The GB/DD/1905 design from the Red Book

The original pencil drawing and specification for the GB/DD/1905 design was for an 800 ton ship with 2-20pdr (88mm) QF guns and a rather anachronistic 2-21in torpedo tubes. The speed was 32 knots. There were three funnels with the first being raised and more narrow. The fuel allowed was 250 tons. This is the resulting Springsharp report:

"GB/DD/1905, Great Britain Destroyer laid down 1905 (Engine 1937)

Displacement:
 736 t light; 758 t standard; 880 t normal; 977 t full load

Dimensions: Length overall / water x beam x draught
 266.21 ft / 265.00 ft x 27.00 ft x 10.00 ft (normal load)
 81.14 m / 80.77 m x 8.23 m  x 3.05 m

Armament:
      2 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1905 Model
   Quick firing guns in deck mounts with hoists
   on centreline ends, evenly spread
 Weight of broadside 42 lbs / 19 kg
 Shells per gun, main battery: 200
 2 - 21.0" / 533.4 mm above water torpedoes

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 2 shafts, 26,989 shp / 20,134 Kw = 32.00 kts
 Range 4,200nm at 15.00 kts
 Bunker at max displacement = 219 tons

Complement:
 80 - 105

Cost:
 £0.096 million / $0.385 million

Distribution of weights at normal displacement:
 Armament: 5 tons, 0.6 %
 Machinery: 472 tons, 53.7 %
 Hull, fittings & equipment: 259 tons, 29.4 %
 Fuel, ammunition & stores: 144 tons, 16.4 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   250 lbs / 114 Kg = 12.0 x 3.5 " / 88 mm shells or 0.2 torpedoes
 Stability (Unstable if below 1.00): 1.43
 Metacentric height 1.3 ft / 0.4 m
 Roll period: 9.9 seconds
 Steadiness - As gun platform (Average = 50 %): 55 %
   - Recoil effect (Restricted arc if above 1.00): 0.13
 Seaboat quality  (Average = 1.00): 1.09

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.430
 Length to Beam Ratio: 9.81 : 1
 'Natural speed' for length: 16.28 kts
 Power going to wave formation at top speed: 72 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 3.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  23.00 ft / 7.01 m
    - Forecastle (20 %): 20.00 ft / 6.10 m
    - Mid (28 %):  20.00 ft / 6.10 m (12.00 ft / 3.66 m aft of break)
    - Quarterdeck (15 %): 12.00 ft / 3.66 m
    - Stern:  12.00 ft / 3.66 m
    - Average freeboard: 14.48 ft / 4.41 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 178.0 %
  - Above water (accommodation/working, high = better): 112.2 %
 Waterplane Area: 4,495 Square feet or 418 Square metres
 Displacement factor (Displacement / loading): 57 %
 Structure weight / hull surface area: 24 lbs/sq ft or 116 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.42
  - Longitudinal: 3.86
  - Overall: 0.52
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is adequate