The Ger/BB/1915 CDV Design from the Red Book

The Ger/BB/1915 CDV drawing in the Red Book looks something like a pocket battleship. Of course, the displacement and general capabilities are much greater, although the speed is a modest 23 knots. On the page with the drawing, there are no specifications, but the drawing is to scale (1in = 100ft). The armament is clearly intended to be something like 6-16.5in BLR in triple turrets and 20-5in QF guns in twin turrets. The length is 580ft and the draft is 30ft. The freeboard at the bow is 25ft and the hull is flush-decked with a straight, vertical bow. I had initially gone with 1937 engines, but Springsharp allowed to light of machinery for the power, so I "derated" the machinery to 1923. This is the Springsharp report:

Ger/BB/1915 CDV, Germany Coast Defense Battleship laid down 1915 (Engine 1923)

Displacement:
  28,711 t light; 30,008 t standard; 31,600 t normal; 32,873 t full load

Dimensions: Length overall / water x beam x draught
  580.00 ft / 580.00 ft x 95.00 ft x 30.00 ft (normal load)
  176.78 m / 176.78 m x 28.96 m  x 9.14 m

Armament:
    6 - 16.50" / 419 mm guns (2x3 guns), 2,246.06lbs / 1,018.80kg shells, 1915 Model
    Breech loading guns in turrets (on barbettes)
    on centreline ends, evenly spread
    20 - 5.00" / 127 mm guns (10x2 guns), 62.50lbs / 28.35kg shells, 1915 Model
    Quick firing guns in turrets (on barbettes)
    on side, all amidships, 4 raised mounts - superfiring
  Weight of broadside 14,726 lbs / 6,680 kg
  Shells per gun, main battery: 80

Armour:
 - Belts:        Width (max)    Length (avg)        Height (avg)
  Main:    14.0" / 356 mm    305.00 ft / 92.96 m    17.00 ft / 5.18 m
  Ends:    6.00" / 152 mm    275.00 ft / 83.82 m    17.00 ft / 5.18 m
    Main Belt covers 81 % of normal length

 - Torpedo Bulkhead:
      6.00" / 152 mm    305.00 ft / 92.96 m    29.00 ft / 8.84 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, 52,929 shp / 39,485 Kw = 23.00 kts
  Range 5,400nm at 15.00 kts
  Bunker at max displacement = 2,865 tons

Complement:
  1,184 - 1,540

Cost:
  £4.071 million / $16.284 million

Distribution of weights at normal displacement:
  Armament: 1,841 tons, 5.8 %
  Armour: 14,130 tons, 44.7 %
     - Belts: 4,421 tons, 14.0 %
     - Torpedo bulkhead: 1,964 tons, 6.2 %
     - Armament: 2,676 tons, 8.5 %
     - Armour Deck: 4,768 tons, 15.1 %
     - Conning Tower: 301 tons, 1.0 %
  Machinery: 1,769 tons, 5.6 %
  Hull, fittings & equipment: 10,971 tons, 34.7 %
  Fuel, ammunition & stores: 2,889 tons, 9.1 %
  Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
  Survivability (Non-critical penetrating hits needed to sink ship):
    45,911 lbs / 20,825 Kg = 20.4 x 16.5 " / 419 mm shells or 9.1 torpedoes
  Stability (Unstable if below 1.00): 1.12
  Metacentric height 5.7 ft / 1.8 m
  Roll period: 16.6 seconds
  Steadiness    - As gun platform (Average = 50 %): 55 %
          - Recoil effect (Restricted arc if above 1.00): 0.58
  Seaboat quality  (Average = 1.00): 1.10

Hull form characteristics:
  Hull has a flush deck
  Block coefficient: 0.669
  Length to Beam Ratio: 6.11 : 1
  'Natural speed' for length: 24.08 kts
  Power going to wave formation at top speed: 51 %
  Trim (Max stability = 0, Max steadiness = 100): 50
  Bow angle (Positive = bow angles forward): 0.00 degrees
  Stern overhang: 0.00 ft / 0.00 m
  Freeboard (% = measuring location as a percentage of overall length):
     - Stem:        25.00 ft / 7.62 m
     - Forecastle (20 %):    18.00 ft / 5.49 m
     - Mid (50 %):        18.00 ft / 5.49 m
     - Quarterdeck (15 %):    18.00 ft / 5.49 m
     - Stern:        18.00 ft / 5.49 m
     - Average freeboard:    18.56 ft / 5.66 m
  Ship tends to be wet forward

Ship space, strength and comments:
  Space    - Hull below water (magazines/engines, low = better): 78.4 %
      - Above water (accommodation/working, high = better): 124.4 %
  Waterplane Area: 42,951 Square feet or 3,990 Square metres
  Displacement factor (Displacement / loading): 98 %
  Structure weight / hull surface area: 188 lbs/sq ft or 916 Kg/sq metre
  Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.55
      - Overall: 1.00
  Hull space for machinery, storage, compartmentation is excellent
  Room for accommodation and workspaces is excellent