A Vanguard-like ship, the GB/BB/1923

This is out of place in time, but the GB/BB/1923 was intended to be a Vanguard-like ship. I am just guessing about the designation, as there is not one included on the page. The page does have a complete weight breakdown and specifies 40 SHP/ton machinery. The specified power was 137,000 SHP, although this was expected to deliver 32 knots, it is only good for 30 knots. The armament is 8-15 BLR and 16-5in QF guns. Typical of this design series, there is no AA armament. The ship ended up with a greater displacement, necessary to achieve adequate strength. This was the original weight specification:

Aux. Mach.=  1,600 tons
Hull      = 11,750 tons
Machinery =  3,430 tons
Armament  =  2,280 tons
Protection= 19,120 tons
Misc.     =  3,320 tons

I greatly underestimated the needed hull strength, according to Springsharp. As my original Standard displacement was 43,000 tons, I was not so far off as I had expected. This is the Springsharp report:

GB/BB/1923, Great Britain Battleship laid down 1923 (Engine 1941)

Displacement:
 42,606 t light; 44,265 t standard; 46,200 t normal; 47,748 t full load

Dimensions: Length overall / water x beam x draught
 802.80 ft / 800.00 ft x 108.00 ft x 32.00 ft (normal load)
 244.69 m / 243.84 m x 32.92 m  x 9.75 m

Armament:
      8 - 15.00" / 381 mm guns (4x2 guns), 1,687.50lbs / 765.44kg shells, 1923 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread, 2 raised mounts - superfiring
      16 - 5.00" / 127 mm guns (8x2 guns), 62.50lbs / 28.35kg shells, 1923 Model
   Quick firing guns in turrets (on barbettes)
   on centreline, all amidships, 4 raised mounts - superfiring
 Weight of broadside 14,500 lbs / 6,577 kg
 Shells per gun, main battery: 90

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 14.0" / 356 mm 470.00 ft / 143.26 m 17.00 ft / 5.18 m
 Ends: 6.00" / 152 mm 240.00 ft / 73.15 m 17.00 ft / 5.18 m
   90.00 ft / 27.43 m Unarmoured ends
   Main Belt covers 90 % of normal length

   - Torpedo Bulkhead:
  5.00" / 127 mm 470.00 ft / 143.26 m 31.00 ft / 9.45 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 14.0" / 356 mm 9.00" / 229 mm  14.0" / 356 mm
 2nd: 5.00" / 127 mm 5.00" / 127 mm  5.00" / 127 mm

   - Armour deck: 6.00" / 152 mm, Conning tower: 14.00" / 356 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 139,942 shp / 104,397 Kw = 30.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 3,483 tons

Complement:
 1,575 - 2,048

Cost:
 £10.273 million / $41.093 million

Distribution of weights at normal displacement:
 Armament: 1,813 tons, 3.9 %
 Armour: 20,187 tons, 43.7 %
    - Belts: 5,820 tons, 12.6 %
    - Torpedo bulkhead: 2,695 tons, 5.8 %
    - Armament: 4,078 tons, 8.8 %
    - Armour Deck: 7,205 tons, 15.6 %
    - Conning Tower: 388 tons, 0.8 %
 Machinery: 3,698 tons, 8.0 %
 Hull, fittings & equipment: 16,908 tons, 36.6 %
 Fuel, ammunition & stores: 3,594 tons, 7.8 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   81,600 lbs / 37,013 Kg = 48.4 x 15.0 " / 381 mm shells or 16.7 torpedoes
 Stability (Unstable if below 1.00): 1.11
 Metacentric height 6.8 ft / 2.1 m
 Roll period: 17.4 seconds
 Steadiness - As gun platform (Average = 50 %): 53 %
   - Recoil effect (Restricted arc if above 1.00): 0.47
 Seaboat quality  (Average = 1.00): 1.06

Hull form characteristics:
 Hull has a flush deck
   and transom stern
 Block coefficient: 0.585
 Length to Beam Ratio: 7.41 : 1
 'Natural speed' for length: 32.76 kts
 Power going to wave formation at top speed: 52 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 5.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  32.00 ft / 9.75 m
    - Forecastle (20 %): 22.00 ft / 6.71 m
    - Mid (50 %):  22.00 ft / 6.71 m
    - Quarterdeck (15 %): 22.00 ft / 6.71 m
    - Stern:  22.00 ft / 6.71 m
    - Average freeboard: 22.80 ft / 6.95 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 68.8 %
  - Above water (accommodation/working, high = better): 172.7 %
 Waterplane Area: 64,911 Square feet or 6,030 Square metres
 Displacement factor (Displacement / loading): 110 %
 Structure weight / hull surface area: 194 lbs/sq ft or 946 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.99
  - Longitudinal: 1.13
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is excellent
 Room for accommodation and workspaces is excellent