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Coronation-Class Battlecruiser [1908] (Mazantsi)

pointlessbluearrow Feb 21st, 2020 120 Never
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  1. Coronation-Class, Mazantsi Dominion Battlecruiser laid down 1908
  2.  
  3. Displacement:
  4.     22,724 t light; 23,958 t standard; 26,951 t normal; 29,344 t full load
  5.  
  6. Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
  7.     (672.00 ft / 658.00 ft) x 92.00 ft x (26.50 / 28.41 ft)
  8.     (204.83 m / 200.56 m) x 28.04 m  x (8.08 / 8.66 m)
  9.  
  10. Armament:
  11.       10 - 12.00" / 305 mm 45.0 cal guns - 871.37lbs / 395.24kg shells, 100 per gun
  12.       Breech loading guns in turret on barbette mounts, 1903 Model
  13.       5 x Twin mounts on centreline, evenly spread
  14.         2 raised mounts
  15.       12 - 6.25" / 159 mm 47.0 cal guns - 126.98lbs / 57.60kg shells, 250 per gun
  16.       Quick firing guns in casemate mounts, 1907 Model
  17.       12 x Single mounts on sides, evenly spread
  18.       Weight of broadside 10,237 lbs / 4,644 kg
  19.       Main Torpedoes
  20.       4 - 20.0" / 508 mm, 20.00 ft / 6.10 m torpedoes - 1.145 t each, 4.580 t total
  21.     submerged bow & stern tubes
  22.       2nd Torpedoes
  23.       4 - 20.0" / 508 mm, 20.00 ft / 6.10 m torpedoes - 1.145 t each, 4.580 t total
  24.     below water reloads
  25.  
  26. Armour:
  27.    - Belts:     Width (max) Length (avg)        Height (avg)
  28.     Main:   8.50" / 216 mm  550.00 ft / 167.64 m    11.51 ft / 3.51 m
  29.     Ends:   4.00" / 102 mm  108.00 ft / 32.92 m 11.51 ft / 3.51 m
  30.     Upper:  4.00" / 102 mm  550.00 ft / 167.64 m    8.00 ft / 2.44 m
  31.       Main Belt covers 129 % of normal length
  32.  
  33.    - Torpedo Bulkhead - Strengthened structural bulkheads:
  34.         2.20" / 56 mm   550.00 ft / 167.64 m    20.87 ft / 6.36 m
  35.     Beam between torpedo bulkheads 62.00 ft / 18.90 m
  36.  
  37.    - Gun armour:    Face (max)  Other gunhouse (avg)    Barbette/hoist (max)
  38.     Main:   12.0" / 305 mm  8.00" / 203 mm      6.00" / 152 mm
  39.     2nd:    3.00" / 76 mm   1.00" / 25 mm             -
  40.  
  41.    - Armoured deck - multiple decks:
  42.     For and Aft decks: 3.25" / 83 mm
  43.     Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm
  44.  
  45.    - Conning towers: Forward 12.00" / 305 mm, Aft 0.00" / 0 mm
  46.  
  47. Machinery:
  48.     Coal and oil fired boilers, steam turbines,
  49.     Geared drive, 4 shafts, 82,514 shp / 61,555 Kw = 27.00 kts
  50.     Range 9,000nm at 12.00 kts
  51.     Bunker at max displacement = 5,386 tons (75% coal)
  52.  
  53. Complement:
  54.     1,051 - 1,367
  55.  
  56. Cost:
  57.     £2.310 million / $9.240 million
  58.  
  59. Distribution of weights at normal displacement:
  60.     Armament: 1,834 tons, 6.8 %
  61.        - Guns: 1,819 tons, 6.7 %
  62.        - Weapons: 15 tons, 0.1 %
  63.     Armour: 8,244 tons, 30.6 %
  64.        - Belts: 3,094 tons, 11.5 %
  65.        - Torpedo bulkhead: 934 tons, 3.5 %
  66.        - Armament: 1,520 tons, 5.6 %
  67.        - Armour Deck: 2,464 tons, 9.1 %
  68.        - Conning Tower: 232 tons, 0.9 %
  69.     Machinery: 4,472 tons, 16.6 %
  70.     Hull, fittings & equipment: 8,073 tons, 30.0 %
  71.     Fuel, ammunition & stores: 4,227 tons, 15.7 %
  72.     Miscellaneous weights: 100 tons, 0.4 %
  73.        - Above deck: 100 tons
  74.  
  75. Overall survivability and seakeeping ability:
  76.     Survivability (Non-critical penetrating hits needed to sink ship):
  77.       34,026 lbs / 15,434 Kg = 39.4 x 12.0 " / 305 mm shells or 5.7 torpedoes
  78.     Stability (Unstable if below 1.00): 1.30
  79.     Metacentric height 7.0 ft / 2.1 m
  80.     Roll period: 14.6 seconds
  81.     Steadiness  - As gun platform (Average = 50 %): 57 %
  82.             - Recoil effect (Restricted arc if above 1.00): 0.46
  83.     Seaboat quality  (Average = 1.00): 1.15
  84.  
  85. Hull form characteristics:
  86.     Hull has a flush deck,
  87.       a ram bow and a cruiser stern
  88.     Block coefficient (normal/deep): 0.588 / 0.597
  89.     Length to Beam Ratio: 7.15 : 1
  90.     'Natural speed' for length: 25.65 kts
  91.     Power going to wave formation at top speed: 52 %
  92.     Trim (Max stability = 0, Max steadiness = 100): 50
  93.     Bow angle (Positive = bow angles forward): 5.00 degrees
  94.     Stern overhang: 4.00 ft / 1.22 m
  95.     Freeboard (% = length of deck as a percentage of waterline length):
  96.                 Fore end,    Aft end
  97.        - Forecastle:    20.00 %,  28.25 ft / 8.61 m,  23.00 ft / 7.01 m
  98.        - Forward deck:  30.00 %,  23.00 ft / 7.01 m,  17.90 ft / 5.46 m
  99.        - Aft deck:  35.00 %,  17.90 ft / 5.46 m,  17.90 ft / 5.46 m
  100.        - Quarter deck:  15.00 %,  17.90 ft / 5.46 m,  17.90 ft / 5.46 m
  101.        - Average freeboard:     20.11 ft / 6.13 m
  102.  
  103. Ship space, strength and comments:
  104.     Space   - Hull below water (magazines/engines, low = better): 126.1 %
  105.         - Above water (accommodation/working, high = better): 151.4 %
  106.     Waterplane Area: 43,781 Square feet or 4,067 Square metres
  107.     Displacement factor (Displacement / loading): 105 %
  108.     Structure weight / hull surface area: 162 lbs/sq ft or 789 Kg/sq metre
  109.     Hull strength (Relative):
  110.         - Cross-sectional: 0.98
  111.         - Longitudinal: 1.19
  112.         - Overall: 1.00
  113.     Cramped machinery, storage, compartmentation space
  114.     Excellent accommodation and workspace room
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