Ger/DL/1914, Germany Destroyer Leader laid down 1914 (Engine 1937)
Displacement:
1,067 t light; 1,102 t standard; 1,250 t normal; 1,368 t full load
Dimensions: Length overall / water x beam x draught
321.42 ft / 320.00 ft x 33.00 ft x 10.00 ft (normal load)
97.97 m / 97.54 m x 10.06 m x 3.05 m
Armament:
4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1914 Model
Quick firing guns in deck mounts with hoists
on centreline ends, evenly spread
Weight of broadside 128 lbs / 58 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm above water torpedoes
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 29,789 shp / 22,223 Kw = 32.00 kts
Range 4,200nm at 15.00 kts
Bunker at max displacement = 266 tons
Complement:
104 - 136
Cost:
£0.176 million / $0.704 million
Distribution of weights at normal displacement:
Armament: 16 tons, 1.3 %
Machinery: 626 tons, 50.1 %
Hull, fittings & equipment: 395 tons, 31.6 %
Fuel, ammunition & stores: 183 tons, 14.7 %
Miscellaneous weights: 30 tons, 2.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
414 lbs / 188 Kg = 12.9 x 4.0 " / 102 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.37
Metacentric height 1.6 ft / 0.5 m
Roll period: 10.8 seconds
Steadiness - As gun platform (Average = 50 %): 65 %
- Recoil effect (Restricted arc if above 1.00): 0.26
Seaboat quality (Average = 1.00): 1.30
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.414
Length to Beam Ratio: 9.70 : 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): 1.00 degrees
Stern overhang: 1.00 ft / 0.30 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (47 %): 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: 16.08 ft / 4.90 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 174.0 %
- Above water (accommodation/working, high = better): 112.0 %
Waterplane Area: 6,558 Square feet or 609 Square metres
Displacement factor (Displacement / loading): 69 %
Structure weight / hull surface area: 28 lbs/sq ft or 137 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.43
- Longitudinal: 2.82
- Overall: 0.52
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily
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, September 04, 2005
The Ger/DL/1914 design, based on the Sept. 9, 2001 drawing
I just tried the Ger/DL/1914 design, admittedly with light, high-power machinery, and it worked very well in Springsharp. The ship is 320ft x 33ft x 10ft, with a 1,250 ton normal displacement. The speed is a modest 32 knots and the armament is 4-4in QF guns, 6-21in TT in twin mounts, and there are 30 mines on rails at the stern. The ship has three funnels and is very German-looking with tubes in a well deck forward of the bridge. This is the Springsharp report:
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