The anachronistic Achilles design

The anachronistic version of the Achilles is more capable in many ways. I chose the 1868 armament, which was 4-7in MLR on the upper deck and 4-8in MLR and 18-7in MLR on the main deck. The armour basis is just 4.5in, but the speed is now 23 knots and the range is 4,900nm at 14 knots. The anachronistic armament includes 4-6.5in in twin turrets with 6-5.5in in two triple turrets. The other 16-5.5in guns are in casemates. This is the Springsharp report:

Achilles, anachronistic version, Great Britain Armoured Cruiser laid down 1907

Displacement:
 8,143 t light; 8,520 t standard; 9,820 t normal; 10,860 t full load

Dimensions: Length overall / water x beam x draught
 385.15 ft / 382.00 ft x 58.00 ft x 27.00 ft (normal load)
 117.39 m / 116.43 m x 17.68 m  x 8.23 m

Armament:
      4 - 6.50" / 165 mm guns (2x2 guns), 137.31lbs / 62.28kg shells, 1907 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread
      6 - 5.50" / 140 mm guns (2x3 guns), 83.19lbs / 37.73kg shells, 1907 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread, all raised mounts
      16 - 5.50" / 140 mm guns in single mounts, 83.19lbs / 37.73kg shells, 1907 Model
   Breech loading guns in casemate mounts 
   on side, evenly spread
   16 guns in hull casemates - Limited use in heavy seas
 Weight of broadside 2,379 lbs / 1,079 kg
 Shells per gun, main battery: 120

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.50" / 114 mm 225.00 ft / 68.58 m 16.00 ft / 4.88 m
 Ends: 2.50" / 64 mm 147.00 ft / 44.81 m 16.00 ft / 4.88 m
   10.00 ft / 3.05 m Unarmoured ends
   Main Belt covers 91 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.00" / 25 mm 190.00 ft / 57.91 m 27.00 ft / 8.23 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 4.50" / 114 mm 3.00" / 76 mm  4.50" / 114 mm
 2nd: 4.00" / 102 mm 3.00" / 76 mm  4.00" / 102 mm
 3rd: 3.00" / 76 mm 3.00" / 76 mm  3.00" / 76 mm

   - Armour deck: 1.00" / 25 mm, Conning tower: 4.50" / 114 mm

Machinery:
 Coal fired boilers, complex reciprocating steam engines, 
 Direct drive, 2 shafts, 28,841 ihp / 21,516 Kw = 23.00 kts
 Range 4,900nm at 14.00 kts
 Bunker at max displacement = 2,339 tons (100% coal)

Complement:
 493 - 641

Cost:
 £0.983 million / $3.934 million

Distribution of weights at normal displacement:
 Armament: 297 tons, 3.0 %
 Armour: 1,962 tons, 20.0 %
    - Belts: 939 tons, 9.6 %
    - Torpedo bulkhead: 190 tons, 1.9 %
    - Armament: 496 tons, 5.1 %
    - Armour Deck: 293 tons, 3.0 %
    - Conning Tower: 44 tons, 0.5 %
 Machinery: 3,205 tons, 32.6 %
 Hull, fittings & equipment: 2,679 tons, 27.3 %
 Fuel, ammunition & stores: 1,677 tons, 17.1 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   6,146 lbs / 2,788 Kg = 44.8 x 6.5 " / 165 mm shells or 1.1 torpedoes
 Stability (Unstable if below 1.00): 1.30
 Metacentric height 3.5 ft / 1.1 m
 Roll period: 13.0 seconds
 Steadiness - As gun platform (Average = 50 %): 57 %
   - Recoil effect (Restricted arc if above 1.00): 0.43
 Seaboat quality  (Average = 1.00): 1.13

Hull form characteristics:
 Hull has a flush deck
 Block coefficient: 0.575
 Length to Beam Ratio: 6.59 : 1
 'Natural speed' for length: 19.54 kts
 Power going to wave formation at top speed: 59 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 3.00 degrees
 Stern overhang: 2.00 ft / 0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  22.00 ft / 6.71 m
    - Forecastle (20 %): 18.00 ft / 5.49 m
    - Mid (50 %):  18.00 ft / 5.49 m
    - Quarterdeck (15 %): 18.00 ft / 5.49 m
    - Stern:  18.00 ft / 5.49 m
    - Average freeboard: 18.32 ft / 5.58 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 196.7 %
  - Above water (accommodation/working, high = better): 110.0 %
 Waterplane Area: 15,823 Square feet or 1,470 Square metres
 Displacement factor (Displacement / loading): 91 %
 Structure weight / hull surface area: 100 lbs/sq ft or 488 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.90
  - Longitudinal: 2.56
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is adequate