F/CA/1919, France Armoured Cruiser laid down 1919 (Engine 1933)
Displacement:
22,380 t light; 23,144 t standard; 24,369 t normal; 25,350 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(733.50 ft / 729.00 ft) x 80.00 ft x (25.00 / 25.82 ft)
(223.57 m / 222.20 m) x 24.38 m x (7.62 / 7.87 m)
Armament:
6 - 11.00" / 279 mm 45.0 cal guns - 670.00lbs / 303.91kg shells, 90 per gun
Breech loading guns in turret on barbette mounts, 1919 Model
2 x Triple mounts on centreline, forward deck forward
1 raised mount - superfiring
8 - 6.00" / 152 mm 45.0 cal guns - 100.00lbs / 45.36kg shells, 150 per gun
Quick firing guns in deck and hoist mounts, 1919 Model
4 x Twin mounts on sides, aft deck forward
Weight of broadside 4,820 lbs / 2,186 kg
6 - 21.0" / 533 mm, 22.00 ft / 6.71 m torpedoes - 1.417 t each, 8.503 t total
In 2 sets of deck mounted side rotating tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 8.00" / 203 mm 370.00 ft / 112.78 m 8.00 ft / 2.44 m
Ends: Unarmoured
Main Belt covers 78 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead:
1.00" / 25 mm 370.00 ft / 112.78 m 25.00 ft / 7.62 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.0" / 254 mm 7.00" / 178 mm 10.0" / 254 mm
2nd: 4.00" / 102 mm 3.00" / 76 mm 4.00" / 102 mm
- Armoured deck - multiple decks: 4.00" / 102 mm For and Aft decks
Forecastle: 4.00" / 102 mm Quarter deck: 4.00" / 102 mm
- Conning towers: Forward 8.00" / 203 mm, Aft 0.00" / 0 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 204,178 shp / 152,317 Kw = 35.00 kts
Range 5,400nm at 15.00 kts
Bunker at max displacement = 2,206 tons
Complement:
974 - 1,267
Cost:
£4.527 million / $18.106 million
Distribution of weights at normal displacement:
Armament: 927 tons, 3.8 %
- Guns: 918 tons, 3.8 %
- Torpedoes: 9 tons, 0.0 %
Armour: 5,951 tons, 24.4 %
- Belts: 1,032 tons, 4.2 %
- Torpedo bulkhead: 342 tons, 1.4 %
- Armament: 1,298 tons, 5.3 %
- Armour Deck: 3,134 tons, 12.9 %
- Conning Tower: 145 tons, 0.6 %
Machinery: 5,949 tons, 24.4 %
Hull, fittings & equipment: 9,554 tons, 39.2 %
Fuel, ammunition & stores: 1,989 tons, 8.2 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
32,486 lbs / 14,735 Kg = 48.8 x 11.0 " / 279 mm shells or 3.5 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 4.4 ft / 1.3 m
Roll period: 16.0 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.61
Seaboat quality (Average = 1.00): 1.07
Hull form characteristics:
Hull has low quarterdeck ,
an extended bulbous bow and a cruiser stern
Block coefficient (normal/deep): 0.585 / 0.589
Length to Beam Ratio: 9.11 : 1
'Natural speed' for length: 27.00 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 8.00 degrees
Stern overhang: -2.00 ft / -0.61 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 32.00 ft / 9.75 m, 30.00 ft / 9.14 m
- Forward deck: 30.00 %, 30.00 ft / 9.14 m, 29.00 ft / 8.84 m
- Aft deck: 23.00 %, 29.00 ft / 8.84 m, 29.00 ft / 8.84 m
- Quarter deck: 27.00 %, 21.00 ft / 6.40 m, 21.00 ft / 6.40 m
- Average freeboard: 27.35 ft / 8.34 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 128.6 %
- Above water (accommodation/working, high = better): 238.1 %
Waterplane Area: 42,060 Square feet or 3,907 Square metres
Displacement factor (Displacement / loading): 110 %
Structure weight / hull surface area: 150 lbs/sq ft or 733 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.56
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Amazon Ad
Tuesday, October 30, 2007
The F/CA/1919 design with 11in guns
Perhaps for realism, the F/CA/1919 design should have 10.8in guns, but it has 11in guns, instead. Back in the early 1970's, having a version of the fast belted cruiser with 11in guns seemed like the next logical step. The secondary armament grew to 8-6in guns. The speed is now 35 knots, so it is a very potent design:
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