My latter day armored cruiser: GB/CA/1921 x1

I just tried my fast armored cruiser design that I did on May 21, 2002. Frank Fox had encouraged me to look at 9.2in gunned armored cruisers, as he thought that was a better choice than something heavier. I had to work just a little bit to get it to work in Springsharp. Mostly, that was because I had underspecified the design in 2002. The ship has a very long forecastle and a high freeboard, which makes it a very good seaboat. Here is the Springsharp report:

GB/CA/1921 x1, Great Britain Heavy Cruiser laid down 1921 (Engine 1933)

Displacement:
 19,407 t light; 20,122 t standard; 22,483 t normal; 24,372 t full load

Dimensions: Length overall / water x beam x draught
 726.94 ft / 725.00 ft x 75.00 ft x 24.00 ft (normal load)
 221.57 m / 220.98 m x 22.86 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, all raised mounts - superfiring
      12 - 4.00" / 102 mm guns (6x2 guns), 32.00lbs / 14.51kg shells, 1921 Model
   Quick firing guns in deck mounts with hoists
   on side, evenly spread, all raised mounts
 Weight of broadside 3,888 lbs / 1,764 kg
 Shells per gun, main battery: 120

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 6.00" / 152 mm 430.00 ft / 131.06 m 18.00 ft / 5.49 m
 Ends: Unarmoured
   Main Belt covers 91 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.00" / 25 mm 430.00 ft / 131.06 m 23.00 ft / 7.01 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 7.00" / 178 mm 5.00" / 127 mm  6.00" / 152 mm
 2nd: 2.00" / 51 mm       -         -

   - Armour deck: 2.50" / 64 mm, Conning tower: 5.00" / 127 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 150,805 shp / 112,501 Kw = 34.00 kts
 Range 12,000nm at 15.00 kts
 Bunker at max displacement = 4,250 tons

Complement:
 917 - 1,193

Cost:
 £4.334 million / $17.336 million

Distribution of weights at normal displacement:
 Armament: 486 tons, 2.2 %
 Armour: 5,446 tons, 24.2 %
    - Belts: 1,975 tons, 8.8 %
    - Torpedo bulkhead: 366 tons, 1.6 %
    - Armament: 1,097 tons, 4.9 %
    - Armour Deck: 1,922 tons, 8.6 %
    - Conning Tower: 86 tons, 0.4 %
 Machinery: 4,394 tons, 19.5 %
 Hull, fittings & equipment: 9,081 tons, 40.4 %
 Fuel, ammunition & stores: 3,076 tons, 13.7 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   30,751 lbs / 13,949 Kg = 79.0 x 9.2 " / 234 mm shells or 3.9 torpedoes
 Stability (Unstable if below 1.00): 1.04
 Metacentric height 3.5 ft / 1.1 m
 Roll period: 16.8 seconds
 Steadiness - As gun platform (Average = 50 %): 78 %
   - Recoil effect (Restricted arc if above 1.00): 0.69
 Seaboat quality  (Average = 1.00): 1.56

Hull form characteristics:
 Hull has rise forward of midbreak
   and transom stern
 Block coefficient: 0.603
 Length to Beam Ratio: 9.67 : 1
 'Natural speed' for length: 30.48 kts
 Power going to wave formation at top speed: 58 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 3.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  37.00 ft / 11.28 m
    - Forecastle (78 %): 32.00 ft / 9.75 m
    - Mid (78 %):  32.00 ft / 9.75 m (22.00 ft / 6.71 m aft of break)
    - Quarterdeck (15 %): 22.00 ft / 6.71 m
    - Stern:  22.00 ft / 6.71 m
    - Average freeboard: 31.36 ft / 9.56 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 109.7 %
  - Above water (accommodation/working, high = better): 190.0 %
 Waterplane Area: 41,567 Square feet or 3,862 Square metres
 Displacement factor (Displacement / loading): 124 %
 Structure weight / hull surface area: 126 lbs/sq ft or 617 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.92
  - Longitudinal: 2.10
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent
 Ship has slow, easy roll, a good, steady gun platform
 Excellent seaboat, comfortable, can fire her guns in the heaviest weather