Los Angeles, United States Heavy Cruiser laid down 1940
Displacement:
18,251 t light; 19,096 t standard; 20,860 t normal; 22,272 t full load
Dimensions: Length overall / water x beam x draught
728.78 ft / 720.00 ft x 84.00 ft x 24.00 ft (normal load)
222.13 m / 219.46 m x 25.60 m x 7.32 m
Armament:
12 - 8.00" / 203 mm guns (4x3 guns), 335.00lbs / 151.95kg shells, 1940 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 5.00" / 127 mm guns (6x2 guns), 55.12lbs / 25.00kg shells, 1940 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
4 - 5.00" / 127 mm guns (2x2 guns), 55.12lbs / 25.00kg shells, 1940 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts
40 - 1.10" / 27.9 mm guns (10x4 guns), 0.67lbs / 0.30kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
52 - 0.50" / 12.7 mm guns (26x2 guns), 0.06lbs / 0.03kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 18 raised mounts
Weight of broadside 4,932 lbs / 2,237 kg
Shells per gun, main battery: 150
12 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 8.00" / 203 mm 438.48 ft / 133.65 m 11.00 ft / 3.35 m
Ends: Unarmoured
Main Belt covers 94 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.00" / 203 mm 3.00" / 76 mm 6.30" / 160 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
3rd: 2.00" / 51 mm 2.00" / 51 mm 2.00" / 51 mm
- Armour deck: 4.00" / 102 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 115,934 shp / 86,486 Kw = 32.50 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 3,175 tons
Complement:
867 - 1,128
Cost:
£9.021 million / $36.083 million
Distribution of weights at normal displacement:
Armament: 513 tons, 2.5 %
Armour: 5,716 tons, 27.4 %
- Belts: 1,648 tons, 7.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 959 tons, 4.6 %
- Armour Deck: 3,110 tons, 14.9 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 3,100 tons, 14.9 %
Hull, fittings & equipment: 8,522 tons, 40.9 %
Fuel, ammunition & stores: 2,610 tons, 12.5 %
Miscellaneous weights: 400 tons, 1.9 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
34,736 lbs / 15,756 Kg = 135.7 x 8.0 " / 203 mm shells or 3.5 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 4.6 ft / 1.4 m
Roll period: 16.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.50
Seaboat quality (Average = 1.00): 1.17
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.503
Length to Beam Ratio: 8.57 : 1
'Natural speed' for length: 30.99 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 60
Bow angle (Positive = bow angles forward): 7.00 degrees
Stern overhang: 4.36 ft / 1.33 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 36.00 ft / 10.97 m
- Forecastle (21 %): 23.00 ft / 7.01 m
- Mid (50 %): 21.00 ft / 6.40 m
- Quarterdeck (18 %): 21.00 ft / 6.40 m
- Stern: 24.00 ft / 7.32 m
- Average freeboard: 23.08 ft / 7.03 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 70.5 %
- Above water (accommodation/working, high = better): 171.1 %
Waterplane Area: 42,023 Square feet or 3,904 Square metres
Displacement factor (Displacement / loading): 127 %
Structure weight / hull surface area: 141 lbs/sq ft or 690 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.31
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform