A 1914 version of a fast British scout cruiser

I thought that 5in guns might be appropriate for a fast scout laid down in 1914. The design goals were a high speed (37 knots), a good cruising speed (15 knots), a decent range (5600 nm), 6-5in guns and 4-21in TT. There is some modest protection to the bridge (CT) and guns. This is my concept of how the Super Swift could have been developed. The design really shouldn't require this much draft and this much power to reach 37 knots:

GB/CS/1914 SS 1, Great Britain Enter ship type laid down 1914 (Engine 1945)

Displacement:
 3,029 t light; 3,151 t standard; 3,502 t normal; 3,782 t full load

Dimensions: Length overall / water x beam x draught
 415.84 ft / 415.00 ft x 41.00 ft x 21.00 ft (normal load)
 126.75 m / 126.49 m x 12.50 m  x 6.40 m

Armament:
      6 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1914 Model
   Breech loading guns in deck mounts with hoists
   on centreline ends, evenly spread, all raised mounts - superfiring
 Weight of broadside 375 lbs / 170 kg
 Shells per gun, main battery: 250
 8 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 2.00" / 51 mm       -         -

   - Conning tower: 2.00" / 51 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 87,839 shp / 65,528 Kw = 37.00 kts
 Range 5,600nm at 15.00 kts
 Bunker at max displacement = 630 tons

Complement:
 226 - 295

Cost:
 £0.543 million / $2.174 million

Distribution of weights at normal displacement:
 Armament: 47 tons, 1.3 %
 Armour: 44 tons, 1.2 %
    - Belts: 0 tons, 0.0 %
    - Torpedo bulkhead: 0 tons, 0.0 %
    - Armament: 34 tons, 1.0 %
    - Armour Deck: 0 tons, 0.0 %
    - Conning Tower: 10 tons, 0.3 %
 Machinery: 2,011 tons, 57.4 %
 Hull, fittings & equipment: 927 tons, 26.5 %
 Fuel, ammunition & stores: 472 tons, 13.5 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   686 lbs / 311 Kg = 11.0 x 5.0 " / 127 mm shells or 0.3 torpedoes
 Stability (Unstable if below 1.00): 1.40
 Metacentric height 2.4 ft / 0.7 m
 Roll period: 11.2 seconds
 Steadiness - As gun platform (Average = 50 %): 57 %
   - Recoil effect (Restricted arc if above 1.00): 0.37
 Seaboat quality  (Average = 1.00): 1.14

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.343
 Length to Beam Ratio: 10.12 : 1
 'Natural speed' for length: 20.37 kts
 Power going to wave formation at top speed: 65 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 2.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  24.00 ft / 7.32 m
    - Forecastle (20 %): 22.00 ft / 6.71 m
    - Mid (38 %):  22.00 ft / 6.71 m (15.00 ft / 4.57 m aft of break)
    - Quarterdeck (15 %): 15.00 ft / 4.57 m
    - Stern:  15.00 ft / 4.57 m
    - Average freeboard: 17.82 ft / 5.43 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 196.1 %
  - Above water (accommodation/working, high = better): 99.8 %
 Waterplane Area: 10,346 Square feet or 961 Square metres
 Displacement factor (Displacement / loading): 72 %
 Structure weight / hull surface area: 41 lbs/sq ft or 202 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.45
  - Longitudinal: 2.23
  - Overall: 0.52
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is adequate