środa, 29 sierpnia 2012

Mini-krążownik - 14.06.2010

Propozycja małego krążownika produkcji francuskiej dla PMW. Okręt inspirowany - nie ukrywam - chińskim Ning Hai..

Admirał Dickmann, Polska krążownik lekki laid down 1924 (Engine 1925)

Displacement:
    2 475 t light; 2 593 t standard; 2 764 t normal; 2 901 t full load

Dimensions: Length overall / water x beam x draught
    360,60 ft / 353,35 ft x 39,37 ft x 13,45 ft (normal load)
    109,91 m / 107,70 m x 12,00 m  x 4,10 m

Armament:
      6 - 6,10" / 155 mm guns (3x2 guns), 113,62lbs / 51,54kg shells, 1924 Model
      Quick firing guns in turrets (on barbettes)
      on centreline ends, majority forward
      4 - 2,95" / 75,0 mm guns in single mounts, 12,87lbs / 5,84kg shells, 1924 Model
      Anti-aircraft guns in deck mounts
      on side, all amidships
      6 - 0,52" / 13,2 mm guns in single mounts, 0,07lbs / 0,03kg shells, 1924 Model
      Machine guns in deck mounts
      on side, evenly spread
    Weight of broadside 734 lbs / 333 kg
    Shells per gun, main battery: 150
    4 - 21,7" / 550 mm submerged torpedo tubes

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    1,18" / 30 mm    150,92 ft / 46,00 m    11,48 ft / 3,50 m
    Ends:    0,98" / 25 mm      78,74 ft / 24,00 m    9,84 ft / 3,00 m
      123,69 ft / 37,70 m Unarmoured ends
      Main Belt covers 66% of normal length
      Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
        0,79" / 20 mm    229,66 ft / 70,00 m    10,50 ft / 3,20 m

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    1,57" / 40 mm    1,18" / 30 mm        1,18" / 30 mm

   - Armour deck: 1,18" / 30 mm, Conning tower: 2,95" / 75 mm

Machinery:
    Oil fired boilers, steam turbines,
    Geared drive, 3 shafts, 22 635 shp / 16 886 Kw = 26,50 kts
    Range 4 000nm at 12,50 kts
    Bunker at max displacement = 309 tons

Complement:
    189 - 247

Cost:
    £0,824 million / $3,295 million

Distribution of weights at normal displacement:
    Armament: 92 tons, 3,3%
    Armour: 477 tons, 17,2%
       - Belts: 121 tons, 4,4%
       - Torpedo bulkhead: 70 tons, 2,5%
       - Armament: 67 tons, 2,4%
       - Armour Deck: 206 tons, 7,4%
       - Conning Tower: 13 tons, 0,5%
    Machinery: 735 tons, 26,6%
    Hull, fittings & equipment: 1 171 tons, 42,4%
    Fuel, ammunition & stores: 289 tons, 10,5%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      2 142 lbs / 972 Kg = 18,9 x 6,1 " / 155 mm shells or 0,6 torpedoes
    Stability (Unstable if below 1.00): 1,17
    Metacentric height 1,7 ft / 0,5 m
    Roll period: 12,8 seconds
    Steadiness    - As gun platform (Average = 50 %): 50 %
            - Recoil effect (Restricted arc if above 1.00): 0,63
    Seaboat quality  (Average = 1.00): 1,00

Hull form characteristics:
    Hull has rise forward of midbreak
    Block coefficient: 0,517
    Length to Beam Ratio: 8,97 : 1
    'Natural speed' for length: 18,80 kts
    Power going to wave formation at top speed: 61 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): 18,00 degrees
    Stern overhang: 0,00 ft / 0,00 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        22,31 ft / 6,80 m
       - Forecastle (20%):    19,36 ft / 5,90 m
       - Mid (40%):        19,36 ft / 5,90 m (11,48 ft / 3,50 m aft of break)
       - Quarterdeck (15%):    11,48 ft / 3,50 m
       - Stern:        12,14 ft / 3,70 m
       - Average freeboard:    14,92 ft / 4,55 m

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 260,0%
        - Above water (accommodation/working, high = better): 131,9%
    Waterplane Area: 9 414 Square feet or 875 Square metres
    Displacement factor (Displacement / loading): 103%
    Structure weight / hull surface area: 72 lbs/sq ft or 349 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,92
        - Longitudinal: 2,03
        - Overall: 1,00
    Hull space for machinery, storage, compartmentation is extremely poor
    Room for accommodation and workspaces is excellent

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