The F/CA/1917 Mod.A from the Red Book drawing

The next page in the Red Book is a drawing of what I have been calling the F/CA/1917 Mod.A cruiser. This drawing has the advantage that it shows the armoured length of the citadel. I have raised the freeboard and increased the draft to see if I could obtain a higher speed, while still maintaining a modest protection. The armament is 9-11in guns in triple turrets, grouped forward, with 8-6in QF guns amidships, with shields. I have included a thin torpedo bulkhead. I also slightly increased the displacement. Springsharp rates the survivability higher than I would have expected:

F/CA/1917, France Heavy Cruiser laid down 1917 (Engine 1941)

Displacement:
 17,267 t light; 17,873 t standard; 19,200 t normal; 20,262 t full load

Dimensions: Length overall / water x beam x draught
 731.31 ft / 729.00 ft x 80.00 ft x 24.00 ft (normal load)
 222.90 m / 222.20 m x 24.38 m  x 7.32 m

Armament:
      6 - 11.00" / 279 mm guns (2x3 guns), 665.50lbs / 301.87kg shells, 1917 Model
   Breech loading guns in turrets (on barbettes)
   on centreline, all forward, 1 raised mount - superfiring
      8 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1917 Model
   Quick firing guns in deck mounts with hoists
   on side, all amidships
 Weight of broadside 4,857 lbs / 2,203 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.00" / 102 mm 400.00 ft / 121.92 m 10.00 ft / 3.05 m
 Ends: Unarmoured
   Main Belt covers 84 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  0.75" / 19 mm 400.00 ft / 121.92 m 23.00 ft / 7.01 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: 1.75" / 44 mm, Conning tower: 4.00" / 102 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 187,527 shp / 139,895 Kw = 36.00 kts
 Range 7,500nm at 15.00 kts
 Bunker at max displacement = 2,388 tons

Complement:
 815 - 1,060

Cost:
 £3.288 million / $13.150 million

Distribution of weights at normal displacement:
 Armament: 607 tons, 3.2 %
 Armour: 2,833 tons, 14.8 %
    - Belts: 691 tons, 3.6 %
    - Torpedo bulkhead: 255 tons, 1.3 %
    - Armament: 589 tons, 3.1 %
    - Armour Deck: 1,236 tons, 6.4 %
    - Conning Tower: 62 tons, 0.3 %
 Machinery: 4,956 tons, 25.8 %
 Hull, fittings & equipment: 8,871 tons, 46.2 %
 Fuel, ammunition & stores: 1,933 tons, 10.1 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   22,191 lbs / 10,065 Kg = 33.3 x 11.0 " / 279 mm shells or 2.6 torpedoes
 Stability (Unstable if below 1.00): 1.20
 Metacentric height 5.0 ft / 1.5 m
 Roll period: 15.0 seconds
 Steadiness - As gun platform (Average = 50 %): 54 %
   - Recoil effect (Restricted arc if above 1.00): 0.54
 Seaboat quality  (Average = 1.00): 1.08

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.480
 Length to Beam Ratio: 9.11 : 1
 'Natural speed' for length: 27.00 kts
 Power going to wave formation at top speed: 58 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 4.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  33.00 ft / 10.06 m
    - Forecastle (20 %): 28.00 ft / 8.53 m
    - Mid (62 %):  28.00 ft / 8.53 m (20.00 ft / 6.10 m aft of break)
    - Quarterdeck (15 %): 20.00 ft / 6.10 m
    - Stern:  20.00 ft / 6.10 m
    - Average freeboard: 25.36 ft / 7.73 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 143.0 %
  - Above water (accommodation/working, high = better): 224.5 %
 Waterplane Area: 38,169 Square feet or 3,546 Square metres
 Displacement factor (Displacement / loading): 109 %
 Structure weight / hull surface area: 150 lbs/sq ft or 730 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.95
  - Longitudinal: 1.55
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent