Ger/CL/1914, Germany Light Cruiser laid down 1914 Displacement: 3,948 t light; 4,081 t standard; 4,286 t normal; 4,450 t full load Dimensions: Length overall / water x beam x draught 430.80 ft / 430.00 ft x 40.00 ft x 17.00 ft (normal load) 131.31 m / 131.06 m x 12.19 m x 5.18 m Armament: 9 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1914 Model Breech loading guns in deck mounts on side ends, majority forward, all raised mounts - superfiring Weight of broadside 563 lbs / 255 kg Shells per gun, main battery: 150 2 - 21.0" / 533.4 mm above water torpedoes Armour: - Armour deck: 2.00" / 51 mm, Conning tower: 4.00" / 102 mm Machinery: Oil fired boilers, steam turbines, Geared drive, 4 shafts, 50,376 shp / 37,580 Kw = 31.00 kts Range 2,950nm at 12.00 kts Bunker at max displacement = 368 tons Complement: 264 - 344 Cost: £0.590 million / $2.361 million Distribution of weights at normal displacement: Armament: 70 tons, 1.6 % Armour: 452 tons, 10.5 % - Belts: 0 tons, 0.0 % - Torpedo bulkhead: 0 tons, 0.0 % - Armament: 0 tons, 0.0 % - Armour Deck: 429 tons, 10.0 % - Conning Tower: 23 tons, 0.5 % Machinery: 1,904 tons, 44.4 % Hull, fittings & equipment: 1,522 tons, 35.5 % Fuel, ammunition & stores: 337 tons, 7.9 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 2,259 lbs / 1,024 Kg = 36.1 x 5.0 " / 127 mm shells or 0.5 torpedoes Stability (Unstable if below 1.00): 1.32 Metacentric height 2.1 ft / 0.6 m Roll period: 11.7 seconds Steadiness - As gun platform (Average = 50 %): 61 % - Recoil effect (Restricted arc if above 1.00): 0.29 Seaboat quality (Average = 1.00): 1.22 Hull form characteristics: Hull has rise forward of midbreak Block coefficient: 0.513 Length to Beam Ratio: 10.75 : 1 'Natural speed' for length: 20.74 kts Power going to wave formation at top speed: 62 % 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: 23.00 ft / 7.01 m - Forecastle (20 %): 20.00 ft / 6.10 m - Mid (35 %): 20.00 ft / 6.10 m (15.00 ft / 4.57 m aft of break) - Quarterdeck (15 %): 15.00 ft / 4.57 m - Stern: 15.00 ft / 4.57 m - Average freeboard: 16.99 ft / 5.18 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 156.2 % - Above water (accommodation/working, high = better): 124.3 % Waterplane Area: 11,597 Square feet or 1,077 Square metres Displacement factor (Displacement / loading): 88 % Structure weight / hull surface area: 66 lbs/sq ft or 323 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.90 - Longitudinal: 2.40 - Overall: 1.00 Hull space for machinery, storage, compartmentation is cramped Room for accommodation and workspaces is excellent Good seaboat, rides out heavy weather easily
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Saturday, January 22, 2005
My latest attempt at the Ger/CL/1914 (a2)
I found my drawing of the Ger/CL/1914 from 2002, and decided to try again at using Springsharp. The ship is 430ft x 40ft x 17ft, and was intended to make 32 knots. The armament was 9-5in QF guns and 2-21in TT. The ship has a raised forecastle (at 35% of the length) and has three uncased funnels. The foremast and mainmast are both poles, with a crow's nest on the foremast. The aft 5in guns are superfiring on my drawing. There are 3-5in guns on each side with the rest on the centerline. The ship is relatively fast and a good seaboat. This is the report:
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