The 15in-gunned version of the German battlecruiser: Ger/CB/1914

I happen to like the flush-decked German battlecruisers, so my Ger/CB/1914 design with 8-15in guns has a flush deck. I raised the freeboard forward so that the Springsharp complaint about being "wet forward" was removed. This design is very similar to the Ger/CB/1912 design from yesterday. The dimensions are larger, the main battery now consists of 8-15in/45 guns, the range is 6,200nm, but the protection is largely unchanged. This is the Springsharp report:

Ger/CB/1914, Germany Battlecruiser laid down 1914

Displacement:
 31,753 t light; 33,294 t standard; 36,691 t normal; 39,409 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (782.00 ft / 780.00 ft) x 98.00 ft x (30.00 / 31.77 ft)
 (238.35 m / 237.74 m) x 29.87 m  x (9.14 / 9.68 m)

Armament:
      8 - 15.00" / 381 mm 45.0 cal guns - 1,700.00lbs / 771.11kg shells, 90 per gun
   Breech loading guns in turret on barbette mounts , 1914 Model
   4 x Single mounts on centreline ends, evenly spread
  2 raised mounts - superfiring
      14 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 150 per gun
   Breech loading guns in casemate mounts , 1914 Model
   14 x Single mounts on sides, forward deck aft
 Weight of broadside 15,125 lbs / 15,125 kg

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 12.0" / 305 mm 520.00 ft / 158.50 m 8.00 ft / 2.44 m
 Ends: 5.00" / 127 mm 260.00 ft / 79.25 m 12.00 ft / 3.66 m
 Upper: 9.00" / 229 mm 520.00 ft / 158.50 m 8.00 ft / 2.44 m
   Main Belt covers 103 % of normal length

   - Torpedo Bulkhead:
  2.00" / 51 mm 520.00 ft / 158.50 m 29.00 ft / 8.84 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 13.0" / 330 mm 9.00" / 229 mm  13.0" / 330 mm
 2nd: 5.00" / 127 mm 3.00" / 76 mm  5.00" / 127 mm

   - Armour deck: 3.00" / 76 mm, Conning tower: 12.00" / 305 mm

Machinery:
 Coal and oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 92,071 shp / 68,685 Kw = 27.00 kts
 Range 6,200nm at 15.00 kts
 Bunker at max displacement = 6,115 tons (100% coal)

Complement:
 1,325 - 1,723

Cost:
 £3.817 million / $15.267 million

Distribution of weights at normal displacement:
 Armament: 2,988 tons, 8.1 %
 Armour: 11,973 tons, 32.6 %
    - Belts: 4,285 tons, 11.7 %
    - Torpedo bulkhead: 1,116 tons, 3.0 %
    - Armament: 3,298 tons, 9.0 %
    - Armour Deck: 2,989 tons, 8.1 %
    - Conning Tower: 285 tons, 0.8 %
 Machinery: 3,901 tons, 10.6 %
 Hull, fittings & equipment: 14,282 tons, 38.9 %
 Fuel, ammunition & stores: 4,938 tons, 13.5 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   54,269 lbs / 24,616 Kg = 32.2 x 15.0 " / 381 mm shells or 8.5 torpedoes
 Stability (Unstable if below 1.00): 1.13
 Metacentric height 6.1 ft / 1.9 m
 Roll period: 16.7 seconds
 Steadiness - As gun platform (Average = 50 %): 68 %
   - Recoil effect (Restricted arc if above 1.00): 0.70
 Seaboat quality  (Average = 1.00): 1.36

Hull form characteristics:
 Hull has a flush deck,
   a normal bow and a cruiser stern
 Block coefficient (normal/deep): 0.560 / 0.568
 Length to Beam Ratio: 7.96 : 1
 'Natural speed' for length: 27.93 kts
 Power going to wave formation at top speed: 45 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 0.00 degrees
 Stern overhang: 2.00 ft / 0.61 m
 Freeboard (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 20.00 %,  31.00 ft / 9.45 m,  24.00 ft / 7.32 m
    - Forward deck: 30.00 %,  24.00 ft / 7.32 m,  22.00 ft / 6.71 m
    - Aft deck: 35.00 %,  22.00 ft / 6.71 m,  18.00 ft / 5.49 m
    - Quarter deck: 15.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
    - Average freeboard:  21.96 ft / 6.69 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 85.5 %
  - Above water (accommodation/working, high = better): 165.5 %
 Waterplane Area: 53,849 Square feet or 5,003 Square metres
 Displacement factor (Displacement / loading): 113 %
 Structure weight / hull surface area: 187 lbs/sq ft or 915 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.99
  - Longitudinal: 1.13
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent
 Good seaboat, rides out heavy weather easily