Algerie class, French Heavy Cruiser laid down 1935
Displacement:
9,629 t light; 10,019 t standard; 11,921 t normal; 13,443 t full load
Dimensions: Length overall / water x beam x draught
649.14 ft / 636.48 ft x 56.76 ft (Bulges 63.98 ft) x 23.13 ft (normal load)
197.86 m / 194.00 m x 17.30 m (Bulges 19.50 m) x 7.05 m
Armament:
12 - 5.98" / 152 mm guns (4x3 guns), 110.23lbs / 50.00kg shells, 1935 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
2 - 3.94" / 100 mm guns (1x2 guns), 35.27lbs / 16.00kg shells, 1935 Model
Dual purpose guns in a deck mount with hoist
on centreline aft, all raised guns - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 35.27lbs / 16.00kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.89kg shells, 1935 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread
6 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1935 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 1,707 lbs / 774 kg
Shells per gun, main battery: 150
12 - 21.7" / 550 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 374.67 ft / 114.20 m 9.19 ft / 2.80 m
Ends: 0.98" / 25 mm 261.48 ft / 79.70 m 9.19 ft / 2.80 m
Upper: 0.98" / 25 mm 65.62 ft / 20.00 m 9.84 ft / 3.00 m
Main Belt covers 91 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.33" / 110 mm 2.76" / 70 mm 3.35" / 85 mm
2nd: 0.98" / 25 mm 0.20" / 5 mm -
3rd: 0.98" / 25 mm 0.20" / 5 mm -
4th: 0.98" / 25 mm 0.20" / 5 mm -
- Armour deck: 1.97" / 50 mm, Conning tower: 4.33" / 110 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 98,186 shp / 73,246 Kw = 34.00 kts
Range 2,800nm at 30.00 kts
Bunker at max displacement = 3,423 tons
Complement:
569 - 741
Cost:
£4.571 million / $18.285 million
Distribution of weights at normal displacement:
Armament: 203 tons, 1.7 %
Armour: 1,965 tons, 16.5 %
- Belts: 696 tons, 5.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 354 tons, 3.0 %
- Armour Deck: 867 tons, 7.3 %
- Conning Tower: 49 tons, 0.4 %
Machinery: 2,789 tons, 23.4 %
Hull, fittings & equipment: 4,582 tons, 38.4 %
Fuel, ammunition & stores: 2,292 tons, 19.2 %
Miscellaneous weights: 90 tons, 0.8 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,562 lbs / 6,605 Kg = 135.9 x 6.0 " / 152 mm shells or 1.9 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.8 ft / 0.9 m
Roll period: 16.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.38
Seaboat quality (Average = 1.00): 1.20
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.443
Length to Beam Ratio: 9.95 : 1
'Natural speed' for length: 29.01 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 34.78 ft / 10.60 m
- Forecastle (25 %): 24.44 ft / 7.45 m
- Mid (50 %): 24.44 ft / 7.45 m (14.60 ft / 4.45 m aft of break)
- Quarterdeck (15 %): 14.60 ft / 4.45 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 20.67 ft / 6.30 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 90.5 %
- Above water (accommodation/working, high = better): 113.0 %
Waterplane Area: 23,799 Square feet or 2,211 Square metres
Displacement factor (Displacement / loading): 129 %
Structure weight / hull surface area: 107 lbs/sq ft or 524 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.49
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
Breakdown of Miscellaneous Weights:
Aviation - 2 Seaplanes, 1 Catapult
Air search radar - 20 tons
Surface search radar- 20 tons
Notes:
10,000nm @ 18 kts
4,500nm @ 25 kts
2,800nm @ 30 kts
Ships in Class:
-
Algerie
-
Tunisie
-
Corse (ex-
Syrie)
-
Leban