The large battleship, tweaked

On the next page in the Red Book is a scale pencil drawing (Janes Fighting Ship style), weights, and other specifications. The plan for this design (the Ger/BB/1916) was to build two ships ("AA" and "AB") between August 1915 and December 1917. How such large ships would be built quickly is hard to say. The drawing gives the citadel length, so I adjusted that, increased the height of the torpedo bulkhead, which had been too short. I did not want to lower the range to the point that the oil fuel would be only 5,000 tons. Even at 6,000nm, SPringsharp requires more fuel than that. This is the revised Springsharp report:

      10 - 21.00" / 533 mm guns (4 mounts), 4,630.50lbs / 2,100.36kg shells, 1916 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread, 2 raised mounts - superfiring
      24 - 5.00" / 127 mm guns (12x2 guns), 62.50lbs / 28.35kg shells, 1916 Model
   Quick firing guns in turrets (on barbettes)
   on side, all amidships, 4 raised mounts - superfiring
 Weight of broadside 47,805 lbs / 21,684 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 18.0" / 457 mm 505.00 ft / 153.92 m 9.00 ft / 2.74 m
 Ends: Unarmoured
 Upper: 16.0" / 406 mm 505.00 ft / 153.92 m 8.00 ft / 2.44 m
   Main Belt covers 86 % of normal length

   - Torpedo Bulkhead:
  8.00" / 203 mm 505.00 ft / 153.92 m 35.00 ft / 10.67 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 12.0" / 305 mm 8.00" / 203 mm  16.0" / 406 mm
 2nd: 4.00" / 102 mm 4.00" / 102 mm  4.00" / 102 mm

   - Armour deck: 8.00" / 203 mm, Conning tower: 18.00" / 457 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 84,849 shp / 63,298 Kw = 22.70 kts
 Range 6,000nm at 15.00 kts
 Bunker at max displacement = 6,162 tons

Complement:
 2,562 - 3,332

Cost:
 £13.507 million / $54.026 million

Distribution of weights at normal displacement:
 Armament: 5,976 tons, 6.8 %
 Armour: 36,162 tons, 40.9 %
    - Belts: 6,724 tons, 7.6 %
    - Torpedo bulkhead: 5,232 tons, 5.9 %
    - Armament: 8,243 tons, 9.3 %
    - Armour Deck: 15,193 tons, 17.2 %
    - Conning Tower: 770 tons, 0.9 %
 Machinery: 2,836 tons, 3.2 %
 Hull, fittings & equipment: 36,097 tons, 40.8 %
 Fuel, ammunition & stores: 7,329 tons, 8.3 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   143,423 lbs / 65,056 Kg = 31.0 x 21.0 " / 533 mm shells or 35.0 torpedoes
 Stability (Unstable if below 1.00): 1.16
 Metacentric height 12.1 ft / 3.7 m
 Roll period: 18.1 seconds
 Steadiness - As gun platform (Average = 50 %): 67 %
   - Recoil effect (Restricted arc if above 1.00): 0.55
 Seaboat quality  (Average = 1.00): 1.34

Hull form characteristics:
 Hull has low forecastle
 Block coefficient: 0.642
 Length to Beam Ratio: 6.00 : 1
 'Natural speed' for length: 30.00 kts
 Power going to wave formation at top speed: 38 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 5.00 degrees
 Stern overhang: 3.00 ft / 0.91 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  32.00 ft / 9.75 m
    - Forecastle (20 %): 25.00 ft / 7.62 m (27.00 ft / 8.23 m aft of break)
    - Mid (50 %):  25.00 ft / 7.62 m
    - Quarterdeck (15 %): 25.00 ft / 7.62 m
    - Stern:  25.00 ft / 7.62 m
    - Average freeboard: 25.86 ft / 7.88 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 70.3 %
  - Above water (accommodation/working, high = better): 194.3 %
 Waterplane Area: 102,658 Square feet or 9,537 Square metres
 Displacement factor (Displacement / loading): 99 %
 Structure weight / hull surface area: 278 lbs/sq ft or 1,359 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.97
  - Longitudinal: 1.27
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is excellent
 Room for accommodation and workspaces is excellent
 Good seaboat, rides out heavy weather easily