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Basireus-Class Battleship [1909] (Serpentia)

pointlessbluearrow Mar 28th, 2020 115 Never
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  1. Basireus-Class, Serpentian Monarchy Battleship laid down 1909
  2.  
  3. Displacement:
  4.     17,825 t light; 18,977 t standard; 19,956 t normal; 20,738 t full load
  5.  
  6. Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
  7.     (583.99 ft / 574.15 ft) x 78.74 ft x (27.89 / 28.75 ft)
  8.     (178.00 m / 175.00 m) x 24.00 m  x (8.50 / 8.76 m)
  9.  
  10. Armament:
  11.       8 - 12.01" / 305 mm 50.0 cal guns - 916.46lbs / 415.70kg shells, 125 per gun
  12.       Breech loading guns in turret on barbette mounts, 1907 Model
  13.       2 x 2 row quad mounts on centreline, evenly spread
  14.       12 - 6.10" / 155 mm 47.0 cal guns - 121.25lbs / 55.00kg shells, 250 per gun
  15.       Quick firing guns in turret on barbette mounts, 1905 Model
  16.       6 x Twin mounts on sides, evenly spread
  17.         2 raised mounts
  18.       14 - 2.99" / 76.0 mm 45.0 cal guns - 17.64lbs / 8.00kg shells, 300 per gun
  19.       Quick firing guns in casemate mounts, 1895 Model
  20.       14 x Single mounts on sides, evenly spread
  21.         14 hull mounts in casemates- Limited use in heavy seas
  22.       4 - 1.50" / 38.0 mm 42.0 cal guns - 1.61lbs / 0.73kg shells, 300 per gun
  23.       Quick firing guns in deck mounts, 1899 Model
  24.       4 x Single mounts on centreline, evenly spread
  25.         4 double raised mounts
  26.       Weight of broadside 9,040 lbs / 4,101 kg
  27.       Main Torpedoes
  28.       4 - 15.0" / 380 mm, 18.04 ft / 5.50 m torpedoes - 0.618 t each, 2.471 t total
  29.     submerged bow & stern tubes
  30.       2nd Torpedoes
  31.       4 - 15.0" / 380 mm, 18.04 ft / 5.50 m torpedoes - 0.618 t each, 2.471 t total
  32.     below water reloads
  33.  
  34. Armour:
  35.    - Belts:     Width (max) Length (avg)        Height (avg)
  36.     Main:   12.0" / 305 mm  393.70 ft / 120.00 m    10.66 ft / 3.25 m
  37.     Ends:   6.10" / 155 mm  180.45 ft / 55.00 m 10.66 ft / 3.25 m
  38.     Upper:  7.87" / 200 mm  393.70 ft / 120.00 m    8.01 ft / 2.44 m
  39.       Main Belt covers 105 % of normal length
  40.  
  41.    - Torpedo Bulkhead - Strengthened structural bulkheads:
  42.         0.12" / 3 mm    393.70 ft / 120.00 m    24.61 ft / 7.50 m
  43.     Beam between torpedo bulkheads 59.06 ft / 18.00 m
  44.  
  45.    - Gun armour:    Face (max)  Other gunhouse (avg)    Barbette/hoist (max)
  46.     Main:   13.8" / 350 mm  13.8" / 350 mm      9.84" / 250 mm
  47.     2nd:    6.10" / 155 mm  3.94" / 100 mm      3.94" / 100 mm
  48.     3rd:    2.99" / 76 mm   0.98" / 25 mm             -
  49.     4th:    1.97" / 50 mm         -               -
  50.  
  51.    - Armoured deck - multiple decks:
  52.     For and Aft decks: 2.99" / 76 mm
  53.     Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm
  54.  
  55.    - Conning towers: Forward 14.17" / 360 mm, Aft 0.00" / 0 mm
  56.  
  57. Machinery:
  58.     Coal and oil fired boilers, steam turbines,
  59.     Direct drive, 4 shafts, 44,291 shp / 33,041 Kw = 24.00 kts
  60.     Range 5,000nm at 10.00 kts
  61.     Bunker at max displacement = 1,761 tons (90% coal)
  62.  
  63. Complement:
  64.     839 - 1,091
  65.  
  66. Cost:
  67.     £1.841 million / $7.364 million
  68.  
  69. Distribution of weights at normal displacement:
  70.     Armament: 2,162 tons, 10.8 %
  71.        - Guns: 2,154 tons, 10.8 %
  72.        - Weapons: 8 tons, 0.0 %
  73.     Armour: 7,064 tons, 35.4 %
  74.        - Belts: 3,602 tons, 18.1 %
  75.        - Torpedo bulkhead: 42 tons, 0.2 %
  76.        - Armament: 1,540 tons, 7.7 %
  77.        - Armour Deck: 1,655 tons, 8.3 %
  78.        - Conning Tower: 225 tons, 1.1 %
  79.     Machinery: 2,193 tons, 11.0 %
  80.     Hull, fittings & equipment: 6,306 tons, 31.6 %
  81.     Fuel, ammunition & stores: 2,131 tons, 10.7 %
  82.     Miscellaneous weights: 100 tons, 0.5 %
  83.        - Above deck: 100 tons
  84.  
  85. Overall survivability and seakeeping ability:
  86.     Survivability (Non-critical penetrating hits needed to sink ship):
  87.       23,130 lbs / 10,492 Kg = 26.7 x 12.0 " / 305 mm shells or 6.7 torpedoes
  88.     Stability (Unstable if below 1.00): 1.09
  89.     Metacentric height 4.1 ft / 1.3 m
  90.     Roll period: 16.3 seconds
  91.     Steadiness  - As gun platform (Average = 50 %): 56 %
  92.             - Recoil effect (Restricted arc if above 1.00): 0.68
  93.     Seaboat quality  (Average = 1.00): 1.12
  94.  
  95. Hull form characteristics:
  96.     Hull has a flush deck,
  97.       a ram bow and a cruiser stern
  98.     Block coefficient (normal/deep): 0.554 / 0.558
  99.     Length to Beam Ratio: 7.29 : 1
  100.     'Natural speed' for length: 23.96 kts
  101.     Power going to wave formation at top speed: 48 %
  102.     Trim (Max stability = 0, Max steadiness = 100): 50
  103.     Bow angle (Positive = bow angles forward): -4.00 degrees
  104.     Stern overhang: 0.00 ft / 0.00 m
  105.     Freeboard (% = length of deck as a percentage of waterline length):
  106.                 Fore end,    Aft end
  107.        - Forecastle:    20.00 %,  18.04 ft / 5.50 m,  16.40 ft / 5.00 m
  108.        - Forward deck:  30.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
  109.        - Aft deck:  35.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
  110.        - Quarter deck:  15.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
  111.        - Average freeboard:     16.54 ft / 5.04 m
  112.     Ship tends to be wet forward
  113.  
  114. Ship space, strength and comments:
  115.     Space   - Hull below water (magazines/engines, low = better): 104.6 %
  116.         - Above water (accommodation/working, high = better): 117.9 %
  117.     Waterplane Area: 31,669 Square feet or 2,942 Square metres
  118.     Displacement factor (Displacement / loading): 99 %
  119.     Structure weight / hull surface area: 161 lbs/sq ft or 788 Kg/sq metre
  120.     Hull strength (Relative):
  121.         - Cross-sectional: 0.96
  122.         - Longitudinal: 1.41
  123.         - Overall: 1.00
  124.     Adequate machinery, storage, compartmentation space
  125.     Adequate accommodation and workspace room
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