The British 1918 heavy cruiser worked much better

Like the 1916 design, the 1918 British heavy cruiser design, continuing the design series, has 8-9.2in guns. It also has 12-4.7in QF, 4-4.7in AA, and 16-2pdr AA guns. Again, there are no torpedo tubes. The armour basis is 4in, although there are 5in turret faces on the 9.2in guns. The speed is increased to 32 knots. As this design series is pretty conservative, I did not try for a higher speed. The range is increased to 5,400nm at a cruising speed of 15 knots. This is the Springsharp report:

GB/CA/1916, Great Britain Heavy Cruiser laid down 1918

Displacement:
 14,648 t light; 15,255 t standard; 16,400 t normal; 17,316 t full load

Dimensions: Length overall / water x beam x draught
 655.96 ft / 654.00 ft x 66.00 ft x 23.00 ft (normal load)
 199.94 m / 199.34 m x 20.12 m  x 7.01 m

Armament:
      8 - 9.20" / 234 mm guns (4x2 guns), 389.34lbs / 176.60kg shells, 1918 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread, 2 raised mounts - superfiring
      12 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1918 Model
   Quick firing guns in deck mounts with hoists
   on side, all amidships, 4 raised mounts - superfiring
      4 - 4.70" / 119 mm guns in single mounts, 51.91lbs / 23.55kg shells, 1918 Model
   Anti-aircraft guns in deck mounts with hoists
   on side, evenly spread
      16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.89kg shells, 1918 Model
   Anti-aircraft guns in deck mounts 
   on side ends, evenly spread
 Weight of broadside 3,977 lbs / 1,804 kg
 Shells per gun, main battery: 120

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.00" / 102 mm 575.00 ft / 175.26 m 16.00 ft / 4.88 m
 Ends: Unarmoured
   Main Belt covers 135 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.00" / 25 mm 575.00 ft / 175.26 m 21.00 ft / 6.40 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 5.00" / 127 mm 3.00" / 76 mm  4.00" / 102 mm
 2nd: 2.00" / 51 mm       -   2.00" / 51 mm
 4th: 1.00" / 25 mm       -         -

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

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 114,044 shp / 85,077 Kw = 32.00 kts
 Range 5,400nm at 15.00 kts
 Bunker at max displacement = 2,062 tons

Complement:
 723 - 941

Cost:
 £3.012 million / $12.050 million

Distribution of weights at normal displacement:
 Armament: 497 tons, 3.0 %
 Armour: 3,740 tons, 22.8 %
    - Belts: 1,470 tons, 9.0 %
    - Torpedo bulkhead: 447 tons, 2.7 %
    - Armament: 624 tons, 3.8 %
    - Armour Deck: 1,144 tons, 7.0 %
    - Conning Tower: 56 tons, 0.3 %
 Machinery: 4,114 tons, 25.1 %
 Hull, fittings & equipment: 6,297 tons, 38.4 %
 Fuel, ammunition & stores: 1,752 tons, 10.7 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   17,873 lbs / 8,107 Kg = 45.9 x 9.2 " / 234 mm shells or 2.2 torpedoes
 Stability (Unstable if below 1.00): 1.15
 Metacentric height 3.5 ft / 1.1 m
 Roll period: 14.9 seconds
 Steadiness - As gun platform (Average = 50 %): 54 %
   - Recoil effect (Restricted arc if above 1.00): 0.80
 Seaboat quality  (Average = 1.00): 1.08

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.578
 Length to Beam Ratio: 9.91 : 1
 'Natural speed' for length: 25.57 kts
 Power going to wave formation at top speed: 56 %
 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:  28.00 ft / 8.53 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: 22.60 ft / 6.89 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 150.1 %
  - Above water (accommodation/working, high = better): 185.7 %
 Waterplane Area: 30,931 Square feet or 2,874 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: 0.97
  - Longitudinal: 1.29
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent