GB/DD/1906, Great Britain Destroyer laid down 1906 (Engine 1908) Displacement: 774 t light; 795 t standard; 868 t normal; 927 t full load Dimensions: Length overall / water x beam x draught 266.66 ft / 265.00 ft x 27.00 ft x 9.00 ft (normal load) 81.28 m / 80.77 m x 8.23 m x 2.74 m Armament: 2 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1906 Model Quick firing guns in deck mounts on centreline ends, evenly spread, all raised mounts Weight of broadside 42 lbs / 19 kg Shells per gun, main battery: 150 2 - 21.0" / 533.4 mm above water torpedoes Machinery: Oil fired boilers, steam turbines, Direct drive, 2 shafts, 27,577 shp / 20,572 Kw = 32.00 kts Range 1,250nm at 15.00 kts Bunker at max displacement = 132 tons Caution: Delicate, lightweight machinery Complement: 79 - 103 Cost: £0.105 million / $0.420 million Distribution of weights at normal displacement: Armament: 5 tons, 0.6 % Machinery: 525 tons, 60.5 % Hull, fittings & equipment: 244 tons, 28.1 % Fuel, ammunition & stores: 94 tons, 10.9 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 208 lbs / 94 Kg = 10.0 x 3.5 " / 88 mm shells or 0.2 torpedoes Stability (Unstable if below 1.00): 1.53 Metacentric height 1.4 ft / 0.4 m Roll period: 9.4 seconds Steadiness - As gun platform (Average = 50 %): 45 % - Recoil effect (Restricted arc if above 1.00): 0.07 Seaboat quality (Average = 1.00): 0.82 Hull form characteristics: Hull has a flush deck Block coefficient: 0.472 Length to Beam Ratio: 9.81 : 1 'Natural speed' for length: 16.28 kts Power going to wave formation at top speed: 73 % Trim (Max stability = 0, Max steadiness = 100): 50 Bow angle (Positive = bow angles forward): 2.00 degrees Stern overhang: 1.00 ft / 0.30 m Freeboard (% = measuring location as a percentage of overall length): - Stem: 19.00 ft / 5.79 m - Forecastle (20 %): 18.00 ft / 5.49 m - Mid (30 %): 12.00 ft / 3.66 m - Quarterdeck (15 %): 12.00 ft / 3.66 m - Stern: 12.00 ft / 3.66 m - Average freeboard: 13.58 ft / 4.14 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 199.6 % - Above water (accommodation/working, high = better): 112.8 % Waterplane Area: 4,650 Square feet or 432 Square metres Displacement factor (Displacement / loading): 31 % Structure weight / hull surface area: 24 lbs/sq ft or 116 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.44 - Longitudinal: 2.93 - Overall: 0.53 Hull space for machinery, storage, compartmentation is cramped Room for accommodation and workspaces is adequate Poor seaboat, wet and uncomfortable, reduced performance in heavy weather
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Wednesday, January 05, 2005
The GB/DD/1906 destroyer design
Cliff's destroyer design, which he intended to mass-produce, works pretty well in Springsharp, except for being a bad seaboat. I'm not sure what to do, without some pretty drastic action. The "Performance" tab characterizes the design as "Design well balanced for a light fast combatant". This is the report:
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