"New Age" design for the Ger/CB/1905 battlecruiser

This is based on my 18 July 1973 drawing and design for the Ger/CB/1905. I wanted to keep to the specifications contained there and only extrapolate as needed. I had looked at higher speeds, up to 32 and 33 knots. The basic characteristics remained the same. I had to up the machinery year to achieve the weights originally specified:

Hull:        8,070 tons
Machinery:   3,000 tons
Protection:  5,895 tons
Armament:      515 tons
Misc:        1,520 tons
Oil Fuel:    3,500 tons

Total:      21,500 tons full load

This is the Springsharp report:

Ger/CB/1905, Germany Battlecruiser laid down 1905 (Engine 1930)

Displacement:
 16,710 t light; 17,265 t standard; 19,000 t normal; 20,388 t full load

Dimensions: Length overall / water x beam x draught
 700.00 ft / 700.00 ft x 80.00 ft x 24.40 ft (normal load)
 213.36 m / 213.36 m x 24.38 m  x 7.44 m

Armament:
      4 - 12.00" / 305 mm guns (2x2 guns), 864.00lbs / 391.90kg shells, 1905 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread
      12 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1905 Model
   Quick firing guns in casemate mounts 
   on side, all amidships
 Weight of broadside 3,840 lbs / 1,742 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.00" / 102 mm 380.00 ft / 115.82 m 17.00 ft / 5.18 m
 Ends: Unarmoured
   Main Belt covers 84 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  2.00" / 51 mm 380.00 ft / 115.82 m 24.00 ft / 7.32 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 9.00" / 229 mm 7.00" / 178 mm  6.00" / 152 mm
 2nd: 2.00" / 51 mm 2.00" / 51 mm  2.00" / 51 mm

   - Armour deck: 3.00" / 76 mm, Conning tower: 6.00" / 152 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 118,806 shp / 88,629 Kw = 32.00 kts
 Range 6,000nm at 18.00 kts
 Bunker at max displacement = 3,123 tons

Complement:
 808 - 1,051

Cost:
 £1.492 million / $5.968 million

Distribution of weights at normal displacement:
 Armament: 480 tons, 2.5 %
 Armour: 4,663 tons, 24.5 %
    - Belts: 1,124 tons, 5.9 %
    - Torpedo bulkhead: 675 tons, 3.6 %
    - Armament: 726 tons, 3.8 %
    - Armour Deck: 2,046 tons, 10.8 %
    - Conning Tower: 92 tons, 0.5 %
 Machinery: 3,600 tons, 18.9 %
 Hull, fittings & equipment: 7,967 tons, 41.9 %
 Fuel, ammunition & stores: 2,290 tons, 12.1 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   31,989 lbs / 14,510 Kg = 37.0 x 12.0 " / 305 mm shells or 4.4 torpedoes
 Stability (Unstable if below 1.00): 1.22
 Metacentric height 5.1 ft / 1.6 m
 Roll period: 14.8 seconds
 Steadiness - As gun platform (Average = 50 %): 73 %
   - Recoil effect (Restricted arc if above 1.00): 0.43
 Seaboat quality  (Average = 1.00): 1.46

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.487
 Length to Beam Ratio: 8.75 : 1
 'Natural speed' for length: 26.46 kts
 Power going to wave formation at top speed: 53 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -2.00 degrees
 Stern overhang: -1.00 ft / -0.30 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 (64 %):  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: 26.44 ft / 8.06 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 107.7 %
  - Above water (accommodation/working, high = better): 229.6 %
 Waterplane Area: 36,866 Square feet or 3,425 Square metres
 Displacement factor (Displacement / loading): 121 %
 Structure weight / hull surface area: 137 lbs/sq ft or 669 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.95
  - Longitudinal: 1.67
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent
 Ship has slow, easy roll, a good, steady gun platform
 Good seaboat, rides out heavy weather easily