Syjamski taranowiec - 13.10.2010

Witam po dłuższej przerwie. Dziś propozycja opancerzonego taranowca, dla Syjamu. Opancerzenie burtowe jednostki jest krótkie - pas ma 15 m i znajduje się w przedniej części kadłuba - tak by jak najlepiej chronić idący do taranowania okręt.

   

Mongkut, ram siamese laid down 1870 (Engine 1872)

Displacement:
    1 893 t light; 1 947 t standard; 2 064 t normal; 2 157 t full load

Dimensions: Length overall / water x beam x draught
    188,32 ft / 188,32 ft x 43,64 ft x 15,42 ft (normal load)
    57,40 m / 57,40 m x 13,30 m  x 4,70 m

Armament:
      1 - 9,21" / 234 mm guns in single mounts, 273,66lbs / 124,13kg shells, 1870 Model
      Breech loading gun in Coles/Ericsson turret
      on centreline forward
    Weight of broadside 274 lbs / 124 kg
    Shells per gun, main battery: 85

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    6,89" / 175 mm      49,21 ft / 15,00 m    6,89 ft / 2,10 m
    Ends:    Unarmoured
      Main Belt covers 40% of normal length
      Main belt does not fully cover magazines and engineering spaces

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    6,30" / 160 mm    2,76" / 70 mm              -

   - Armour deck: 1,57" / 40 mm, Conning tower: 4,13" / 105 mm

Machinery:
    Coal fired boilers, simple reciprocating steam engines,
    Direct drive, 1 shaft, 2 845 ihp / 2 122 Kw = 14,50 kts
    Range 2 200nm at 7,00 kts
    Bunker at max displacement = 210 tons (100% coal)

Complement:
    153 - 199

Cost:
    £0,189 million / $0,755 million

Distribution of weights at normal displacement:
    Armament: 34 tons, 1,7%
    Armour: 418 tons, 20,2%
       - Belts: 154 tons, 7,5%
       - Torpedo bulkhead: 0 tons, 0,0%
       - Armament: 83 tons, 4,0%
       - Armour Deck: 166 tons, 8,0%
       - Conning Tower: 14 tons, 0,7%
    Machinery: 670 tons, 32,5%
    Hull, fittings & equipment: 771 tons, 37,4%
    Fuel, ammunition & stores: 171 tons, 8,3%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      1 092 lbs / 495 Kg = 4,0 x 9,2 " / 234 mm shells or 0,4 torpedoes
    Stability (Unstable if below 1.00): 1,31
    Metacentric height 2,3 ft / 0,7 m
    Roll period: 12,0 seconds
    Steadiness    - As gun platform (Average = 50 %): 67 %
            - Recoil effect (Restricted arc if above 1.00): 0,15
    Seaboat quality  (Average = 1.00): 1,34

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,570
    Length to Beam Ratio: 4,32 : 1
    'Natural speed' for length: 13,72 kts
    Power going to wave formation at top speed: 58 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): -50,00 degrees
    Stern overhang: 0,00 ft / 0,00 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        10,50 ft / 3,20 m
       - Forecastle (20%):    10,50 ft / 3,20 m
       - Mid (50%):        10,50 ft / 3,20 m
       - Quarterdeck (15%):    10,50 ft / 3,20 m
       - Stern:        10,50 ft / 3,20 m
       - Average freeboard:    10,50 ft / 3,20 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 117,7%
        - Above water (accommodation/working, high = better): 74,3%
    Waterplane Area: 5 687 Square feet or 528 Square metres
    Displacement factor (Displacement / loading): 102%
    Structure weight / hull surface area: 90 lbs/sq ft or 438 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,87
        - Longitudinal: 3,80
        - Overall: 1,00
    Hull space for machinery, storage, compartmentation is cramped
    Room for accommodation and workspaces is cramped
    Good seaboat, rides out heavy weather easily