CA-32 New York City
CA-33 Atlanta
CA-34 Boston
CA-35 Charleston
CA-36 Norfolk
USS New York City, United States Heavy Cruiser laid down 1934
Displacement:
12,625 t light; 13,251 t standard; 14,757 t normal; 15,963 t full load
Dimensions: Length overall / water x beam x draught
679.74 ft / 672.00 ft x 70.00 ft x 21.70 ft (normal load)
207.18 m / 204.83 m x 21.34 m x 6.61 m
Armament:
12 - 8.00" / 203 mm guns (4x3 guns), 256.00lbs / 116.12kg shells, 1934 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 5.00" / 127 mm guns (2x2 guns), 62.50lbs / 28.35kg shells, 1934 Model
Dual purpose guns in deck mounts with hoists
on centreline, all amidships, all raised mounts - superfiring
8 - 5.00" / 127 mm guns (4x2 guns), 62.50lbs / 28.35kg shells, 1934 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
7 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1934 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 3,822 lbs / 1,734 kg
Shells per gun, main battery: 150
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.00" / 127 mm 423.02 ft / 128.94 m 10.04 ft / 3.06 m
Ends: Unarmoured
Main Belt covers 97 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.00" / 203 mm 2.75" / 70 mm 5.00" / 127 mm
2nd: 1.00" / 25 mm 1.00" / 25 mm 1.00" / 25 mm
3rd: 1.00" / 25 mm 1.00" / 25 mm 1.00" / 25 mm
- Armour deck: 2.25" / 57 mm, Conning tower: 5.00" / 127 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 90,013 shp / 67,150 Kw = 32.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 2,712 tons
Complement:
669 - 870
Cost:
£5.919 million / $23.677 million
Distribution of weights at normal displacement:
Armament: 478 tons, 3.2 %
Armour: 3,035 tons, 20.6 %
- Belts: 892 tons, 6.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 714 tons, 4.8 %
- Armour Deck: 1,364 tons, 9.2 %
- Conning Tower: 65 tons, 0.4 %
Machinery: 2,590 tons, 17.5 %
Hull, fittings & equipment: 6,373 tons, 43.2 %
Fuel, ammunition & stores: 2,133 tons, 14.5 %
Miscellaneous weights: 150 tons, 1.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
21,430 lbs / 9,720 Kg = 83.7 x 8.0 " / 203 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 3.7 ft / 1.1 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 57 %
- Recoil effect (Restricted arc if above 1.00): 0.63
Seaboat quality (Average = 1.00): 1.15
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.506
Length to Beam Ratio: 9.60 : 1
'Natural speed' for length: 29.66 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 7.80 degrees
Stern overhang: 2.60 ft / 0.79 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 37.50 ft / 11.43 m
- Forecastle (19 %): 24.40 ft / 7.44 m
- Mid (66 %): 20.90 ft / 6.37 m (13.90 ft / 4.24 m aft of break)
- Quarterdeck (18 %): 13.90 ft / 4.24 m
- Stern: 17.43 ft / 5.31 m
- Average freeboard: 21.30 ft / 6.49 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.6 %
- Above water (accommodation/working, high = better): 189.6 %
Waterplane Area: 32,776 Square feet or 3,045 Square metres
Displacement factor (Displacement / loading): 121 %
Structure weight / hull surface area: 130 lbs/sq ft or 634 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.27
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Official Standard Displacement listed as 13,000 tons, 1.89% "error".