Francuski krążownik ciężki St. Louis - 03.06.2010

Stosunkowo udana (a w swojej klasie – wręcz znakomita) konstrukcja krążownika ciężkiego Algerie skłoniła francuskich projektantów do opracowania ich powiększonego następcy, na którego charakterystykach nie kładłyby się cieniem traktatowe ograniczenia wyporności. Zaprojektowane okręty przy wyporności standardowej ok. 15.000 ton i uzbrojeniu w 9 dział 203 mm w trzech wieżach, charakteryzowały się wzmocnionym opancerzeniem i większą prędkością niż którykolwiek z krążowników ciężkich zaprojektowanych z zachowaniem 10.000-tonowego limitu wyporności.

  

źródło: http://www.secondeguerre.net/images/image.php?image=/images/articles/navires/fr/pr/st_louis.gif

Saint Louis, french heavy cruiser laid down 1940 (Engine 1942)

Displacement:
    13 868 t light; 14 470 t standard; 15 530 t normal; 16 378 t full load

Dimensions: Length overall / water x beam x draught
    662,75 ft / 645,67 ft x 65,62 ft x 21,98 ft (normal load)
    202,00 m / 196,80 m x 20,00 m  x 6,70 m

Armament:
      9 - 7,99" / 203 mm guns (3x3 guns), 255,24lbs / 115,77kg shells, 1940 Model
      Breech loading guns in turrets (on barbettes)
      on centreline ends, majority forward
      8 - 3,94" / 100 mm guns (4x2 guns), 30,51lbs / 13,84kg shells, 1940 Model
      Dual purpose guns in deck mounts with hoists
      on side, all amidships
      8 - 1,46" / 37,0 mm guns (4x2 guns), 1,55lbs / 0,70kg shells, 1940 Model
      Anti-aircraft guns in deck mounts
      on centreline, all amidships
      16 - 0,52" / 13,2 mm guns (4x4 guns), 0,07lbs / 0,03kg shells, 1940 Model
      Machine guns in deck mounts
      on side, evenly spread
    Weight of broadside 2 555 lbs / 1 159 kg
    Shells per gun, main battery: 200

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    8,27" / 210 mm    410,11 ft / 125,00 m    12,47 ft / 3,80 m
    Ends:    Unarmoured
      Main Belt covers 98% of normal length
      Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
        1,57" / 40 mm    442,91 ft / 135,00 m    18,04 ft / 5,50 m

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    7,87" / 200 mm    4,72" / 120 mm        7,09" / 180 mm
    2nd:    1,77" / 45 mm          -                  -

   - Armour deck: 2,44" / 62 mm, Conning tower: 7,28" / 185 mm

Machinery:
    Oil fired boilers, steam turbines plus diesel motors,
    Geared drive, 4 shafts, 142 746 shp / 106 488 Kw = 34,00 kts
    Range 8 000nm at 14,00 kts
    Bunker at max displacement = 1 908 tons

Complement:
    695 - 904

Cost:
    £7,654 million / $30,616 million

Distribution of weights at normal displacement:
    Armament: 319 tons, 2,1%
    Armour: 4 398 tons, 28,3%
       - Belts: 1 774 tons, 11,4%
       - Torpedo bulkhead: 466 tons, 3,0%
       - Armament: 682 tons, 4,4%
       - Armour Deck: 1 378 tons, 8,9%
       - Conning Tower: 98 tons, 0,6%
    Machinery: 3 729 tons, 24,0%
    Hull, fittings & equipment: 5 421 tons, 34,9%
    Fuel, ammunition & stores: 1 662 tons, 10,7%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      18 885 lbs / 8 566 Kg = 74,0 x 8,0 " / 203 mm shells or 2,5 torpedoes
    Stability (Unstable if below 1.00): 1,24
    Metacentric height 3,9 ft / 1,2 m
    Roll period: 13,9 seconds
    Steadiness    - As gun platform (Average = 50 %): 43 %
            - Recoil effect (Restricted arc if above 1.00): 0,34
    Seaboat quality  (Average = 1.00): 0,74

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,584
    Length to Beam Ratio: 9,84 : 1
    'Natural speed' for length: 25,41 kts
    Power going to wave formation at top speed: 60 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): 19,60 degrees
    Stern overhang: 6,56 ft / 2,00 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        29,53 ft / 9,00 m
       - Forecastle (22%):    21,00 ft / 6,40 m
       - Mid (50%):        18,70 ft / 5,70 m
       - Quarterdeck (20%):    18,70 ft / 5,70 m
       - Stern:        20,01 ft / 6,10 m
       - Average freeboard:    20,41 ft / 6,22 m

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 136,3%
        - Above water (accommodation/working, high = better): 161,0%
    Waterplane Area: 30 516 Square feet or 2 835 Square metres
    Displacement factor (Displacement / loading): 108%
    Structure weight / hull surface area: 115 lbs/sq ft or 561 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,99
        - Longitudinal: 1,09
        - Overall: 1,00
    Hull space for machinery, storage, compartmentation is cramped
    Room for accommodation and workspaces is excellent
    Poor seaboat, wet and uncomfortable, reduced performance in heavy weather