I wanted to see if I could get more speed

I wanted to see if I could get more speed from the design, while altering specifications as little as possible. I was able to achieve 42 knots, although at the expense of seakeeping and pretection. The displacement had to rise, and the draft is almost unmanageably great. This is the Springsharp report:

GB/CB/1916 Design Study-Alt1, Enter country Enter ship type laid down 1916 (Engine 1950)

Displacement:
 39,566 t light; 41,237 t standard; 42,650 t normal; 43,781 t full load

Dimensions: Length overall / water x beam x draught
 852.04 ft / 850.00 ft x 105.00 ft x 41.00 ft (normal load)
 259.70 m / 259.08 m x 32.00 m  x 12.50 m

Armament:
      6 - 18.00" / 457 mm guns (2x3 guns), 2,916.00lbs / 1,322.68kg shells, 1916 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread
      12 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1916 Model
   Quick firing guns in deck mounts with hoists
   on side, all amidships
 Weight of broadside 18,246 lbs / 8,276 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.00" / 102 mm 560.00 ft / 170.69 m 8.00 ft / 2.44 m
 Ends: Unarmoured
   Main Belt covers 101 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 6.00" / 152 mm 4.00" / 102 mm  5.00" / 127 mm
 2nd: 2.00" / 51 mm       -         -

   - Armour deck: 1.00" / 25 mm, Conning tower: 5.00" / 127 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 8 shafts, 530,596 shp / 395,824 Kw = 42.00 kts
 Range 4,900nm at 15.00 kts
 Bunker at max displacement = 2,544 tons

Complement:
 1,483 - 1,929

Cost:
 £8.309 million / $33.236 million

Distribution of weights at normal displacement:
 Armament: 2,281 tons, 5.3 %
 Armour: 3,194 tons, 7.5 %
    - Belts: 753 tons, 1.8 %
    - Torpedo bulkhead: 0 tons, 0.0 %
    - Armament: 1,289 tons, 3.0 %
    - Armour Deck: 1,021 tons, 2.4 %
    - Conning Tower: 131 tons, 0.3 %
 Machinery: 12,694 tons, 29.8 %
 Hull, fittings & equipment: 21,397 tons, 50.2 %
 Fuel, ammunition & stores: 3,084 tons, 7.2 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   27,704 lbs / 12,566 Kg = 9.5 x 18.0 " / 457 mm shells or 2.2 torpedoes
 Stability (Unstable if below 1.00): 1.12
 Metacentric height 6.7 ft / 2.0 m
 Roll period: 17.1 seconds
 Steadiness - As gun platform (Average = 50 %): 50 %
   - Recoil effect (Restricted arc if above 1.00): 0.87
 Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
 Hull has a flush deck
 Block coefficient: 0.408
 Length to Beam Ratio: 8.10 : 1
 'Natural speed' for length: 29.15 kts
 Power going to wave formation at top speed: 62 %
 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:  39.00 ft / 11.89 m
    - Forecastle (20 %): 34.00 ft / 10.36 m
    - Mid (75 %):  34.00 ft / 10.36 m
    - Quarterdeck (15 %): 34.00 ft / 10.36 m
    - Stern:  34.00 ft / 10.36 m
    - Average freeboard: 34.40 ft / 10.49 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 135.6 %
  - Above water (accommodation/working, high = better): 241.1 %
 Waterplane Area: 55,199 Square feet or 5,128 Square metres
 Displacement factor (Displacement / loading): 91 %
 Structure weight / hull surface area: 229 lbs/sq ft or 1,118 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.90
  - Longitudinal: 2.73
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent