The last in the series: F/CA/1941

The F/CA/1941 design is a jump in capability, and a rather radical recasting of the type. The hull is now flush-decked with a transom stern. The speed is increased to 35 knots and the range is increased to 7,500nm at 15 knots. The secondary armament is increased to 12-5.1in DP guns, and the light AA armament is increased to 48-47mm AA guns in twin mounts. Making the hull flush-decked made the recoil more of an issue, and I had to adjust dimensions and other characteristics to bring the number under 1.0. This is the Springsharp report:

F/CA/1941, France Cruiser laid down 1941 (Engine 1945)

Displacement:
 16,230 t light; 16,903 t standard; 18,100 t normal; 19,058 t full load

Dimensions: Length overall / water x beam x draught
 688.80 ft / 684.00 ft x 69.00 ft x 22.00 ft (normal load)
 209.95 m / 208.48 m x 21.03 m  x 6.71 m

Armament:
      9 - 9.45" / 240 mm guns (3x3 guns), 421.80lbs / 191.32kg shells, 1941 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, majority forward, 1 raised mount - superfiring
      12 - 5.12" / 130 mm guns (6x2 guns), 67.03lbs / 30.41kg shells, 1941 Model
   Dual purpose guns in deck mounts with hoists
   on side, all amidships
      16 - 3.94" / 100 mm guns (8x2 guns), 30.51lbs / 13.84kg shells, 1941 Model
   Anti-aircraft guns in deck mounts with hoists
   on side, all amidships, 4 raised mounts - superfiring
      48 - 1.85" / 47.0 mm guns (24x2 guns), 3.17lbs / 1.44kg shells, 1941 Model
   Anti-aircraft guns in deck mounts 
   on side, evenly spread, 16 raised mounts
 Weight of broadside 5,241 lbs / 2,377 kg
 Shells per gun, main battery: 100
 8 - 21.7" / 549.9999 mm above water torpedoes

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.00" / 102 mm 460.00 ft / 140.21 m 16.00 ft / 4.88 m
 Ends: Unarmoured
   Main Belt covers 103 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.00" / 25 mm 460.00 ft / 140.21 m 22.00 ft / 6.71 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: 2.50" / 64 mm, Conning tower: 4.00" / 102 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 151,777 shp / 113,226 Kw = 35.00 kts
 Range 7,500nm at 15.00 kts
 Bunker at max displacement = 2,155 tons

Complement:
 779 - 1,014

Cost:
 £10.230 million / $40.921 million

Distribution of weights at normal displacement:
 Armament: 655 tons, 3.6 %
 Armour: 3,994 tons, 22.1 %
    - Belts: 1,225 tons, 6.8 %
    - Torpedo bulkhead: 374 tons, 2.1 %
    - Armament: 655 tons, 3.6 %
    - Armour Deck: 1,680 tons, 9.3 %
    - Conning Tower: 59 tons, 0.3 %
 Machinery: 3,833 tons, 21.2 %
 Hull, fittings & equipment: 7,747 tons, 42.8 %
 Fuel, ammunition & stores: 1,870 tons, 10.3 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   24,189 lbs / 10,972 Kg = 57.3 x 9.4 " / 240 mm shells or 2.8 torpedoes
 Stability (Unstable if below 1.00): 1.12
 Metacentric height 3.5 ft / 1.1 m
 Roll period: 15.4 seconds
 Steadiness - As gun platform (Average = 50 %): 52 %
   - Recoil effect (Restricted arc if above 1.00): 0.94
 Seaboat quality  (Average = 1.00): 1.05

Hull form characteristics:
 Hull has a flush deck
   and transom stern
 Block coefficient: 0.610
 Length to Beam Ratio: 9.91 : 1
 'Natural speed' for length: 29.53 kts
 Power going to wave formation at top speed: 60 %
 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:  32.00 ft / 9.75 m
    - Forecastle (20 %): 25.00 ft / 7.62 m
    - Mid (67 %):  25.00 ft / 7.62 m
    - Quarterdeck (15 %): 25.00 ft / 7.62 m
    - Stern:  25.00 ft / 7.62 m
    - Average freeboard: 25.56 ft / 7.79 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 135.4 %
  - Above water (accommodation/working, high = better): 194.5 %
 Waterplane Area: 36,325 Square feet or 3,375 Square metres
 Displacement factor (Displacement / loading): 107 %
 Structure weight / hull surface area: 134 lbs/sq ft or 654 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.95
  - Longitudinal: 1.61
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent