Ger/CS/1905 actual design, Germany Scout cruiser laid down 1905 (Engine 1950) Displacement: 2,537 t light; 2,609 t standard; 2,730 t normal; 2,826 t full load Dimensions: Length overall / water x beam x draught 370.44 ft / 370.00 ft x 38.00 ft x 15.00 ft (normal load) 112.91 m / 112.78 m x 11.58 m x 4.57 m Armament: 3 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1905 Model Quick firing guns in deck mounts with hoists on centreline ends, majority aft 2 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1905 Model Quick firing guns in deck mounts with hoists on side, all amidships Weight of broadside 160 lbs / 73 kg Shells per gun, main battery: 180 2 - 18.0" / 457.2 mm above water torpedoes Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 2.00" / 51 mm 260.00 ft / 79.25 m 8.00 ft / 2.44 m Ends: Unarmoured Upper: 2.00" / 51 mm 155.00 ft / 47.24 m 8.00 ft / 2.44 m Main Belt covers 108 % of normal length Main belt does not fully cover magazines and engineering spaces - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 2.00" / 51 mm - - 2nd: 2.00" / 51 mm - - - Conning tower: 2.00" / 51 mm Machinery: Oil fired boilers, steam turbines, Direct drive, 2 shafts, 76,844 shp / 57,326 Kw = 36.00 kts Range 2,650nm at 14.00 kts Bunker at max displacement = 217 tons Complement: 188 - 245 Cost: £0.318 million / $1.274 million Distribution of weights at normal displacement: Armament: 20 tons, 0.7 % Armour: 313 tons, 11.5 % - Belts: 283 tons, 10.4 % - Torpedo bulkhead: 0 tons, 0.0 % - Armament: 22 tons, 0.8 % - Armour Deck: 0 tons, 0.0 % - Conning Tower: 8 tons, 0.3 % Machinery: 1,520 tons, 55.7 % Hull, fittings & equipment: 684 tons, 25.1 % Fuel, ammunition & stores: 193 tons, 7.1 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 623 lbs / 282 Kg = 19.5 x 4.0 " / 102 mm shells or 0.3 torpedoes Stability (Unstable if below 1.00): 1.35 Metacentric height 2.0 ft / 0.6 m Roll period: 11.3 seconds Steadiness - As gun platform (Average = 50 %): 51 % - Recoil effect (Restricted arc if above 1.00): 0.17 Seaboat quality (Average = 1.00): 1.01 Hull form characteristics: Hull has rise forward of midbreak Block coefficient: 0.453 Length to Beam Ratio: 9.74 : 1 'Natural speed' for length: 19.24 kts Power going to wave formation at top speed: 72 % Trim (Max stability = 0, Max steadiness = 100): 50 Bow angle (Positive = bow angles forward): 1.00 degrees Stern overhang: -2.00 ft / -0.61 m Freeboard (% = measuring location as a percentage of overall length): - Stem: 25.00 ft / 7.62 m - Forecastle (20 %): 24.00 ft / 7.32 m - Mid (33 %): 24.00 ft / 7.32 m (16.00 ft / 4.88 m aft of break) - Quarterdeck (15 %): 16.00 ft / 4.88 m - Stern: 16.00 ft / 4.88 m - Average freeboard: 18.72 ft / 5.71 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 185.5 % - Above water (accommodation/working, high = better): 148.8 % Waterplane Area: 8,991 Square feet or 835 Square metres Displacement factor (Displacement / loading): 66 % Structure weight / hull surface area: 34 lbs/sq ft or 165 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.42 - Longitudinal: 2.68 - Overall: 0.51 Hull space for machinery, storage, compartmentation is cramped Room for accommodation and workspaces is excellent
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Saturday, July 16, 2005
The Ger/CS/1905 design I used in the game is challenging
When I try to make the actual Ger/CS/1905 design that I wanted to have produced in the game I played in the early 1970's, the challenge is to get something close that works in Springsharp. By "working", I mean having adequate strength and seakeeping ability, as well as stability. I wanted to use the planned armor plan, and that is what is the major challenge, because of strength and seakeeping considerations. I had to increase the draft from 13ft to 15ft, increase the freeboard, and increase the displacement from 2,480 tons to 2,730 tons. The range is miniscule, although probably better than the British Tribal class, which were contemporaries. This is the new Springsharp report:
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