I have this strange battlecruiser design study

I have a strange British battlecruiser design study that shows influences of Admiral Fisher's Super Lion ship concept. This is from the "Blue Book" set of designs. This is an 812ft long battlecruiser with 10-15in guns. The only notations on the page, besides the drawing are numbers indicating armour thicknesses. There is also shading to help identify areas of the same armour thickness. There is no secondary armament drawn, but I have supposed that it would be mounted in casemates in the forward superstructure. The really odd feature of this design is the combination of large areas of 4in armour along with a small patch of 12in armour. This is the Springsharp report:

GB/CB/1915, Great Britain Battlecruiser laid down 1915

Displacement:
   32,437 t light; 34,073 t standard; 37,132 t normal; 39,579 t full load

Dimensions: Length overall / water x beam x draught
   812.00 ft / 812.00 ft x 97.00 ft x 30.00 ft (normal load)
   247.50 m / 247.50 m x 29.57 m  x 9.14 m

Armament:
     10 - 15.00" / 381 mm guns (5x2 guns), 1,920.00lbs / 870.90kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority aft, 2 raised mounts - superfiring
     Main guns limited to end-on fire
     12 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1915 Model
     Quick firing guns in casemate mounts
     on side, all forward, 4 raised mounts - superfiring
   Weight of broadside 19,950 lbs / 9,049 kg
   Shells per gun, main battery: 80

Armour:
  - Belts:        Width (max)    Length (avg)        Height (avg)
   Main:    12.0" / 305 mm    275.00 ft / 83.82 m    9.00 ft / 2.74 m
   Ends:    4.00" / 102 mm    405.00 ft / 123.44 m    0.00 ft / 0.00 m
     132.00 ft / 40.23 m Unarmoured ends
   Upper:    4.00" / 102 mm    275.00 ft / 83.82 m    8.00 ft / 2.44 m
     Main Belt covers 52 % of normal length
     Main belt does not fully cover magazines and engineering spaces

  - Torpedo Bulkhead:
       2.00" / 51 mm    460.00 ft / 140.21 m    28.00 ft / 8.53 m

  - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
   Main:    8.00" / 203 mm    4.00" / 102 mm        4.00" / 102 mm
   2nd:    2.00" / 51 mm    2.00" / 51 mm        2.00" / 51 mm

  - Armour deck: 3.00" / 76 mm, Conning tower: 8.00" / 203 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 136,260 shp / 101,650 Kw = 30.00 kts
   Range 8,000nm at 15.00 kts
   Bunker at max displacement = 5,506 tons

Complement:
   1,336 - 1,738

Cost:
   £5.394 million / $21.577 million

Distribution of weights at normal displacement:
   Armament: 2,203 tons, 5.9 %
   Armour: 7,865 tons, 21.2 %
      - Belts: 1,884 tons, 5.1 %
      - Torpedo bulkhead: 953 tons, 2.6 %
      - Armament: 1,786 tons, 4.8 %
      - Armour Deck: 3,051 tons, 8.2 %
      - Conning Tower: 192 tons, 0.5 %
   Machinery: 5,161 tons, 13.9 %
   Hull, fittings & equipment: 17,207 tons, 46.3 %
   Fuel, ammunition & stores: 4,695 tons, 12.6 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     48,903 lbs / 22,182 Kg = 29.0 x 15.0 " / 381 mm shells or 5.9 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 5.6 ft / 1.7 m
   Roll period: 17.2 seconds
   Steadiness    - As gun platform (Average = 50 %): 77 %
           - Recoil effect (Restricted arc if above 1.00): 1.52
   Seaboat quality  (Average = 1.00): 1.55

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.550
   Length to Beam Ratio: 8.37 : 1
   'Natural speed' for length: 28.50 kts
   Power going to wave formation at top speed: 49 %
   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:        35.00 ft / 10.67 m
      - Forecastle (20 %):    32.00 ft / 9.75 m
      - Mid (67 %):        32.00 ft / 9.75 m (24.00 ft / 7.32 m aft of break)
      - Quarterdeck (15 %):    24.00 ft / 7.32 m
      - Stern:        24.00 ft / 7.32 m
      - Average freeboard:    29.60 ft / 9.02 m

Ship space, strength and comments:
   Space    - Hull below water (magazines/engines, low = better): 112.7 %
       - Above water (accommodation/working, high = better): 233.4 %
   Waterplane Area: 54,969 Square feet or 5,107 Square metres
   Displacement factor (Displacement / loading): 104 %
   Structure weight / hull surface area: 205 lbs/sq ft or 1,002 Kg/sq metre
   Hull strength (Relative):
       - Cross-sectional: 0.95
       - Longitudinal: 1.65
       - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   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

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