My 2001 version of the GB/DT/1914

When I was determined to draw ships that looked like they belonged to the period and navy in 2001, I recast the GB/DT/1914 as a ship with two funnels and a forecastle, rather than a raked flush deck and single funnel, as the concept had been from 1971. To make this work in Springsharp, very lightweight machinery was required. The single gun is on the forecastle with the three triple torpedo tube mountings are aft. I had to add freeboard to make the design work, as well as use a normal displacement that would give a 900 ton (about) standard displacement. This is the resulting Springsharp report:

GB/DT/1914, Great Britain Torpedo Boat laid down 1914 (Engine 1941)

Displacement:
 894 t light; 923 t standard; 1,040 t normal; 1,134 t full load

Dimensions: Length overall / water x beam x draught
 265.84 ft / 265.00 ft x 28.00 ft x 9.00 ft (normal load)
 81.03 m / 80.77 m x 8.53 m  x 2.74 m

Armament:
      1 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1914 Model
   Quick firing gun in a deck mount with hoist
   on centreline forward
 Weight of broadside 32 lbs / 15 kg
 Shells per gun, main battery: 450
 9 - 21.0" / 533.4 mm above water torpedoes

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 2 shafts, 32,823 shp / 24,486 Kw = 32.00 kts
 Range 3,650nm at 15.00 kts
 Bunker at max displacement = 210 tons

Complement:
 91 - 119

Cost:
 £0.146 million / $0.583 million

Distribution of weights at normal displacement:
 Armament: 4 tons, 0.4 %
 Machinery: 570 tons, 54.8 %
 Hull, fittings & equipment: 320 tons, 30.8 %
 Fuel, ammunition & stores: 146 tons, 14.0 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   294 lbs / 133 Kg = 9.2 x 4.0 " / 102 mm shells or 0.2 torpedoes
 Stability (Unstable if below 1.00): 1.16
 Metacentric height 1.0 ft / 0.3 m
 Roll period: 11.9 seconds
 Steadiness - As gun platform (Average = 50 %): 51 %
   - Recoil effect (Restricted arc if above 1.00): 0.12
 Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
 Hull has raised forecastle, rise forward of midbreak
 Block coefficient: 0.545
 Length to Beam Ratio: 9.46 : 1
 'Natural speed' for length: 16.28 kts
 Power going to wave formation at top speed: 76 %
 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 (21.00 ft / 6.40 m aft of break)
    - Mid (32 %):  22.00 ft / 6.71 m (14.00 ft / 4.27 m aft of break)
    - Quarterdeck (15 %): 14.00 ft / 4.27 m
    - Stern:  14.00 ft / 4.27 m
    - Average freeboard: 16.66 ft / 5.08 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 180.5 %
  - Above water (accommodation/working, high = better): 27.3 %
 Waterplane Area: 5,155 Square feet or 479 Square metres
 Displacement factor (Displacement / loading): 59 %
 Structure weight / hull surface area: 25 lbs/sq ft or 121 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.42
  - Longitudinal: 5.53
  - Overall: 0.54
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is extremely poor