The F/CA/1921 design

The F/CA/1921 design was an attempt to have harder-hitting guns that what had been carried previously. The design now has 8-9.4in (24cm) guns for the main armament. The AA armament was increased, as well. The heavy AA armament now has 6-90mm guns. This is the Springsharp report:

F/CA/1921, France Cruiser laid down 1921 (Engine 1925)

Displacement:
 13,119 t light; 13,650 t standard; 14,600 t normal; 15,360 t full load

Dimensions: Length overall / water x beam x draught
 634.71 ft / 630.00 ft x 64.00 ft x 22.00 ft (normal load)
 193.46 m / 192.02 m x 19.51 m  x 6.71 m

Armament:
      8 - 9.45" / 240 mm guns (4x2 guns), 421.80lbs / 191.32kg shells, 1921 Model
   Breech loading guns in turrets (on barbettes)
   on centreline, evenly spread, 2 raised mounts
   Aft Main mounts separated by engine room
      8 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.41kg shells, 1921 Model
   Quick firing guns in deck mounts with hoists
   on side, all amidships
      6 - 3.54" / 90.0 mm guns (4 mounts), 22.24lbs / 10.09kg shells, 1921 Model
   Anti-aircraft guns in deck mounts 
   on side, all amidships, 2 raised mounts - superfiring
      24 - 1.85" / 47.0 mm guns (16 mounts), 3.17lbs / 1.44kg shells, 1921 Model
   Anti-aircraft guns in deck mounts 
   on side, evenly spread, 8 raised mounts
 Weight of broadside 4,120 lbs / 1,869 kg
 Shells per gun, main battery: 100
 6 - 21.7" / 549.9999 mm above water torpedoes

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.00" / 102 mm 430.00 ft / 131.06 m 12.00 ft / 3.66 m
 Ends: 3.00" / 76 mm 175.00 ft / 53.34 m 10.00 ft / 3.05 m
   25.00 ft / 7.62 m Unarmoured ends
   Main Belt covers 105 % 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 18.00 ft / 5.49 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 4.00" / 102 mm 3.00" / 76 mm  4.00" / 102 mm
 2nd: 2.00" / 51 mm 2.00" / 51 mm  2.00" / 51 mm

   - Armour deck: 2.00" / 51 mm, Conning tower: 4.00" / 102 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 107,854 shp / 80,459 Kw = 32.00 kts
 Range 5,400nm at 15.00 kts
 Bunker at max displacement = 1,711 tons

Complement:
 663 - 863

Cost:
 £3.518 million / $14.071 million

Distribution of weights at normal displacement:
 Armament: 515 tons, 3.5 %
 Armour: 3,109 tons, 21.3 %
    - Belts: 1,051 tons, 7.2 %
    - Torpedo bulkhead: 286 tons, 2.0 %
    - Armament: 653 tons, 4.5 %
    - Armour Deck: 1,067 tons, 7.3 %
    - Conning Tower: 51 tons, 0.4 %
 Machinery: 3,502 tons, 24.0 %
 Hull, fittings & equipment: 5,993 tons, 41.0 %
 Fuel, ammunition & stores: 1,481 tons, 10.1 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   16,059 lbs / 7,284 Kg = 38.1 x 9.4 " / 240 mm shells or 2.0 torpedoes
 Stability (Unstable if below 1.00): 1.10
 Metacentric height 3.1 ft / 0.9 m
 Roll period: 15.3 seconds
 Steadiness - As gun platform (Average = 50 %): 54 %
   - Recoil effect (Restricted arc if above 1.00): 0.96
 Seaboat quality  (Average = 1.00): 1.07

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.576
 Length to Beam Ratio: 9.84 : 1
 'Natural speed' for length: 25.10 kts
 Power going to wave formation at top speed: 57 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 5.00 degrees
 Stern overhang: 2.00 ft / 0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  31.00 ft / 9.45 m
    - Forecastle (20 %): 25.00 ft / 7.62 m
    - Mid (67 %):  25.00 ft / 7.62 m (17.00 ft / 5.18 m aft of break)
    - Quarterdeck (15 %): 17.00 ft / 5.18 m
    - Stern:  17.00 ft / 5.18 m
    - Average freeboard: 22.84 ft / 6.96 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 151.9 %
  - Above water (accommodation/working, high = better): 168.2 %
 Waterplane Area: 28,836 Square feet or 2,679 Square metres
 Displacement factor (Displacement / loading): 103 %
 Structure weight / hull surface area: 126 lbs/sq ft or 616 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.96
  - Longitudinal: 1.45
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent