An anachronistic Minotaur design

I had an anachronistic drawing of a Minotaur armoured cruiser, dating the the 1980's that I decided to do in Springsharp 3.0b1 Beta. This is a photograph of the pencil drawing:

The design works reasonably well in Springsharp. Probably, if had used turbines and oil fuel, it would have been very good. I may try that, yet. The ship has 4-9.2in/50, 10-7.5in/50, and 16-12pdr QF guns. The armour basis is 6in. The displacement is a bit high, but other wise, the ship is reasonably good. Of course, the machinery is light, although the boilers are coal-fired and the machinery is reciprocating. This is the Springsharp report:

Minotaur class, anchronistic, Great Britain Armoured Cruiser laid down 1908 (Engine 1912)

Displacement:
 13,162 t light; 13,784 t standard; 15,600 t normal; 17,053 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (526.43 ft / 520.00 ft) x 75.00 ft x (25.00 / 26.85 ft)
 (160.46 m / 158.50 m) x 22.86 m  x (7.62 / 8.18 m)

Armament:
      4 - 9.20" / 234 mm 50.0 cal guns - 380.00lbs / 172.37kg shells, 150 per gun
   Breech loading guns in turret on barbette mounts , 1908 Model
   2 x Twin mounts on centreline ends, evenly spread
      10 - 7.50" / 191 mm 50.0 cal guns - 200.00lbs / 90.72kg shells, 150 per gun
   Breech loading guns in turret on barbette mounts , 1908 Model
   2 x Triple mounts on centreline ends, evenly spread
  2 raised mounts - superfiring
   2 x Twin mounts on sides, forward deck aft
      16 - 3.00" / 76.2 mm 45.0 cal guns - 12.00lbs / 5.44kg shells, 150 per gun
   Quick firing guns in deck and hoist mounts , 1908 Model
   4 x Twin mounts on sides, forward deck aft
  4 raised mounts
   4 x Twin mounts on sides, aft deck forward
  4 raised mounts
 Weight of broadside 3,712 lbs / 3,712 kg

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 6.00" / 152 mm 330.00 ft / 100.58 m 16.00 ft / 4.88 m
 Ends: 4.00" / 102 mm 190.00 ft / 57.91 m 16.00 ft / 4.88 m
   Main Belt covers 98 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.00" / 25 mm 330.00 ft / 100.58 m 25.00 ft / 7.62 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 6.00" / 152 mm 4.00" / 102 mm  6.00" / 152 mm
 2nd: 5.00" / 127 mm 4.00" / 102 mm  5.00" / 127 mm
 3rd: 3.00" / 76 mm 1.00" / 25 mm  3.00" / 76 mm

   - Armour deck: 2.00" / 51 mm, Conning tower: 6.00" / 152 mm

Machinery:
 Coal fired boilers, complex reciprocating steam engines, 
 Direct drive, 2 shafts, 39,750 ihp / 29,653 Kw = 24.00 kts
 Range 4,800nm at 15.00 kts
 Bunker at max displacement = 3,269 tons (100% coal)

Complement:
 697 - 907

Cost:
 £1.256 million / $5.022 million

Distribution of weights at normal displacement:
 Armament: 1,017 tons, 6.5 %
 Armour: 4,305 tons, 27.6 %
    - Belts: 1,828 tons, 11.7 %
    - Torpedo bulkhead: 305 tons, 2.0 %
    - Armament: 1,075 tons, 6.9 %
    - Armour Deck: 1,017 tons, 6.5 %
    - Conning Tower: 81 tons, 0.5 %
 Machinery: 2,632 tons, 16.9 %
 Hull, fittings & equipment: 5,718 tons, 36.7 %
 Fuel, ammunition & stores: 2,438 tons, 15.6 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   22,306 lbs / 10,118 Kg = 57.3 x 9.2 " / 234 mm shells or 3.3 torpedoes
 Stability (Unstable if below 1.00): 1.15
 Metacentric height 4.2 ft / 1.3 m
 Roll period: 15.4 seconds
 Steadiness - As gun platform (Average = 50 %): 75 %
   - Recoil effect (Restricted arc if above 1.00): 0.60
 Seaboat quality  (Average = 1.00): 1.50

Hull form characteristics:
 Hull has a flush deck,
   a normal bow and a cruiser stern
 Block coefficient (normal/deep): 0.560 / 0.570
 Length to Beam Ratio: 6.93 : 1
 'Natural speed' for length: 22.80 kts
 Power going to wave formation at top speed: 52 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 9.00 degrees
 Stern overhang: 2.00 ft / 0.61 m
 Freeboard (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 20.00 %,  28.00 ft / 8.53 m,  25.00 ft / 7.62 m
    - Forward deck: 30.00 %,  25.00 ft / 7.62 m,  22.00 ft / 6.71 m
    - Aft deck: 35.00 %,  22.00 ft / 6.71 m,  22.00 ft / 6.71 m
    - Quarter deck: 15.00 %,  22.00 ft / 6.71 m,  23.00 ft / 7.01 m
    - Average freeboard:  23.37 ft / 7.12 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 109.4 %
  - Above water (accommodation/working, high = better): 170.4 %
 Waterplane Area: 27,474 Square feet or 2,552 Square metres
 Displacement factor (Displacement / loading): 114 %
 Structure weight / hull surface area: 134 lbs/sq ft or 653 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.93
  - Longitudinal: 1.97
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent
 Ship has slow, easy roll, a good, steady gun platform
 Excellent seaboat, comfortable, can fire her guns in the heaviest weather