The It/CA/1937 heavy cruiser

My design for the It/CA/1937 is a better protected ship, in that the deck armour is 3in, in stead of 2in. The belt is slightly longer, as well. The heavy AA armament is 8-4.7in AA guns and the light AA armament is 28-37mm AA guns in twin mounts. The main armament is unchanged at 8-8in guns and the torpedo armament is still 8-21in TT in quad mounts on the deck. The speed is 34 knots and the range is slightly greater at 4,800nm at 15 knots. This is the Springsharp report:

It/CA/1937 Heavier Armour Version, Italy Heavy Cruiser laid down 1937 (Engine 1945)

Displacement:
 14,644 t light; 15,137 t standard; 15,900 t normal; 16,511 t full load

Dimensions: Length overall / water x beam x draught
 655.57 ft / 654.00 ft x 68.00 ft x 21.00 ft (normal load)
 199.82 m / 199.34 m x 20.73 m  x 6.40 m

Armament:
      8 - 8.00" / 203 mm guns (4x2 guns), 256.00lbs / 116.12kg shells, 1937 Model
   Breech loading guns in turrets (on barbettes)
   on centreline, all forward, 2 raised mounts - superfiring
      8 - 4.70" / 119 mm guns (4x2 guns), 51.91lbs / 23.55kg shells, 1937 Model
   Anti-aircraft guns in deck mounts with hoists
   on side, all amidships
      28 - 1.46" / 37.0 mm guns (14x2 guns), 1.55lbs / 0.70kg shells, 1937 Model
   Anti-aircraft guns in deck mounts 
   on side, all amidships, all raised mounts - superfiring
 Weight of broadside 2,507 lbs / 1,137 kg
 Shells per gun, main battery: 120
 8 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 5.00" / 127 mm 440.00 ft / 134.11 m 16.00 ft / 4.88 m
 Ends: Unarmoured
   Main Belt covers 104 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.00" / 25 mm 440.00 ft / 134.11 m 21.00 ft / 6.40 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 5.00" / 127 mm 3.00" / 76 mm  5.00" / 127 mm
 2nd: 1.00" / 25 mm       -   1.00" / 25 mm

   - Armour deck: 3.00" / 76 mm, Conning tower: 5.00" / 127 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 145,685 shp / 108,681 Kw = 34.00 kts
 Range 4,800nm at 15.00 kts
 Bunker at max displacement = 1,374 tons

Complement:
 707 - 920

Cost:
 £7.041 million / $28.162 million

Distribution of weights at normal displacement:
 Armament: 313 tons, 2.0 %
 Armour: 4,366 tons, 27.5 %
    - Belts: 1,468 tons, 9.2 %
    - Torpedo bulkhead: 342 tons, 2.2 %
    - Armament: 689 tons, 4.3 %
    - Armour Deck: 1,798 tons, 11.3 %
    - Conning Tower: 68 tons, 0.4 %
 Machinery: 3,679 tons, 23.1 %
 Hull, fittings & equipment: 6,286 tons, 39.5 %
 Fuel, ammunition & stores: 1,256 tons, 7.9 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   22,797 lbs / 10,341 Kg = 89.1 x 8.0 " / 203 mm shells or 2.9 torpedoes
 Stability (Unstable if below 1.00): 1.13
 Metacentric height 3.6 ft / 1.1 m
 Roll period: 15.1 seconds
 Steadiness - As gun platform (Average = 50 %): 57 %
   - Recoil effect (Restricted arc if above 1.00): 0.52
 Seaboat quality  (Average = 1.00): 1.14

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.596
 Length to Beam Ratio: 9.62 : 1
 'Natural speed' for length: 25.57 kts
 Power going to wave formation at top speed: 60 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 3.00 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 %): 29.00 ft / 8.84 m
    - Mid (50 %):  29.00 ft / 8.84 m (21.00 ft / 6.40 m aft of break)
    - Quarterdeck (15 %): 21.00 ft / 6.40 m
    - Stern:  21.00 ft / 6.40 m
    - Average freeboard: 25.08 ft / 7.64 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 128.3 %
  - Above water (accommodation/working, high = better): 188.8 %
 Waterplane Area: 32,401 Square feet or 3,010 Square metres
 Displacement factor (Displacement / loading): 112 %
 Structure weight / hull surface area: 119 lbs/sq ft or 580 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.95
  - Longitudinal: 1.63
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent