piątek, 7 sierpnia 2026

Małe krążowniki dla Norwegii

Dziś okręt pomysłu kolegi KK, powstały w toku dyskusji pod postem z 17 maja. Jest to nieduży krążownik dla floty norweskiej, przeznaczony do ochrony własnej floty handlowej i prezentowania bandery na odległych akwenach. Jako że Norwegia nie była specjalnie zasobnym krajem, uznałem, że musi to być siłą rzeczy raczej skromna jednostka. Jako punkt odniesienia przyjąłem autentyczne jednostki duńskie, wśród nich Valkyrien z 1890 r. (3020 ton, 2x210, 4x150, 17,5 w.) oraz typ Hekla (3 szt., ok 1300 ton, 2x120/150, 17 w.). Myślę, że potencjalny okręt norweski mógłby być czym pośrednim między nimi, co dało następujące charakterystyki: wyporność 2170 ton, uzbrojenie 2x150, 4x120, 4wt356, pp25-51 (skosy), prędkość 19,5 w. 
Mam nadzieję, że się spodoba :)







Balder, norwegian protected cruiser laid down 1889 (Engine 1890)

Displacement:
    1 903 t light; 1 984 t standard; 2 169 t normal; 2 317 t full load

Dimensions: Length overall / water x beam x draught
    263,98 ft / 262,96 ft x 38,25 ft x 14,40 ft (normal load)
    80,46 m / 80,15 m x 11,66 m  x 4,39 m

Armament:
      2 - 5,91" / 150 mm guns in single mounts, 101,43lbs / 46,01kg shells, 1889 Model
      Quick firing guns in deck mounts 
      on centreline ends, evenly spread
      4 - 4,72" / 120 mm guns in single mounts, 50,35lbs / 22,84kg shells, 1887 Model
      Quick firing guns in deck mounts 
      on side, all amidships
      4 - 2,24" / 57,0 mm guns in single mounts, 5,06lbs / 2,30kg shells, 1883 Model
      Quick firing guns in deck mounts 
      on centreline, evenly spread, 2 raised mounts
      4 - 1,46" / 37,0 mm guns in single mounts, 1,43lbs / 0,65kg shells, 1885 Model
      Quick firing guns in deck mounts 
      on centreline ends, evenly spread, all raised mounts - superfiring
    Weight of broadside 430 lbs / 195 kg
    Shells per gun, main battery: 140
    4 - 14,0" / 356 mm submerged torpedo tubes

Armour:
   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    1,50" / 38 mm    0,98" / 25 mm              -
    2nd:    1,50" / 38 mm    0,98" / 25 mm              -
    3rd:    0,75" / 19 mm          -                  -

   - Armour deck: 1,34" / 34 mm (deck 0,98" / 25 mm, slopes 1,97" / 51 mm), Conning tower: 2,01" / 51 mm

Machinery:
    Coal fired boilers, complex reciprocating steam engines, 
    Direct drive, 2 shafts, 6 612 ihp / 4 932 Kw = 19,50 kts
    Range 2 750nm at 10,00 kts
    Bunker at max displacement = 333 tons (100% coal)

Complement:
    158 - 206

Cost:
    £0,252 million / $1,008 million

Distribution of weights at normal displacement:
    Armament: 54 tons, 2,5%
    Armour: 212 tons, 9,8%
       - Belts: 0 tons, 0,0%
       - Torpedo bulkhead: 0 tons, 0,0%
       - Armament: 32 tons, 1,5%
       - Armour Deck: 173 tons, 8,0%
       - Conning Tower: 7 tons, 0,3%
    Machinery: 1 002 tons, 46,2%
    Hull, fittings & equipment: 636 tons, 29,3%
    Fuel, ammunition & stores: 266 tons, 12,3%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      746 lbs / 338 Kg = 7,4 x 5,9 " / 150 mm shells or 0,3 torpedoes
    Stability (Unstable if below 1.00): 1,75
    Metacentric height 3,0 ft / 0,9 m
    Roll period: 9,0 seconds
    Steadiness    - As gun platform (Average = 50 %): 58 %
            - Recoil effect (Restricted arc if above 1.00): 0,13
    Seaboat quality  (Average = 1.00): 1,17

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,544
    Length to Beam Ratio: 7,14 : 1
    'Natural speed' for length: 16,22 kts
    Power going to wave formation at top speed: 57 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): -31,00 degrees
    Stern overhang: 1,02 ft / 0,31 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        10,96 ft / 3,34 m
       - Forecastle (19%):    9,97 ft / 3,04 m
       - Mid (50%):        9,97 ft / 3,04 m
       - Quarterdeck (13%):    9,97 ft / 3,04 m
       - Stern:        10,47 ft / 3,19 m
       - Average freeboard:    10,08 ft / 3,07 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 190,3%
        - Above water (accommodation/working, high = better): 83,9%
    Waterplane Area: 6 981 Square feet or 649 Square metres
    Displacement factor (Displacement / loading): 70%
    Structure weight / hull surface area: 59 lbs/sq ft or 290 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,93
        - Longitudinal: 1,92
        - Overall: 1,00
    Hull space for machinery, storage, compartmentation is cramped
    Room for accommodation and workspaces is cramped

Balder (1890)
Gjevjon (1891)
Heimdall (1892)
 

Brak komentarzy:

Prześlij komentarz