The Ger/BB/1905 in Springsharp 3.0b Beta

I made the Ger/BB/1905 design with coal-fired boilers, while the original concept had oil-fired boilers. I thought that coal would be more reasonable, given the date and country. This is the latest photo:

The ship carried 8-12in/45 BL and 12-4in QF guns. The armour basis was 10in with a 3in deck. The maximum speed was 23 knots. I was able to achieve a 6,400nm range at 12 knots. This is the Springsharp report:

Ger/BB/1905, Germany Battleship laid down 1905

Displacement:
 19,735 t light; 20,568 t standard; 23,089 t normal; 25,106 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (590.00 ft / 580.00 ft) x 90.00 ft x (26.60 / 28.48 ft)
 (179.83 m / 176.78 m) x 27.43 m  x (8.11 / 8.68 m)

Armament:
      8 - 12.00" / 305 mm 45.0 cal guns - 850.00lbs / 385.55kg 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 50.0 cal guns - 32.00lbs / 14.51kg shells, 150 per gun
   Quick firing guns in casemate mounts , 1905 Model
   6 x Single mounts on sides, forward deck aft
   6 x Single mounts on sides, aft deck forward
 Weight of broadside 7,184 lbs / 7,184 kg

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 10.0" / 254 mm 375.00 ft / 114.30 m 8.00 ft / 2.44 m
 Ends: Unarmoured
 Upper: 8.00" / 203 mm 375.00 ft / 114.30 m 8.00 ft / 2.44 m
   Main Belt covers 99 % of normal length

   - Torpedo Bulkhead:
  2.00" / 51 mm 375.00 ft / 114.30 m 26.60 ft / 8.11 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: 11.00" / 279 mm

Machinery:
 Coal fired boilers, steam turbines, 
 ERROR: Revise drives, 4 shafts, 42,135 shp / 31,433 Kw = 23.00 kts
 Range 6,400nm at 12.00 kts
 Bunker at max displacement = 4,537 tons (100% coal)

Complement:
 936 - 1,217

Cost:
 £1.855 million / $7.419 million

Distribution of weights at normal displacement:
 Armament: 1,320 tons, 5.7 %
 Armour: 7,122 tons, 30.8 %
    - Belts: 2,361 tons, 10.2 %
    - Torpedo bulkhead: 738 tons, 3.2 %
    - Armament: 1,747 tons, 7.6 %
    - Armour Deck: 2,083 tons, 9.0 %
    - Conning Tower: 192 tons, 0.8 %
 Machinery: 3,511 tons, 15.2 %
 Hull, fittings & equipment: 8,301 tons, 36.0 %
 Fuel, ammunition & stores: 3,355 tons, 14.5 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   33,599 lbs / 15,240 Kg = 38.9 x 12.0 " / 305 mm shells or 5.3 torpedoes
 Stability (Unstable if below 1.00): 1.22
 Metacentric height 6.2 ft / 1.9 m
 Roll period: 15.2 seconds
 Steadiness - As gun platform (Average = 50 %): 82 %
   - Recoil effect (Restricted arc if above 1.00): 0.56
 Seaboat quality  (Average = 1.00): 1.64

Hull form characteristics:
 Hull has rise forward of midbreak,
   a ram bow and a cruiser stern
 Block coefficient (normal/deep): 0.582 / 0.591
 Length to Beam Ratio: 6.44 : 1
 'Natural speed' for length: 24.08 kts
 Power going to wave formation at top speed: 48 %
 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: 35.00 %,  27.00 ft / 8.23 m,  24.00 ft / 7.32 m
    - Forward deck: 35.00 %,  24.00 ft / 7.32 m,  24.00 ft / 7.32 m
    - Aft deck: 15.00 %,  16.00 ft / 4.88 m,  16.00 ft / 4.88 m
    - Quarter deck: 15.00 %,  16.00 ft / 4.88 m,  16.00 ft / 4.88 m
    - Average freeboard:  22.02 ft / 6.71 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 97.7 %
  - Above water (accommodation/working, high = better): 165.0 %
 Waterplane Area: 37,540 Square feet or 3,488 Square metres
 Displacement factor (Displacement / loading): 112 %
 Structure weight / hull surface area: 155 lbs/sq ft or 758 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.94
  - Longitudinal: 1.69
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 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