FANDOM


Constitution, Cascadian Dreadnought laid down 1912

Units: 4

  • CRS Constitution
  • CRS Republic
  • CRS Liberty
  • CRS Constellation


Displacement:
    29,234 t light; 31,213 t standard; 33,874 t normal; 36,004 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
    (659.58 ft / 640.00 ft) x 95.00 ft x (30.00 / 31.60 ft)
    (201.04 m / 195.07 m) x 28.96 m  x (9.14 / 9.63 m)

Armament:
      12 - 14.00" / 356 mm 45.0 cal guns - 1,400.00lbs / 635.03kg shells, 100 per gun
      Breech loading guns in turret on barbette mounts, 1912 Model
      4 x 3-gun mounts on centreline ends, evenly spread
        2 raised mounts - superfiring
      20 - 6.00" / 152 mm 50.0 cal guns - 114.33lbs / 51.86kg shells, 250 per gun
      Quick firing guns in casemate mounts, 1912 Model
      20 x Single mounts on sides, evenly spread
        14 hull mounts in casemates- Limited use in heavy seas
      8 - 3.00" / 76.2 mm 50.0 cal guns - 14.29lbs / 6.48kg shells, 800 per gun
      Anti-air guns in deck mounts, 1912 Model
      8 x Single mounts on side ends, evenly spread
      Weight of broadside 19,201 lbs / 8,709 kg
      Main Torpedoes
      2 - 21.0" / 533 mm, 21.35 ft / 6.51 m torpedoes - 1.351 t each, 2.701 t total
    submerged side tubes
      2nd Torpedoes
      12 - 21.0" / 533 mm, 21.35 ft / 6.51 m torpedoes - 1.351 t each, 16.209 t total
    below water reloads

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    13.0" / 330 mm    350.00 ft / 106.68 m    15.00 ft / 4.57 m
    Ends:    5.00" / 127 mm    290.00 ft / 88.39 m    15.00 ft / 4.57 m
    Upper:    6.00" / 152 mm    350.00 ft / 106.68 m    12.00 ft / 3.66 m
      Main Belt covers 84 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
        2.50" / 64 mm    380.00 ft / 115.82 m    27.15 ft / 8.28 m
    Beam between torpedo bulkheads 76.00 ft / 23.16 m

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    14.0" / 356 mm    10.0" / 254 mm        12.0" / 305 mm
    2nd:    6.00" / 152 mm    4.00" / 102 mm        4.00" / 102 mm
    3rd:    0.50" / 13 mm          -                  -

   - Armoured deck - single deck:
    For and Aft decks: 3.00" / 76 mm
    Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 12.00" / 305 mm, Aft 4.00" / 102 mm

Machinery:
    Oil fired boilers, steam turbines,
    Direct drive, 4 shafts, 50,000 shp / 37,300 Kw = 22.70 kts
    Range 9,000nm at 13.00 kts
    Bunker at max displacement = 4,791 tons

Complement:
    1,247 - 1,622

Cost:
    £2.977 million / $11.909 million

Distribution of weights at normal displacement:
    Armament: 3,936 tons, 11.6 %
       - Guns: 3,910 tons, 11.5 %
       - Weapons: 26 tons, 0.1 %
    Armour: 12,428 tons, 36.7 %
       - Belts: 5,036 tons, 14.9 %
       - Torpedo bulkhead: 954 tons, 2.8 %
       - Armament: 3,634 tons, 10.7 %
       - Armour Deck: 2,443 tons, 7.2 %
       - Conning Towers: 361 tons, 1.1 %
    Machinery: 1,994 tons, 5.9 %
    Hull, fittings & equipment: 10,858 tons, 32.1 %
    Fuel, ammunition & stores: 4,641 tons, 13.7 %
    Miscellaneous weights: 19 tons, 0.1 %
       - Hull below water: 19 tons

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      45,016 lbs / 20,419 Kg = 32.8 x 14.0 " / 356 mm shells or 7.4 torpedoes
    Stability (Unstable if below 1.00): 1.04
    Metacentric height 5.0 ft / 1.5 m
    Roll period: 17.8 seconds
    Steadiness    - As gun platform (Average = 50 %): 68 %
            - Recoil effect (Restricted arc if above 1.00): 0.95
    Seaboat quality  (Average = 1.00): 1.23

Hull form characteristics:
    Hull has a flush deck,
      a normal bow and a round stern
    Block coefficient (normal/deep): 0.650 / 0.656
    Length to Beam Ratio: 6.74 : 1
    'Natural speed' for length: 25.30 kts
    Power going to wave formation at top speed: 46 %
    Trim (Max stability = 0, Max steadiness = 100): 55
    Bow angle (Positive = bow angles forward): 10.00 degrees
    Stern overhang: 15.00 ft / 4.57 m
    Freeboard (% = length of deck as a percentage of waterline length):
                Fore end,     Aft end
       - Forecastle:    20.00 %,  26.00 ft / 7.92 m,  21.00 ft / 6.40 m
       - Forward deck:    30.00 %,  21.00 ft / 6.40 m,  17.00 ft / 5.18 m
       - Aft deck:    35.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
       - Quarter deck:    15.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
       - Average freeboard:        18.80 ft / 5.73 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 81.8 %
        - Above water (accommodation/working, high = better): 127.5 %
    Waterplane Area: 46,576 Square feet or 4,327 Square metres
    Displacement factor (Displacement / loading): 105 %
    Structure weight / hull surface area: 200 lbs/sq ft or 978 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0.97
        - Longitudinal: 1.32
        - Overall: 1.00
    Excellent machinery, storage, compartmentation space
    Excellent accommodation and workspace room
    Good seaboat, rides out heavy weather easily

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