środa, 29 sierpnia 2012

Krążownik pancerny Pierieswiet - 05.04.2011

Niniejszy okręt to zmodernizowany Riurik - pomysł wziąłem z forum tsushima.su (stamtąd też pochodzi poniższa grafika). Okręt został powiększony, zwiększyła się liczba artylerii 10- i 8-calowej, pogrubiony został pancerz oraz nieco wzrosła prędkość. Powstały okręt byłby zdecydowanie najsilniejszy w swojej klasie, ale jednocześnie - byłby też jej epigonem - jako że równocześnie budowano już krążowniki liniowe, które wkrótce wyparły krążowniki pancerne. Choć akurat taki okręt, w starciu z krążownikiem liniowym niekoniecznie musiałby stać na straconej pozycji..

  

Pierieswiet, russian armoured cruiser laid down 1908 (Engine 1909)


Displacement:
    16 478 t light; 17 308 t standard; 18 800 t normal; 19 994 t full load

Dimensions: Length overall / water x beam x draught
    601,35 ft / 599,70 ft x 77,79 ft x 26,87 ft (normal load)
    183,29 m / 182,79 m x 23,71 m  x 8,19 m

Armament:
      8 - 10,00" / 254 mm guns (4x2 guns), 500,00lbs / 226,80kg shells, 1908 Model
      Breech loading guns in turrets (on barbettes)
      on centreline ends, evenly spread
      12 - 7,99" / 203 mm guns (6x2 guns), 255,24lbs / 115,78kg shells, 1908 Model
      Breech loading guns in turrets (on barbettes)
      on side ends, evenly spread
      20 - 5,12" / 130 mm guns in single mounts, 67,03lbs / 30,41kg shells, 1908 Model
      Quick firing guns in casemate mounts
      on side, evenly spread
      6 - 1,85" / 47,0 mm guns in single mounts, 3,17lbs / 1,44kg shells, 1908 Model
      Quick firing guns in deck mounts
      on side, all amidships
      8 - 0,30" / 7,6 mm guns in single mounts, 0,01lbs / 0,01kg shells, 1908 Model
      Machine guns in deck mounts
      on side, evenly spread
    Weight of broadside 8 423 lbs / 3 820 kg
    Shells per gun, main battery: 90
    2 - 18,0" / 457 mm submerged torpedo tubes

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    9,02" / 229 mm    380,18 ft / 115,88 m    12,50 ft / 3,81 m
    Ends:    4,72" / 120 mm    219,46 ft / 66,89 m    12,50 ft / 3,81 m
    Upper:    4,49" / 114 mm    207,05 ft / 63,11 m    9,42 ft / 2,87 m
      Main Belt covers 98% of normal length
      Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
        1,46" / 37 mm    380,18 ft / 115,88 m    25,00 ft / 7,62 m

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    10,0" / 254 mm    5,51" / 140 mm        8,50" / 216 mm
    2nd:    7,01" / 178 mm    4,02" / 102 mm        5,98" / 152 mm
    3rd:    2,99" / 76 mm          -                  -

   - Armour deck: 1,85" / 47 mm, Conning tower: 9,45" / 240 mm

Machinery:
    Coal and oil fired boilers, steam turbines,
    Direct drive, 4 shafts, 38 959 shp / 29 064 Kw = 23,60 kts
    Range 4 000nm at 14,00 kts
    Bunker at max displacement = 2 686 tons (85% coal)

Complement:
    802 - 1 043

Cost:
    £1,730 million / $6,919 million

Distribution of weights at normal displacement:
    Armament: 1 053 tons, 5,6%
    Armour: 6 328 tons, 33,7%
       - Belts: 2 751 tons, 14,6%
       - Torpedo bulkhead: 512 tons, 2,7%
       - Armament: 1 832 tons, 9,7%
       - Armour Deck: 1 089 tons, 5,8%
       - Conning Tower: 144 tons, 0,8%
    Machinery: 1 919 tons, 10,2%
    Hull, fittings & equipment: 7 178 tons, 38,2%
    Fuel, ammunition & stores: 2 322 tons, 12,4%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      24 456 lbs / 11 093 Kg = 48,9 x 10,0 " / 254 mm shells or 3,9 torpedoes
    Stability (Unstable if below 1.00): 1,08
    Metacentric height 4,0 ft / 1,2 m
    Roll period: 16,4 seconds
    Steadiness    - As gun platform (Average = 50 %): 75 %
            - Recoil effect (Restricted arc if above 1.00): 0,84
    Seaboat quality  (Average = 1.00): 1,50

Hull form characteristics:
    Hull has rise forward of midbreak, raised quarterdeck
    Block coefficient: 0,525
    Length to Beam Ratio: 7,71 : 1
    'Natural speed' for length: 24,49 kts
    Power going to wave formation at top speed: 44 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): -8,00 degrees
    Stern overhang: 1,64 ft / 0,50 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        29,23 ft / 8,91 m
       - Forecastle (22%):    24,18 ft / 7,37 m
       - Mid (62%):        24,18 ft / 7,37 m (17,16 ft / 5,23 m aft of break)
       - Quarterdeck (18%):    17,16 ft / 5,23 m (0,00 ft / 0,00 m before break)
       - Stern:        17,16 ft / 5,23 m
       - Average freeboard:    20,26 ft / 6,17 m

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 103,1%
        - Above water (accommodation/working, high = better): 143,6%
    Waterplane Area: 31 803 Square feet or 2 955 Square metres
    Displacement factor (Displacement / loading): 101%
    Structure weight / hull surface area: 149 lbs/sq ft or 727 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,96
        - Longitudinal: 1,48
        - Overall: 1,00
    Hull space for machinery, storage, compartmentation is adequate
    Room for accommodation and workspaces is excellent
    Ship has slow, easy roll, a good, steady gun platform
    Good seaboat, rides out heavy weather easily

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