niedziela, 6 listopada 2016

Bocznokołowe dozorowce pomocnicze



Zamęczę Was ;) Oto bowiem kolejne dozorowce pomocnicze, zaadaptowane z przybrzeżnych bocznokołowców pasażerskich. Jako uzbrojenie okręty otrzymały po 2 działka kal. 57 mm oraz 1 szybkostrzelne działko kal. 37 mm. Ponadto, podobnie jak w przypadku poprzednich jednostek tego rodzaju (post z 26 maja) większość dużych okien nadbudówki jednostki została zaślepiona, pozostawiono tylko stosunkowo nieliczne bulaje.
Dzięki napędowi bocznokołowemu  okręty charakteryzują się dobrą manewrowością. Mają też małe zanurzenie. Przewiduję, że oprócz pełnienia funkcji dozorowców, będą mogły w razie potrzeby być używane jako pomocnicze trałowce. A takich jednostek nigdy dość, więc sądzę, że spotkają się z Waszym przychylnym przyjęciem ;) 
PS. rysunek jest autorstwa WhyMe z forum shipbucket, przeze mnie został nieco zmodyfikowany (przemalowanie jednostki i parę drobnych detali).
PS2. Za radą kolegi ŁK, okręt otrzymał mozliwość zabierania na pokład 30 min, które są rozlokowane w pomieszczeniu rufowym.  


DP-17, polish auxiliary patrol boat laid down 1908, mobilized 1914

Displacement:
    325 t light; 334 t standard; 378 t normal; 413 t full load

Dimensions: Length overall / water x beam x draught
    207,25 ft / 197,34 ft x 26,41 ft x 5,64 ft (normal load)
    63,17 m / 60,15 m x 8,05 m  x 1,72 m

Armament:
      2 - 2,24" / 57,0 mm guns in single mounts, 5,23lbs / 2,37kg shells, 1885 Model
      Quick firing guns in deck mounts
      on centreline ends, evenly spread, all raised mounts
      1 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1908 Model
      Quick firing gun in deck mount
      on centreline forward, 1 raised gun
    Weight of broadside 12 lbs / 5 kg
    Shells per gun, main battery: 300

Machinery:
    Coal fired boilers, simple reciprocating steam engines,
    Direct drive, 2 paddle wheels, 868 ihp / 648 Kw = 15,00 kts
    Range 2 500nm at 10,00 kts
    Bunker at max displacement = 79 tons (100% coal)

Complement:
    42 - 55

Cost:
    £0,033 million / $0,131 million

Distribution of weights at normal displacement:
    Armament: 1 tons, 0,4%
    Machinery: 143 tons, 37,9%
    Hull, fittings & equipment: 157 tons, 41,4%
    Fuel, ammunition & stores: 54 tons, 14,2%
    Miscellaneous weights: 23 tons, 6,1%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      361 lbs / 164 Kg = 63,9 x 2,2 " / 57 mm shells or 0,3 torpedoes
    Stability (Unstable if below 1.00): 1,54
    Metacentric height 1,4 ft / 0,4 m
    Roll period: 9,3 seconds
    Steadiness    - As gun platform (Average = 50 %): 75 %
            - Recoil effect (Restricted arc if above 1.00): 0,02
    Seaboat quality  (Average = 1.00): 1,49

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,450
    Length to Beam Ratio: 7,47 : 1
    'Natural speed' for length: 14,05 kts
    Power going to wave formation at top speed: 44 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): 5,00 degrees
    Stern overhang: 8,99 ft / 2,74 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        10,47 ft / 3,19 m
       - Forecastle (13%):    7,97 ft / 2,43 m
       - Mid (50%):        5,48 ft / 1,67 m
       - Quarterdeck (7%):    8,46 ft / 2,58 m
       - Stern:        10,47 ft / 3,19 m
       - Average freeboard:    7,29 ft / 2,22 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 133,0%
        - Above water (accommodation/working, high = better): 103,4%
    Waterplane Area: 3 325 Square feet or 309 Square metres
    Displacement factor (Displacement / loading): 117%
    Structure weight / hull surface area: 34 lbs/sq ft or 164 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 1,06
        - Longitudinal: 1,51
        - Overall: 1,10
    Hull space for machinery, storage, compartmentation is cramped
    Room for accommodation and workspaces is adequate
    Ship has slow, easy roll, a good, steady gun platform
    Good seaboat, rides out heavy weather easily

30 mines
 
DP-17 (1908, mobilized 1914)
DP-18 (1909, mobilized 1914)

piątek, 4 listopada 2016

Dwa typy trałowców pomocniczych



Dziś kolejne trałowce pomocnicze. Są to jednostki praktycznie nowe (wodowane w latach 1913-1914 r.). Od poprzednich jednostek tego rodzaju wyróżniają się napędem w jednym przypadku silnikiem spalinowym, w drugim - silnikiem diesla. Poza tym posiadają standardowe uzbrojenie dla pomocniczych trałowców naszej floty – 1 działko 47 mm i 1 km.  


TP-12, polish auxiliary minewseeper laid down 1913, mobilized 1914

Displacement:
    118 t light; 121 t standard; 131 t normal; 139 t full load

Dimensions: Length overall / water x beam x draught
    82,58 ft / 78,58 ft x 18,90 ft x 6,30 ft (normal load)
    25,17 m / 23,95 m x 5,76 m  x 1,92 m

Armament:
      1 - 1,85" / 47,0 mm guns in single mounts, 2,88lbs / 1,31kg shells, 1884 Model
      Quick firing gun in deck mount
      on centreline amidships
      1 - 0,30" / 7,6 mm guns in single mounts, 0,01lbs / 0,00kg shells, 1913 Model
      Machine gun in deck mount
      on centreline forward
    Weight of broadside 3 lbs / 1 kg
    Shells per gun, main battery: 200

Machinery:
    Petrol Internal combustion motors,
    Direct drive, 1 shaft, 291 shp / 217 Kw = 12,00 kts
    Range 2 700nm at 8,00 kts
    Bunker at max displacement = 18 tons

Complement:
    19 - 25

Cost:
    £0,007 million / $0,026 million

Distribution of weights at normal displacement:
    Armament: 0 tons, 0,3%
    Machinery: 11 tons, 8,7%
    Hull, fittings & equipment: 102 tons, 78,1%
    Fuel, ammunition & stores: 13 tons, 9,9%
    Miscellaneous weights: 4 tons, 3,1%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      439 lbs / 199 Kg = 138,7 x 1,9 " / 47 mm shells or 1,0 torpedoes
    Stability (Unstable if below 1.00): 1,05
    Metacentric height 0,4 ft / 0,1 m
    Roll period: 11,8 seconds
    Steadiness    - As gun platform (Average = 50 %): 53 %
            - Recoil effect (Restricted arc if above 1.00): 0,02
    Seaboat quality  (Average = 1.00): 1,07

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,490
    Length to Beam Ratio: 4,16 : 1
    'Natural speed' for length: 8,86 kts
    Power going to wave formation at top speed: 67 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): 0,00 degrees
    Stern overhang: 4,00 ft / 1,22 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        10,96 ft / 3,34 m
       - Forecastle (15%):    8,46 ft / 2,58 m
       - Mid (50%):        5,48 ft / 1,67 m
       - Quarterdeck (21%):    6,00 ft / 1,83 m
       - Stern:        6,00 ft / 1,83 m
       - Average freeboard:    6,79 ft / 2,07 m

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 35,3%
        - Above water (accommodation/working, high = better): 60,4%
    Waterplane Area: 941 Square feet or 87 Square metres
    Displacement factor (Displacement / loading): 441%
    Structure weight / hull surface area: 63 lbs/sq ft or 306 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 2,34
        - Longitudinal: 19,89
        - Overall: 2,90
    Hull space for machinery, storage, compartmentation is excellent
    Room for accommodation and workspaces is cramped

TP-12 (1913, mobilized 1914)
TP-13 (1913, mobilized 1914)
TP-14 (1913, mobilized 1914)


TP-15, polish auxiliary minewseeper laid down 1914, mobilized 1915

Displacement:
    101 t light; 104 t standard; 115 t normal; 124 t full load

Dimensions: Length overall / water x beam x draught
    80,61 ft / 79,59 ft x 15,81 ft x 6,40 ft (normal load)
    24,57 m / 24,26 m x 4,82 m  x 1,95 m

Armament:
      1 - 1,85" / 47,0 mm guns in single mounts, 2,88lbs / 1,31kg shells, 1884 Model
      Quick firing gun in deck mount
      on centreline amidships
      1 - 0,30" / 7,6 mm guns in single mounts, 0,01lbs / 0,00kg shells, 1913 Model
      Machine gun in deck mount
      on centreline forward
    Weight of broadside 3 lbs / 1 kg
    Shells per gun, main battery: 200

Machinery:
    Diesel Internal combustion motors,
    Direct drive, 1 shaft, 364 shp / 272 Kw = 13,00 kts
    Range 3 000nm at 8,50 kts
    Bunker at max displacement = 20 tons

Complement:
    16 - 22

Cost:
    £0,007 million / $0,030 million

Distribution of weights at normal displacement:
    Armament: 0 tons, 0,3%
    Machinery: 14 tons, 12,2%
    Hull, fittings & equipment: 84 tons, 72,8%
    Fuel, ammunition & stores: 14 tons, 12,1%
    Miscellaneous weights: 3 tons, 2,6%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      226 lbs / 102 Kg = 71,2 x 1,9 " / 47 mm shells or 0,4 torpedoes
    Stability (Unstable if below 1.00): 0,93
    Metacentric height 0,3 ft / 0,1 m
    Roll period: 12,8 seconds
    Steadiness    - As gun platform (Average = 50 %): 76 %
            - Recoil effect (Restricted arc if above 1.00): 0,05
    Seaboat quality  (Average = 1.00): 1,52

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,500
    Length to Beam Ratio: 5,03 : 1
    'Natural speed' for length: 8,92 kts
    Power going to wave formation at top speed: 68 %
    Trim (Max stability = 0, Max steadiness = 100): 50
    Bow angle (Positive = bow angles forward): 0,00 degrees
    Stern overhang: 1,02 ft / 0,31 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        13,39 ft / 4,08 m
       - Forecastle (16%):    9,48 ft / 2,89 m
       - Mid (50%):        6,50 ft / 1,98 m
       - Quarterdeck (12%):    6,99 ft / 2,13 m
       - Stern:        7,97 ft / 2,43 m
       - Average freeboard:    7,93 ft / 2,42 m

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 46,3%
        - Above water (accommodation/working, high = better): 70,4%
    Waterplane Area: 806 Square feet or 75 Square metres
    Displacement factor (Displacement / loading): 339%
    Structure weight / hull surface area: 45 lbs/sq ft or 218 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 1,74
        - Longitudinal: 32,71
        - Overall: 2,33
    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

TP-15 (1914, mobilized 1915)
TP-16 (1914, mobilized 1915)