A 1921 fast armoured cruiser

The natural thing was to see what a 1921 British armoured cruiser, in the same vein, would look like. I initially tried 9-10in guns as a main armament, but that seemed too light for the size. The armament is still light with 9-12in BLR, 16-5.5in QF, 6-4.7in AA, and 24-2pdr AA guns. The armour basis is still just 9in and the maximum speed is still 33 knots. The displacement is a rather large 35,700 tons normal to achieve moderate results. This is the Springsharp report:

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

Displacement:
 32,643 t light; 33,848 t standard; 35,700 t normal; 37,182 t full load

Dimensions: Length overall / water x beam x draught
 814.10 ft / 812.00 ft x 96.00 ft x 28.00 ft (normal load)
 248.14 m / 247.50 m x 29.26 m  x 8.53 m

Armament:
      9 - 12.00" / 305 mm guns (3x3 guns), 864.00lbs / 391.90kg shells, 1921 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, majority forward, 1 raised mount - superfiring
      16 - 5.50" / 140 mm guns (8x2 guns), 83.19lbs / 37.73kg shells, 1921 Model
   Quick firing guns in turrets (on barbettes)
   on side, evenly spread, 4 raised mounts
      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, all raised mounts
      24 - 1.57" / 40.0 mm guns (6x4 guns), 2.00lbs / 0.91kg shells, 1921 Model
   Anti-aircraft guns in deck mounts 
   on side, evenly spread
 Weight of broadside 9,466 lbs / 4,294 kg
 Shells per gun, main battery: 90

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 9.00" / 229 mm 600.00 ft / 182.88 m 17.00 ft / 5.18 m
 Ends: Unarmoured
   Main Belt covers 114 % of normal length

   - Torpedo Bulkhead:
  2.00" / 51 mm 600.00 ft / 182.88 m 27.00 ft / 8.23 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 9.00" / 229 mm 6.00" / 152 mm  9.00" / 229 mm
 2nd: 5.00" / 127 mm 5.00" / 127 mm  5.00" / 127 mm
 4th: 1.00" / 25 mm       -         -

   - Armour deck: 4.00" / 102 mm, Conning tower: 9.00" / 229 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 170,392 shp / 127,112 Kw = 33.00 kts
 Range 6,000nm at 15.00 kts
 Bunker at max displacement = 3,335 tons

Complement:
 1,298 - 1,688

Cost:
 £7.529 million / $30.116 million

Distribution of weights at normal displacement:
 Armament: 1,183 tons, 3.3 %
 Armour: 11,888 tons, 33.3 %
    - Belts: 3,808 tons, 10.7 %
    - Torpedo bulkhead: 1,199 tons, 3.4 %
    - Armament: 2,388 tons, 6.7 %
    - Armour Deck: 4,283 tons, 12.0 %
    - Conning Tower: 210 tons, 0.6 %
 Machinery: 5,867 tons, 16.4 %
 Hull, fittings & equipment: 13,705 tons, 38.4 %
 Fuel, ammunition & stores: 3,057 tons, 8.6 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   50,934 lbs / 23,103 Kg = 59.0 x 12.0 " / 305 mm shells or 7.1 torpedoes
 Stability (Unstable if below 1.00): 1.18
 Metacentric height 6.4 ft / 1.9 m
 Roll period: 15.9 seconds
 Steadiness - As gun platform (Average = 50 %): 51 %
   - Recoil effect (Restricted arc if above 1.00): 0.45
 Seaboat quality  (Average = 1.00): 1.03

Hull form characteristics:
 Hull has a flush deck
   and transom stern
 Block coefficient: 0.572
 Length to Beam Ratio: 8.46 : 1
 'Natural speed' for length: 32.69 kts
 Power going to wave formation at top speed: 54 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 4.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  30.00 ft / 9.14 m
    - Forecastle (20 %): 23.00 ft / 7.01 m
    - Mid (67 %):  23.00 ft / 7.01 m
    - Quarterdeck (15 %): 23.00 ft / 7.01 m
    - Stern:  23.00 ft / 7.01 m
    - Average freeboard: 23.56 ft / 7.18 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 99.3 %
  - Above water (accommodation/working, high = better): 195.3 %
 Waterplane Area: 57,873 Square feet or 5,377 Square metres
 Displacement factor (Displacement / loading): 108 %
 Structure weight / hull surface area: 171 lbs/sq ft or 835 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.99
  - Longitudinal: 1.06
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent