piątek, 8 listopada 2013

Flota polska w XIX w. - monitor dwuwieżowy



A dziś taki sobie monitor:-) Bez specjalnego uzasadnienia taktycznego – po prostu zachciało mi się zafundować naszej flocie okręt z diagonalnym ustawieniem artylerii, do którego to sposobu jej rozmieszczenia mam pewną słabość. Powiedzmy że ma to być uzupełnienie trójki starszych monitorów z lat 60-tych.. (prezentowanych w poście z 01.10.2013 r.).

Połąga, polish monitor laid down 1873

Displacement:
    1 661 t light; 1 733 t standard; 1 801 t normal; 1 854 t full load

Dimensions: Length overall / water x beam x draught
    213,81 ft / 213,81 ft x 49,41 ft x 10,93 ft (normal load)
    65,17 m / 65,17 m x 15,06 m  x 3,33 m

Armament:
      4 - 7,99" / 203 mm guns (2x2 guns), 190,16lbs / 86,26kg shells, 1873 Model
      Breech loading guns in Coles/Ericsson turrets
      on side, all amidships
    Weight of broadside 761 lbs / 345 kg
    Shells per gun, main battery: 85

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    5,98" / 152 mm    157,22 ft / 47,92 m    4,49 ft / 1,37 m
    Ends:    3,50" / 89 mm      56,04 ft / 17,08 m    4,49 ft / 1,37 m
      0,56 ft / 0,17 m Unarmoured ends
      Main Belt covers 113% of normal length

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    11,0" / 279 mm    7,52" / 191 mm              -

   - Armour deck: 0,98" / 25 mm, Conning tower: 10,98" / 279 mm

Machinery:
    Coal fired boilers, simple reciprocating steam engines,
    Direct drive, 1 shaft, 712 ihp / 531 Kw = 10,40 kts
    Range 1 300nm at 7,00 kts
    Bunker at max displacement = 121 tons (100% coal)

Complement:
    137 - 179

Cost:
    £0,161 million / $0,644 million

Distribution of weights at normal displacement:
    Armament: 95 tons, 5,3%
    Armour: 566 tons, 31,4%
       - Belts: 217 tons, 12,1%
       - Torpedo bulkhead: 0 tons, 0,0%
       - Armament: 184 tons, 10,2%
       - Armour Deck: 130 tons, 7,2%
       - Conning Tower: 35 tons, 1,9%
    Machinery: 164 tons, 9,1%
    Hull, fittings & equipment: 836 tons, 46,4%
    Fuel, ammunition & stores: 139 tons, 7,7%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      1 537 lbs / 697 Kg = 8,1 x 8,0 " / 203 mm shells or 0,8 torpedoes
    Stability (Unstable if below 1.00): 1,40
    Metacentric height 3,1 ft / 1,0 m
    Roll period: 11,7 seconds
    Steadiness    - As gun platform (Average = 50 %): 25 %
            - Recoil effect (Restricted arc if above 1.00): 0,06
    Seaboat quality  (Average = 1.00): 0,25

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,546
    Length to Beam Ratio: 4,33 : 1
    'Natural speed' for length: 14,62 kts
    Power going to wave formation at top speed: 34 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    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:        3,02 ft / 0,92 m
       - Forecastle (23%):    3,02 ft / 0,92 m
       - Mid (50%):        3,02 ft / 0,92 m
       - Quarterdeck (20%):    3,02 ft / 0,92 m
       - Stern:        3,02 ft / 0,92 m
       - Average freeboard:    3,02 ft / 0,92 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 69,4%
        - Above water (accommodation/working, high = better): 29,9%
    Waterplane Area: 7 119 Square feet or 661 Square metres
    Displacement factor (Displacement / loading): 109%
    Structure weight / hull surface area: 103 lbs/sq ft or 504 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 1,01
        - Longitudinal: 1,00
        - Overall: 1,00
    Hull space for machinery, storage, compartmentation is excellent
    Room for accommodation and workspaces is extremely poor
    Ship has quick, lively roll, not a steady gun platform
    Caution: Lacks seaworthiness - very limited seakeeping ability
 

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