My latest try at a Ger/CB/1906 design

In 1973, I had fantasized that there was a way to achieve 36 knots with this basic design, but seems extremely unrealistic. If you can handle inclined 4in side armour, this version works pretty well. The maximum speed is 33 knots, which is still extreme for a ship laid in 1906. I don't have a good photograph of one of these ships, at least one that I am happy to use. This is the Springsharp report:

Ger/CB/1906 Modified, Germany Battlecruiser laid down 1906 (Engine 1921)

Displacement:
 27,182 t light; 28,426 t standard; 30,056 t normal; 31,360 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (805.00 ft / 800.00 ft) x 85.00 ft x (26.00 / 26.92 ft)
 (245.36 m / 243.84 m) x 25.91 m  x (7.92 / 8.21 m)

Armament:
      8 - 12.00" / 305 mm 45.0 cal guns - 850.00lbs / 385.55kg shells, 150 per gun
   Breech loading guns in turret on barbette mounts, 1906 Model
   4 x Twin mounts on centreline ends, evenly spread
  2 raised mounts - superfiring
      8 - 6.00" / 152 mm 50.0 cal guns - 114.33lbs / 51.86kg shells, 150 per gun
   Quick firing guns in deck and hoist mounts, 1906 Model
   8 x Single mounts on sides, forward deck aft
      Weight of broadside 7,715 lbs / 3,499 kg

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.00" / 102 mm 450.00 ft / 137.16 m 18.00 ft / 5.49 m
 Ends: Unarmoured
   Main Belt covers 87 % of normal length
   Main belt does not fully cover magazines and engineering spaces
   Main Belt inclined -12.00 degrees (positive = in)

   - Torpedo Bulkhead - Additional damage containing bulkheads:
  1.50" / 38 mm 450.00 ft / 137.16 m 26.00 ft / 7.92 m
 Beam between torpedo bulkheads 56.00 ft / 17.07 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 8.00" / 203 mm 6.00" / 152 mm  8.00" / 203 mm
 2nd: 4.00" / 102 mm 3.00" / 76 mm  4.00" / 102 mm

   - Armoured deck - multiple decks:
 For and Aft decks: 4.00" / 102 mm
 Forecastle: 3.00" / 76 mm  Quarter deck: 5.00" / 127 mm

   - Conning towers: Forward 8.00" / 203 mm, Aft 0.00" / 0 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 176,210 shp / 131,453 Kw = 33.00 kts
 Range 5,600nm at 15.00 kts
 Bunker at max displacement = 2,934 tons

Complement:
 1,140 - 1,483

Cost:
 £2.548 million / $10.190 million

Distribution of weights at normal displacement:
 Armament: 1,509 tons, 5.0 %
    - Guns: 1,509 tons, 5.0 %
 Armour: 7,836 tons, 26.1 %
    - Belts: 1,380 tons, 4.6 %
    - Torpedo bulkhead: 649 tons, 2.2 %
    - Armament: 1,897 tons, 6.3 %
    - Armour Deck: 3,743 tons, 12.5 %
    - Conning Tower: 167 tons, 0.6 %
 Machinery: 6,068 tons, 20.2 %
 Hull, fittings & equipment: 11,769 tons, 39.2 %
 Fuel, ammunition & stores: 2,874 tons, 9.6 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   42,283 lbs / 19,179 Kg = 48.9 x 12.0 " / 305 mm shells or 4.8 torpedoes
 Stability (Unstable if below 1.00): 1.08
 Metacentric height 4.5 ft / 1.4 m
 Roll period: 16.8 seconds
 Steadiness - As gun platform (Average = 50 %): 62 %
   - Recoil effect (Restricted arc if above 1.00): 0.85
 Seaboat quality  (Average = 1.00): 1.24

Hull form characteristics:
 Hull has low quarterdeck ,
   a ram bow and a cruiser stern
 Block coefficient (normal/deep): 0.595 / 0.600
 Length to Beam Ratio: 9.41 : 1
 'Natural speed' for length: 28.28 kts
 Power going to wave formation at top speed: 54 %
 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 (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 28.00 %,  33.00 ft / 10.06 m,  30.00 ft / 9.14 m
    - Forward deck: 30.00 %,  30.00 ft / 9.14 m,  30.00 ft / 9.14 m
    - Aft deck: 15.00 %,  30.00 ft / 9.14 m,  30.00 ft / 9.14 m
    - Quarter deck: 27.00 %,  22.00 ft / 6.71 m,  24.00 ft / 7.32 m
    - Average freeboard:  28.45 ft / 8.67 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 135.0 %
  - Above water (accommodation/working, high = better): 248.1 %
 Waterplane Area: 49,502 Square feet or 4,599 Square metres
 Displacement factor (Displacement / loading): 111 %
 Structure weight / hull surface area: 162 lbs/sq ft or 792 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.98
  - Longitudinal: 1.25
  - Overall: 1.00
 Cramped machinery, storage, compartmentation space
 Excellent accommodation and workspace room
 Good seaboat, rides out heavy weather easily

