Pancernik Montana (BB-67) - 29.08.2010

Oto moja symulacja w springsharpie niezbudowanego amerykańskiego pancernika Montana. Podstawą był zatwierdzony do realizacji projekt BB 67-4A4. Wygląda na to, że byłby to co najmniej równorzędny przeciwnik dla japońskiego Yamato (choć moim skromnym zdaniem już Iowa powinna sobie z nim dać radę).

  
Montana, U.S. battleship laid down 1944 (Engine 1945)

Displacement:
    57 737 t light; 60 513 t standard; 65 804 t normal; 70 038 t full load

Dimensions: Length overall / water x beam x draught
    924,86 ft / 889,76 ft x 116,14 ft x 35,43 ft (normal load)
    281,90 m / 271,20 m x 35,40 m  x 10,80 m

Armament:
      12 - 15,98" / 406 mm guns (4x3 guns), 2 041,96lbs / 926,22kg shells, 1944 Model
      Breech loading guns in turrets (on barbettes)
      on centreline ends, evenly spread
      20 - 5,00" / 127 mm guns (10x2 guns), 62,50lbs / 28,35kg shells, 1944 Model
      Dual purpose guns in turrets (on barbettes)
      on side, all amidships
      76 - 1,57" / 40,0 mm guns (19x4 guns), 1,95lbs / 0,88kg shells, 1944 Model
      Anti-aircraft guns in deck mounts
      on side, evenly spread
      46 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1944 Model
      Anti-aircraft guns in deck mounts
      on side, evenly spread
    Weight of broadside 25 913 lbs / 11 754 kg
    Shells per gun, main battery: 100

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    16,1" / 409 mm    514,11 ft / 156,70 m    16,90 ft / 5,15 m
    Ends:    Unarmoured
      Main Belt covers 89% of normal length

   - Torpedo Bulkhead:
        4,09" / 104 mm    859,58 ft / 262,00 m    31,17 ft / 9,50 m

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    18,0" / 457 mm    10,0" / 254 mm        21,3" / 541 mm
    2nd:    0,75" / 19 mm    0,75" / 19 mm        1,77" / 45 mm

   - Armour deck: 7,17" / 182 mm, Conning tower: 17,99" / 457 mm

Machinery:
    Oil fired boilers, steam turbines,
    Geared drive, 3 shafts, 149 645 shp / 111 636 Kw = 28,00 kts
    Range 15 000nm at 15,00 kts
    Bunker at max displacement = 9 525 tons

Complement:
    2 053 - 2 670

Cost:
    £35,458 million / $141,831 million

Distribution of weights at normal displacement:
    Armament: 3 239 tons, 4,9%
    Armour: 26 754 tons, 40,7%
       - Belts: 6 153 tons, 9,4%
       - Torpedo bulkhead: 4 059 tons, 6,2%
       - Armament: 5 618 tons, 8,5%
       - Armour Deck: 10 293 tons, 15,6%
       - Conning Tower: 632 tons, 1,0%
    Machinery: 3 779 tons, 5,7%
    Hull, fittings & equipment: 23 965 tons, 36,4%
    Fuel, ammunition & stores: 8 067 tons, 12,3%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      106 264 lbs / 48 200 Kg = 52,0 x 16,0 " / 406 mm shells or 22,6 torpedoes
    Stability (Unstable if below 1.00): 1,19
    Metacentric height 8,6 ft / 2,6 m
    Roll period: 16,6 seconds
    Steadiness    - As gun platform (Average = 50 %): 61 %
            - Recoil effect (Restricted arc if above 1.00): 0,46
    Seaboat quality  (Average = 1.00): 1,21

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,629
    Length to Beam Ratio: 7,66 : 1
    'Natural speed' for length: 29,83 kts
    Power going to wave formation at top speed: 46 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): 40,82 degrees
    Stern overhang: 5,91 ft / 1,80 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        33,79 ft / 10,30 m
       - Forecastle (20%):    20,34 ft / 6,20 m
       - Mid (50%):        19,69 ft / 6,00 m
       - Quarterdeck (15%):    19,69 ft / 6,00 m
       - Stern:        21,00 ft / 6,40 m
       - Average freeboard:    21,09 ft / 6,43 m

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 68,0%
        - Above water (accommodation/working, high = better): 142,9%
    Waterplane Area: 77 647 Square feet or 7 214 Square metres
    Displacement factor (Displacement / loading): 109%
    Structure weight / hull surface area: 230 lbs/sq ft or 1 121 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 1,11
        - Longitudinal: 1,06
        - Overall: 1,07
    Hull space for machinery, storage, compartmentation is excellent
    Room for accommodation and workspaces is excellent
    Good seaboat, rides out heavy weather easily