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Vanguard, Cascadian Dreadnought laid down 1916

Units: 2

  • CRS Vanguard
  • CRS Formidable


Displacement:
    33,109 t light; 35,173 t standard; 37,621 t normal; 39,578 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
    (698.70 ft / 680.00 ft) x 99.30 ft x (30.00 / 31.32 ft)
    (212.96 m / 207.26 m) x 30.27 m  x (9.14 / 9.55 m)

Armament:
      12 - 14.00" / 356 mm 52.0 cal guns - 1,620.00lbs / 734.82kg shells, 100 per gun
      Breech loading guns in turret on barbette mounts, 1916 Model
      4 x 3-gun mounts on centreline ends, evenly spread
        2 raised mounts - superfiring
      16 - 6.00" / 152 mm 50.0 cal guns - 114.33lbs / 51.86kg shells, 150 per gun
      Quick firing guns in casemate mounts, 1916 Model
      16 x Single mounts on sides, evenly spread
      10 - 3.00" / 76.2 mm 50.0 cal guns - 14.29lbs / 6.48kg shells, 1,000 per gun
      Anti-air guns in deck mounts, 1916 Model
      7 x Single mounts on sides, evenly spread
      3 x Single mounts on side ends, majority aft
        3 raised mounts
      Weight of broadside 21,412 lbs / 9,712 kg
      Main Torpedoes
      2 - 21.0" / 533 mm, 23.00 ft / 7.01 m torpedoes - 1.464 t each, 2.929 t total
    submerged side tubes
      2nd Torpedoes
      12 - 21.0" / 533 mm, 23.00 ft / 7.01 m torpedoes - 1.464 t each, 17.572 t total
    below water reloads

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    14.0" / 356 mm    370.00 ft / 112.78 m    17.00 ft / 5.18 m
    Ends:    Unarmoured
    Upper:    8.00" / 203 mm    370.00 ft / 112.78 m    10.00 ft / 3.05 m
      Main Belt covers 84 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
        3.00" / 76 mm    400.00 ft / 121.92 m    28.00 ft / 8.53 m
    Beam between torpedo bulkheads 80.00 ft / 24.38 m

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    18.0" / 457 mm    7.00" / 178 mm        14.0" / 356 mm
    2nd:    3.00" / 76 mm    2.00" / 51 mm        3.00" / 76 mm

   - Armoured deck - single deck:
    For and Aft decks: 4.00" / 102 mm
    Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 16.00" / 406 mm, Aft 5.00" / 127 mm

Machinery:
    Oil fired boilers, steam turbines,
    Geared drive, 4 shafts, 55,500 shp / 41,403 Kw = 23.04 kts
    Range 9,000nm at 13.00 kts
    Bunker at max displacement = 4,405 tons

Complement:
    1,349 - 1,755

Cost:
    £5.640 million / $22.561 million

Distribution of weights at normal displacement:
    Armament: 4,628 tons, 12.3 %
       - Guns: 4,600 tons, 12.2 %
       - Weapons: 28 tons, 0.1 %
    Armour: 13,998 tons, 37.2 %
       - Belts: 5,326 tons, 14.2 %
       - Torpedo bulkhead: 1,243 tons, 3.3 %
       - Armament: 3,425 tons, 9.1 %
       - Armour Deck: 3,497 tons, 9.3 %
       - Conning Towers: 508 tons, 1.4 %
    Machinery: 2,068 tons, 5.5 %
    Hull, fittings & equipment: 12,415 tons, 33.0 %
    Fuel, ammunition & stores: 4,512 tons, 12.0 %
    Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      48,946 lbs / 22,202 Kg = 35.7 x 14.0 " / 356 mm shells or 7.5 torpedoes
    Stability (Unstable if below 1.00): 1.04
    Metacentric height 5.4 ft / 1.6 m
    Roll period: 18.0 seconds
    Steadiness    - As gun platform (Average = 50 %): 70 %
            - Recoil effect (Restricted arc if above 1.00): 0.95
    Seaboat quality  (Average = 1.00): 1.25

Hull form characteristics:
    Hull has a flush deck,
      a normal bow and a round stern
    Block coefficient (normal/deep): 0.650 / 0.655
    Length to Beam Ratio: 6.85 : 1
    'Natural speed' for length: 26.08 kts
    Power going to wave formation at top speed: 45 %
    Trim (Max stability = 0, Max steadiness = 100): 56
    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 %,  21.00 ft / 6.40 m,  20.00 ft / 6.10 m
       - Forward deck:    35.00 %,  20.00 ft / 6.10 m,  17.00 ft / 5.18 m
       - Aft deck:    30.00 %,  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:        18.21 ft / 5.55 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 82.8 %
        - Above water (accommodation/working, high = better): 130.1 %
    Waterplane Area: 51,727 Square feet or 4,806 Square metres
    Displacement factor (Displacement / loading): 101 %
    Structure weight / hull surface area: 211 lbs/sq ft or 1,032 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0.98
        - Longitudinal: 1.23
        - Overall: 1.00
    Excellent machinery, storage, compartmentation space
    Excellent accommodation and workspace room
    Ship has slow, easy roll, a good, steady gun platform
    Good seaboat, rides out heavy weather easily

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