The F/CL/1927 design

The F/CL/1927 design is a rather large vessel with a high speed and a modest armament. The main armament is now 9-6.1in QF guns in triple mounts. The AA armament is increased to 8-90mm guns in twin mounts and 24-47mm guns in twin mounts. The ship is well-protected against gunfire and not so well protected against underwater attack. At least the range is now 6,500nm at 15 knots. This is the Springsharp report:

F/CL/1927, France Light Cruiser laid down 1927 (Engine 1931)

Displacement:
 11,178 t light; 11,519 t standard; 12,500 t normal; 13,285 t full load

Dimensions: Length overall / water x beam x draught
 660.62 ft / 655.00 ft x 59.00 ft x 19.00 ft (normal load)
 201.36 m / 199.64 m x 17.98 m  x 5.79 m

Armament:
      9 - 6.10" / 155 mm guns (3x3 guns), 113.62lbs / 51.54kg shells, 1927 Model
   Quick firing guns in deck mounts with hoists
   on centreline ends, majority forward, 1 raised mount - superfiring
      8 - 3.54" / 90.0 mm guns (4x2 guns), 22.24lbs / 10.09kg shells, 1927 Model
   Anti-aircraft guns in deck mounts with hoists
   on side, evenly spread, all raised mounts
      24 - 1.85" / 47.0 mm guns (12x2 guns), 3.17lbs / 1.44kg shells, 1927 Model
   Anti-aircraft guns in deck mounts with hoists
   on side, all amidships, 8 raised mounts - superfiring
 Weight of broadside 1,277 lbs / 579 kg
 Shells per gun, main battery: 120
 8 - 21.7" / 549.9999 mm above water torpedoes

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 3.00" / 76 mm 440.00 ft / 134.11 m 12.00 ft / 3.66 m
 Ends: 2.00" / 51 mm 160.00 ft / 48.77 m 8.00 ft / 2.44 m
   55.00 ft / 16.76 m Unarmoured ends
   Main Belt covers 103 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.00" / 25 mm 440.00 ft / 134.11 m 18.00 ft / 5.49 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 3.00" / 76 mm 2.00" / 51 mm  3.00" / 76 mm
 2nd: 1.00" / 25 mm 1.00" / 25 mm  1.00" / 25 mm

   - Armour deck: 2.00" / 51 mm, Conning tower: 3.00" / 76 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 2 shafts, 137,994 shp / 102,943 Kw = 35.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 1,765 tons

Complement:
 590 - 768

Cost:
 £4.011 million / $16.044 million

Distribution of weights at normal displacement:
 Armament: 160 tons, 1.3 %
 Armour: 2,218 tons, 17.7 %
    - Belts: 747 tons, 6.0 %
    - Torpedo bulkhead: 293 tons, 2.3 %
    - Armament: 101 tons, 0.8 %
    - Armour Deck: 1,042 tons, 8.3 %
    - Conning Tower: 35 tons, 0.3 %
 Machinery: 4,127 tons, 33.0 %
 Hull, fittings & equipment: 4,674 tons, 37.4 %
 Fuel, ammunition & stores: 1,322 tons, 10.6 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   12,551 lbs / 5,693 Kg = 110.5 x 6.1 " / 155 mm shells or 1.6 torpedoes
 Stability (Unstable if below 1.00): 1.31
 Metacentric height 3.7 ft / 1.1 m
 Roll period: 13.0 seconds
 Steadiness - As gun platform (Average = 50 %): 53 %
   - Recoil effect (Restricted arc if above 1.00): 0.33
 Seaboat quality  (Average = 1.00): 1.06

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.596
 Length to Beam Ratio: 11.10 : 1
 'Natural speed' for length: 25.59 kts
 Power going to wave formation at top speed: 59 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 5.00 degrees
 Stern overhang: 3.00 ft / 0.91 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  30.00 ft / 9.14 m
    - Forecastle (20 %): 24.00 ft / 7.32 m
    - Mid (67 %):  24.00 ft / 7.32 m (16.00 ft / 4.88 m aft of break)
    - Quarterdeck (15 %): 16.00 ft / 4.88 m
    - Stern:  16.00 ft / 4.88 m
    - Average freeboard: 21.84 ft / 6.66 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 176.9 %
  - Above water (accommodation/working, high = better): 168.0 %
 Waterplane Area: 28,155 Square feet or 2,616 Square metres
 Displacement factor (Displacement / loading): 106 %
 Structure weight / hull surface area: 101 lbs/sq ft or 491 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.98
  - Longitudinal: 1.24
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent