Trałowce typu Nimfa

Oto nowy trałowiec naszej flocie :) Niczym specjalnie się nie wyróżnia (bo i czym tej klasy jednostka może się odznaczać?). Zwykła, prosta jednostka przeznaczona do wypełnia jednego konkretnego zadania. Dzięki większym rozmiarom niż poprzednik ma nieco większe od niego możliwości. Można się spodziewać że będą to bardzo użyteczne jednostki w czasie zbliżającej się wojny. 

Nimfa, polish minewseeper laid down 1910

Displacement:
    167 t light; 172 t standard; 190 t normal; 205 t full load

Dimensions: Length overall / water x beam x draught
    122,28 ft / 120,77 ft x 16,90 ft x 6,40 ft (normal load)
    37,27 m / 36,81 m x 5,15 m  x 1,95 m

Armament:
      1 - 2,95" / 75,0 mm guns in single mounts, 12,87lbs / 5,84kg shells, 1891 Model
      Quick firing gun in deck mount
      on centreline forward
      1 - 0,30" / 7,6 mm guns in single mounts, 0,01lbs / 0,00kg shells, 1908 Model
      Machine gun in deck mount
      on centreline forward, 1 raised gun
    Weight of broadside 13 lbs / 6 kg
    Shells per gun, main battery: 150

Machinery:
    Coal fired boilers, simple reciprocating steam engines,
    Direct drive, 1 shaft, 694 ihp / 518 Kw = 15,00 kts
    Range 1 500nm at 10,00 kts
    Bunker at max displacement = 32 tons (100% coal)

Complement:
    25 - 33

Cost:
    £0,019 million / $0,077 million

Distribution of weights at normal displacement:
    Armament: 2 tons, 0,8%
    Machinery: 86 tons, 45,3%
    Hull, fittings & equipment: 60 tons, 31,4%
    Fuel, ammunition & stores: 23 tons, 12,0%
    Miscellaneous weights: 20 tons, 10,5%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      92 lbs / 42 Kg = 7,1 x 3,0 " / 75 mm shells or 0,1 torpedoes
    Stability (Unstable if below 1.00): 1,22
    Metacentric height 0,5 ft / 0,2 m
    Roll period: 10,0 seconds
    Steadiness    - As gun platform (Average = 50 %): 77 %
            - Recoil effect (Restricted arc if above 1.00): 0,10
    Seaboat quality  (Average = 1.00): 1,54

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,510
    Length to Beam Ratio: 7,15 : 1
    'Natural speed' for length: 10,99 kts
    Power going to wave formation at top speed: 61 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): 0,00 degrees
    Stern overhang: 1,51 ft / 0,46 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        9,48 ft / 2,89 m
       - Forecastle (21%):    7,48 ft / 2,28 m
       - Mid (50%):        6,50 ft / 1,98 m
       - Quarterdeck (16%):    6,99 ft / 2,13 m
       - Stern:        7,48 ft / 2,28 m
       - Average freeboard:    7,21 ft / 2,20 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 164,2%
        - Above water (accommodation/working, high = better): 69,0%
    Waterplane Area: 1 321 Square feet or 123 Square metres
    Displacement factor (Displacement / loading): 74%
    Structure weight / hull surface area: 23 lbs/sq ft or 111 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,85
        - Longitudinal: 4,43
        - 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

26 mines

Nimfa (1910)
Rusałka(1910)
Nereida (1910)
Hesperyda (1911)
Południca (1911)
Wiła (1911)
Utopiec (1912)
Wietrzyca (1912)