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Montana Class Battleships Class Overview |
Dimensions, machinery and performance (as designed) |
Length: |
921' 5" |
Engines: |
4 Westinghouse geared steam turbines |
Beam: |
121' |
Boilers: |
12 Babcock & Wilcox (oil fired) |
Draft: |
38' |
Shafts: |
4 |
Displacement: |
65,000 std. / 70,500 full |
HP: |
172,000 |
Speed: |
28 knots |
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Crew: |
3,000 |
Range: |
15,000 NM @ 12 knots |
Armament (as designed) |
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Number Carried
|
Type
|
Arrangement |
Maximum Range / Ceiling |
12 |
16"/50 (406mm) Mk 7 |
4 triple turrets |
42,345 yards @ 45° (24 miles) 2,700 lb. HE shell Rate of fire 2 RPM |
20 |
5"/38 (127mm) Mk 12 |
10 twin turrets |
17,392 yards @ 45° (9.8 miles) AA ceiling 37,200' 53-55.18 lb shells Rate of fire 15-22 RPM |
40 |
1.57"/56 (40mm) |
10 quad mounts |
11,133 yards @ 45° (6.3 miles) AA ceiling 22,299' 1.985 lb. HE shell Rate of fire 130-160 RPM |
42-48 |
.79"/70 (20mm) AA machine guns |
single mounts |
4,800 yards @ 45° (2.7 miles) AA ceiling 10,000' .271 lb. HE shell Rate of fire 250-320 RPM |
2 |
Torpedo tubes |
single launchers |
N/A |
4 |
Aircraft |
Name |
Builder (Planned) |
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Philadelphia Naval Shipyard |
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Philadelphia Naval Shipyard |
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New York Naval Shipyard |
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New York Naval Shipyard |
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Norfolk Naval Shipyard |
Construction was suspended on all Montana Class ships on May 20, 1942 and cancelled on July 21, 1943 before they were laid down. |
Note: Even though two battleships were named Montana neither one was ever completed. |
Page revised Sept. 8, 2007 |