Pancernik barbetowy i torpedowiec - 14.10.2011

Z dwu prezentowanych dziś okrętów, jeden to pierwszy nowoczesny barbetowy pancernik floty japońskiej - skojarzenia z  typem Terrible są tu jak najbardziej na miejscu, bo okręt dość mocno przypomina rozmiarami i uzbrojeniem te francuskie jednostki, ustępując im tylko grubością opancerzenia. Drugi okręt to torpedowiec - nieco szybsza wersja typu Oite z 1878 r.

Tango, japanese battleship laid down 1881 (Engine 1883)
Barbette ship

Displacement:
    6 552 t light; 6 893 t standard; 7 534 t normal; 8 046 t full load

Dimensions: Length overall / water x beam x draught
    288,68 ft / 288,68 ft x 59,94 ft x 25,52 ft (normal load)
    87,99 m / 87,99 m x 18,27 m  x 7,78 m

Armament:
      2 - 15,98" / 406 mm guns in single mounts, 1 766,29lbs / 801,18kg shells, 1881 Model
      Breech loading guns in open barbettes
      on centreline ends, evenly spread
      4 - 4,72" / 120 mm guns in single mounts, 45,61lbs / 20,69kg shells, 1881 Model
      Breech loading guns in casemate mounts
      on side, all amidships
      12 - 1,85" / 47,0 mm guns in single mounts, 2,74lbs / 1,24kg shells, 1881 Model
      Breech loading guns in deck mounts
      on side, evenly spread
    Weight of broadside 3 748 lbs / 1 700 kg
    Shells per gun, main battery: 90
    4 - 15,0" / 381 mm submerged torpedo tubes

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    15,7" / 400 mm    159,84 ft / 48,72 m    8,01 ft / 2,44 m
    Ends:    12,0" / 305 mm      77,95 ft / 23,76 m    6,14 ft / 1,87 m
      50,89 ft / 15,51 m Unarmoured ends
      Main Belt covers 85% of normal length
      Main belt does not fully cover magazines and engineering spaces

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:          -              -            15,0" / 381 mm
    2nd:    5,91" / 150 mm          -                  -

   - Armour deck: 2,52" / 64 mm, Conning tower: 7,52" / 191 mm

Machinery:
    Coal fired boilers, simple reciprocating steam engines,
    Direct drive, 2 shafts, 6 295 ihp / 4 696 Kw = 15,50 kts
    Range 4 700nm at 9,00 kts
    Bunker at max displacement = 1 153 tons (100% coal)

Complement:
    403 - 525

Cost:
    £0,798 million / $3,192 million

Distribution of weights at normal displacement:
    Armament: 468 tons, 6,2%
    Armour: 2 405 tons, 31,9%
       - Belts: 1 169 tons, 15,5%
       - Torpedo bulkhead: 0 tons, 0,0%
       - Armament: 585 tons, 7,8%
       - Armour Deck: 588 tons, 7,8%
       - Conning Tower: 62 tons, 0,8%
    Machinery: 1 252 tons, 16,6%
    Hull, fittings & equipment: 2 427 tons, 32,2%
    Fuel, ammunition & stores: 981 tons, 13,0%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      4 877 lbs / 2 212 Kg = 2,8 x 16,0 " / 406 mm shells or 0,9 torpedoes
    Stability (Unstable if below 1.00): 1,29
    Metacentric height 3,6 ft / 1,1 m
    Roll period: 13,2 seconds
    Steadiness    - As gun platform (Average = 50 %): 64 %
            - Recoil effect (Restricted arc if above 1.00): 0,37
    Seaboat quality  (Average = 1.00): 1,29

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,597
    Length to Beam Ratio: 4,82 : 1
    'Natural speed' for length: 16,99 kts
    Power going to wave formation at top speed: 51 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): -15,00 degrees
    Stern overhang: 0,00 ft / 0,00 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        11,22 ft / 3,42 m
       - Forecastle (17%):    11,22 ft / 3,42 m
       - Mid (50%):        11,22 ft / 3,42 m
       - Quarterdeck (18%):    11,22 ft / 3,42 m
       - Stern:        11,22 ft / 3,42 m
       - Average freeboard:    11,22 ft / 3,42 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 107,6%
        - Above water (accommodation/working, high = better): 66,9%
    Waterplane Area: 12 620 Square feet or 1 172 Square metres
    Displacement factor (Displacement / loading): 87%
    Structure weight / hull surface area: 130 lbs/sq ft or 633 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,88
        - Longitudinal: 3,01
        - Overall: 0,99
    Caution: Hull subject to strain in open-sea
    Hull space for machinery, storage, compartmentation is adequate
    Room for accommodation and workspaces is cramped
    Good seaboat, rides out heavy weather easily

Okręty w typie:
Tango (1883)
Kawachi (1884)
Settsu (1884)


Tamanami, japanese torpedo boat laid down 1883

Displacement:
    132 t light; 136 t standard; 148 t normal; 157 t full load

Dimensions: Length overall / water x beam x draught
    127,56 ft / 127,56 ft x 12,07 ft x 6,43 ft (normal load)
    38,88 m / 38,88 m x 3,68 m  x 1,96 m

Armament:
      1 - 1,85" / 47,0 mm guns in single mounts, 2,84lbs / 1,29kg shells, 1883 Model
      Quick firing gun in deck mount
      on centreline forward
    Weight of broadside 3 lbs / 1 kg
    Shells per gun, main battery: 175
    2 - 15,0" / 381 mm above water torpedoes

Machinery:
    Coal fired boilers, simple reciprocating steam engines,
    Direct drive, 1 shaft, 3 631 ihp / 2 708 Kw = 23,00 kts
    Range 690nm at 10,00 kts
    Bunker at max displacement = 22 tons (100% coal)
      Caution: Delicate, lightweight machinery

Complement:
    20 - 27

Cost:
    £0,018 million / $0,074 million

Distribution of weights at normal displacement:
    Armament: 0 tons, 0,2%
    Machinery: 97 tons, 65,6%
    Hull, fittings & equipment: 35 tons, 23,7%
    Fuel, ammunition & stores: 15 tons, 10,4%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      18 lbs / 8 Kg = 6,4 x 1,9 " / 47 mm shells or 0,1 torpedoes
    Stability (Unstable if below 1.00): 1,20
    Metacentric height 0,3 ft / 0,1 m
    Roll period: 9,4 seconds
    Steadiness    - As gun platform (Average = 50 %): 37 %
            - Recoil effect (Restricted arc if above 1.00): 0,05
    Seaboat quality  (Average = 1.00): 0,54

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,522
    Length to Beam Ratio: 10,57 : 1
    'Natural speed' for length: 11,29 kts
    Power going to wave formation at top speed: 75 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): -2,00 degrees
    Stern overhang: 0,00 ft / 0,00 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        8,53 ft / 2,60 m
       - Forecastle (20%):    6,59 ft / 2,01 m
       - Mid (50%):        6,59 ft / 2,01 m
       - Quarterdeck (15%):    6,59 ft / 2,01 m
       - Stern:        6,59 ft / 2,01 m
       - Average freeboard:    6,75 ft / 2,06 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 213,4%
        - Above water (accommodation/working, high = better): 34,5%
    Waterplane Area: 1 010 Square feet or 94 Square metres
    Displacement factor (Displacement / loading): 10%
    Structure weight / hull surface area: 13 lbs/sq ft or 63 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,41
        - Longitudinal: 3,24
        - Overall: 0,50
    Caution: Hull subject to strain in open-sea
    Hull space for machinery, storage, compartmentation is extremely poor
    Room for accommodation and workspaces is extremely poor
    Caution: Lacks seaworthiness - very limited seakeeping ability

Okręty w typie:
Tamanami (1883)
Onami (1883)
Yamagumo (1883)
Minegumo (1883)
Isoshio (1883)
Samidare (1884)
Fuyushio (1884)
Arashi (1884)
Amatsukaze (1884)
Satsuki (1884)