A Ger/CB/1915 design study with 6-16in guns

This is another design study for a German battlecruiser, this time with 6-16in/45 BLR and 12-6in QF guns. The dimensions are 787.5ft x 98ft x 31.4ft. I had to reduce the speed from the planned 36 knots to a more achievable 33 knots. What was interesting about this design study is that I had reasonable specifications and an armour plan, at least for the belt, deck, and anti-torpedo protection. There is also an indication of the armour layout. I kept the citadel length to what was shown in the drawing. This is the Springsharp report:

Ger/CB/1915 Design Study 16in guns, Germany Battlecruiser laid down 1915 (Engine 1917)

Displacement:
 38,354 t light; 39,893 t standard; 42,442 t normal; 44,482 t full load

Dimensions: Length overall / water x beam x draught
 788.65 ft / 787.50 ft x 98.00 ft x 31.40 ft (normal load)
 240.38 m / 240.03 m x 29.87 m  x 9.57 m

Armament:
      6 - 16.00" / 406 mm guns (3x2 guns), 2,048.00lbs / 928.96kg shells, 1915 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, majority forward, 1 raised mount - superfiring
      12 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1915 Model
   Quick firing guns in deck mounts with hoists
   on side, all amidships, 2 raised mounts - superfiring
 Weight of broadside 13,584 lbs / 6,162 kg
 Shells per gun, main battery: 90

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 9.00" / 229 mm 450.00 ft / 137.16 m 9.00 ft / 2.74 m
 Ends: 4.00" / 102 mm 250.00 ft / 76.20 m 16.00 ft / 4.88 m
   87.50 ft / 26.67 m Unarmoured ends
 Upper: 5.00" / 127 mm 450.00 ft / 137.16 m 9.00 ft / 2.74 m
   Main Belt covers 88 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  2.00" / 51 mm 450.00 ft / 137.16 m 28.00 ft / 8.53 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 9.00" / 229 mm 6.00" / 152 mm  9.00" / 229 mm
 2nd: 2.00" / 51 mm       -         -

   - Armour deck: 6.00" / 152 mm, Conning tower: 9.00" / 229 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 225,579 shp / 168,282 Kw = 33.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 4,588 tons

Complement:
 1,478 - 1,922

Cost:
 £5.711 million / $22.844 million

Distribution of weights at normal displacement:
 Armament: 1,698 tons, 4.0 %
 Armour: 12,605 tons, 29.7 %
    - Belts: 3,072 tons, 7.2 %
    - Torpedo bulkhead: 932 tons, 2.2 %
    - Armament: 2,023 tons, 4.8 %
    - Armour Deck: 6,342 tons, 14.9 %
    - Conning Tower: 236 tons, 0.6 %
 Machinery: 8,269 tons, 19.5 %
 Hull, fittings & equipment: 15,782 tons, 37.2 %
 Fuel, ammunition & stores: 4,088 tons, 9.6 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   50,015 lbs / 22,686 Kg = 24.4 x 16.0 " / 406 mm shells or 5.7 torpedoes
 Stability (Unstable if below 1.00): 1.16
 Metacentric height 6.4 ft / 1.9 m
 Roll period: 16.3 seconds
 Steadiness - As gun platform (Average = 50 %): 50 %
   - Recoil effect (Restricted arc if above 1.00): 0.67
 Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.613
 Length to Beam Ratio: 8.04 : 1
 'Natural speed' for length: 28.06 kts
 Power going to wave formation at top speed: 57 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 2.00 degrees
 Stern overhang: -2.00 ft / -0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  33.00 ft / 10.06 m
    - Forecastle (20 %): 29.00 ft / 8.84 m
    - Mid (70 %):  29.00 ft / 8.84 m (21.00 ft / 6.40 m aft of break)
    - Quarterdeck (15 %): 21.00 ft / 6.40 m
    - Stern:  21.00 ft / 6.40 m
    - Average freeboard: 26.92 ft / 8.21 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 117.2 %
  - Above water (accommodation/working, high = better): 199.9 %
 Waterplane Area: 57,133 Square feet or 5,308 Square metres
 Displacement factor (Displacement / loading): 99 %
 Structure weight / hull surface area: 187 lbs/sq ft or 914 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.97
  - Longitudinal: 1.35
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent