Duquesene class, French heavy Cruiser laid down 1926
Displacement: 9,683 t light; 10,154 t standard; 11,917 t normal; 13,328 t full load
Dimensions: Length
overall / water x beam x draught 616.80 ft / 616.80 ft x 61.68 ft x 22.38 ft (normal load) 188.00 m / 188.00 m x 18.80
m x 6.82 m
Armament: 9 - 7.87" / 200 mm guns (3x3 guns), 242.51lbs / 110.00kg shells, 1926 Model Breech loading
guns in turrets (on barbettes) on centreline ends, majority forward, 1 raised mount - superfiring 12 - 3.94" / 100
mm guns (6x2 guns), 35.27lbs / 16.00kg shells, 1926 Model Dual purpose guns in deck mounts on side, all amidships
24 - 1.57" / 40.0 mm guns (8x3 guns), 1.95lbs / 0.89kg shells, 1926 Model Anti-aircraft guns in deck mounts on
side, evenly spread Weight of broadside 2,653 lbs / 1,203 kg Shells per gun, main battery: 150
Aviation: 2
Seaplanes, 1 Catapult
Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 3.54" / 90 mm 451.61 ft
/ 137.65 m 9.51 ft / 2.90 m Ends: Unarmoured Main Belt covers 113 % of normal length
- Gun armour: Face (max)
Other gunhouse (avg) Barbette/hoist (max) Main: 4.72" / 120 mm 1.97" / 50 mm 3.15" / 80 mm 2nd: 0.98" / 25 mm 0.20"
/ 5 mm - 3rd: 0.98" / 25 mm - -
- Armour deck: 0.98" / 25 mm, Conning tower: 3.94" / 100 mm
Machinery:
Oil fired boilers, steam turbines, Geared drive, 4 shafts, 104,210 shp / 77,740 Kw = 33.00 kts Range 12,000nm
at 15.00 kts (Bunkerage = 3,174 tons)
Complement: 569 - 741
Cost: £3.731 million / $14.923 million
Distribution of weights at normal displacement: Armament: 326 tons, 2.7 % Armour: 1,449 tons, 12.2 % -
Belts: 622 tons, 5.2 % - Torpedo bulkhead: 0 tons, 0.0 % - Armament: 325 tons, 2.7 % - Armour Deck: 457 tons,
3.8 % - Conning Tower: 44 tons, 0.4 % Machinery: 3,336 tons, 28.0 % Hull, fittings & equipment: 4,522 tons,
37.9 % Fuel, ammunition & stores: 2,234 tons, 18.7 % Miscellaneous weights: 50 tons, 0.4 %
Overall survivability
and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 10,217 lbs / 4,634 Kg =
41.9 x 7.9 " / 200 mm shells or 1.4 torpedoes Stability (Unstable if below 1.00): 1.11 Metacentric height 3.0 ft /
0.9 m Roll period: 15.0 seconds Steadiness - As gun platform (Average = 50 %): 70 % - Recoil effect (Restricted
arc if above 1.00): 0.59 Seaboat quality (Average = 1.00): 1.00
Hull form characteristics: Hull has a flush
deck Block coefficient: 0.490 Length to Beam Ratio: 10.00 : 1 'Natural speed' for length: 24.84 kts Power
going to wave formation at top speed: 56 % Trim (Max stability = 0, Max steadiness = 100): 70 Bow angle (Positive
= bow angles forward): 0.00 degrees Stern overhang: 0.00 ft / 0.00 m Freeboard (% = measuring location as a percentage
of overall length): - Stem: 29.53 ft / 9.00 m - Forecastle (20 %): 21.00 ft / 6.40 m - Mid (50 %): 16.73 ft /
5.10 m - Quarterdeck (15 %): 16.73 ft / 5.10 m - Stern: 16.40 ft / 5.00 m - Average freeboard: 18.88 ft / 5.76
m
Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 112.6 % -
Above water (accommodation/working, high = better): 149.0 % Waterplane Area: 25,120 Square feet or 2,334 Square metres
Displacement factor (Displacement / loading): 111 % Structure weight / hull surface area: 112 lbs/sq ft or 546 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 Ship has slow,
easy roll, a good, steady gun platform
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