Another try at the Ger/BB/1916 battleship with 10-21in guns

The next design to try in Springsharp again is the Ger/BB/1916 battleship. This was an attempt to put 10-21 guns on an 80,000 ton ship with a speed of 20 knots. Springsharp demanded a greater displacement to have adequate strength, so the ship became fuller on the same dimensions. This is the Springsharp report:

Ger/BB/1916, Germany Battleship laid down 1916

Displacement:
 85,327 t light; 89,529 t standard; 95,000 t normal; 99,377 t full load

Dimensions: Length overall / water x beam x draught
 903.68 ft / 900.00 ft x 150.00 ft x 35.70 ft (normal load)
 275.44 m / 274.32 m x 45.72 m  x 10.88 m

Armament:
      10 - 21.00" / 533 mm guns (4 mounts), 5,000.00lbs / 2,267.96kg 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 51,500 lbs / 23,360 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 18.0" / 457 mm 670.00 ft / 204.22 m 9.00 ft / 2.74 m
 Ends: Unarmoured
 Upper: 12.0" / 305 mm 670.00 ft / 204.22 m 8.00 ft / 2.44 m
   Main Belt covers 115 % of normal length

   - Torpedo Bulkhead:
  3.00" / 76 mm 670.00 ft / 204.22 m 33.00 ft / 10.06 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 20.0" / 508 mm 11.0" / 279 mm  18.0" / 457 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, 94,533 shp / 70,522 Kw = 23.00 kts
 Range 8,000nm at 15.00 kts
 Bunker at max displacement = 9,848 tons

Complement:
 2,705 - 3,517

Cost:
 £13.908 million / $55.630 million

Distribution of weights at normal displacement:
 Armament: 5,976 tons, 6.3 %
 Armour: 36,958 tons, 38.9 %
    - Belts: 7,403 tons, 7.8 %
    - Torpedo bulkhead: 2,454 tons, 2.6 %
    - Armament: 10,423 tons, 11.0 %
    - Armour Deck: 15,870 tons, 16.7 %
    - Conning Tower: 807 tons, 0.8 %
 Machinery: 3,522 tons, 3.7 %
 Hull, fittings & equipment: 38,871 tons, 40.9 %
 Fuel, ammunition & stores: 9,673 tons, 10.2 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   161,058 lbs / 73,055 Kg = 34.8 x 21.0 " / 533 mm shells or 32.7 torpedoes
 Stability (Unstable if below 1.00): 1.13
 Metacentric height 11.5 ft / 3.5 m
 Roll period: 18.6 seconds
 Steadiness - As gun platform (Average = 50 %): 72 %
   - Recoil effect (Restricted arc if above 1.00): 0.69
 Seaboat quality  (Average = 1.00): 1.44

Hull form characteristics:
 Hull has a flush deck
 Block coefficient: 0.690
 Length to Beam Ratio: 6.00 : 1
 'Natural speed' for length: 30.00 kts
 Power going to wave formation at top speed: 39 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 3.00 degrees
 Stern overhang: 2.00 ft / 0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  32.00 ft / 9.75 m
    - Forecastle (20 %): 28.00 ft / 8.53 m
    - Mid (50 %):  28.00 ft / 8.53 m
    - Quarterdeck (15 %): 28.00 ft / 8.53 m
    - Stern:  29.00 ft / 8.84 m
    - Average freeboard: 28.40 ft / 8.65 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 68.5 %
  - Above water (accommodation/working, high = better): 211.4 %
 Waterplane Area: 107,232 Square feet or 9,962 Square metres
 Displacement factor (Displacement / loading): 103 %
 Structure weight / hull surface area: 284 lbs/sq ft or 1,389 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.96
  - Longitudinal: 1.36
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is excellent
 Room for accommodation and workspaces is excellent
 Ship has slow, easy roll, a good, steady gun platform
 Good seaboat, rides out heavy weather easily