Trałowiec rzeczny TR-1

Takiego maleństwa to jeszcze nie było, i chyba już więcej nie będzie :) Jest to trałowiec rzeczny, wyposażony w fortrał zamontowany na końcach drewnianych drągów przymocowanych po bokach przedniej części kadłuba. Do samoobrony trałowiec posiada 1 karabin maszynowy. Napęd stanowi niewielki silnik Diesla. I to w zasadzie wszystko, co można o nim powiedzieć ;) 

TR-1, polish river minesweeper laid down 1913

Displacement:
    4 t light; 4 t standard; 4 t normal; 4 t full load

Dimensions: Length overall / water x beam x draught
    31,92 ft / 31,92 ft x 8,04 ft x 1,31 ft (normal load)
    9,73 m / 9,73 m x 2,45 m  x 0,40 m

Armament:
      1 - 0,30" / 7,6 mm guns in single mounts, 0,01lbs / 0,00kg shells, 1913 Model
      Machine gun in deck mount
      on centreline aft
    Weight of broadside 0 lbs / 0 kg
    Shells per gun, main battery: 1 000

Machinery:
    Diesel Internal combustion motors,
    Geared drive, 1 shaft, 15 shp / 11 Kw = 9,00 kts
    Range 150nm at 7,00 kts
    Bunker at max displacement = 0 tons

Complement:
    3

Cost:
    £0,000 million / $0,001 million

Distribution of weights at normal displacement:
    Armament: 0 tons, 0,0%
    Machinery: 1 tons, 14,9%
    Hull, fittings & equipment: 3 tons, 81,0%
    Fuel, ammunition & stores: 0 tons, 4,1%
    Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      13 lbs / 6 Kg = 942,7 x 0,3 " / 8 mm shells or 0,2 torpedoes
    Stability (Unstable if below 1.00): 1,39
    Metacentric height 0,2 ft / 0,1 m
    Roll period: 7,5 seconds
    Steadiness    - As gun platform (Average = 50 %): 21 %
            - Recoil effect (Restricted arc if above 1.00): 0,00
    Seaboat quality  (Average = 1.00): 0,17

Hull form characteristics:
    Hull has a flush deck
    Block coefficient: 0,400
    Length to Beam Ratio: 3,97 : 1
    'Natural speed' for length: 5,65 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: 0,00 ft / 0,00 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        2,49 ft / 0,76 m
       - Forecastle (20%):    2,00 ft / 0,61 m
       - Mid (50%):        1,51 ft / 0,46 m
       - Quarterdeck (15%):    1,51 ft / 0,46 m
       - Stern:        1,51 ft / 0,46 m
       - Average freeboard:    1,72 ft / 0,52 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 50,2%
        - Above water (accommodation/working, high = better): +nieskończoność
    Waterplane Area: 149 Square feet or 14 Square metres
    Displacement factor (Displacement / loading): 331%
    Structure weight / hull surface area: 16 lbs/sq ft or 79 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 1,92
        - Longitudinal: 6,21
        - Overall: 2,15
    Hull space for machinery, storage, compartmentation is excellent
    Room for accommodation and workspaces is excellent
    Ship has quick, lively roll, not a steady gun platform
    Caution: Lacks seaworthiness - very limited seakeeping ability

TR-1 (1913)
TR-2 (1913)
TR-3 (1913)
TR-4 (1913)
TR-5 (1913)
TR-6 (1914)
TR-7 (1914)
TR-8 (1914)