Ger/BB/1905 Flush Decked

The specification for the Ger/BB/1905 flush-decked battleship design gives dimensions, power, weights, and armour thickness, so I was able to make the design very close to what was intended. The power specified actually produces 20.5 knots, not 19 knots, so that is a bonus. This is the design that inspired my graphic on Dreadnought Cruisers blog. The concept was to have a flush-decked battleship that was based on the Nassau, but was of a more modern configuration. This is the Sprinsharp report:

Ger/BB/1905, Germany Battleship laid down 1905 (Engine 1917)

Displacement:
 17,391 t light; 18,165 t standard; 20,000 t normal; 21,468 t full load

Dimensions: Length overall / water x beam x draught
 492.00 ft / 490.00 ft x 90.00 ft x 28.00 ft (normal load)
 149.96 m / 149.35 m x 27.43 m  x 8.53 m

Armament:
      8 - 12.00" / 305 mm guns (4x2 guns), 864.00lbs / 391.90kg shells, 1905 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread, 2 raised mounts - superfiring
      12 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1905 Model
   Quick firing guns in casemate mounts 
   on side, all amidships
 Weight of broadside 8,208 lbs / 3,723 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 12.0" / 305 mm 295.00 ft / 89.92 m 17.00 ft / 5.18 m
 Ends: Unarmoured
   Main Belt covers 93 % of normal length

   - Torpedo Bulkhead:
  4.00" / 102 mm 295.00 ft / 89.92 m 28.00 ft / 8.53 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 8.00" / 203 mm 6.00" / 152 mm  12.0" / 305 mm
 2nd: 6.00" / 152 mm 6.00" / 152 mm  6.00" / 152 mm

   - Armour deck: 4.00" / 102 mm, Conning tower: 12.00" / 305 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 26,280 shp / 19,605 Kw = 20.50 kts
 Range 7,500nm at 15.00 kts
 Bunker at max displacement = 3,303 tons

Complement:
 840 - 1,093

Cost:
 £1.605 million / $6.422 million

Distribution of weights at normal displacement:
 Armament: 1,026 tons, 5.1 %
 Armour: 8,472 tons, 42.4 %
    - Belts: 2,731 tons, 13.7 %
    - Torpedo bulkhead: 1,222 tons, 6.1 %
    - Armament: 2,014 tons, 10.1 %
    - Armour Deck: 2,314 tons, 11.6 %
    - Conning Tower: 190 tons, 1.0 %
 Machinery: 963 tons, 4.8 %
 Hull, fittings & equipment: 6,930 tons, 34.6 %
 Fuel, ammunition & stores: 2,609 tons, 13.0 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   34,814 lbs / 15,791 Kg = 40.3 x 12.0 " / 305 mm shells or 8.0 torpedoes
 Stability (Unstable if below 1.00): 1.10
 Metacentric height 5.1 ft / 1.6 m
 Roll period: 16.7 seconds
 Steadiness - As gun platform (Average = 50 %): 77 %
   - Recoil effect (Restricted arc if above 1.00): 0.55
 Seaboat quality  (Average = 1.00): 1.54

Hull form characteristics:
 Hull has a flush deck
 Block coefficient: 0.567
 Length to Beam Ratio: 5.44 : 1
 'Natural speed' for length: 22.14 kts
 Power going to wave formation at top speed: 49 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 0.00 degrees
 Stern overhang: 2.00 ft / 0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  24.00 ft / 7.32 m
    - Forecastle (20 %): 18.00 ft / 5.49 m
    - Mid (50 %):  18.00 ft / 5.49 m
    - Quarterdeck (15 %): 18.00 ft / 5.49 m
    - Stern:  18.00 ft / 5.49 m
    - Average freeboard: 18.48 ft / 5.63 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 70.0 %
  - Above water (accommodation/working, high = better): 127.6 %
 Waterplane Area: 31,269 Square feet or 2,905 Square metres
 Displacement factor (Displacement / loading): 107 %
 Structure weight / hull surface area: 159 lbs/sq ft or 776 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.92
  - Longitudinal: 2.14
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is excellent
 Room for accommodation and workspaces is excellent
 Ship has slow, easy roll, a good, steady gun platform
 Excellent seaboat, comfortable, can fire her guns in the heaviest weather