środa, 29 sierpnia 2012

Krążownik liniowy Davout - 15.10.2010

Lekki krążownik liniowy dla Francji, wykorzystujący 12-calowe działa ze starych predrednotów.

Davout, french battlecruiser laid down 1922 (Engine 1924)

Displacement:
    17 724 t light; 18 394 t standard; 20 508 t normal; 22 198 t full load

Dimensions: Length overall / water x beam x draught
    679,02 ft / 664,37 ft x 79,40 ft x 24,61 ft (normal load)
    206,96 m / 202,50 m x 24,20 m  x 7,50 m

Armament:
      4 - 12,01" / 305 mm guns (2x2 guns), 865,70lbs / 392,68kg shells, 1922 Model
      Breech loading guns in turrets (on barbettes)
      on centreline ends, evenly spread
      12 - 6,10" / 155 mm guns (6x2 guns), 113,62lbs / 51,54kg shells, 1922 Model
      Quick firing guns in deck mounts with hoists
      on side, all amidships
      8 - 2,95" / 75,0 mm guns in single mounts, 12,87lbs / 5,84kg shells, 1922 Model
      Anti-aircraft guns in deck mounts
      on side, evenly spread
    Weight of broadside 4 929 lbs / 2 236 kg
    Shells per gun, main battery: 90

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    9,13" / 232 mm    387,80 ft / 118,20 m    11,15 ft / 3,40 m
    Ends:    Unarmoured
      Main Belt covers 90% of normal length
      Main belt does not fully cover magazines and engineering spaces

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    10,5" / 267 mm    6,69" / 170 mm        9,25" / 235 mm
    2nd:    1,57" / 40 mm          -                  -

   - Armour deck: 2,36" / 60 mm, Conning tower: 9,45" / 240 mm

Machinery:
    Oil fired boilers, steam turbines,
    Geared drive, 3 shafts, 169 469 shp / 126 424 Kw = 34,00 kts
    Range 7 500nm at 17,00 kts
    Bunker at max displacement = 3 804 tons

Complement:
    856 - 1 113

Cost:
    £5,235 million / $20,939 million

Distribution of weights at normal displacement:
    Armament: 616 tons, 3,0%
    Armour: 4 255 tons, 20,7%
       - Belts: 1 710 tons, 8,3%
       - Torpedo bulkhead: 0 tons, 0,0%
       - Armament: 779 tons, 3,8%
       - Armour Deck: 1 613 tons, 7,9%
       - Conning Tower: 153 tons, 0,7%
    Machinery: 5 582 tons, 27,2%
    Hull, fittings & equipment: 7 272 tons, 35,5%
    Fuel, ammunition & stores: 2 783 tons, 13,6%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      18 728 lbs / 8 495 Kg = 21,6 x 12,0 " / 305 mm shells or 1,9 torpedoes
    Stability (Unstable if below 1.00): 1,35
    Metacentric height 6,0 ft / 1,8 m
    Roll period: 13,6 seconds
    Steadiness    - As gun platform (Average = 50 %): 39 %
            - Recoil effect (Restricted arc if above 1.00): 0,28
    Seaboat quality  (Average = 1.00): 0,62

Hull form characteristics:
    Hull has raised forecastle
    Block coefficient: 0,553
    Length to Beam Ratio: 8,37 : 1
    'Natural speed' for length: 25,78 kts
    Power going to wave formation at top speed: 61 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): 20,20 degrees
    Stern overhang: 4,27 ft / 1,30 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        28,22 ft / 8,60 m
       - Forecastle (20%):    18,37 ft / 5,60 m (18,04 ft / 5,50 m aft of break)
       - Mid (50%):        18,04 ft / 5,50 m
       - Quarterdeck (15%):    18,04 ft / 5,50 m
       - Stern:        19,69 ft / 6,00 m
       - Average freeboard:    19,02 ft / 5,80 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 110,8%
        - Above water (accommodation/working, high = better): 148,2%
    Waterplane Area: 36 916 Square feet or 3 430 Square metres
    Displacement factor (Displacement / loading): 101%
    Structure weight / hull surface area: 137 lbs/sq ft or 667 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,99
        - Longitudinal: 1,13
        - Overall: 1,00
    Hull space for machinery, storage, compartmentation is adequate
    Room for accommodation and workspaces is excellent
    Caution: Lacks seaworthiness - very limited seakeeping ability

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