A 35-knot 1905 Tribal class design

I wondered what might be required to obtain a higher speed from a 1905 British Tribal class destroyer. The answer, in Springsharp, is to increase the freeboard and draft. By doing that, keeping the lightest machinery possible, and cutting the range to just 2,500 nm at 14 knots, the new version can make 35 knots:

GB/DD/1905 generic Tribal class, Great Britain Destroyer laid down 1905 (Engine 1950)

Displacement:
 814 t light; 839 t standard; 894 t normal; 938 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (276.92 ft / 275.00 ft) x 28.00 ft x (10.50 / 10.83 ft)
 (84.41 m / 83.82 m) x 8.53 m  x (3.20 / 3.30 m)

Armament:
      2 - 4.00" / 102 mm 45.0 cal guns - 32.27lbs / 14.64kg shells, 150 per gun
   Quick firing guns in deck mounts, 1905 Model
   2 x Single mounts on centreline ends, evenly spread
      Weight of broadside 65 lbs / 29 kg
      2 - 18.0" / 457 mm, 20.00 ft / 6.10 m torpedoes - 0.865 t each, 1.729 t total
 In 2 sets of deck mounted centre rotating tubes

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 2 shafts, 38,213 shp / 28,507 Kw = 35.00 kts
 Range 2,400nm at 14.00 kts
 Bunker at max displacement = 99 tons

Complement:
 81 - 106

Cost:
 £0.102 million / $0.407 million

Distribution of weights at normal displacement:
 Armament: 13 tons, 1.5 %
    - Guns: 12 tons, 1.3 %
    - Torpedoes: 2 tons, 0.2 %
 Machinery: 501 tons, 56.1 %
 Hull, fittings & equipment: 299 tons, 33.5 %
 Fuel, ammunition & stores: 80 tons, 8.9 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   245 lbs / 111 Kg = 7.7 x 4.0 " / 102 mm shells or 0.2 torpedoes
 Stability (Unstable if below 1.00): 1.28
 Metacentric height 1.1 ft / 0.4 m
 Roll period: 11.0 seconds
 Steadiness - As gun platform (Average = 50 %): 51 %
   - Recoil effect (Restricted arc if above 1.00): 0.11
 Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
 Hull has rise forward of midbreak,
   a normal bow and a round stern
 Block coefficient (normal/deep): 0.387 / 0.394
 Length to Beam Ratio: 9.82 : 1
 'Natural speed' for length: 16.58 kts
 Power going to wave formation at top speed: 74 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 5.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = length of deck as a percentage of waterline length):
    Fore end,  Aft end
    - Forecastle: 14.00 %,  22.00 ft / 6.71 m,  21.00 ft / 6.40 m
    - Forward deck: 15.00 %,  21.00 ft / 6.40 m,  21.00 ft / 6.40 m
    - Aft deck: 56.00 %,  13.00 ft / 3.96 m,  13.00 ft / 3.96 m
    - Quarter deck: 15.00 %,  13.00 ft / 3.96 m,  13.00 ft / 3.96 m
    - Average freeboard:  15.38 ft / 4.69 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 184.6 %
  - Above water (accommodation/working, high = better): 123.5 %
 Waterplane Area: 4,698 Square feet or 436 Square metres
 Displacement factor (Displacement / loading): 48 %
 Structure weight / hull surface area: 26 lbs/sq ft or 127 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.40
  - Longitudinal: 4.96
  - Overall: 0.52
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent