The "Ideal Battleship" with oil-fired boilers and turbines is really interesting

If you allow the "Ideal Battleship" to have turbine engines and oil-fired boilers, the ship becomes really interesting. Oil-fired boilers seems to make a big difference. All the specifications stay the same, but the displacement drops. This is the Springsharp report from Springsharp 3.0b Beta:

Ideal Battleship-Modified, Great Britain Battleship laid down 1905 (Engine 1909)

Displacement:
 22,302 t light; 23,335 t standard; 25,094 t normal; 26,501 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (603.00 ft / 589.00 ft) x 87.00 ft x (29.50 / 30.84 ft)
 (183.79 m / 179.53 m) x 26.52 m  x (8.99 / 9.40 m)

Armament:
      8 - 12.00" / 305 mm 45.0 cal guns - 871.37lbs / 395.24kg shells, 90 per gun
   Breech loading guns in turret on barbette mounts , 1905 Model
   2 x Twin mounts on centreline ends, evenly spread
   2 x Twin mounts on sides, forward deck aft
  2 double raised mounts
      4 - 12.00" / 305 mm 45.0 cal guns - 871.37lbs / 395.24kg shells, 90 per gun
   Breech loading guns in turret on barbette mounts , 1905 Model
   4 x Single mounts on sides, evenly spread
      12 - 3.00" / 76.2 mm 45.0 cal guns - 13.62lbs / 6.18kg shells, 90 per gun
   Quick firing guns in casemate mounts , 1905 Model
   12 x Single mounts on sides, evenly spread
  12 hull mounts in casemates- Limited use in heavy seas
 Weight of broadside 10,620 lbs / 10,620 kg

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 12.0" / 305 mm 350.00 ft / 106.68 m 8.00 ft / 2.44 m
 Ends: 12.0" / 305 mm 239.00 ft / 72.85 m 8.00 ft / 2.44 m
 Upper: 12.0" / 305 mm 230.00 ft / 70.10 m 8.00 ft / 2.44 m
   Main Belt covers 91 % of normal length

   - Torpedo Bulkhead:
  1.50" / 38 mm 350.00 ft / 106.68 m 29.50 ft / 8.99 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 12.0" / 305 mm 7.00" / 178 mm  12.0" / 305 mm
 2nd: 12.0" / 305 mm 7.00" / 178 mm  12.0" / 305 mm
 3rd: 6.00" / 152 mm 4.00" / 102 mm  4.00" / 102 mm

   - Armour deck: 2.00" / 51 mm, Conning tower: 12.00" / 305 mm

Machinery:
 Oil fired boilers, steam turbines, 
 ERROR: Revise drives, 4 shafts, 51,490 shp / 38,411 Kw = 24.00 kts
 Range 5,200nm at 14.00 kts
 Bunker at max displacement = 3,165 tons

Complement:
 996 - 1,295

Cost:
 £2.092 million / $8.370 million

Distribution of weights at normal displacement:
 Armament: 2,031 tons, 8.1 %
 Armour: 8,923 tons, 35.6 %
    - Belts: 3,431 tons, 13.7 %
    - Torpedo bulkhead: 573 tons, 2.3 %
    - Armament: 3,334 tons, 13.3 %
    - Armour Deck: 1,362 tons, 5.4 %
    - Conning Tower: 222 tons, 0.9 %
 Machinery: 2,340 tons, 9.3 %
 Hull, fittings & equipment: 9,868 tons, 39.3 %
 Fuel, ammunition & stores: 2,791 tons, 11.1 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   35,234 lbs / 15,982 Kg = 40.8 x 12.0 " / 305 mm shells or 5.8 torpedoes
 Stability (Unstable if below 1.00): 1.01
 Metacentric height 4.2 ft / 1.3 m
 Roll period: 17.9 seconds
 Steadiness - As gun platform (Average = 50 %): 53 %
   - Recoil effect (Restricted arc if above 1.00): 0.84
 Seaboat quality  (Average = 1.00): 1.17

Hull form characteristics:
 Hull has raised forecastle,
   a ram bow and a round stern
 Block coefficient (normal/deep): 0.581 / 0.587
 Length to Beam Ratio: 6.77 : 1
 'Natural speed' for length: 24.27 kts
 Power going to wave formation at top speed: 50 %
 Trim (Max stability = 0, Max steadiness = 100): 45
 Bow angle (Positive = bow angles forward): 0.00 degrees
 Stern overhang: 6.00 ft / 1.83 m
 Freeboard (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 8.00 %,  28.00 ft / 8.53 m,  28.00 ft / 8.53 m
    - Forward deck: 30.00 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
    - Aft deck: 47.00 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
    - Quarter deck: 15.00 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
    - Average freeboard:  20.64 ft / 6.29 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 85.6 %
  - Above water (accommodation/working, high = better): 140.8 %
 Waterplane Area: 36,817 Square feet or 3,420 Square metres
 Displacement factor (Displacement / loading): 109 %
 Structure weight / hull surface area: 184 lbs/sq ft or 896 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.96
  - Longitudinal: 1.58
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent