The extreme version of the GB/CB/1907 class

The GB/CB/1907 class were larger and carried 12in/50 guns instead of the 12in/45 guns carried by the GB/CB/1905 class. They also could carry increased armour, do to their greater displacement (27,500 tons). This is the Springsharp report:

GB/CB/1907 Extreme version, Enter country Enter ship type laid down 1907 (Engine 1925)

Displacement:
 24,274 t light; 25,028 t standard; 27,500 t normal; 29,478 t full load

Dimensions: Length overall / water x beam x draught
 770.00 ft / 770.00 ft x 80.00 ft x 28.00 ft (normal load)
 234.70 m / 234.70 m x 24.38 m  x 8.53 m

Armament:
      4 - 12.00" / 305 mm guns (2x2 guns), 864.00lbs / 391.90kg shells, 1907 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread
      9 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1907 Model
   Quick firing guns in deck mounts with hoists
   on side, all amidships
 Weight of broadside 4,428 lbs / 2,009 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 6.00" / 152 mm 690.00 ft / 210.31 m 9.00 ft / 2.74 m
 Ends: Unarmoured
 Upper: 6.00" / 152 mm 400.00 ft / 121.92 m 8.00 ft / 2.44 m
   Main Belt covers 138 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.50" / 38 mm 690.00 ft / 210.31 m 26.00 ft / 7.92 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 8.00" / 203 mm 4.00" / 102 mm  7.00" / 178 mm
 2nd: 2.00" / 51 mm       -         -

   - Armour deck: 2.00" / 51 mm, Conning tower: 8.00" / 203 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 235,359 shp / 175,578 Kw = 36.00 kts
 Range 6,500nm at 18.00 kts
 Bunker at max displacement = 4,450 tons

Complement:
 1,067 - 1,388

Cost:
 £2.384 million / $9.537 million

Distribution of weights at normal displacement:
 Armament: 554 tons, 2.0 %
 Armour: 5,807 tons, 21.1 %
    - Belts: 2,317 tons, 8.4 %
    - Torpedo bulkhead: 996 tons, 3.6 %
    - Armament: 734 tons, 2.7 %
    - Armour Deck: 1,603 tons, 5.8 %
    - Conning Tower: 157 tons, 0.6 %
 Machinery: 7,642 tons, 27.8 %
 Hull, fittings & equipment: 10,272 tons, 37.4 %
 Fuel, ammunition & stores: 3,226 tons, 11.7 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   31,798 lbs / 14,423 Kg = 36.8 x 12.0 " / 305 mm shells or 3.5 torpedoes
 Stability (Unstable if below 1.00): 1.21
 Metacentric height 5.1 ft / 1.6 m
 Roll period: 14.9 seconds
 Steadiness - As gun platform (Average = 50 %): 63 %
   - Recoil effect (Restricted arc if above 1.00): 0.48
 Seaboat quality  (Average = 1.00): 1.26

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.558
 Length to Beam Ratio: 9.63 : 1
 'Natural speed' for length: 27.75 kts
 Power going to wave formation at top speed: 58 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -1.00 degrees
 Stern overhang: -1.00 ft / -0.30 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 (73 %):  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: 29.08 ft / 8.86 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 140.4 %
  - Above water (accommodation/working, high = better): 228.3 %
 Waterplane Area: 43,315 Square feet or 4,024 Square metres
 Displacement factor (Displacement / loading): 108 %
 Structure weight / hull surface area: 141 lbs/sq ft or 688 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.94
  - Longitudinal: 1.69
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent
 Good seaboat, rides out heavy weather easily