A super-destroyer: GB/DL/1921

This is probably my best-ever attempt at a super destroyer in Springsharp. This is a design to be laid down in 1921 with very lightweight machinery. The ship has 6-5.5in QF guns, 2-4in AA guns, 16-2pdr AA guns, and 8-24in TT. The speed is very good 37 knots. This is only possible because destroyer types in Springsharp just need a strength above 0.50. This design has a strength of 0.55. The design still must have seakeeping above 1.00, which it does, as the seakeeping is 1.07. This is the Springsharp report:

GB/DL/1921, Great Britain Destroyer Leader laid down 1921 (Engine 1941)

Displacement:
 2,410 t light; 2,517 t standard; 2,750 t normal; 2,936 t full load

Dimensions: Length overall / water x beam x draught
 435.00 ft / 435.00 ft x 43.00 ft x 14.00 ft (normal load)
 132.59 m / 132.59 m x 13.11 m  x 4.27 m

Armament:
      6 - 5.50" / 140 mm guns (3x2 guns), 83.19lbs / 37.73kg shells, 1921 Model
   Breech loading guns in deck mounts with hoists
   on centreline ends, majority forward, 1 raised mount - superfiring
      2 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1921 Model
   Anti-aircraft guns in deck mounts with hoists
   on side, all amidships, all raised mounts - superfiring
      16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.89kg shells, 1921 Model
   Anti-aircraft guns in deck mounts 
   on side, all amidships, 2 raised mounts - superfiring
 Weight of broadside 594 lbs / 270 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, 61,210 shp / 45,663 Kw = 37.00 kts
 Range 4,500nm at 15.00 kts
 Bunker at max displacement = 419 tons

Complement:
 189 - 246

Cost:
 £0.870 million / $3.481 million

Distribution of weights at normal displacement:
 Armament: 74 tons, 2.7 %
 Machinery: 1,394 tons, 50.7 %
 Hull, fittings & equipment: 942 tons, 34.2 %
 Fuel, ammunition & stores: 340 tons, 12.4 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   793 lbs / 360 Kg = 9.5 x 5.5 " / 140 mm shells or 0.4 torpedoes
 Stability (Unstable if below 1.00): 1.40
 Metacentric height 2.5 ft / 0.8 m
 Roll period: 11.3 seconds
 Steadiness - As gun platform (Average = 50 %): 54 %
   - Recoil effect (Restricted arc if above 1.00): 0.45
 Seaboat quality  (Average = 1.00): 1.07

Hull form characteristics:
 Hull has rise forward of midbreak
   and transom stern
 Block coefficient: 0.368
 Length to Beam Ratio: 10.12 : 1
 'Natural speed' for length: 24.23 kts
 Power going to wave formation at top speed: 65 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 0.00 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 %): 23.00 ft / 7.01 m
    - Mid (33 %):  23.00 ft / 7.01 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: 17.88 ft / 5.45 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 184.3 %
  - Above water (accommodation/working, high = better): 121.3 %
 Waterplane Area: 11,789 Square feet or 1,095 Square metres
 Displacement factor (Displacement / loading): 72 %
 Structure weight / hull surface area: 44 lbs/sq ft or 213 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.48
  - Longitudinal: 1.81
  - Overall: 0.55
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent