Worcester Class
Ships in Class
USS Worcester laid down 1944
USS Atlanta laid down 1944
USS Buffalo laid down 1944
USS Oklahoma City laid down 1945
more to come
USS Worcester, United States Light Cruiser laid down 1944
Displacement:
12,139 t light; 12,773 t standard; 14,377 t normal; 15,660 t full load
Dimensions: Length overall / water x beam x draught
648.57 ft / 640.00 ft x 65.00 ft x 24.00 ft (normal load)
197.69 m / 195.07 m x 19.81 m x 7.32 m
Armament:
12 - 6.00" / 152 mm guns (6x2 guns), 130.00lbs / 58.97kg shells, 1944 Model
Automatic rapid fire guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
24 - 3.00" / 76.2 mm guns (12x2 guns), 15.00lbs / 6.80kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, all amidships, 6 raised mounts - superfiring
12 - 1.50" / 38.1 mm guns (6x2 guns), 1.69lbs / 0.77kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0.75" / 19.1 mm guns (6x2 guns), 0.21lbs / 0.10kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 3 raised mounts
Weight of broadside 1,943 lbs / 881 kg
Shells per gun, main battery: 300
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.00" / 127 mm 416.00 ft / 126.80 m 10.09 ft / 3.08 m
Ends: Unarmoured
Main Belt covers 100 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.00" / 203 mm 4.00" / 102 mm 5.00" / 127 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm -
- Armour deck: 2.25" / 57 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 100,000 shp / 74,600 Kw = 32.92 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 2,888 tons
Complement:
656 - 853
Cost:
£6.607 million / $26.427 million
Distribution of weights at normal displacement:
Armament: 238 tons, 1.7 %
Armour: 2,883 tons, 20.1 %
- Belts: 875 tons, 6.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 804 tons, 5.6 %
- Armour Deck: 1,204 tons, 8.4 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 2,554 tons, 17.8 %
Hull, fittings & equipment: 5,864 tons, 40.8 %
Fuel, ammunition & stores: 2,238 tons, 15.6 %
Miscellaneous weights: 600 tons, 4.2 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
24,078 lbs / 10,922 Kg = 222.9 x 6.0 " / 152 mm shells or 2.5 torpedoes
Stability (Unstable if below 1.00): 1.03
Metacentric height 2.8 ft / 0.8 m
Roll period: 16.4 seconds
Steadiness - As gun platform (Average = 50 %): 85 %
- Recoil effect (Restricted arc if above 1.00): 0.66
Seaboat quality (Average = 1.00): 1.70
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.504
Length to Beam Ratio: 9.85 : 1
'Natural speed' for length: 28.89 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 32.00 ft / 9.75 m
- Forecastle (20 %): 27.00 ft / 8.23 m
- Mid (50 %): 27.00 ft / 8.23 m
- Quarterdeck (15 %): 27.00 ft / 8.23 m
- Stern: 27.00 ft / 8.23 m
- Average freeboard: 27.40 ft / 8.35 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 77.1 %
- Above water (accommodation/working, high = better): 226.8 %
Waterplane Area: 28,931 Square feet or 2,688 Square metres
Displacement factor (Displacement / loading): 137 %
Structure weight / hull surface area: 109 lbs/sq ft or 533 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.59
- 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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
210t for automated firing equipment
390t for other stuff.
Radar consists of: SR-2, SR-6, SG-6 and SP-1 for search, 2 MK-13, 4 MK-25, 4 MK-35, 6 MK-27's for fire control.