The GB/DL/1927 design

This version of a British super destroyer, the GB/DL/1927, is incrementally better, although the armament is now 4.7in QF guns, but there are 8 of them. The speed is now 37.5 knots with a maximum range of 4,250 nm at 15 knots. This is the Springsharp report:

GB/DL/1927, Great Britain Destroyer Leader laid down 1927 (Engine 1941)

Displacement:
 2,378 t light; 2,472 t standard; 2,690 t normal; 2,864 t full load

Dimensions: Length overall / water x beam x draught
 409.82 ft / 408.00 ft x 38.00 ft x 13.00 ft (normal load)
 124.91 m / 124.36 m x 11.58 m  x 3.96 m

Armament:
      8 - 4.70" / 119 mm guns (4x2 guns), 51.91lbs / 23.55kg shells, 1927 Model
   Quick firing guns in deck mounts with hoists
   on centreline ends, evenly spread, 1 raised mount - superfiring
      1 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1927 Model
   Anti-aircraft gun in a deck mount with hoist
   on centreline amidships, 1 raised gun
      12 - 1.57" / 40.0 mm guns (3x4 guns), 1.95lbs / 0.89kg shells, 1927 Model
   Anti-aircraft guns in deck mounts 
   on centreline, evenly spread, all raised mounts
 Weight of broadside 471 lbs / 214 kg
 Shells per gun, main battery: 150
 8 - 24.0" / 609.6 mm above water torpedoes

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 2 shafts, 71,057 shp / 53,009 Kw = 37.50 kts
 Range 4,250nm at 15.00 kts
 Bunker at max displacement = 392 tons

Complement:
 186 - 242

Cost:
 £1.258 million / $5.033 million

Distribution of weights at normal displacement:
 Armament: 59 tons, 2.2 %
 Machinery: 1,524 tons, 56.7 %
 Hull, fittings & equipment: 795 tons, 29.5 %
 Fuel, ammunition & stores: 312 tons, 11.6 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   598 lbs / 271 Kg = 11.5 x 4.7 " / 119 mm shells or 0.3 torpedoes
 Stability (Unstable if below 1.00): 1.40
 Metacentric height 2.1 ft / 0.6 m
 Roll period: 11.0 seconds
 Steadiness - As gun platform (Average = 50 %): 51 %
   - Recoil effect (Restricted arc if above 1.00): 0.52
 Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
 Hull has rise forward of midbreak
   and transom stern
 Block coefficient: 0.467
 Length to Beam Ratio: 10.74 : 1
 'Natural speed' for length: 23.01 kts
 Power going to wave formation at top speed: 70 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 4.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  26.00 ft / 7.92 m
    - Forecastle (20 %): 24.00 ft / 7.32 m
    - Mid (33 %):  24.00 ft / 7.32 m (16.00 ft / 4.88 m aft of break)
    - Quarterdeck (15 %): 16.00 ft / 4.88 m
    - Stern:  16.00 ft / 4.88 m
    - Average freeboard: 18.80 ft / 5.73 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 199.5 %
  - Above water (accommodation/working, high = better): 100.6 %
 Waterplane Area: 10,426 Square feet or 969 Square metres
 Displacement factor (Displacement / loading): 64 %
 Structure weight / hull surface area: 36 lbs/sq ft or 176 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.43
  - Longitudinal: 2.30
  - Overall: 0.51
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is adequate