Another attempt at the Ger/CL/1920 fleet cruiser design

Given that I had just produced the photo of the Ger/CL/1920 fleet cruiser, I thought that I would try my hand at the design in Springsharp. This is what I was able to do. I thought that it was pretty faithful to the original concept:

Ger/CL/1920, Germany Fleet Cruiser laid down 1920 (Engine 1950)

Displacement:
 7,054 t light; 7,270 t standard; 7,550 t normal; 7,774 t full load

Dimensions: Length overall / water x beam x draught
 581.97 ft / 575.00 ft x 52.00 ft x 19.00 ft (normal load)
 177.38 m / 175.26 m x 15.85 m  x 5.79 m

Armament:
      6 - 6.00" / 152 mm guns (3x2 guns), 108.00lbs / 48.99kg shells, 1920 Model
   Quick firing guns in turrets (on barbettes)
   on centreline ends, majority aft, 1 raised mount aft - superfiring
 Weight of broadside 648 lbs / 294 kg
 Shells per gun, main battery: 180
 8 - 23.6" / 600.0001 mm above water torpedoes

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 1.00" / 25 mm 575.00 ft / 175.26 m 8.00 ft / 2.44 m
 Ends: Unarmoured
   Main Belt covers 154 % of normal length

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 2.00" / 51 mm 1.00" / 25 mm  1.00" / 25 mm

   - Armour deck: 1.00" / 25 mm, Conning tower: 2.00" / 51 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 126,116 shp / 94,083 Kw = 37.00 kts
 Range 4,500nm at 12.00 kts
 Bunker at max displacement = 504 tons

Complement:
 404 - 526

Cost:
 £1.743 million / $6.971 million

Distribution of weights at normal displacement:
 Armament: 81 tons, 1.1 %
 Armour: 611 tons, 8.1 %
    - Belts: 170 tons, 2.3 %
    - Torpedo bulkhead: 0 tons, 0.0 %
    - Armament: 67 tons, 0.9 %
    - Armour Deck: 357 tons, 4.7 %
    - Conning Tower: 17 tons, 0.2 %
 Machinery: 3,017 tons, 40.0 %
 Hull, fittings & equipment: 3,346 tons, 44.3 %
 Fuel, ammunition & stores: 496 tons, 6.6 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   5,672 lbs / 2,573 Kg = 52.5 x 6.0 " / 152 mm shells or 0.9 torpedoes
 Stability (Unstable if below 1.00): 1.21
 Metacentric height 2.7 ft / 0.8 m
 Roll period: 13.3 seconds
 Steadiness - As gun platform (Average = 50 %): 58 %
   - Recoil effect (Restricted arc if above 1.00): 0.31
 Seaboat quality  (Average = 1.00): 1.16

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.465
 Length to Beam Ratio: 11.06 : 1
 'Natural speed' for length: 23.98 kts
 Power going to wave formation at top speed: 62 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 15.00 degrees
 Stern overhang: -2.00 ft / -0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  26.00 ft / 7.92 m
    - Forecastle (20 %): 24.00 ft / 7.32 m
    - Mid (67 %):  24.00 ft / 7.32 m (16.00 ft / 4.88 m aft of break)
    - Quarterdeck (15 %): 16.00 ft / 4.88 m
    - Stern:  16.00 ft / 4.88 m
    - Average freeboard: 21.52 ft / 6.56 m
 Ship tends to be wet forward

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 137.9 %
  - Above water (accommodation/working, high = better): 152.1 %
 Waterplane Area: 19,316 Square feet or 1,794 Square metres
 Displacement factor (Displacement / loading): 104 %
 Structure weight / hull surface area: 91 lbs/sq ft or 443 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.91
  - Longitudinal: 2.24
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent