czwartek, 30 sierpnia 2012

Flota japońska w XIX w. - cz. III - 16.09.2011

Kolejna porcja projektów dla Japonii:-) Tym razem: nieco ulepszona kanonierka parowo-żaglowa z nowocześniejszą artylerią gwintowaną, szybkie bocznokołowe awizo oraz pancernik kazamatowy,  oparty w dużej mierze na konstrukcji poprzedniego typu, ale uzbrojony w artylerię gwintowaną i tradycyjnie wyposażony w pełne ożaglowanie.

Ukushima, japanese gunboat laid down 1867

Displacement:
    799 t light; 843 t standard; 946 t normal; 1 028 t full load

Dimensions: Length overall / water x beam x draught
    155,60 ft / 149,90 ft x 33,73 ft x 12,57 ft (normal load)
    47,43 m / 45,69 m x 10,28 m  x 3,83 m

Armament:
      4 - 7,01" / 178 mm guns in single mounts, 112,71lbs / 51,12kg shells, 1867 Model
      Muzzle loading guns in broadside mounts
      on side, evenly spread
      Aft Main mounts separated by engine room
    Weight of broadside 451 lbs / 204 kg
    Shells per gun, main battery: 100

Armour:

   - Conning tower: 1,46" / 37 mm

Machinery:
    Coal fired boilers, simple reciprocating steam engines,
    Direct drive, 1 shaft, 1 259 ihp / 939 Kw = 13,00 kts
    Range 2 600nm at 7,00 kts
    Bunker at max displacement = 185 tons (100% coal)

Complement:
    162

Cost:
    £0,114 million / $0,454 million

Distribution of weights at normal displacement:
    Armament: 56 tons, 6,0%
    Armour: 3 tons, 0,3%
       - Belts: 0 tons, 0,0%
       - Torpedo bulkhead: 0 tons, 0,0%
       - Armament: 0 tons, 0,0%
       - Armour Deck: 0 tons, 0,0%
       - Conning Tower: 3 tons, 0,3%
    Machinery: 273 tons, 28,9%
    Hull, fittings & equipment: 386 tons, 40,8%
    Fuel, ammunition & stores: 146 tons, 15,5%
    Miscellaneous weights: 81 tons, 8,6%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      320 lbs / 145 Kg = 2,8 x 7,0 " / 178 mm shells or 0,2 torpedoes
    Stability (Unstable if below 1.00): 1,33
    Metacentric height 1,6 ft / 0,5 m
    Roll period: 11,1 seconds
    Steadiness    - As gun platform (Average = 50 %): 81 %
            - Recoil effect (Restricted arc if above 1.00): 0,33
    Seaboat quality  (Average = 1.00): 1,61

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,521
    Length to Beam Ratio: 4,44 : 1
    'Natural speed' for length: 12,24 kts
    Power going to wave formation at top speed: 56 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): 26,00 degrees
    Stern overhang: 0,00 ft / 0,00 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        11,68 ft / 3,56 m
       - Forecastle (20%):    9,32 ft / 2,84 m
       - Mid (50%):        9,32 ft / 2,84 m
       - Quarterdeck (15%):    9,32 ft / 2,84 m
       - Stern:        9,78 ft / 2,98 m
       - Average freeboard:    9,54 ft / 2,91 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 146,8%
        - Above water (accommodation/working, high = better): 70,0%
    Waterplane Area: 3 314 Square feet or 308 Square metres
    Displacement factor (Displacement / loading): 79%
    Structure weight / hull surface area: 72 lbs/sq ft or 351 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,85
        - Longitudinal: 4,65
        - Overall: 1,00
    Hull space for machinery, storage, compartmentation is cramped
    Room for accommodation and workspaces is cramped
    Ship has slow, easy roll, a good, steady gun platform
    Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Okręty w typie:
Ukushima (1867)
Takarajima (1867)


Inazuma, japanese aviso laid down 1867

Displacement:
    936 t light; 960 t standard; 1 078 t normal; 1 172 t full load

Dimensions: Length overall / water x beam x draught
    209,55 ft / 209,55 ft x 27,36 ft x 12,04 ft (normal load)
    63,87 m / 63,87 m x 8,34 m  x 3,67 m

Armament:
      2 - 3,74" / 95,0 mm guns in single mounts, 17,13lbs / 7,77kg shells, 1867 Model
      Breech loading guns in deck mounts
      on centreline ends, evenly spread
    Weight of broadside 34 lbs / 16 kg
    Shells per gun, main battery: 140

Machinery:
    Coal fired boilers, simple reciprocating steam engines,
    Direct drive, 2 paddle wheels, 2 292 ihp / 1 710 Kw = 15,50 kts
    Range 2 300nm at 7,50 kts
    Bunker at max displacement = 212 tons (100% coal)

Complement:
    93 - 122

Cost:
    £0,112 million / $0,448 million

Distribution of weights at normal displacement:
    Armament: 4 tons, 0,4%
    Machinery: 540 tons, 50,1%
    Hull, fittings & equipment: 392 tons, 36,3%
    Fuel, ammunition & stores: 142 tons, 13,2%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      319 lbs / 145 Kg = 18,6 x 3,7 " / 95 mm shells or 0,2 torpedoes
    Stability (Unstable if below 1.00): 1,58
    Metacentric height 1,5 ft / 0,5 m
    Roll period: 9,3 seconds
    Steadiness    - As gun platform (Average = 50 %): 87 %
            - Recoil effect (Restricted arc if above 1.00): 0,04
    Seaboat quality  (Average = 1.00): 1,74

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,547
    Length to Beam Ratio: 7,66 : 1
    'Natural speed' for length: 14,48 kts
    Power going to wave formation at top speed: 49 %
    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:        11,91 ft / 3,63 m
       - Forecastle (20%):    9,06 ft / 2,76 m
       - Mid (50%):        9,06 ft / 2,76 m
       - Quarterdeck (15%):    9,06 ft / 2,76 m
       - Stern:        9,88 ft / 3,01 m
       - Average freeboard:    9,34 ft / 2,85 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 164,9%
        - Above water (accommodation/working, high = better): 74,0%
    Waterplane Area: 3 988 Square feet or 371 Square metres
    Displacement factor (Displacement / loading): 87%
    Structure weight / hull surface area: 57 lbs/sq ft or 278 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,92
        - Longitudinal: 2,20
        - Overall: 1,00
    Hull space for machinery, storage, compartmentation is cramped
    Room for accommodation and workspaces is cramped
    Ship has slow, easy roll, a good, steady gun platform
    Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Okręty w typie:
Inazuma (1867)
Yunagi (1868)


Nagato, japanese battleship laid down 1867 (Engine 1868)

Displacement:
    5 385 t light; 5 667 t standard; 6 181 t normal; 6 593 t full load

Dimensions: Length overall / water x beam x draught
    280,77 ft / 280,77 ft x 56,04 ft x 23,43 ft (normal load)
    85,58 m / 85,58 m x 17,08 m  x 7,14 m

Armament:
      4 - 9,02" / 229 mm guns in single mounts, 240,00lbs / 108,86kg shells, 1867 Model
      Breech loading guns in casemate mounts
      on side, all amidships
      4 guns in hull casemates - Limited use in all but light seas
      2 - 7,01" / 178 mm guns in single mounts, 112,71lbs / 51,12kg shells, 1867 Model
      Muzzle loading guns in casemate mounts
      on side, all amidships
      2 guns in hull casemates - Limited use in all but light seas
      4 - 7,01" / 178 mm guns in single mounts, 112,71lbs / 51,12kg shells, 1867 Model
      Muzzle loading guns in casemate mounts
      on side, all amidships
      1 - 7,01" / 178 mm guns in single mounts, 112,71lbs / 51,12kg shells, 1867 Model
      Muzzle loading gun in casemate mount
      on bow with limited arc
      1 gun in hull casemate - Limited use in all but light seas
      2 - 3,74" / 95,0 mm guns in single mounts, 17,13lbs / 7,77kg shells, 1867 Model
      Breech loading guns in deck mounts
      on centreline, all forward
    Weight of broadside 1 783 lbs / 809 kg
    Shells per gun, main battery: 150

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    7,52" / 191 mm    225,66 ft / 68,78 m    10,43 ft / 3,18 m
    Ends:    4,02" / 102 mm      55,12 ft / 16,80 m    10,43 ft / 3,18 m
      Main Belt covers 124% of normal length

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    8,19" / 208 mm          -                  -
    2nd:    8,19" / 208 mm          -                  -
    3rd:    5,98" / 152 mm          -                  -
    4th:    2,99" / 76 mm          -                  -

   - Armour deck: 1,18" / 30 mm, Conning tower: 4,72" / 120 mm

Machinery:
    Coal fired boilers, simple reciprocating steam engines,
    Direct drive, 1 shaft, 4 298 ihp / 3 207 Kw = 14,00 kts
    Range 3 200nm at 8,00 kts
    Bunker at max displacement = 925 tons (100% coal)

Complement:
    663

Cost:
    £0,530 million / $2,119 million

Distribution of weights at normal displacement:
    Armament: 223 tons, 3,6%
    Armour: 1 481 tons, 24,0%
       - Belts: 834 tons, 13,5%
       - Torpedo bulkhead: 0 tons, 0,0%
       - Armament: 370 tons, 6,0%
       - Armour Deck: 242 tons, 3,9%
       - Conning Tower: 34 tons, 0,6%
    Machinery: 1 101 tons, 17,8%
    Hull, fittings & equipment: 2 038 tons, 33,0%
    Fuel, ammunition & stores: 796 tons, 12,9%
    Miscellaneous weights: 542 tons, 8,8%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      4 205 lbs / 1 907 Kg = 17,5 x 9,0 " / 229 mm shells or 0,7 torpedoes
    Stability (Unstable if below 1.00): 1,31
    Metacentric height 3,4 ft / 1,0 m
    Roll period: 12,7 seconds
    Steadiness    - As gun platform (Average = 50 %): 100 %
            - Recoil effect (Restricted arc if above 1.00): 0,22
    Seaboat quality  (Average = 1.00): 2,00

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,587
    Length to Beam Ratio: 5,01 : 1
    'Natural speed' for length: 16,76 kts
    Power going to wave formation at top speed: 45 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): -9,00 degrees
    Stern overhang: 0,00 ft / 0,00 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        16,47 ft / 5,02 m
       - Forecastle (20%):    14,37 ft / 4,38 m
       - Mid (50%):        14,37 ft / 4,38 m
       - Quarterdeck (15%):    14,37 ft / 4,38 m
       - Stern:        15,03 ft / 4,58 m
       - Average freeboard:    14,59 ft / 4,45 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 95,6%
        - Above water (accommodation/working, high = better): 87,3%
    Waterplane Area: 11 096 Square feet or 1 031 Square metres
    Displacement factor (Displacement / loading): 103%
    Structure weight / hull surface area: 115 lbs/sq ft or 561 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,88
        - Longitudinal: 3,13
        - Overall: 1,00
    Hull space for machinery, storage, compartmentation is adequate
    Room for accommodation and workspaces is cramped
    Ship has slow, easy roll, a good, steady gun platform
    Excellent seaboat, comfortable, can fire her guns in the heaviest weather

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