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Tuesday, May 24, 2005

My latest attempt at Colonel Cuniberti's battleship is a failure

I thought that employing some of the methods that I saw in The Red Admiral's X4 design would help Colonel Cuniberti's Ideal Battleship work in Springsharp, but I failed miserably. My design is too large for what was reasonable:
Ideal Battleship, Great Britain Enter ship type laid down 1904 Displacement: 25,462 t light; 26,497 t standard; 28,450 t normal; 30,013 t full load Dimensions: Length overall / water x beam x draught 544.00 ft / 542.00 ft x 96.00 ft x 30.00 ft (normal load) 165.81 m / 165.20 m x 29.26 m x 9.14 m Armament: 4 - 12.00" / 305 mm guns (2x2 guns), 864.00lbs / 391.90kg shells, 1904 Model Breech loading guns in turrets (on barbettes) on centreline ends, evenly spread, all raised mounts 4 - 12.00" / 305 mm guns in single mounts, 864.00lbs / 391.90kg shells, 1904 Model Breech loading guns in turrets (on barbettes) on side, evenly spread, all raised mounts 4 - 12.00" / 305 mm guns (2x2 guns), 864.00lbs / 391.90kg shells, 1904 Model Breech loading guns in turrets (on barbettes) on side, all amidships, all raised mounts - superfiring 12 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1904 Model Quick firing guns in casemate mounts on side, evenly spread 12 guns in hull casemates - Limited use in heavy seas 6 - 1.85" / 47.0 mm guns in single mounts, 3.17lbs / 1.44kg shells, 1904 Model Breech loading guns in deck mounts on side, evenly spread, all raised mounts Weight of broadside 10,549 lbs / 4,785 kg Shells per gun, main battery: 75 Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 9.00" / 229 mm 380.00 ft / 115.82 m 8.00 ft / 2.44 m Ends: 6.00" / 152 mm 141.50 ft / 43.13 m 8.00 ft / 2.44 m 20.50 ft / 6.25 m Unarmoured ends Upper: 5.00" / 127 mm 280.00 ft / 85.34 m 8.00 ft / 2.44 m Main Belt covers 108 % of normal length Main belt does not fully cover magazines and engineering spaces - Torpedo Bulkhead: 1.00" / 25 mm 380.00 ft / 115.82 m 24.00 ft / 7.32 m - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 9.00" / 229 mm 6.00" / 152 mm 9.00" / 229 mm 2nd: 9.00" / 229 mm 6.00" / 152 mm 9.00" / 229 mm 3rd: 9.00" / 229 mm 6.00" / 152 mm 9.00" / 229 mm 4th: 2.00" / 51 mm - - - Armour deck: 2.00" / 51 mm, Conning tower: 7.00" / 178 mm Machinery: Coal fired boilers, steam turbines, Direct drive, 4 shafts, 60,214 shp / 44,920 Kw = 24.00 kts Range 4,000nm at 12.00 kts Bunker at max displacement = 3,516 tons (100% coal) Complement: 1,094 - 1,423 Cost: £2.842 million / $11.367 million Distribution of weights at normal displacement: Armament: 1,319 tons, 4.6 % Armour: 6,930 tons, 24.4 % - Belts: 1,976 tons, 6.9 % - Torpedo bulkhead: 337 tons, 1.2 % - Armament: 3,017 tons, 10.6 % - Armour Deck: 1,458 tons, 5.1 % - Conning Tower: 141 tons, 0.5 % Machinery: 6,021 tons, 21.2 % Hull, fittings & equipment: 11,192 tons, 39.3 % Fuel, ammunition & stores: 2,988 tons, 10.5 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 26,264 lbs / 11,913 Kg = 30.4 x 12.0 " / 305 mm shells or 3.4 torpedoes Stability (Unstable if below 1.00): 1.01 Metacentric height 4.8 ft / 1.4 m Roll period: 18.5 seconds Steadiness - As gun platform (Average = 50 %): 54 % - Recoil effect (Restricted arc if above 1.00): 0.78 Seaboat quality (Average = 1.00): 1.08 Hull form characteristics: Hull has rise forward of midbreak Block coefficient: 0.638 Length to Beam Ratio: 5.65 : 1 'Natural speed' for length: 23.28 kts Power going to wave formation at top speed: 56 % 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: 26.00 ft / 7.92 m - Forecastle (20 %): 26.00 ft / 7.92 m - Mid (67 %): 26.00 ft / 7.92 m (18.00 ft / 5.49 m aft of break) - Quarterdeck (18 %): 18.00 ft / 5.49 m - Stern: 18.00 ft / 5.49 m - Average freeboard: 23.36 ft / 7.12 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 130.1 % - Above water (accommodation/working, high = better): 165.2 % Waterplane Area: 39,419 Square feet or 3,662 Square metres Displacement factor (Displacement / loading): 96 % Structure weight / hull surface area: 200 lbs/sq ft or 975 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.93 - Longitudinal: 1.96 - Overall: 1.00 Hull space for machinery, storage, compartmentation is cramped Room for accommodation and workspaces is excellent

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