Improved Preussen Class, Baltic Confederation Dreadnougth

[ledeper]

Improved Preussen Class, Baltic Confederation  Dreadnougth laid down 1911

Displacement:
   23.499 t light; 24.850 t standard; 27.766 t normal; 30.099 t full load

Dimensions: Length overall / water x beam x draught
   587,20 ft / 574,15 ft x 96,78 ft x 28,71 ft (normal load)
   178,98 m / 175,00 m x 29,50 m  x 8,75 m

Armament:
      9 - 14,00" / 356 mm guns (3x3 guns), 1.372,00lbs / 622,33kg shells, 1911 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 1 raised mount - superfiring
      16 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1911 Model
     Quick firing guns in deck mounts
     on side, all amidships
      10 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,89kg shells, 1911 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 12.880 lbs / 5.842 kg
   Shells per gun, main battery: 110

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14,0" / 356 mm   373,20 ft / 113,75 m   11,81 ft / 3,60 m
   Ends:   3,00" / 76 mm   200,93 ft / 61,24 m   11,81 ft / 3,60 m
   Upper:   6,00" / 152 mm   373,20 ft / 113,75 m   8,00 ft / 2,44 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead:
      2,00" / 51 mm   373,20 ft / 113,75 m   27,13 ft / 8,27 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   14,0" / 356 mm   10,0" / 254 mm      10,0" / 254 mm
   2nd:   6,00" / 152 mm   4,00" / 102 mm            -
   3rd:   0,50" / 13 mm         -               -

   - Armour deck: 3,00" / 76 mm, Conning tower: 14,00" / 356 mm

Machinery:
   Coal fired boilers, steam turbines,
   Electric motors, 4 shafts, 47.427 shp / 35.380 Kw = 22,90 kts
   Range 6.500nm at 14,00 kts
   Bunker at max displacement = 5.248 tons (100% coal)

Complement:
   1.075 - 1.398

Cost:
   £2,471 million / $9,885 million

Distribution of weights at normal displacement:
   Armament: 1.610 tons, 5,8 %
   Armour: 9.334 tons, 33,6 %
      - Belts: 3.780 tons, 13,6 %
      - Torpedo bulkhead: 749 tons, 2,7 %
      - Armament: 2.253 tons, 8,1 %
      - Armour Deck: 2.275 tons, 8,2 %
      - Conning Tower: 277 tons, 1,0 %
   Machinery: 2.117 tons, 7,6 %
   Hull, fittings & equipment: 9.938 tons, 35,8 %
   Fuel, ammunition & stores: 4.267 tons, 15,4 %
   Miscellaneous weights: 500 tons, 1,8 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     35.688 lbs / 16.188 Kg = 26,0 x 14,0 " / 356 mm shells or 6,2 torpedoes
   Stability (Unstable if below 1.00): 1,14
   Metacentric height 6,1 ft / 1,9 m
   Roll period: 16,5 seconds
   Steadiness   - As gun platform (Average = 50 %): 59 %
         - Recoil effect (Restricted arc if above 1.00): 0,49
   Seaboat quality  (Average = 1.00): 1,17

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,609
   Length to Beam Ratio: 5,93 : 1
   'Natural speed' for length: 23,96 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 25,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      27,99 ft / 8,53 m
      - Forecastle (20 %):   16,77 ft / 5,11 m
      - Mid (50 %):      16,77 ft / 5,11 m
      - Quarterdeck (15 %):   16,77 ft / 5,11 m
      - Stern:      16,77 ft / 5,11 m
      - Average freeboard:   17,66 ft / 5,38 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 89,4 %
      - Above water (accommodation/working, high = better): 121,8 %
   Waterplane Area: 40.992 Square feet or 3.808 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 181 lbs/sq ft or 883 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,96
      - Longitudinal: 1,52
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent