My latest attempt at the Ger/CB/1906 design

This is my Ger/CB/1906 design that dates from 1971. The ship was a German battlecruiser of nominally 33 knots and 8-12in guns. The protection is light to achieve the speed with a decent armament. This is the Springsharp report:

Ger/CB/1906, Germany Battlecruiser laid down 1906 (Engine 1911)

Displacement:
 26,585 t light; 27,623 t standard; 30,688 t normal; 33,140 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (807.00 ft / 800.00 ft) x 85.00 ft x (25.60 / 27.30 ft)
 (245.97 m / 243.84 m) x 25.91 m  x (7.80 / 8.32 m)

Armament:
      8 - 12.00" / 305 mm 45.0 cal guns - 871.37lbs / 395.24kg shells, 90 per gun
   Breech loading guns in turret on barbette mounts, 1906 Model
   4 x Twin mounts on centreline ends, evenly spread
  2 raised mounts - superfiring
      8 - 6.00" / 152 mm 50.0 cal guns - 114.33lbs / 51.86kg shells, 150 per gun
   Quick firing guns in deck and hoist mounts, 1906 Model
   8 x Single mounts on sides, forward deck aft
      Weight of broadside 7,886 lbs / 3,577 kg

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.00" / 102 mm 450.00 ft / 137.16 m 17.00 ft / 5.18 m
 Ends: Unarmoured
   Main Belt covers 87 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead - Additional damage containing bulkheads:
  1.50" / 38 mm 450.00 ft / 137.16 m 25.60 ft / 7.80 m
 Beam between torpedo bulkheads 58.00 ft / 17.68 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 8.00" / 203 mm 6.00" / 152 mm  8.00" / 203 mm
 2nd: 2.00" / 51 mm 2.00" / 51 mm  2.00" / 51 mm

   - Protected 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 6.00" / 152 mm, Aft 0.00" / 0 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 175,979 shp / 131,281 Kw = 32.80 kts
 Range 6,500nm at 16.00 kts
 Bunker at max displacement = 5,517 tons

Complement:
 1,159 - 1,507

Cost:
 £2.677 million / $10.708 million

Distribution of weights at normal displacement:
 Armament: 1,509 tons, 4.9 %
    - Guns: 1,509 tons, 4.9 %
 Armour: 6,597 tons, 21.5 %
    - Belts: 1,305 tons, 4.3 %
    - Torpedo bulkhead: 639 tons, 2.1 %
    - Armament: 1,703 tons, 5.6 %
    - Armour Deck: 2,822 tons, 9.2 %
    - Conning Tower: 127 tons, 0.4 %
 Machinery: 7,142 tons, 23.3 %
 Hull, fittings & equipment: 11,337 tons, 36.9 %
 Fuel, ammunition & stores: 4,103 tons, 13.4 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   38,555 lbs / 17,488 Kg = 44.6 x 12.0 " / 305 mm shells or 4.1 torpedoes
 Stability (Unstable if below 1.00): 1.17
 Metacentric height 5.2 ft / 1.6 m
 Roll period: 15.6 seconds
 Steadiness - As gun platform (Average = 50 %): 55 %
   - Recoil effect (Restricted arc if above 1.00): 0.69
 Seaboat quality  (Average = 1.00): 1.10

Hull form characteristics:
 Hull has low quarterdeck ,
   a ram bow and a cruiser stern
 Block coefficient (normal/deep): 0.617 / 0.625
 Length to Beam Ratio: 9.41 : 1
 'Natural speed' for length: 28.28 kts
 Power going to wave formation at top speed: 54 %
 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: 27.00 %,  29.00 ft / 8.84 m,  27.00 ft / 8.23 m
    - Forward deck: 30.00 %,  27.00 ft / 8.23 m,  27.00 ft / 8.23 m
    - Aft deck: 14.00 %,  27.00 ft / 8.23 m,  27.00 ft / 8.23 m
    - Quarter deck: 29.00 %,  19.00 ft / 5.79 m,  20.00 ft / 6.10 m
    - Average freeboard:  25.04 ft / 7.63 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 143.0 %
  - Above water (accommodation/working, high = better): 224.2 %
 Waterplane Area: 50,528 Square feet or 4,694 Square metres
 Displacement factor (Displacement / loading): 110 %
 Structure weight / hull surface area: 160 lbs/sq ft or 781 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 1.00
  - Longitudinal: 1.02
  - Overall: 1.00
 Cramped machinery, storage, compartmentation space
 Excellent accommodation and workspace room