The very fast version of the GB/CB/1910 design

The GB/CB/1910 design is an updated version of the GB/CB/1905 and 1907 designs with thicker belt (8in) and 13.5in/45 guns. The secondary battery is too light with only 8-4in QF guns in twin mounts with shields. The length is slightly longer at 775ft. The displacement ballooned to 33,000 tons. By using lightweight machinery, the speed was still good for 36.5 knots. The 1973 version had hoped to make 44.3 knots with 300,000 SHP. That much power would need 6 shafts, due to the 75,000 SHP per shaft physical limit. This is the Springsharp report:

GB/CB/1910 Very Fast, Great Britain Battlecruiser laid down 1910 (Engine 1931)

Displacement:
 29,503 t light; 30,396 t standard; 33,000 t normal; 35,083 t full load

Dimensions: Length overall / water x beam x draught
 775.00 ft / 775.00 ft x 92.00 ft x 29.00 ft (normal load)
 236.22 m / 236.22 m x 28.04 m  x 8.84 m

Armament:
      4 - 13.50" / 343 mm guns (2x2 guns), 1,230.19lbs / 558.00kg shells, 1910 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread
      8 - 4.00" / 102 mm guns (4x2 guns), 32.00lbs / 14.51kg shells, 1910 Model
   Quick firing guns in deck mounts with hoists
   on side ends, evenly spread, 2 raised mounts - superfiring
 Weight of broadside 5,177 lbs / 2,348 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 8.00" / 203 mm 600.00 ft / 182.88 m 17.00 ft / 5.18 m
 Ends: Unarmoured
   Main Belt covers 119 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.50" / 38 mm 600.00 ft / 182.88 m 26.00 ft / 7.92 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 10.0" / 254 mm 6.00" / 152 mm  10.0" / 254 mm
 2nd: 2.00" / 51 mm 2.00" / 51 mm  2.00" / 51 mm

   - Armour deck: 3.00" / 76 mm, Conning tower: 8.00" / 203 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 284,675 shp / 212,367 Kw = 36.50 kts
 Range 8,500nm at 16.00 kts
 Bunker at max displacement = 4,687 tons

Complement:
 1,223 - 1,591

Cost:
 £2.768 million / $11.072 million

Distribution of weights at normal displacement:
 Armament: 647 tons, 2.0 %
 Armour: 8,323 tons, 25.2 %
    - Belts: 3,357 tons, 10.2 %
    - Torpedo bulkhead: 866 tons, 2.6 %
    - Armament: 1,139 tons, 3.5 %
    - Armour Deck: 2,784 tons, 8.4 %
    - Conning Tower: 177 tons, 0.5 %
 Machinery: 8,513 tons, 25.8 %
 Hull, fittings & equipment: 12,020 tons, 36.4 %
 Fuel, ammunition & stores: 3,497 tons, 10.6 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   42,585 lbs / 19,316 Kg = 34.6 x 13.5 " / 343 mm shells or 4.7 torpedoes
 Stability (Unstable if below 1.00): 1.28
 Metacentric height 6.9 ft / 2.1 m
 Roll period: 14.7 seconds
 Steadiness - As gun platform (Average = 50 %): 51 %
   - Recoil effect (Restricted arc if above 1.00): 0.30
 Seaboat quality  (Average = 1.00): 1.03

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.559
 Length to Beam Ratio: 8.42 : 1
 'Natural speed' for length: 27.84 kts
 Power going to wave formation at top speed: 61 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -1.00 degrees
 Stern overhang: -2.00 ft / -0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  34.00 ft / 10.36 m
    - Forecastle (20 %): 31.00 ft / 9.45 m
    - Mid (67 %):  31.00 ft / 9.45 m (23.00 ft / 7.01 m aft of break)
    - Quarterdeck (15 %): 23.00 ft / 7.01 m
    - Stern:  23.00 ft / 7.01 m
    - Average freeboard: 28.60 ft / 8.72 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 125.9 %
  - Above water (accommodation/working, high = better): 224.9 %
 Waterplane Area: 50,162 Square feet or 4,660 Square metres
 Displacement factor (Displacement / loading): 108 %
 Structure weight / hull surface area: 156 lbs/sq ft or 762 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.96
  - Longitudinal: 1.50
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent