Another try at a Ger/BB/1905 design

This is my latest attempt at my 1971 design for a German battleship laid down in 1905: the Ger/BB/1905 design. This was a ship with 8-12in/45 BLR and 12-4in QF guns with a speed of 23 knots. I had figured that I could sacrifice gunpower to reach a higher speed. We agreed at the time to use only oil fuel, even though that was anachronistic. This is the Springsharp report:

GB/BB/1905, Germany Battleship laid down 1905

Displacement:
 21,024 t light; 21,896 t standard; 24,557 t normal; 26,686 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (586.00 ft / 580.00 ft) x 90.00 ft x (26.60 / 28.52 ft)
 (178.61 m / 176.78 m) x 27.43 m  x (8.11 / 8.69 m)

Armament:
      8 - 12.00" / 305 mm 45.0 cal guns - 870.00lbs / 394.63kg shells, 90 per gun
   Breech loading guns in turret on barbette mounts, 1905 Model
   4 x Twin mounts on centreline ends, evenly spread
  2 raised mounts - superfiring
      12 - 4.00" / 102 mm 45.0 cal guns - 32.27lbs / 14.64kg shells, 150 per gun
   Quick firing guns in casemate mounts, 1905 Model
   12 x Single mounts on sides, evenly spread
      Weight of broadside 7,347 lbs / 3,333 kg

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 11.0" / 279 mm 310.00 ft / 94.49 m 8.00 ft / 2.44 m
 Ends: 4.00" / 102 mm 120.00 ft / 36.58 m 8.00 ft / 2.44 m
   150.00 ft / 45.72 m Unarmoured ends
 Upper: 9.00" / 229 mm 310.00 ft / 94.49 m 8.00 ft / 2.44 m
   Main Belt covers 82 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead - Additional damage containing bulkheads:
  2.00" / 51 mm 310.00 ft / 94.49 m 26.60 ft / 8.11 m
 Beam between torpedo bulkheads 67.00 ft / 20.42 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 11.0" / 279 mm 9.00" / 229 mm  11.0" / 279 mm
 2nd: 4.00" / 102 mm 4.00" / 102 mm  4.00" / 102 mm

   - Armoured deck - multiple decks:
 For and Aft decks: 3.00" / 76 mm
 Forecastle: 3.00" / 76 mm  Quarter deck: 3.00" / 76 mm

   - Conning towers: Forward 11.00" / 279 mm, Aft 8.00" / 203 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 44,389 shp / 33,114 Kw = 23.00 kts
 Range 5,400nm at 15.00 kts
 Bunker at max displacement = 4,790 tons

Complement:
 980 - 1,275

Cost:
 £1.876 million / $7.504 million

Distribution of weights at normal displacement:
 Armament: 1,308 tons, 5.3 %
    - Guns: 1,308 tons, 5.3 %
 Armour: 7,835 tons, 31.9 %
    - Belts: 2,406 tons, 9.8 %
    - Torpedo bulkhead: 610 tons, 2.5 %
    - Armament: 2,302 tons, 9.4 %
    - Armour Deck: 2,170 tons, 8.8 %
    - Conning Towers: 346 tons, 1.4 %
 Machinery: 3,363 tons, 13.7 %
 Hull, fittings & equipment: 8,518 tons, 34.7 %
 Fuel, ammunition & stores: 3,533 tons, 14.4 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   41,639 lbs / 18,887 Kg = 48.2 x 12.0 " / 305 mm shells or 6.3 torpedoes
 Stability (Unstable if below 1.00): 1.18
 Metacentric height 5.8 ft / 1.8 m
 Roll period: 15.7 seconds
 Steadiness - As gun platform (Average = 50 %): 82 %
   - Recoil effect (Restricted arc if above 1.00): 0.68
 Seaboat quality  (Average = 1.00): 1.64

Hull form characteristics:
 Hull has low quarterdeck ,
   a ram bow and a cruiser stern
 Block coefficient (normal/deep): 0.619 / 0.627
 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 (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 25.00 %,  27.00 ft / 8.23 m,  26.00 ft / 7.92 m
    - Forward deck: 30.00 %,  26.00 ft / 7.92 m,  26.00 ft / 7.92 m
    - Aft deck: 14.00 %,  26.00 ft / 7.92 m,  26.00 ft / 7.92 m
    - Quarter deck: 31.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
    - Average freeboard:  23.62 ft / 7.20 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 93.5 %
  - Above water (accommodation/working, high = better): 196.4 %
 Waterplane Area: 38,860 Square feet or 3,610 Square metres
 Displacement factor (Displacement / loading): 117 %
 Structure weight / hull surface area: 162 lbs/sq ft or 791 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.94
  - Longitudinal: 1.80
  - Overall: 1.00
 Adequate machinery, storage, compartmentation space
 Excellent accommodation and workspace room
 Ship has slow, easy roll, a good, steady gun platform
 Excellent seaboat, comfortable, can fire her guns in the heaviest weather