret, having returned to the superfiring arrangement of turrets in ship ends (as on Michigan class), end turrets were triple and superfiring turrets were twin. The economy of weight at the expense of placing of guns in four turrets instead of five has gone on protection gain, besides the dangerous affinity of magazines to boiler rooms was removed.
Ship protection: 122m belt had 5.3m height and was 343mm thick at upper part tapering to 203mm at lower edge. Belt was connected with end barbettes by 320mm bulkheads. There was 2.6m in height 203mm belt at 18.3m length aft from aft bulkhead, protecting steering gear, it was closed aft by 229mm bulkhead. Flat main armour deck was connected with upper edge of belt and was 89mm over citadel. One level lower was 38mm splinter deck with 51mm slopes, slopes were connected with lower edge of belt. This deck was 63mm thick aft from citadel, protecting steering gear. Main gun turrets had 457mm (triple) or 406mm (twin) faces, 254-229mm sides, 229mm rears and 127mm crowns. Barbettes were 330mm over and 114mm under main deck. CT had 406mm sides and 127mm roof. Underwater protection was 3.0m deep. There was 38mm longitudinal bulkhead.
Modernizations: 1916, both: + 2 x 1 - 76/50 Mk 10 AA
1919 - 1920, both: + 6 x 1 - 76/50 Mk 10 AA
late 1922, both: + 1 catapult with 1 seaplane (MO or UO)
(8/1927 - 1/1930, Norfolk NYd) Nevada, (9/1927 - 7/1929, Philadelphia NYd) Oklahoma were modernized as follows. New machinery and boilers were fitted, horizontal armour was strengthened, part of secondary guns was moved one deck up. Maximal main guns elevation angle was increased up to 30°.
Oklahoma 1941
Oklahoma 1941
Nevada 1945
|
Displacement standard, t |
29067 |
|
Displacement full, t |
31706 |
|
Length, m |
175.6 wl 177.7 oa |
|
Breadth, m |
32.9 |
|
Draught, m |
9.04 full load |
|
No of shafts |
2 |
|
Machinery |
BB36: Parsons geared steam turbines, 6 Bureau Express boilers BB37: VTE, 6 Bureau Express boilers |
|
Power, h. p. |
25000 |
|
Max speed, kn |
20.5 |
|
Fuel, t |
oil 3148 (6274 max) |
|
Endurance, nm(kts) |
10000(10) |
|
Armour, mm |
belt: 343 - 203, bulkheads: 330 - 203, deck: 127, splinter deck: 51 - 25, barbettes: 330, turrets: 457 (triple) or 406 (twin) face, 229 sides, CT: 406 |
|
Armament |
2 x 3 - 356/45 Mk 8/9/10/12, 2 x 2 - 356/45 Mk 8/9/10/12, 12 x 1 - 127/51 Mk 7/8/9/14/15, 8 x 1 - 127/25 Mk 10/11/13, 2 catapults, 3 seaplanes (OJ, O2U) |
|
Complement |
1374 |
Ship protection after modernization: 122m belt had 5.3m height and was 343mm thick at upper part tapering to 203mm at lower edge. Belt was connected with end barbettes by 320mm bulkheads. There was 2.6m in height 203mm belt at 18.3m length aft from aft bulkhead, protecting steering gear, it was closed aft by 229mm bulkhead. Flat main armour deck was connected with upper edge of belt and was 127mm over citadel. One level lower was 38mm splinter deck with 76mm slopes, slopes were connected with lower edge of belt. This deck was 63mm thick aft from citadel, protecting steering gear. Main gun turrets had 457mm (triple) or 406mm (twin) faces, 254-229mm sides, 229mm rears and 127mm crowns. Barbettes were 330mm over and 114mm under main deck. CT had 406mm sides and 203mm roof. Underwater protection was 5.8m deep. There was 38mm longitudinal bulkhead.
Modernizations: 1941, Oklahoma: + 4 x 1 - 76/50 Mk 10/19/20/21
(12/1941 - 10/1942), Nevada: - 12 x 1 - 127/51, 8 x 1 - 127/25, 1 catapult; + 8 x 2 - 127/38 Mk 12, 8 x 4 - 40/56 Bofors, 16 x 1 - 20/70 Oerlikon, SC, SG, Mk 3, 4 x Mk 4 radars; full displacement was 35400 t
summer 1944, Nevada: + 1 x 4 - 40/56 Bofors, 22 x 1 - 20/70 Oerlikon
11/1944, Nevada: - 33 x 1 - 20/70 Oerlikon; + 1 x 4 - 40/56 Bofors, 20 x 2 - 20/70 Oerlikon
Naval service: Oklahoma was sunk in Pearl Harbor by B5N2 bombers from Akagi: she has received 4 torpedoes, overturned and sunk. Later, 6/11/1943 wreck was salvaged and used till 1947 as hulk. Nevada 7/12/1941 was badly damaged during Japanese aircraft raid to Pearl Harbour; she received hits of one air torpedo and 2-3 bombs and ran aground, she was salvaged 12/2/1942 and repaired till the beginning of spring of 1943.
Oklahoma 1930
Nevada 1944
© Ivan Gogin, 2008-10