Another try at a Ger/BB/1905 design

This is my latest attempt at my 1971 design for a German battleship laid down in 1905: the Ger/BB/1905 design. This was a ship with 8-12in/45 BLR and 12-4in QF guns with a speed of 23 knots. I had figured that I could sacrifice gunpower to reach a higher speed. We agreed at the time to use only oil fuel, even though that was anachronistic. This is the Springsharp report:

GB/BB/1905, Germany Battleship laid down 1905

Displacement:
 21,024 t light; 21,896 t standard; 24,557 t normal; 26,686 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (586.00 ft / 580.00 ft) x 90.00 ft x (26.60 / 28.52 ft)
 (178.61 m / 176.78 m) x 27.43 m  x (8.11 / 8.69 m)

Armament:
      8 - 12.00" / 305 mm 45.0 cal guns - 870.00lbs / 394.63kg shells, 90 per gun
   Breech loading guns in turret on barbette mounts, 1905 Model
   4 x Twin mounts on centreline ends, evenly spread
  2 raised mounts - superfiring
      12 - 4.00" / 102 mm 45.0 cal guns - 32.27lbs / 14.64kg shells, 150 per gun
   Quick firing guns in casemate mounts, 1905 Model
   12 x Single mounts on sides, evenly spread
      Weight of broadside 7,347 lbs / 3,333 kg

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 11.0" / 279 mm 310.00 ft / 94.49 m 8.00 ft / 2.44 m
 Ends: 4.00" / 102 mm 120.00 ft / 36.58 m 8.00 ft / 2.44 m
   150.00 ft / 45.72 m Unarmoured ends
 Upper: 9.00" / 229 mm 310.00 ft / 94.49 m 8.00 ft / 2.44 m
   Main Belt covers 82 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead - Additional damage containing bulkheads:
  2.00" / 51 mm 310.00 ft / 94.49 m 26.60 ft / 8.11 m
 Beam between torpedo bulkheads 67.00 ft / 20.42 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 11.0" / 279 mm 9.00" / 229 mm  11.0" / 279 mm
 2nd: 4.00" / 102 mm 4.00" / 102 mm  4.00" / 102 mm

   - Armoured deck - multiple decks:
 For and Aft decks: 3.00" / 76 mm
 Forecastle: 3.00" / 76 mm  Quarter deck: 3.00" / 76 mm

   - Conning towers: Forward 11.00" / 279 mm, Aft 8.00" / 203 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 44,389 shp / 33,114 Kw = 23.00 kts
 Range 5,400nm at 15.00 kts
 Bunker at max displacement = 4,790 tons

Complement:
 980 - 1,275

Cost:
 £1.876 million / $7.504 million

Distribution of weights at normal displacement:
 Armament: 1,308 tons, 5.3 %
    - Guns: 1,308 tons, 5.3 %
 Armour: 7,835 tons, 31.9 %
    - Belts: 2,406 tons, 9.8 %
    - Torpedo bulkhead: 610 tons, 2.5 %
    - Armament: 2,302 tons, 9.4 %
    - Armour Deck: 2,170 tons, 8.8 %
    - Conning Towers: 346 tons, 1.4 %
 Machinery: 3,363 tons, 13.7 %
 Hull, fittings & equipment: 8,518 tons, 34.7 %
 Fuel, ammunition & stores: 3,533 tons, 14.4 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   41,639 lbs / 18,887 Kg = 48.2 x 12.0 " / 305 mm shells or 6.3 torpedoes
 Stability (Unstable if below 1.00): 1.18
 Metacentric height 5.8 ft / 1.8 m
 Roll period: 15.7 seconds
 Steadiness - As gun platform (Average = 50 %): 82 %
   - Recoil effect (Restricted arc if above 1.00): 0.68
 Seaboat quality  (Average = 1.00): 1.64

Hull form characteristics:
 Hull has low quarterdeck ,
   a ram bow and a cruiser stern
 Block coefficient (normal/deep): 0.619 / 0.627
 Length to Beam Ratio: 6.44 : 1
 'Natural speed' for length: 24.08 kts
 Power going to wave formation at top speed: 49 %
 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 (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 25.00 %,  27.00 ft / 8.23 m,  26.00 ft / 7.92 m
    - Forward deck: 30.00 %,  26.00 ft / 7.92 m,  26.00 ft / 7.92 m
    - Aft deck: 14.00 %,  26.00 ft / 7.92 m,  26.00 ft / 7.92 m
    - Quarter deck: 31.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
    - Average freeboard:  23.62 ft / 7.20 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 93.5 %
  - Above water (accommodation/working, high = better): 196.4 %
 Waterplane Area: 38,860 Square feet or 3,610 Square metres
 Displacement factor (Displacement / loading): 117 %
 Structure weight / hull surface area: 162 lbs/sq ft or 791 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.94
  - Longitudinal: 1.80
  - Overall: 1.00
 Adequate machinery, storage, compartmentation space
 Excellent accommodation and workspace room
 Ship has slow, easy roll, a good, steady gun platform
 Excellent seaboat, comfortable, can fire her guns in the heaviest weather