Polska flota w XIX w. - mały pancernik centralnobateryjny

Dzisiejszy okręt to mały, centralnobateryjny pancernik obrony wybrzeża, uzbrojony w 4 60-funtówki. Jest to alternatywa dla monitora prezentowanego niedawno, nad którym ma co prawda przewagę w postaci znacznie lepszej dzielności morskiej (przez co z pewnością byłby jednostką uniwersalniejszą), ale też posiada uzbrojenie dużo mniejszego kalibru – stąd nie stanowi jakiejś specjalnej rewelacji. Ale w dobie różnorakich eksperymentów i poszukiwań – a taką były lata 60-te XIX w. – łatwo wyobrazić sobie powstanie takiej jednostki..

Warszawa, polish coast defence battleship laid down 1865 (Engine 1866)

Displacement:
    1 101 t light; 1 134 t standard; 1 341 t normal; 1 507 t full load

Dimensions: Length overall / water x beam x draught
    179,00 ft / 176,51 ft x 41,86 ft x 11,38 ft (normal load)
    54,56 m / 53,80 m x 12,76 m  x 3,47 m

Armament:
      4 - 60pdr guns in single mounts, 60lbs / 27,22kg shells, 1865 Model
      Smoothbore guns in broadside mounts
      on side, all amidships
    Weight of broadside 120 lbs / 54 kg
    Shells per gun, main battery: 100

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    4,72" / 120 mm    100,00 ft / 30,48 m    7,32 ft / 2,23 m
    Ends:    Unarmoured
      Main Belt covers 87% of normal length

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    4,72" / 120 mm          -                  -

   - Armour deck: 0,98" / 25 mm

Machinery:
    Coal fired boilers, simple reciprocating steam engines,
    Direct drive, 1 shaft, 1 113 ihp / 830 Kw = 12,00 kts
    Range 2 940nm at 8,00 kts
    Bunker at max displacement = 373 tons (100% coal)

Complement:
    110 - 144

Cost:
    £0,093 million / $0,370 million

Distribution of weights at normal displacement:
    Armament: 15 tons, 1,1%
    Armour: 305 tons, 22,7%
       - Belts: 165 tons, 12,3%
       - Torpedo bulkhead: 0 tons, 0,0%
       - Armament: 47 tons, 3,5%
       - Armour Deck: 92 tons, 6,9%
       - Conning Tower: 0 tons, 0,0%
    Machinery: 299 tons, 22,3%
    Hull, fittings & equipment: 482 tons, 36,0%
    Fuel, ammunition & stores: 241 tons, 17,9%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      1 245 lbs / 565 Kg = 42,9 x 4,5 " / 115 mm shells or 0,5 torpedoes
    Stability (Unstable if below 1.00): 1,77
    Metacentric height 3,4 ft / 1,0 m
    Roll period: 9,5 seconds
    Steadiness    - As gun platform (Average = 50 %): 86 %
            - Recoil effect (Restricted arc if above 1.00): 0,03
    Seaboat quality  (Average = 1.00): 1,73

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,558
    Length to Beam Ratio: 4,22 : 1
    'Natural speed' for length: 13,29 kts
    Power going to wave formation at top speed: 48 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): -9,00 degrees
    Stern overhang: 2,49 ft / 0,76 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        9,12 ft / 2,78 m
       - Forecastle (20%):    7,97 ft / 2,43 m
       - Mid (50%):        7,48 ft / 2,28 m
       - Quarterdeck (15%):    7,48 ft / 2,28 m
       - Stern:        8,99 ft / 2,74 m
       - Average freeboard:    7,86 ft / 2,40 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 81,2%
        - Above water (accommodation/working, high = better): 66,4%
    Waterplane Area: 5 046 Square feet or 469 Square metres
    Displacement factor (Displacement / loading): 132%
    Structure weight / hull surface area: 70 lbs/sq ft or 343 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,91
        - Longitudinal: 2,29
        - Overall: 1,00
    Hull space for machinery, storage, compartmentation is excellent
    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