A super ship: the GB/CA/1921

The GB/CA/1921 seems like a super ship, compared to its predecessor designs. This ship has 9-9.2in BLR, 12-4.7in QF, 6-4.7in AA, and 32-2pdr AA guns. The armour basis is 6in with a 2.5in deck. The maximum speed is 33 knots with a range of 6,500nm at 15 knots. The hull is flush-decked and has a transom stern. This is the Springsharp report:

GB/CA/1921, Great Britain Heavy Cruiser laid down 1921

Displacement:
 17,722 t light; 18,434 t standard; 19,800 t normal; 20,893 t full load

Dimensions: Length overall / water x beam x draught
 678.03 ft / 674.00 ft x 69.00 ft x 24.00 ft (normal load)
 206.66 m / 205.44 m x 21.03 m  x 7.32 m

Armament:
      9 - 9.20" / 234 mm guns (3x3 guns), 389.34lbs / 176.60kg shells, 1921 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, majority forward, 1 raised mount - superfiring
      12 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1921 Model
   Quick firing guns in deck mounts with hoists
   on side, all amidships, 4 raised mounts - superfiring
      6 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1921 Model
   Anti-aircraft guns in deck mounts with hoists
   on side, evenly spread
      32 - 1.57" / 40.0 mm guns (8x4 guns), 1.95lbs / 0.89kg shells, 1921 Model
   Anti-aircraft guns in deck mounts 
   on side ends, evenly spread
 Weight of broadside 4,501 lbs / 2,042 kg
 Shells per gun, main battery: 120

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 6.00" / 152 mm 595.00 ft / 181.36 m 16.00 ft / 4.88 m
 Ends: Unarmoured
   Main Belt covers 136 % of normal length

   - Torpedo Bulkhead:
  1.00" / 25 mm 595.00 ft / 181.36 m 21.00 ft / 6.40 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 6.00" / 152 mm 4.00" / 102 mm  6.00" / 152 mm
 2nd: 2.00" / 51 mm       -   2.00" / 51 mm
 4th: 1.00" / 25 mm       -         -

   - Armour deck: 2.50" / 64 mm, Conning tower: 6.00" / 152 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 127,925 shp / 95,432 Kw = 33.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 2,459 tons

Complement:
 833 - 1,084

Cost:
 £4.352 million / $17.407 million

Distribution of weights at normal displacement:
 Armament: 563 tons, 2.8 %
 Armour: 5,369 tons, 27.1 %
    - Belts: 2,286 tons, 11.5 %
    - Torpedo bulkhead: 462 tons, 2.3 %
    - Armament: 854 tons, 4.3 %
    - Armour Deck: 1,672 tons, 8.4 %
    - Conning Tower: 95 tons, 0.5 %
 Machinery: 4,405 tons, 22.2 %
 Hull, fittings & equipment: 7,385 tons, 37.3 %
 Fuel, ammunition & stores: 2,078 tons, 10.5 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   25,139 lbs / 11,403 Kg = 64.6 x 9.2 " / 234 mm shells or 2.9 torpedoes
 Stability (Unstable if below 1.00): 1.13
 Metacentric height 3.6 ft / 1.1 m
 Roll period: 15.3 seconds
 Steadiness - As gun platform (Average = 50 %): 53 %
   - Recoil effect (Restricted arc if above 1.00): 0.76
 Seaboat quality  (Average = 1.00): 1.07

Hull form characteristics:
 Hull has a flush deck
   and transom stern
 Block coefficient: 0.621
 Length to Beam Ratio: 9.77 : 1
 'Natural speed' for length: 29.32 kts
 Power going to wave formation at top speed: 59 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 4.00 degrees
 Stern overhang: 2.00 ft / 0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  29.00 ft / 8.84 m
    - Forecastle (20 %): 24.00 ft / 7.32 m
    - Mid (67 %):  24.00 ft / 7.32 m
    - Quarterdeck (15 %): 24.00 ft / 7.32 m
    - Stern:  24.00 ft / 7.32 m
    - Average freeboard: 24.40 ft / 7.44 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 132.6 %
  - Above water (accommodation/working, high = better): 198.5 %
 Waterplane Area: 36,162 Square feet or 3,360 Square metres
 Displacement factor (Displacement / loading): 106 %
 Structure weight / hull surface area: 130 lbs/sq ft or 634 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.97
  - Longitudinal: 1.42
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent