A more expansive view of the Ger/BB/1905 design

In the summer of 1973, I had experimented with the Ger/BB/1905 design to see what might be achieved by using lighter machinery. The dimesions for this design are 580ft x 90ft x 26.6ft. The standard displacement is 22,000 tons. I apparently expected to use a 23,500 tons for normal load. The armament is 8-12in/45 and 12-4in QF guns. The armor basis was 11in. I had expected to obtain 26.5 knots with 95,400 SHP, but with 87,096 SHP, 27.5 knots can be achieved. This is the Springsharp report:

Ger/BB/1905, Germany Battleship laid down 1905 (Engine 1927)

Displacement:
 20,893 t light; 21,692 t standard; 23,500 t normal; 24,947 t full load

Dimensions: Length overall / water x beam x draught
 580.00 ft / 580.00 ft x 90.00 ft x 26.60 ft (normal load)
 176.78 m / 176.78 m x 27.43 m  x 8.11 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
   Breech loading guns in casemate mounts 
   on side, all amidships
 Weight of broadside 7,296 lbs / 3,309 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 10.0" / 254 mm 385.00 ft / 117.35 m 16.00 ft / 4.88 m
 Ends: 4.00" / 102 mm 195.00 ft / 59.44 m 16.00 ft / 4.88 m
   Main Belt covers 102 % of normal length

   - Torpedo Bulkhead:
  1.50" / 38 mm 385.00 ft / 117.35 m 25.00 ft / 7.62 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 11.0" / 279 mm 6.00" / 152 mm  11.0" / 279 mm
 2nd: 4.00" / 102 mm 4.00" / 102 mm  4.00" / 102 mm

   - Armour deck: 3.00" / 76 mm, Conning tower: 11.00" / 279 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 87,096 shp / 64,974 Kw = 27.50 kts
 Range 8,000nm at 15.00 kts
 Bunker at max displacement = 3,255 tons

Complement:
 948 - 1,233

Cost:
 £1.882 million / $7.529 million

Distribution of weights at normal displacement:
 Armament: 912 tons, 3.9 %
 Armour: 8,176 tons, 34.8 %
    - Belts: 3,141 tons, 13.4 %
    - Torpedo bulkhead: 534 tons, 2.3 %
    - Armament: 2,202 tons, 9.4 %
    - Armour Deck: 2,104 tons, 9.0 %
    - Conning Tower: 194 tons, 0.8 %
 Machinery: 2,749 tons, 11.7 %
 Hull, fittings & equipment: 9,056 tons, 38.5 %
 Fuel, ammunition & stores: 2,607 tons, 11.1 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   39,461 lbs / 17,899 Kg = 45.7 x 12.0 " / 305 mm shells or 6.2 torpedoes
 Stability (Unstable if below 1.00): 1.07
 Metacentric height 4.9 ft / 1.5 m
 Roll period: 17.1 seconds
 Steadiness - As gun platform (Average = 50 %): 57 %
   - Recoil effect (Restricted arc if above 1.00): 0.62
 Seaboat quality  (Average = 1.00): 1.15

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.592
 Length to Beam Ratio: 6.44 : 1
 'Natural speed' for length: 24.08 kts
 Power going to wave formation at top speed: 58 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -1.00 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 %): 28.00 ft / 8.53 m
    - Mid (68 %):  28.00 ft / 8.53 m (20.00 ft / 6.10 m aft of break)
    - Quarterdeck (15 %): 20.00 ft / 6.10 m
    - Stern:  20.00 ft / 6.10 m
    - Average freeboard: 25.52 ft / 7.78 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 86.6 %
  - Above water (accommodation/working, high = better): 197.3 %
 Waterplane Area: 37,906 Square feet or 3,522 Square metres
 Displacement factor (Displacement / loading): 112 %
 Structure weight / hull surface area: 163 lbs/sq ft or 795 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.92
  - Longitudinal: 1.97
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent