A conservative version of the Ger/BB/1905 design

This is a very conservative version of the Ger/BB/1905 design. This was the design that I had intended to lay down in 1905 and 1906. The main deviations are modestly light weight machinery, superfiring turrets, and "all-or-nothing" protection, not dissimilar to the 1870's. The armour basis is 10in. This was the recent photograph of one of the ships:

This is the Springsharp report:

Ger/BB/1905, Germany Battleship laid down 1905 (Engine 1907)

Displacement:
 20,412 t light; 21,272 t standard; 24,500 t normal; 27,083 t full load

Dimensions: Length overall / water x beam x draught
 580.00 ft / 580.00 ft x 90.00 ft x 26.60 ft (normal load)
 176.78 m / 176.78 m x 27.43 m  x 8.11 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 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1905 Model
   Quick firing guns in casemate mounts 
   on side, all amidships
 Weight of broadside 7,296 lbs / 3,309 kg
 Shells per gun, main battery: 90

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 10.0" / 254 mm 385.00 ft / 117.35 m 17.00 ft / 5.18 m
 Ends: Unarmoured
   Main Belt covers 102 % of normal length

   - Torpedo Bulkhead:
  2.00" / 51 mm 385.00 ft / 117.35 m 26.00 ft / 7.92 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 10.0" / 254 mm 7.00" / 178 mm  10.0" / 254 mm
 2nd: 4.00" / 102 mm 4.00" / 102 mm  4.00" / 102 mm

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

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 44,301 shp / 33,049 Kw = 23.00 kts
 Range 7,500nm at 15.00 kts
 Bunker at max displacement = 5,811 tons

Complement:
 978 - 1,272

Cost:
 £1.833 million / $7.332 million

Distribution of weights at normal displacement:
 Armament: 912 tons, 3.7 %
 Armour: 8,026 tons, 32.8 %
    - Belts: 2,852 tons, 11.6 %
    - Torpedo bulkhead: 741 tons, 3.0 %
    - Armament: 2,097 tons, 8.6 %
    - Armour Deck: 2,154 tons, 8.8 %
    - Conning Tower: 182 tons, 0.7 %
 Machinery: 2,517 tons, 10.3 %
 Hull, fittings & equipment: 8,957 tons, 36.6 %
 Fuel, ammunition & stores: 4,088 tons, 16.7 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   45,370 lbs / 20,580 Kg = 52.5 x 12.0 " / 305 mm shells or 7.6 torpedoes
 Stability (Unstable if below 1.00): 1.11
 Metacentric height 5.2 ft / 1.6 m
 Roll period: 16.6 seconds
 Steadiness - As gun platform (Average = 50 %): 91 %
   - Recoil effect (Restricted arc if above 1.00): 0.79
 Seaboat quality  (Average = 1.00): 1.82

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.618
 Length to Beam Ratio: 6.44 : 1
 'Natural speed' for length: 24.08 kts
 Power going to wave formation at top speed: 49 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -2.00 degrees
 Stern overhang: -2.00 ft / -0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  30.00 ft / 9.14 m
    - Forecastle (20 %): 28.00 ft / 8.53 m
    - Mid (70 %):  28.00 ft / 8.53 m (20.00 ft / 6.10 m aft of break)
    - Quarterdeck (15 %): 20.00 ft / 6.10 m
    - Stern:  20.00 ft / 6.10 m
    - Average freeboard: 25.76 ft / 7.85 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 79.5 %
  - Above water (accommodation/working, high = better): 197.7 %
 Waterplane Area: 38,808 Square feet or 3,605 Square metres
 Displacement factor (Displacement / loading): 120 %
 Structure weight / hull surface area: 158 lbs/sq ft or 770 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.92
  - Longitudinal: 2.04
  - 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