The upgunned Kaiser class

I made an attempt to rearm the Kaiser class battleships with 8-17in guns (43cm). I am not sure how successful the design is, but the design satisfies Springsharp:

Kaiser class-upgunned, Germany Battleship laid down 1915 (Engine 1911)

Displacement:
 26,874 t light; 28,603 t standard; 31,300 t normal; 33,458 t full load

Dimensions: Length overall / water x beam x draught
 572.18 ft / 565.62 ft x 95.14 ft (Bulges 98.43 ft) x 29.86 ft (normal load)
 174.40 m / 172.40 m x 29.00 m (Bulges 30.00 m)  x 9.10 m

Armament:
      2 - 16.93" / 430 mm guns (1x2 guns), 2,425.91lbs / 1,100.37kg shells, 1915 Model
   Breech loading guns in a turret (on a barbette)
   on centreline forward
      2 - 16.93" / 430 mm guns (1x2 guns), 2,425.91lbs / 1,100.37kg shells, 1915 Model
   Breech loading guns in a turret (on a barbette)
   on centreline amidships
      4 - 16.93" / 430 mm guns (2x2 guns), 2,425.91lbs / 1,100.37kg shells, 1915 Model
   Breech loading guns in turrets (on barbettes)
   on centreline, all aft, 1 raised mount - superfiring
      14 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1915 Model
   Breech loading guns in casemate mounts 
   on side, evenly spread
   14 guns in hull casemates - Limited use in heavy seas
      4 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1915 Model
   Anti-aircraft guns in deck mounts with hoists
   on side, evenly spread, all raised mounts
 Weight of broadside 20,932 lbs / 9,495 kg
 Shells per gun, main battery: 90
 5 - 19.7" / 500 mm submerged torpedo tubes

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 13.8" / 350 mm 311.68 ft / 95.00 m 9.84 ft / 3.00 m
 Ends: 7.09" / 180 mm 219.82 ft / 67.00 m 9.84 ft / 3.00 m
   34.12 ft / 10.40 m Unarmoured ends
 Upper: 7.09" / 180 mm 311.68 ft / 95.00 m 9.84 ft / 3.00 m
   Main Belt covers 85 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead and Bulges:
  1.57" / 40 mm 311.68 ft / 95.00 m 29.86 ft / 9.10 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 11.8" / 300 mm 5.91" / 150 mm  11.8" / 300 mm
 2nd: 11.8" / 300 mm 5.91" / 150 mm  11.8" / 300 mm
 3rd: 11.8" / 300 mm 5.91" / 150 mm  11.8" / 300 mm
 4th: 6.69" / 170 mm 3.15" / 80 mm  3.15" / 80 mm

   - Armour deck: 2.36" / 60 mm, Conning tower: 15.75" / 400 mm

Machinery:
 Coal fired boilers, steam turbines, 
 Direct drive, 3 shafts, 31,011 shp / 23,134 Kw = 20.00 kts
 Range 7,900nm at 12.00 kts
 Bunker at max displacement = 4,855 tons (100% coal)

Complement:
 1,176 - 1,529

Cost:
 £4.847 million / $19.388 million

Distribution of weights at normal displacement:
 Armament: 2,617 tons, 8.4 %
 Armour: 9,269 tons, 29.6 %
    - Belts: 3,523 tons, 11.3 %
    - Torpedo bulkhead: 542 tons, 1.7 %
    - Armament: 3,051 tons, 9.7 %
    - Armour Deck: 1,817 tons, 5.8 %
    - Conning Tower: 337 tons, 1.1 %
 Machinery: 1,384 tons, 4.4 %
 Hull, fittings & equipment: 13,604 tons, 43.5 %
 Fuel, ammunition & stores: 4,426 tons, 14.1 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   38,961 lbs / 17,672 Kg = 16.1 x 16.9 " / 430 mm shells or 5.6 torpedoes
 Stability (Unstable if below 1.00): 1.15
 Metacentric height 6.0 ft / 1.8 m
 Roll period: 16.8 seconds
 Steadiness - As gun platform (Average = 50 %): 62 %
   - Recoil effect (Restricted arc if above 1.00): 0.93
 Seaboat quality  (Average = 1.00): 1.66

Hull form characteristics:
 Hull has rise forward of midbreak, low quarterdeck 
 Block coefficient: 0.659
 Length to Beam Ratio: 5.75 : 1
 'Natural speed' for length: 23.78 kts
 Power going to wave formation at top speed: 45 %
 Trim (Max stability = 0, Max steadiness = 100): 37
 Bow angle (Positive = bow angles forward): -2.00 degrees
 Stern overhang: 6.56 ft / 2.00 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  26.25 ft / 8.00 m
    - Forecastle (20 %): 24.61 ft / 7.50 m
    - Mid (69 %):  24.61 ft / 7.50 m (14.76 ft / 4.50 m aft of break)
    - Quarterdeck (15 %): 14.76 ft / 4.50 m (16.40 ft / 5.00 m before break)
    - Stern:  14.76 ft / 4.50 m
    - Average freeboard: 21.82 ft / 6.65 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 100.9 %
  - Above water (accommodation/working, high = better): 150.7 %
 Waterplane Area: 41,571 Square feet or 3,862 Square metres
 Displacement factor (Displacement / loading): 95 %
 Structure weight / hull surface area: 231 lbs/sq ft or 1,130 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.92
  - Longitudinal: 2.29
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent
 Excellent seaboat, comfortable, can fire her guns in the heaviest weather