Flota polska w XIX w. (cz. III)

Kolejnymi okrętami dla naszej floty są dwie szybkie (jak na ówczesne czasy) korwety bocznokołowe, nazwane tym razem imionami bóstw z mitologii słowiańskiej. Jednostki te są najszybsze we flocie, jednocześnie niosąc najcięższe, choć niezbyt liczne, odprzodowe działa 60-funtowe..

Światowid, polish paddle corvette laid down 1857

Displacement:
    1 258 t light; 1 309 t standard; 1 554 t normal; 1 751 t full load

Dimensions: Length overall / water x beam x draught
    183,99 ft / 181,50 ft x 35,96 ft x 14,99 ft (normal load)
    56,08 m / 55,32 m x 10,96 m  x 4,57 m

Armament:
      6 - 60pdr guns in single mounts, 60lbs / 27,22kg shells, 1857 Model
      Smoothbore guns in deck mounts
      on side, all amidships
    Weight of broadside 180 lbs / 82 kg
    Shells per gun, main battery: 250

Machinery:
    Coal fired boilers, simple reciprocating steam engines,
    Direct drive, 2 paddle wheels, 1 715 ihp / 1 280 Kw = 13,00 kts
    Range 2 000nm at 8,00 kts
    Bunker at max displacement = 442 tons (100% coal)

Complement:
    160

Cost:
    £0,145 million / $0,579 million

Distribution of weights at normal displacement:
    Armament: 18 tons, 1,1%
    Machinery: 614 tons, 39,5%
    Hull, fittings & equipment: 587 tons, 37,7%
    Fuel, ammunition & stores: 296 tons, 19,1%
    Miscellaneous weights: 40 tons, 2,6%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      431 lbs / 195 Kg = 18,4 x 4,5 " / 115 mm shells or 0,2 torpedoes
    Stability (Unstable if below 1.00): 1,59
    Metacentric height 2,4 ft / 0,7 m
    Roll period: 9,8 seconds
    Steadiness    - As gun platform (Average = 50 %): 85 %
            - Recoil effect (Restricted arc if above 1.00): 0,06
    Seaboat quality  (Average = 1.00): 1,70

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,556
    Length to Beam Ratio: 5,05 : 1
    'Natural speed' for length: 13,47 kts
    Power going to wave formation at top speed: 51 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): -11,00 degrees
    Stern overhang: 2,49 ft / 0,76 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        10,47 ft / 3,19 m
       - Forecastle (20%):    8,99 ft / 2,74 m
       - Mid (50%):        7,97 ft / 2,43 m
       - Quarterdeck (25%):    8,46 ft / 2,58 m
       - Stern:        9,48 ft / 2,89 m
       - Average freeboard:    8,75 ft / 2,67 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 140,0%
        - Above water (accommodation/working, high = better): 59,3%
    Waterplane Area: 4 580 Square feet or 426 Square metres
    Displacement factor (Displacement / loading): 110%
    Structure weight / hull surface area: 82 lbs/sq ft or 401 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,92
        - Longitudinal: 3,09
        - Overall: 1,03
    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

Światowid (1857)
Trzygłów (1857)