The GB/BB/1906 battleship drawing from August 2001

I have a pencil drawing from August 2001 for the GB/BB/1906 battleship. My friend Cliff had conceived this design as a fast battleship that sacrificed armament to get speed and protection. I have kept the citadel armor the same length as the drawing, even though it is short, according to Springsharp. The nominal displacement intended was 25,000 tons, but that was too small for a normal displacement for this design. I had to increase that to 26,500 tons, which produced a standard displacement of only 23,811 tons. This is the Springsharp report:

GB/BB/1906, Great Britain Battleship laid down 1906

Displacement:
 23,005 t light; 23,811 t standard; 26,500 t normal; 28,652 t full load

Dimensions: Length overall / water x beam x draught
 680.00 ft / 680.00 ft x 87.70 ft x 27.00 ft (normal load)
 207.26 m / 207.26 m x 26.73 m  x 8.23 m

Armament:
     6 - 12.00" / 305 mm guns (3x2 guns), 864.00lbs / 391.90kg shells, 1906 Model
   Breech loading guns in turrets (on barbettes)
   on centreline, evenly spread, 1 raised mount
   Aft Main mounts separated by engine room
     8 - 6.00" / 152 mm guns (4x2 guns), 108.00lbs / 48.99kg shells, 1906 Model
   Quick firing guns in turrets (on barbettes)
   on side, all amidships
 Weight of broadside 6,048 lbs / 2,743 kg
 Shells per gun, main battery: 80

Armour:
  - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 13.7" / 348 mm 370.00 ft / 112.78 m 16.00 ft / 4.88 m
 Ends: Unarmoured
   Main Belt covers 84 % of normal length

  - Torpedo Bulkhead:
  2.00" / 51 mm 370.00 ft / 112.78 m 26.00 ft / 7.92 m

  - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 13.7" / 348 mm 9.00" / 229 mm  13.7" / 348 mm
 2nd: 6.00" / 152 mm 6.00" / 152 mm  6.00" / 152 mm

  - Armour deck: 3.00" / 76 mm, Conning tower: 13.70" / 348 mm

Machinery:
 Oil fired boilers, steam turbines,
 Direct drive, 4 shafts, 50,515 shp / 37,684 Kw = 24.00 kts
 Range 5,600nm at 15.00 kts
 Bunker at max displacement = 4,841 tons

Complement:
 1,038 - 1,350

Cost:
 £1.899 million / $7.598 million

Distribution of weights at normal displacement:
 Armament: 756 tons, 2.9 %
 Armour: 9,371 tons, 35.4 %
    - Belts: 3,597 tons, 13.6 %
    - Torpedo bulkhead: 712 tons, 2.7 %
    - Armament: 2,433 tons, 9.2 %
    - Armour Deck: 2,367 tons, 8.9 %
    - Conning Tower: 262 tons, 1.0 %
 Machinery: 3,280 tons, 12.4 %
 Hull, fittings & equipment: 9,598 tons, 36.2 %
 Fuel, ammunition & stores: 3,495 tons, 13.2 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   46,879 lbs / 21,264 Kg = 54.3 x 12.0 " / 305 mm shells or 7.4 torpedoes
 Stability (Unstable if below 1.00): 1.12
 Metacentric height 5.1 ft / 1.5 m
 Roll period: 16.4 seconds
 Steadiness - As gun platform (Average = 50 %): 87 %
   - Recoil effect (Restricted arc if above 1.00): 0.57
 Seaboat quality  (Average = 1.00): 1.73

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.576
 Length to Beam Ratio: 7.75 : 1
 'Natural speed' for length: 26.08 kts
 Power going to wave formation at top speed: 43 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -2.00 degrees
 Stern overhang: -1.00 ft / -0.30 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  29.00 ft / 8.84 m
    - Forecastle (20 %): 26.00 ft / 7.92 m
    - Mid (65 %):  26.00 ft / 7.92 m (18.00 ft / 5.49 m aft of break)
    - Quarterdeck (15 %): 18.00 ft / 5.49 m
    - Stern:  18.00 ft / 5.49 m
    - Average freeboard: 23.44 ft / 7.14 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 80.5 %
  - Above water (accommodation/working, high = better): 184.2 %
 Waterplane Area: 42,648 Square feet or 3,962 Square metres
 Displacement factor (Displacement / loading): 121 %
 Structure weight / hull surface area: 153 lbs/sq ft or 749 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.97
  - Longitudinal: 1.40
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is excellent
 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