The Red Book version of the Ger/BB/1905 design

If you accept the fact that the Ger/BB/1905 design has relatively light-weight machinery and oil-fired boilers, then the design works well. I actually used the "classic" Blue Book dimensions with the armouring scheme from the page in the Red Book. This portrays the ship as using an "all-or-nothing" armouring scheme. The armament is the 8-12in BLR and 12-4in QF guns. The armour basis is 11in. The deck armour is 3in. The Standard displacement was meant to be 19,000 tons. This design came out just less than that figure, at 18,939 tons (close enough). The ship, in case you are not familiar with the photo art and descriptions, has a long forecastle, superimposed turrets, three funnels, and a tripod foremast with a large top. The originally intended speed was 23 knots, and this version follows that intent. This is the Springsharp report:

Ger/BB/1905, Germany Battleship laid down 1905 (Engine 1911)

Displacement:
 18,149 t light; 18,939 t standard; 21,000 t normal; 22,649 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
   Quick firing guns in casemate mounts 
   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: 11.0" / 279 mm 370.00 ft / 112.78 m 8.00 ft / 2.44 m
 Ends: Unarmoured
 Upper: 8.00" / 203 mm 370.00 ft / 112.78 m 8.00 ft / 2.44 m
   Main Belt covers 98 % of normal length

   - Torpedo Bulkhead:
  1.50" / 38 mm 370.00 ft / 112.78 m 25.00 ft / 7.62 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 11.0" / 279 mm 8.00" / 203 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, 38,955 shp / 29,060 Kw = 23.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 3,710 tons

Complement:
 871 - 1,133

Cost:
 £1.623 million / $6.491 million

Distribution of weights at normal displacement:
 Armament: 912 tons, 4.3 %
 Armour: 7,256 tons, 34.6 %
    - Belts: 2,456 tons, 11.7 %
    - Torpedo bulkhead: 513 tons, 2.4 %
    - Armament: 2,124 tons, 10.1 %
    - Armour Deck: 1,983 tons, 9.4 %
    - Conning Tower: 180 tons, 0.9 %
 Machinery: 1,581 tons, 7.5 %
 Hull, fittings & equipment: 8,400 tons, 40.0 %
 Fuel, ammunition & stores: 2,851 tons, 13.6 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   39,419 lbs / 17,880 Kg = 45.6 x 12.0 " / 305 mm shells or 7.2 torpedoes
 Stability (Unstable if below 1.00): 1.05
 Metacentric height 4.7 ft / 1.4 m
 Roll period: 17.4 seconds
 Steadiness - As gun platform (Average = 50 %): 87 %
   - Recoil effect (Restricted arc if above 1.00): 0.73
 Seaboat quality  (Average = 1.00): 1.73

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.529
 Length to Beam Ratio: 6.44 : 1
 'Natural speed' for length: 24.08 kts
 Power going to wave formation at top speed: 46 %
 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:  28.00 ft / 8.53 m
    - Forecastle (20 %): 25.00 ft / 7.62 m
    - Mid (67 %):  25.00 ft / 7.62 m (17.00 ft / 5.18 m aft of break)
    - Quarterdeck (15 %): 17.00 ft / 5.18 m
    - Stern:  17.00 ft / 5.18 m
    - Average freeboard: 22.60 ft / 6.89 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 74.1 %
  - Above water (accommodation/working, high = better): 178.0 %
 Waterplane Area: 35,733 Square feet or 3,320 Square metres
 Displacement factor (Displacement / loading): 119 %
 Structure weight / hull surface area: 162 lbs/sq ft or 793 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.93
  - Longitudinal: 1.94
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is excellent
 Room for accommodation and workspaces is excellent
 Ship has slow, easy roll, a good, steady gun platform
 Excellent seaboat, comfortable, can fire her guns in the heaviest weather