The French battleship design F/BB/1921

Blogger was down last night, so I am posting this today, instead of yesterday. The next logical step seemed to be to move to a larger caliber gun for French battleships. We are designing ships as if the Washington Naval Treaty didn't exist, so we can go larger and have larger guns than was the case in "real life". This design has 8-16.5in guns in quadruple turrets, 16-5.5in QF guns in twin turrets, and the usual AA armament. The speed is now 28 knots with a range of 7.500nm at 15 knots. The armour basis is 14 inches with a 6 inch deck. This is the Springsharp report:

F/BB/1921, France Battleship laid down 1921

Displacement:
 42,864 t light; 44,697 t standard; 47,500 t normal; 49,743 t full load

Dimensions: Length overall / water x beam x draught
 749.03 ft / 745.00 ft x 102.00 ft x 33.00 ft (normal load)
 228.30 m / 227.08 m x 31.09 m  x 10.06 m

Armament:
      8 - 16.54" / 420 mm guns (2x4 guns), 2,260.56lbs / 1,025.37kg shells, 1921 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread, 1 raised mount
      16 - 5.51" / 140 mm guns (8x2 guns), 83.72lbs / 37.98kg shells, 1921 Model
   Quick firing guns in turrets (on barbettes)
   on side, all amidships, all raised mounts - superfiring
      4 - 3.54" / 90.0 mm guns in single mounts, 22.24lbs / 10.09kg shells, 1921 Model
   Anti-aircraft guns in deck mounts with hoists
   on side, all amidships
      16 - 1.85" / 47.0 mm guns in single mounts, 3.17lbs / 1.44kg shells, 1921 Model
   Anti-aircraft guns in deck mounts 
   on side, evenly spread, 8 raised mounts
 Weight of broadside 19,564 lbs / 8,874 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 14.0" / 356 mm 550.00 ft / 167.64 m 16.00 ft / 4.88 m
 Ends: 5.00" / 127 mm 195.00 ft / 59.44 m 12.00 ft / 3.66 m
   Main Belt covers 114 % of normal length

   - Torpedo Bulkhead:
  3.00" / 76 mm 550.00 ft / 167.64 m 30.00 ft / 9.14 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 14.0" / 356 mm 11.0" / 279 mm  14.0" / 356 mm
 2nd: 5.00" / 127 mm 5.00" / 127 mm  5.00" / 127 mm

   - Armour deck: 6.00" / 152 mm, Conning tower: 14.00" / 356 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 131,943 shp / 98,430 Kw = 28.00 kts
 Range 7,500nm at 15.00 kts
 Bunker at max displacement = 5,046 tons

Complement:
 1,608 - 2,091

Cost:
 £10.667 million / $42.667 million

Distribution of weights at normal displacement:
 Armament: 2,445 tons, 5.1 %
 Armour: 17,927 tons, 37.7 %
    - Belts: 5,632 tons, 11.9 %
    - Torpedo bulkhead: 1,832 tons, 3.9 %
    - Armament: 3,529 tons, 7.4 %
    - Armour Deck: 6,539 tons, 13.8 %
    - Conning Tower: 396 tons, 0.8 %
 Machinery: 4,544 tons, 9.6 %
 Hull, fittings & equipment: 17,948 tons, 37.8 %
 Fuel, ammunition & stores: 4,636 tons, 9.8 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   64,308 lbs / 29,169 Kg = 28.4 x 16.5 " / 420 mm shells or 10.2 torpedoes
 Stability (Unstable if below 1.00): 1.06
 Metacentric height 5.7 ft / 1.7 m
 Roll period: 17.9 seconds
 Steadiness - As gun platform (Average = 50 %): 55 %
   - Recoil effect (Restricted arc if above 1.00): 0.88
 Seaboat quality  (Average = 1.00): 1.09

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.663
 Length to Beam Ratio: 7.30 : 1
 'Natural speed' for length: 27.29 kts
 Power going to wave formation at top speed: 53 %
 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 %): 26.00 ft / 7.92 m
    - Mid (67 %):  26.00 ft / 7.92 m (18.00 ft / 5.49 m aft of break)
    - Quarterdeck (15 %): 18.00 ft / 5.49 m
    - Stern:  18.00 ft / 5.49 m
    - Average freeboard: 23.60 ft / 7.19 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 86.7 %
  - Above water (accommodation/working, high = better): 166.0 %
 Waterplane Area: 58,907 Square feet or 5,473 Square metres
 Displacement factor (Displacement / loading): 102 %
 Structure weight / hull surface area: 216 lbs/sq ft or 1,054 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.96
  - Longitudinal: 1.40
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent