GB/DL/1906, Great Britain Destroyer Leader laid down 1906 (Engine 1941)
Displacement:
1,167 t light; 1,215 t standard; 1,350 t normal; 1,458 t full load
Dimensions: Length overall / water x beam x draught
325.77 ft / 325.00 ft x 30.00 ft x 12.00 ft (normal load)
99.29 m / 99.06 m x 9.14 m x 3.66 m
Armament:
4 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1906 Model
Quick firing guns in deck mounts with hoists
on centreline, evenly spread
Aft Main mounts separated by engine room
Weight of broadside 83 lbs / 38 kg
Shells per gun, main battery: 450
2 - 18.0" / 457.2 mm above water torpedoes
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 44,471 shp / 33,175 Kw = 35.00 kts
Range 3,750nm at 15.00 kts
Bunker at max displacement = 243 tons
Complement:
110 - 144
Cost:
£0.157 million / $0.626 million
Distribution of weights at normal displacement:
Armament: 10 tons, 0.8 %
Machinery: 764 tons, 56.6 %
Hull, fittings & equipment: 393 tons, 29.1 %
Fuel, ammunition & stores: 183 tons, 13.5 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
326 lbs / 148 Kg = 15.7 x 3.5 " / 88 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.46
Metacentric height 1.6 ft / 0.5 m
Roll period: 10.0 seconds
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0.17
Seaboat quality (Average = 1.00): 1.09
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.404
Length to Beam Ratio: 10.83 : 1
'Natural speed' for length: 18.03 kts
Power going to wave formation at top speed: 70 %
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: 22.00 ft / 6.71 m
- Forecastle (20 %): 20.50 ft / 6.25 m
- Mid (32 %): 20.50 ft / 6.25 m (12.50 ft / 3.81 m aft of break)
- Quarterdeck (15 %): 12.50 ft / 3.81 m
- Stern: 12.50 ft / 3.81 m
- Average freeboard: 15.18 ft / 4.63 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 189.7 %
- Above water (accommodation/working, high = better): 130.5 %
Waterplane Area: 6,015 Square feet or 559 Square metres
Displacement factor (Displacement / loading): 55 %
Structure weight / hull surface area: 28 lbs/sq ft or 136 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.43
- Longitudinal: 2.79
- Overall: 0.52
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
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Sunday, October 02, 2005
The 2001 version of the GB/DL/1906
If you allow very lightweight machinery, the GB/DL/1906 design works fairly well in Springsharp. I believe that the intended standard displacement was 1,200 tons. I used a greater normal displacement that gives a 1,215 ton standard displacement. I was able to achieve the 35 knot speed with a 15 knot cruising speed. The armament is 4-88mm (2opdr) QF guns and 2-18in TT (I could not in good conscience give them 21in TT in 1906), although that was the original intent. This is the Springsharp report:
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