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  1. Britannia Proposal 2, United Kingdom Battlecruiser laid down 1917
  2.  
  3. Displacement:
  4. 55,091 t light; 58,907 t standard; 60,521 t normal; 61,811 t full load
  5.  
  6. Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
  7. (856.00 ft / 856.00 ft) x 110.00 ft x (38.00 / 38.66 ft)
  8. (260.91 m / 260.91 m) x 33.53 m x (11.58 / 11.78 m)
  9.  
  10. Armament:
  11. 9 - 18.00" / 457 mm 42.0 cal guns - 3,329.00lbs / 1,510.01kg shells, 150 per gun
  12. Breech loading guns in turret on barbette mounts, 1917 Model
  13. 3 x 3-gun mounts on centreline ends, majority forward
  14. 1 raised mount - superfiring
  15. 12 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 150 per gun
  16. Quick firing guns in casemate mounts, 1917 Model
  17. 12 x Single mounts on side ends, evenly spread
  18. 12 hull mounts in casemates- Limited use in heavy seas
  19. Weight of broadside 31,268 lbs / 14,183 kg
  20.  
  21. Armour:
  22. - Belts: Width (max) Length (avg) Height (avg)
  23. Main: 15.0" / 381 mm 450.00 ft / 137.16 m 23.50 ft / 7.16 m
  24. Ends: 4.00" / 102 mm 406.00 ft / 123.75 m 12.35 ft / 3.76 m
  25. Upper: 4.00" / 102 mm 556.40 ft / 169.59 m 8.00 ft / 2.44 m
  26. Main Belt covers 81 % of normal length
  27. Main belt does not fully cover magazines and engineering spaces
  28. Main Belt inclined 15.00 degrees (positive = in)
  29.  
  30. - Torpedo Bulkhead - Additional damage containing bulkheads:
  31. 2.00" / 51 mm 556.40 ft / 169.59 m 32.77 ft / 9.99 m
  32. Beam between torpedo bulkheads 89.00 ft / 27.13 m
  33.  
  34. - Hull void:
  35. 2.00" / 51 mm 450.00 ft / 137.16 m 15.00 ft / 4.57 m
  36.  
  37. - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
  38. Main: 15.0" / 381 mm 12.0" / 305 mm 12.0" / 305 mm
  39.  
  40. - Armoured deck - multiple decks:
  41. For and Aft decks: 8.00" / 203 mm
  42. Forecastle: 2.00" / 51 mm Quarter deck: 2.00" / 51 mm
  43.  
  44. Machinery:
  45. Oil fired boilers, steam turbines,
  46. Direct drive, 4 shafts, 184,300 shp / 137,488 Kw = 30.00 kts
  47. Range 7,000nm at 10.00 kts
  48. Bunker at max displacement = 2,904 tons
  49.  
  50. Complement:
  51. 1,929 - 2,508
  52.  
  53. Cost:
  54. £9.361 million / $37.446 million
  55.  
  56. Distribution of weights at normal displacement:
  57. Armament: 4,681 tons, 7.7 %
  58. - Guns: 4,681 tons, 7.7 %
  59. Armour: 22,407 tons, 37.0 %
  60. - Belts: 8,537 tons, 14.1 %
  61. - Torpedo bulkhead: 1,349 tons, 2.2 %
  62. - Void: 500 tons, 0.8 %
  63. - Armament: 4,210 tons, 7.0 %
  64. - Armour Deck: 7,811 tons, 12.9 %
  65. Machinery: 6,756 tons, 11.2 %
  66. Hull, fittings & equipment: 21,247 tons, 35.1 %
  67. Fuel, ammunition & stores: 5,429 tons, 9.0 %
  68. Miscellaneous weights: 0 tons, 0.0 %
  69.  
  70. Overall survivability and seakeeping ability:
  71. Survivability (Non-critical penetrating hits needed to sink ship):
  72. 75,878 lbs / 34,418 Kg = 26.0 x 18.0 " / 457 mm shells or 10.5 torpedoes
  73. Stability (Unstable if below 1.00): 1.11
  74. Metacentric height 7.0 ft / 2.1 m
  75. Roll period: 17.4 seconds
  76. Steadiness - As gun platform (Average = 50 %): 56 %
  77. - Recoil effect (Restricted arc if above 1.00): 0.92
  78. Seaboat quality (Average = 1.00): 1.12
  79.  
  80. Hull form characteristics:
  81. Hull has a flush deck,
  82. a normal bow and a cruiser stern
  83. Block coefficient (normal/deep): 0.592 / 0.594
  84. Length to Beam Ratio: 7.78 : 1
  85. 'Natural speed' for length: 29.26 kts
  86. Power going to wave formation at top speed: 50 %
  87. Trim (Max stability = 0, Max steadiness = 100): 50
  88. Bow angle (Positive = bow angles forward): 0.00 degrees
  89. Stern overhang: 0.00 ft / 0.00 m
  90. Freeboard (% = length of deck as a percentage of waterline length):
  91. Fore end, Aft end
  92. - Forecastle: 25.00 %, 32.18 ft / 9.81 m, 26.33 ft / 8.03 m
  93. - Forward deck: 30.00 %, 26.33 ft / 8.03 m, 21.48 ft / 6.55 m
  94. - Aft deck: 20.00 %, 21.48 ft / 6.55 m, 21.48 ft / 6.55 m
  95. - Quarter deck: 25.00 %, 21.48 ft / 6.55 m, 21.48 ft / 6.55 m
  96. - Average freeboard: 24.01 ft / 7.32 m
  97.  
  98. Ship space, strength and comments:
  99. Space - Hull below water (magazines/engines, low = better): 90.0 %
  100. - Above water (accommodation/working, high = better): 154.8 %
  101. Waterplane Area: 68,354 Square feet or 6,350 Square metres
  102. Displacement factor (Displacement / loading): 105 %
  103. Structure weight / hull surface area: 236 lbs/sq ft or 1,152 Kg/sq metre
  104. Hull strength (Relative):
  105. - Cross-sectional: 0.97
  106. - Longitudinal: 1.32
  107. - Overall: 1.00
  108. Adequate machinery, storage, compartmentation space
  109. Excellent accommodation and workspace room
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