The original concept for the Ger/CB/1905 battlecruisers

I am pleasantly surprised just how viable the original concept is for the Ger/CB/1905 battlecruisers. They were nominally 33 knot ships with 8-12in guns and a 4in armour basis. This is the photo of one of the ships, as originally conceived:

This is the Springsharp report:

Ger/CB/1906 Original Concept, Germany Battlecruiser laid down 1905 (Engine 1921)

Displacement:
 24,632 t light; 25,547 t standard; 27,300 t normal; 28,702 t full load

Dimensions: Length overall / water x beam x draught
 800.00 ft / 800.00 ft x 85.00 ft x 26.00 ft (normal load)
 243.84 m / 243.84 m x 25.91 m  x 7.92 m

Armament:
      8 - 12.00" / 305 mm guns (4x2 guns), 864.00lbs / 391.90kg shells, 1905 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread, 2 raised mounts - superfiring
      12 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1905 Model
   Quick firing guns in deck mounts with hoists
   on side, all amidships
 Weight of broadside 7,296 lbs / 3,309 kg
 Shells per gun, main battery: 90

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.00" / 102 mm 425.00 ft / 129.54 m 16.00 ft / 4.88 m
 Ends: Unarmoured
   Main Belt covers 82 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.50" / 38 mm 425.00 ft / 129.54 m 25.00 ft / 7.62 m

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

   - Armour deck: 3.00" / 76 mm, Conning tower: 4.00" / 102 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 182,631 shp / 136,243 Kw = 34.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 3,155 tons

Complement:
 1,061 - 1,380

Cost:
 £2.509 million / $10.035 million

Distribution of weights at normal displacement:
 Armament: 912 tons, 3.3 %
 Armour: 5,801 tons, 21.2 %
    - Belts: 1,180 tons, 4.3 %
    - Torpedo bulkhead: 590 tons, 2.2 %
    - Armament: 1,343 tons, 4.9 %
    - Armour Deck: 2,610 tons, 9.6 %
    - Conning Tower: 78 tons, 0.3 %
 Machinery: 6,289 tons, 23.0 %
 Hull, fittings & equipment: 11,630 tons, 42.6 %
 Fuel, ammunition & stores: 2,668 tons, 9.8 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   34,142 lbs / 15,486 Kg = 39.5 x 12.0 " / 305 mm shells or 3.8 torpedoes
 Stability (Unstable if below 1.00): 1.15
 Metacentric height 5.1 ft / 1.5 m
 Roll period: 15.8 seconds
 Steadiness - As gun platform (Average = 50 %): 60 %
   - Recoil effect (Restricted arc if above 1.00): 0.72
 Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.540
 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): -2.00 degrees
 Stern overhang: -2.00 ft / -0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  36.00 ft / 10.97 m
    - Forecastle (20 %): 29.00 ft / 8.84 m
    - Mid (69 %):  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: 27.08 ft / 8.25 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 130.6 %
  - Above water (accommodation/working, high = better): 228.2 %
 Waterplane Area: 47,034 Square feet or 4,370 Square metres
 Displacement factor (Displacement / loading): 106 %
 Structure weight / hull surface area: 160 lbs/sq ft or 783 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.98
  - Longitudinal: 1.25
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent
 Good seaboat, rides out heavy weather easily