F/CA/1918, France Cruiser laid down 1918 (Engine 1922) Displacement: 11,584 t light; 11,989 t standard; 12,900 t normal; 13,629 t full load Dimensions: Length overall / water x beam x draught 619.10 ft / 615.00 ft x 62.00 ft x 20.00 ft (normal load) 188.70 m / 187.45 m x 18.90 m x 6.10 m Armament: 8 - 7.68" / 195 mm guns (4x2 guns), 226.24lbs / 102.62kg shells, 1918 Model Breech loading guns in turrets (on barbettes) on centreline, evenly spread, 2 raised mounts Aft Main mounts separated by engine room 8 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.41kg shells, 1918 Model Quick firing guns in deck mounts with hoists on side, all amidships 4 - 3.54" / 90.0 mm guns in single mounts, 22.24lbs / 10.09kg shells, 1918 Model Anti-aircraft guns in deck mounts on side, all amidships, 2 raised mounts - superfiring 16 - 1.85" / 47.0 mm guns in single mounts, 3.17lbs / 1.44kg shells, 1918 Model Anti-aircraft guns in deck mounts on side, evenly spread, 8 raised mounts Weight of broadside 2,486 lbs / 1,128 kg Shells per gun, main battery: 100 4 - 21.7" / 549.9999 mm above water torpedoes Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 4.00" / 102 mm 400.00 ft / 121.92 m 12.00 ft / 3.66 m Ends: 3.00" / 76 mm 175.00 ft / 53.34 m 10.00 ft / 3.05 m 40.00 ft / 12.19 m Unarmoured ends Main Belt covers 100 % of normal length Main belt does not fully cover magazines and engineering spaces - Torpedo Bulkhead: 1.00" / 25 mm 400.00 ft / 121.92 m 18.00 ft / 5.49 m - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 4.00" / 102 mm 3.00" / 76 mm 4.00" / 102 mm 2nd: 2.00" / 51 mm 2.00" / 51 mm 2.00" / 51 mm - Armour deck: 2.00" / 51 mm, Conning tower: 4.00" / 102 mm Machinery: Oil fired boilers, steam turbines, Geared drive, 4 shafts, 101,743 shp / 75,901 Kw = 32.00 kts Range 5,400nm at 15.00 kts Bunker at max displacement = 1,640 tons Complement: 604 - 786 Cost: £2.299 million / $9.197 million Distribution of weights at normal displacement: Armament: 311 tons, 2.4 % Armour: 2,846 tons, 22.1 % - Belts: 997 tons, 7.7 % - Torpedo bulkhead: 266 tons, 2.1 % - Armament: 511 tons, 4.0 % - Armour Deck: 1,024 tons, 7.9 % - Conning Tower: 47 tons, 0.4 % Machinery: 3,451 tons, 26.8 % Hull, fittings & equipment: 4,976 tons, 38.6 % Fuel, ammunition & stores: 1,316 tons, 10.2 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 14,776 lbs / 6,702 Kg = 65.3 x 7.7 " / 195 mm shells or 1.9 torpedoes Stability (Unstable if below 1.00): 1.18 Metacentric height 3.3 ft / 1.0 m Roll period: 14.3 seconds Steadiness - As gun platform (Average = 50 %): 52 % - Recoil effect (Restricted arc if above 1.00): 0.59 Seaboat quality (Average = 1.00): 1.04 Hull form characteristics: Hull has rise forward of midbreak Block coefficient: 0.592 Length to Beam Ratio: 9.92 : 1 'Natural speed' for length: 24.80 kts Power going to wave formation at top speed: 58 % Trim (Max stability = 0, Max steadiness = 100): 50 Bow angle (Positive = bow angles forward): 4.00 degrees Stern overhang: 2.00 ft / 0.61 m Freeboard (% = measuring location as a percentage of overall length): - Stem: 30.00 ft / 9.14 m - Forecastle (20 %): 24.00 ft / 7.32 m - Mid (67 %): 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: 21.84 ft / 6.66 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 155.2 % - Above water (accommodation/working, high = better): 175.6 % Waterplane Area: 27,681 Square feet or 2,572 Square metres Displacement factor (Displacement / loading): 105 % Structure weight / hull surface area: 112 lbs/sq ft or 547 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.97 - Longitudinal: 1.27 - Overall: 1.00 Hull space for machinery, storage, compartmentation is cramped Room for accommodation and workspaces is excellent
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Thursday, March 30, 2006
The F/CA/1918 is a much more modern design
The F/CA/1918, with four twin 7.6in (19.5cm) gun turrets is a much more modern design than its predecessor. The secondary armament is reduced in caliber to 5.1in guns (13cm). The ship has a torpedo armament, as well. The speed is increased to 32 knots, a modern minimum. This is the Springsharp report:
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