The Ger/BB/1907 design

I implemented the Ger/BB/1907 design in Springsharp using a detailed inboard profile and specifications from the Blue Book. There is so much excess capacity in the design, that I was able to give the ship a 27 knot speed with 1907 machinery. These are the original specifications:

Standard Displacement:  25,847 tons

Dimensions:  620ft x 105ft x 26ft

Armament:  8-12in/50, 12-4in QF guns

Cost: £2.3 Million

Cp=0.56, Cm=0.95

54,000 SHP = 24 knots

Weights:
    800 tons armament
  4,000 tons machinery
  7,547 tons protection
 11,500 tons hull
  2,000 tons miscellaneous

This is the Springsharp report:

Ger/BB/1907, Germany Battleship laid down 1907

Displacement:
 24,892 t light; 25,842 t standard; 28,990 t normal; 31,509 t full load

Dimensions: Length overall / water x beam x draught
 620.00 ft / 620.00 ft x 105.00 ft x 26.00 ft (normal load)
 188.98 m / 188.98 m x 32.00 m  x 7.92 m

Armament:
      8 - 12.00" / 305 mm guns (4x2 guns), 864.00lbs / 391.90kg shells, 1907 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, 1907 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: 13.0" / 330 mm 335.00 ft / 102.11 m 8.00 ft / 2.44 m
 Ends: Unarmoured
 Upper: 8.00" / 203 mm 335.00 ft / 102.11 m 8.00 ft / 2.44 m
   Main Belt covers 83 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.50" / 38 mm 335.00 ft / 102.11 m 26.00 ft / 7.92 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 13.0" / 330 mm 10.0" / 254 mm  10.0" / 254 mm
 2nd: 3.00" / 76 mm 3.00" / 76 mm  3.00" / 76 mm

   - Armour deck: 3.00" / 76 mm, Conning tower: 10.00" / 254 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 91,746 shp / 68,443 Kw = 27.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 5,667 tons

Complement:
 1,110 - 1,444

Cost:
 £2.367 million / $9.468 million

Distribution of weights at normal displacement:
 Armament: 912 tons, 3.1 %
 Armour: 8,157 tons, 28.1 %
    - Belts: 2,605 tons, 9.0 %
    - Torpedo bulkhead: 483 tons, 1.7 %
    - Armament: 2,225 tons, 7.7 %
    - Armour Deck: 2,641 tons, 9.1 %
    - Conning Tower: 203 tons, 0.7 %
 Machinery: 5,213 tons, 18.0 %
 Hull, fittings & equipment: 10,610 tons, 36.6 %
 Fuel, ammunition & stores: 4,098 tons, 14.1 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   41,609 lbs / 18,874 Kg = 48.2 x 12.0 " / 305 mm shells or 5.9 torpedoes
 Stability (Unstable if below 1.00): 1.24
 Metacentric height 8.0 ft / 2.4 m
 Roll period: 15.6 seconds
 Steadiness - As gun platform (Average = 50 %): 56 %
   - Recoil effect (Restricted arc if above 1.00): 0.30
 Seaboat quality  (Average = 1.00): 1.12

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.599
 Length to Beam Ratio: 5.90 : 1
 'Natural speed' for length: 24.90 kts
 Power going to wave formation at top speed: 56 %
 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:  29.00 ft / 8.84 m
    - Forecastle (20 %): 26.00 ft / 7.92 m
    - Mid (68 %):  26.00 ft / 7.92 m (18.00 ft / 5.49 m aft of break)
    - Quarterdeck (15 %): 18.00 ft / 5.49 m
    - Stern:  18.00 ft / 5.49 m
    - Average freeboard: 23.68 ft / 7.22 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 101.7 %
  - Above water (accommodation/working, high = better): 195.2 %
 Waterplane Area: 47,589 Square feet or 4,421 Square metres
 Displacement factor (Displacement / loading): 112 %
 Structure weight / hull surface area: 166 lbs/sq ft or 809 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.95
  - Longitudinal: 1.56
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent