Ger/DL/1914, Germany Destroyer Leader laid down 1914 (Engine 1933)
Displacement:
1,214 t light; 1,262 t standard; 1,404 t normal; 1,518 t full load
Dimensions: Length overall / water x beam x draught
322.73 ft / 320.00 ft x 32.00 ft x 12.00 ft (normal load)
98.37 m / 97.54 m x 9.75 m x 3.66 m
Armament:
4 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1914 Model
Quick firing guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts - superfiring
Weight of broadside 141 lbs / 64 kg
Shells per gun, main battery: 250
6 - 23.6" / 600.0001 mm above water torpedoes
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 31,614 shp / 23,584 Kw = 32.00 kts
Range 3,600nm at 15.00 kts
Bunker at max displacement = 256 tons
Complement:
114 - 149
Cost:
£0.201 million / $0.804 million
Distribution of weights at normal displacement:
Armament: 18 tons, 1.3 %
Machinery: 719 tons, 51.2 %
Hull, fittings & equipment: 478 tons, 34.0 %
Fuel, ammunition & stores: 190 tons, 13.5 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
463 lbs / 210 Kg = 13.1 x 4.1 " / 105 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.34
Metacentric height 1.5 ft / 0.5 m
Roll period: 10.9 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.31
Seaboat quality (Average = 1.00): 1.05
Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak
Block coefficient: 0.400
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 17.89 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 2.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (20 %): 20.00 ft / 6.10 m (12.00 ft / 3.66 m aft of break)
- Mid (35 %): 19.00 ft / 5.79 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: 14.21 ft / 4.33 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 175.5 %
- Above water (accommodation/working, high = better): 66.0 %
Waterplane Area: 6,303 Square feet or 586 Square metres
Displacement factor (Displacement / loading): 71 %
Structure weight / hull surface area: 37 lbs/sq ft or 180 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.57
- Longitudinal: 2.52
- Overall: 0.66
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
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.
Saturday, February 05, 2005
Another try at my Ger/DL/1914 design
The design of the Ger/DL/1914 was inspired by the German ships, some built for Russia, that had three stacks and 4-4.1in guns, with 6-TT. By taking care of the SHP/ton issue, the design works well. A drawback of the basic concept is that it is low-volume, above and below the waterline.
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