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
This is a forum for discussion of topics relating to the Dreadnought era, prior to the ascendency of naval aviation. We will be discussing history, ship design, and naval wargaming.
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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