A German battlecruiser with 16.5in guns

This German battlecruiser design seems to outclass the Hood type. This ship has 8-16.5in/45 BLR and 14-6in/50 QF guns. I choose to omit the problemmatic torpedo tubes. These were a great flaw in the German approach to capital ship design in the 1905 to 1918 period. The one feature that the Hood over my ship is much higher speed. My design has coal-fired boilers and a speed of 28 knots. My design seems to be much better protected, however. A Hood class ship could outrun this ship, however. This design continues to have the "Derfflinger look". This is the Springsharp report:

Ger/CB/1916, Germany Battlecruiser laid down 1916

Displacement:
 39,091 t light; 41,019 t standard; 44,767 t normal; 47,765 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (817.00 ft / 815.00 ft) x 102.00 ft x (31.00 / 32.71 ft)
 (249.02 m / 248.41 m) x 31.09 m  x (9.45 / 9.97 m)

Armament:
      8 - 16.50" / 419 mm 45.0 cal guns - 2,265.00lbs / 1,027.39kg shells, 90 per gun
   Breech loading guns in turret on barbette mounts , 1916 Model
   4 x Single mounts on centreline ends, evenly spread
  2 raised mounts - superfiring
      14 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 150 per gun
   Breech loading guns in casemate mounts , 1916 Model
   14 x Single mounts on sides, forward deck aft
 Weight of broadside 19,645 lbs / 19,645 kg

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 13.0" / 330 mm 540.00 ft / 164.59 m 8.00 ft / 2.44 m
 Ends: 5.00" / 127 mm 275.00 ft / 83.82 m 12.00 ft / 3.66 m
 Upper: 10.0" / 254 mm 540.00 ft / 164.59 m 8.00 ft / 2.44 m
   Main Belt covers 102 % of normal length

   - Torpedo Bulkhead:
  2.00" / 51 mm 540.00 ft / 164.59 m 31.00 ft / 9.45 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 13.0" / 330 mm 9.00" / 229 mm  13.0" / 330 mm
 2nd: 5.00" / 127 mm 3.00" / 76 mm  5.00" / 127 mm

   - Armour deck: 4.00" / 102 mm, Conning tower: 13.00" / 330 mm

Machinery:
 Coal and oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 120,078 shp / 89,578 Kw = 28.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 6,746 tons (100% coal)

Complement:
 1,538 - 2,000

Cost:
 £6.248 million / $24.991 million

Distribution of weights at normal displacement:
 Armament: 3,765 tons, 8.4 %
 Armour: 14,826 tons, 33.1 %
    - Belts: 4,840 tons, 10.8 %
    - Torpedo bulkhead: 1,239 tons, 2.8 %
    - Armament: 3,862 tons, 8.6 %
    - Armour Deck: 4,533 tons, 10.1 %
    - Conning Tower: 353 tons, 0.8 %
 Machinery: 4,921 tons, 11.0 %
 Hull, fittings & equipment: 17,247 tons, 38.5 %
 Fuel, ammunition & stores: 5,676 tons, 12.7 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   62,111 lbs / 28,173 Kg = 27.7 x 16.5 " / 419 mm shells or 9.1 torpedoes
 Stability (Unstable if below 1.00): 1.12
 Metacentric height 6.4 ft / 2.0 m
 Roll period: 16.9 seconds
 Steadiness - As gun platform (Average = 50 %): 63 %
   - Recoil effect (Restricted arc if above 1.00): 0.77
 Seaboat quality  (Average = 1.00): 1.26

Hull form characteristics:
 Hull has a flush deck,
   a normal bow and a cruiser stern
 Block coefficient (normal/deep): 0.608 / 0.615
 Length to Beam Ratio: 7.99 : 1
 'Natural speed' for length: 28.55 kts
 Power going to wave formation at top speed: 47 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 0.00 degrees
 Stern overhang: 2.00 ft / 0.61 m
 Freeboard (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 20.00 %,  32.00 ft / 9.75 m,  25.00 ft / 7.62 m
    - Forward deck: 30.00 %,  25.00 ft / 7.62 m,  23.00 ft / 7.01 m
    - Aft deck: 35.00 %,  23.00 ft / 7.01 m,  19.00 ft / 5.79 m
    - Quarter deck: 15.00 %,  19.00 ft / 5.79 m,  19.00 ft / 5.79 m
    - Average freeboard:  22.96 ft / 7.00 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 89.0 %
  - Above water (accommodation/working, high = better): 169.8 %
 Waterplane Area: 61,256 Square feet or 5,691 Square metres
 Displacement factor (Displacement / loading): 108 %
 Structure weight / hull surface area: 201 lbs/sq ft or 982 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.99
  - Longitudinal: 1.09
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent
 Good seaboat, rides out heavy weather easily