Southampton, anachronistic, Great Britain Light Cruiser laid down 1914 (Engine 1918)
Displacement:
5,028 t light; 5,231 t standard; 5,733 t normal; 6,135 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(458.84 ft / 454.00 ft) x 50.00 ft x (17.00 / 17.88 ft)
(139.85 m / 138.38 m) x 15.24 m x (5.18 / 5.45 m)
Armament:
9 - 6.00" / 152 mm 45.0 cal guns - 100.00lbs / 45.36kg shells, 150 per gun
Quick firing guns in turret on barbette mounts , 1914 Model
3 x Triple mounts on centreline ends, majority forward
2 raised mounts - superfiring
4 - 4.00" / 102 mm 45.0 cal guns - 32.00lbs / 14.51kg shells, 150 per gun
Anti-air guns in deck mounts , 1914 Model
2 x Twin mounts on sides, forward deck aft
20 - 1.57" / 40.0 mm 45.0 cal guns - 2.00lbs / 0.91kg shells, 150 per gun
Anti-air guns in deck mounts , 1914 Model
4 x 2 row quad mounts on sides, evenly spread
4 raised mounts
1 x 2 row quad mount on centreline, aft deck aft
Weight of broadside 1,068 lbs / 1,068 kg
4 - 21.0" / 533 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 300.00 ft / 91.44 m 16.00 ft / 4.88 m
Ends: Unarmoured
Main Belt covers 102 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.00" / 102 mm 3.00" / 76 mm 4.00" / 102 mm
- Armour deck: 2.00" / 51 mm, Conning tower: 4.00" / 102 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 22,139 shp / 16,516 Kw = 25.00 kts
Range 4,800nm at 15.00 kts
Bunker at max displacement = 904 tons
Complement:
329 - 428
Cost:
£0.495 million / $1.981 million
Distribution of weights at normal displacement:
Armament: 253 tons, 4.4 %
Armour: 1,720 tons, 30.0 %
- Belts: 805 tons, 14.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 295 tons, 5.1 %
- Armour Deck: 593 tons, 10.3 %
- Conning Tower: 28 tons, 0.5 %
Machinery: 799 tons, 13.9 %
Hull, fittings & equipment: 2,389 tons, 41.7 %
Fuel, ammunition & stores: 706 tons, 12.3 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
11,307 lbs / 5,129 Kg = 104.7 x 6.0 " / 152 mm shells or 2.1 torpedoes
Stability (Unstable if below 1.00): 1.01
Metacentric height 1.8 ft / 0.5 m
Roll period: 15.7 seconds
Steadiness - As gun platform (Average = 50 %): 85 %
- Recoil effect (Restricted arc if above 1.00): 0.87
Seaboat quality (Average = 1.00): 1.70
Hull form characteristics:
Hull has a flush deck,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.520 / 0.529
Length to Beam Ratio: 9.08 : 1
'Natural speed' for length: 24.44 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 6.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 27.00 ft / 8.23 m, 21.00 ft / 6.40 m
- Forward deck: 30.00 %, 21.00 ft / 6.40 m, 18.00 ft / 5.49 m
- Aft deck: 30.00 %, 18.00 ft / 5.49 m, 16.00 ft / 4.88 m
- Quarter deck: 20.00 %, 16.00 ft / 4.88 m, 17.00 ft / 5.18 m
- Average freeboard: 18.93 ft / 5.77 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 62.6 %
- Above water (accommodation/working, high = better): 148.8 %
Waterplane Area: 16,027 Square feet or 1,489 Square metres
Displacement factor (Displacement / loading): 134 %
Structure weight / hull surface area: 88 lbs/sq ft or 432 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.25
- 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
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