The Ger/CB/1907 design

The Ger/CB/1905 design is for a ship with 8 12in guns on the center, with one turret forward, one amidships, facing forward, and two aft, with one superfiring. The secondary armament is in casemates, below the forecastle deck level. The armour basis is just 10in. This is the Springsharp report:

Ger/CB/1907, Germany Battlecruiser laid down 1907 (Engine 1927)

Displacement:
 20,748 t light; 21,649 t standard; 22,900 t normal; 23,901 t full load

Dimensions: Length overall / water x beam x draught
 600.00 ft / 600.00 ft x 95.00 ft x 24.00 ft (normal load)
 182.88 m / 182.88 m x 28.96 m  x 7.32 m

Armament:
      2 - 12.00" / 305 mm guns (1x2 guns), 864.00lbs / 391.90kg shells, 1907 Model
   Breech loading guns in a turret (on a barbette)
   on centreline forward
      2 - 12.00" / 305 mm guns (1x2 guns), 864.00lbs / 391.90kg shells, 1907 Model
   Breech loading guns in a turret (on a barbette)
   on centreline amidships
      4 - 12.00" / 305 mm guns (2x2 guns), 864.00lbs / 391.90kg shells, 1907 Model
   Breech loading guns in turrets (on barbettes)
   on centreline, all aft, 1 raised mount - superfiring
      12 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1907 Model
   Quick firing guns in casemate mounts 
   on side, evenly spread
   12 guns in hull casemates - Limited use in heavy seas
 Weight of broadside 8,208 lbs / 3,723 kg
 Shells per gun, main battery: 90

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 10.0" / 254 mm 360.00 ft / 109.73 m 8.00 ft / 2.44 m
 Ends: Unarmoured
 Upper: 10.0" / 254 mm 230.00 ft / 70.10 m 8.00 ft / 2.44 m
   Main Belt covers 92 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  2.00" / 51 mm 360.00 ft / 109.73 m 24.00 ft / 7.32 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 10.0" / 254 mm 6.00" / 152 mm  10.0" / 254 mm
 2nd: 10.0" / 254 mm 6.00" / 152 mm  10.0" / 254 mm
 3rd: 10.0" / 254 mm 6.00" / 152 mm  10.0" / 254 mm
 4th: 6.00" / 152 mm 6.00" / 152 mm  6.00" / 152 mm

   - Armour deck: 3.00" / 76 mm, Conning tower: 10.00" / 254 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 91,575 shp / 68,315 Kw = 28.00 kts
 Range 5,400nm at 15.00 kts
 Bunker at max displacement = 2,253 tons

Complement:
 930 - 1,210

Cost:
 £1.993 million / $7.971 million

Distribution of weights at normal displacement:
 Armament: 1,026 tons, 4.5 %
 Armour: 7,211 tons, 31.5 %
    - Belts: 2,211 tons, 9.7 %
    - Torpedo bulkhead: 639 tons, 2.8 %
    - Armament: 1,904 tons, 8.3 %
    - Armour Deck: 2,283 tons, 10.0 %
    - Conning Tower: 174 tons, 0.8 %
 Machinery: 2,891 tons, 12.6 %
 Hull, fittings & equipment: 9,620 tons, 42.0 %
 Fuel, ammunition & stores: 2,152 tons, 9.4 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   36,782 lbs / 16,684 Kg = 42.6 x 12.0 " / 305 mm shells or 5.9 torpedoes
 Stability (Unstable if below 1.00): 1.21
 Metacentric height 6.6 ft / 2.0 m
 Roll period: 15.5 seconds
 Steadiness - As gun platform (Average = 50 %): 53 %
   - Recoil effect (Restricted arc if above 1.00): 0.40
 Seaboat quality  (Average = 1.00): 1.06

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.586
 Length to Beam Ratio: 6.32 : 1
 'Natural speed' for length: 24.49 kts
 Power going to wave formation at top speed: 57 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -1.00 degrees
 Stern overhang: -1.00 ft / -0.30 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  27.00 ft / 8.23 m
    - Forecastle (20 %): 25.00 ft / 7.62 m
    - Mid (70 %):  25.00 ft / 7.62 m (17.00 ft / 5.18 m aft of break)
    - Quarterdeck (15 %): 17.00 ft / 5.18 m
    - Stern:  17.00 ft / 5.18 m
    - Average freeboard: 22.76 ft / 6.94 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 95.0 %
  - Above water (accommodation/working, high = better): 195.1 %
 Waterplane Area: 41,142 Square feet or 3,822 Square metres
 Displacement factor (Displacement / loading): 108 %
 Structure weight / hull surface area: 171 lbs/sq ft or 833 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.94
  - Longitudinal: 1.83
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent