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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