My GB/CA/1921 "1921-style" armoured cruiser

I have a drawing and specification dated 27 April 2002 that I did while I was working towards the end of my first contract in Minnesota. By this date, I had seen the sort of design work that Frank Fox was doing, and that influenced what I was doing with this ship. I even have an inboard profile that I drew, mimicking what I had seen Frank Fox do. My ship was different from anything that Frank has been doing, as he is interested in American WWII designs, while I tend towards British ships from 1905 to 1927, although I do ships up to 1945. To make this work in Springsharp, I had to increase the displacement by about 3,300 tons and the freeboard by one foot. This is the Springsharp report:

GB/CA/1921, Great Britain Armoured Cruiser laid down 1921 (Engine 1937)

Displacement:
 23,387 t light; 24,291 t standard; 25,700 t normal; 26,827 t full load

Dimensions: Length overall / water x beam x draught
 715.00 ft / 715.00 ft x 85.00 ft x 23.00 ft (normal load)
 217.93 m / 217.93 m x 25.91 m  x 7.01 m

Armament:
      9 - 10.00" / 254 mm guns (3x3 guns), 500.00lbs / 226.80kg shells, 1921 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, majority forward, 1 raised mount - superfiring
      8 - 5.50" / 140 mm guns (4x2 guns), 83.19lbs / 37.73kg shells, 1921 Model
   Quick firing guns in turrets (on barbettes)
   on side, all amidships, all raised mounts - superfiring
      2 - 5.50" / 140 mm guns (1x2 guns), 83.19lbs / 37.73kg shells, 1921 Model
   Quick firing guns in a turret (on a barbette)
   on centreline aft, all raised guns - 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, all raised mounts
 Weight of broadside 5,643 lbs / 2,560 kg
 Shells per gun, main battery: 120

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 8.00" / 203 mm 405.00 ft / 123.44 m 16.00 ft / 4.88 m
 Ends: Unarmoured
   Main Belt covers 87 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  2.00" / 51 mm 405.00 ft / 123.44 m 23.00 ft / 7.01 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 8.00" / 203 mm 10.0" / 254 mm  10.0" / 254 mm
 2nd: 5.00" / 127 mm 5.00" / 127 mm  5.00" / 127 mm
 3rd: 5.00" / 127 mm 5.00" / 127 mm  5.00" / 127 mm

   - Armour deck: 3.75" / 95 mm, Conning tower: 7.00" / 178 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 134,120 shp / 100,054 Kw = 32.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 2,535 tons

Complement:
 1,014 - 1,319

Cost:
 £4.917 million / $19.666 million

Distribution of weights at normal displacement:
 Armament: 705 tons, 2.7 %
 Armour: 8,599 tons, 33.5 %
    - Belts: 2,263 tons, 8.8 %
    - Torpedo bulkhead: 689 tons, 2.7 %
    - Armament: 2,166 tons, 8.4 %
    - Armour Deck: 3,349 tons, 13.0 %
    - Conning Tower: 131 tons, 0.5 %
 Machinery: 3,717 tons, 14.5 %
 Hull, fittings & equipment: 10,365 tons, 40.3 %
 Fuel, ammunition & stores: 2,313 tons, 9.0 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   45,564 lbs / 20,667 Kg = 91.1 x 10.0 " / 254 mm shells or 6.6 torpedoes
 Stability (Unstable if below 1.00): 1.08
 Metacentric height 4.5 ft / 1.4 m
 Roll period: 16.8 seconds
 Steadiness - As gun platform (Average = 50 %): 55 %
   - Recoil effect (Restricted arc if above 1.00): 0.54
 Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
 Hull has a flush deck
   and transom stern
 Block coefficient: 0.643
 Length to Beam Ratio: 8.41 : 1
 'Natural speed' for length: 30.48 kts
 Power going to wave formation at top speed: 57 %
 Trim (Max stability = 0, Max steadiness = 100): 54
 Bow angle (Positive = bow angles forward): 0.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  35.00 ft / 10.67 m
    - Forecastle (20 %): 25.00 ft / 7.62 m
    - Mid (50 %):  25.00 ft / 7.62 m
    - Quarterdeck (15 %): 25.00 ft / 7.62 m
    - Stern:  25.00 ft / 7.62 m
    - Average freeboard: 25.80 ft / 7.86 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 89.7 %
  - Above water (accommodation/working, high = better): 226.7 %
 Waterplane Area: 48,277 Square feet or 4,485 Square metres
 Displacement factor (Displacement / loading): 119 %
 Structure weight / hull surface area: 153 lbs/sq ft or 745 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.98
  - Longitudinal: 1.27
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent