Another try at the Ger/CB/1906 battlecruiser design

I just tried the Ger/CB/1906 battlecruiser design in SpringSharp. The ship is 800ft x 85ft x 26ft and the displacement rose from 25,000 tons to a much larger 27,050 tons. That was necessitated by structural strength demands. The armament is 8-12in/45 BLR and 8-6in/50 QF guns. The armour basis is 4in, but the deck armour is a substantial 3in. I did use higher output machinery than we might have used previously. The original design, however, was for at least 25 SHP/ton of machinery. That was for a 25,000 ton ship. This design uses 31.7 SHP/ton. This is the SpringSharp report:

Ger/CB/1906, Germany Battlecruiser laid down 1906 (Engine 1927)

Displacement:
 24,514 t light; 25,407 t standard; 27,050 t normal; 28,364 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, 1906 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread, 2 raised mounts - superfiring
      8 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1906 Model
   Quick firing guns in deck mounts with hoists
   on side ends, evenly spread
 Weight of broadside 7,776 lbs / 3,527 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.00" / 102 mm 610.00 ft / 185.93 m 16.00 ft / 4.88 m
 Ends: Unarmoured
   Main Belt covers 117 % of normal length

   - Torpedo Bulkhead:
  1.50" / 38 mm 610.00 ft / 185.93 m 24.00 ft / 7.32 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 8.00" / 203 mm 5.00" / 127 mm  6.00" / 152 mm
 2nd: 2.00" / 51 mm       -         -

   - Armour deck: 3.00" / 76 mm, Conning tower: 8.00" / 203 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 160,914 shp / 120,042 Kw = 33.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 2,957 tons

Complement:
 1,054 - 1,371

Cost:
 £2.386 million / $9.542 million

Distribution of weights at normal displacement:
 Armament: 972 tons, 3.6 %
 Armour: 6,568 tons, 24.3 %
    - Belts: 1,596 tons, 5.9 %
    - Torpedo bulkhead: 813 tons, 3.0 %
    - Armament: 1,406 tons, 5.2 %
    - Armour Deck: 2,598 tons, 9.6 %
    - Conning Tower: 155 tons, 0.6 %
 Machinery: 5,079 tons, 18.8 %
 Hull, fittings & equipment: 11,894 tons, 44.0 %
 Fuel, ammunition & stores: 2,536 tons, 9.4 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   38,765 lbs / 17,584 Kg = 44.9 x 12.0 " / 305 mm shells or 4.7 torpedoes
 Stability (Unstable if below 1.00): 1.10
 Metacentric height 4.7 ft / 1.4 m
 Roll period: 16.4 seconds
 Steadiness - As gun platform (Average = 50 %): 67 %
   - Recoil effect (Restricted arc if above 1.00): 0.87
 Seaboat quality  (Average = 1.00): 1.34

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.535
 Length to Beam Ratio: 9.41 : 1
 'Natural speed' for length: 28.28 kts
 Power going to wave formation at top speed: 52 %
 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 %): 30.00 ft / 9.14 m
    - Mid (71 %):  30.00 ft / 9.14 m (22.00 ft / 6.71 m aft of break)
    - Quarterdeck (15 %): 22.00 ft / 6.71 m
    - Stern:  22.00 ft / 6.71 m
    - Average freeboard: 27.92 ft / 8.51 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 115.0 %
  - Above water (accommodation/working, high = better): 239.2 %
 Waterplane Area: 46,817 Square feet or 4,349 Square metres
 Displacement factor (Displacement / loading): 110 %
 Structure weight / hull surface area: 163 lbs/sq ft or 797 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
 Good seaboat, rides out heavy weather easily