Niderlandzkie kutry torpedowe typu T17 1934-1935 (16 jednostek)

Niderlandzkie kutry torpedowe typu T17 1934-1935 (16 jednostek)

Trzecia już generacja niderlandzkich kutrów torpedowych. Jako pierwsza z nich, została wyposażona w wyrzutnie torpedowe kalibru 533 mm.

Po osiem jednostek zbudowane zostało w stoczniach A.F. Smulders w Schiedam i Willemsoord Werf w Den Helder.

Opis techniczny.

Kadłub

O sporym, jak na kuter torpedowy wydłużeniu.

Napęd

Trzy silniki diesla DAF po 780 KM każdy.

Uzbrojenie

Kutry zostały wyposażone w:

-  1xIIx13,2/78 FN P1919, przy elewacji 45^o donośność pociskiem 0,05 kg wynosi 7000 m, a przy elewacji maksymalnej 85^o donośność tym samym pociskiem wynosi 4080 m;

- 2xIxwt 533 mm.

Inne

Na okręcikach zainstalowano dwie radiostacje krótkiego zasięgu.

T17, Netherlands motor torpedo boat laid down 1934, launched 1934, completed 1934 (engine 1934)

Displacement:

            43 t light; 45 t standard; 50 t normal; 54 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)

            (97,96 ft / 95,96 ft) x 14,76 ft x (4,10 / 4,27 ft)

            (29,86 m / 29,25 m) x 4,50 m  x (1,25 / 1,30 m)

Armament:

      2 - 0,52" / 13,2 mm 78,0 cal guns - 0,11lbs / 0,05kg shells, 1 500 per gun

              Machine guns in deck mount, 1919 Model

              1 x Twin mount on centreline, aft deck aft

      Weight of broadside 0 lbs / 0 kg

      Main Torpedoes

      2 - 21,0" / 533 mm, 22,90 ft / 6,98 m torpedoes - 1,528 t each, 3,057 t total

            In 2 sets of deck mounted carriage/fixed tubes

Machinery:

            Diesel Internal combustion motors,

            Geared drive, 3 shafts, 2 340 shp / 1 746 Kw = 38,37 kts

            Range 300nm at 20,00 kts

            Bunker normal = 5 tons, at max displacement = 9 tons 

Complement:

            9 - 12

Cost:

            £0,027 million / $0,108 million

Distribution of weights at normal displacement:

            Armament: 4 tons, 8,0%

               - Guns: 0 tons, 0,3%

               - Weapons: 4 tons, 7,7%

            Machinery: 28 tons, 56,1%

            Hull, fittings & equipment: 12 tons, 23,1%

            Fuel, ammunition & stores: 6 tons, 12,8%

            Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:

            Survivability (Non-critical penetrating hits needed to sink ship):

            4 lbs / 2 Kg = 53,1 x 0,5 " / 13 mm shells or 0,1 torpedoes

            Stability (Unstable if below 1.00): 1,36

            Metacentric height 0,5 ft / 0,1 m

            Roll period: 8,9 seconds

            Steadiness      - As gun platform (Average = 50 %): 37 %

                                   - Recoil effect (Restricted arc if above 1.00): 0,00

            Seaboat quality  (Average = 1.00): 0,2 

Hull form characteristics:

            Hull has a flush deck,

              a normal bow and large transom stern

            Block coefficient (normal/deep): 0,300 / 0,312

            Length to Beam Ratio: 6,50 : 1

            'Natural speed' for length: 12,08 kts

            Power going to wave formation at top speed: 82 %

            Trim (Max stability = 0, Max steadiness = 100): 100

            Bow angle (Positive = bow angles forward): 18,70 degrees

            Stern overhang: 0,00 ft / 0,00 m

            Freeboard (% = length of deck as a percentage of waterline length):

                                                                   Fore end,            Aft end

               - Forecastle:            20,00%,  5,91 ft / 1,80 m,  5,91 ft / 1,80 m

               - Forward deck:       32,00%,  5,91 ft / 1,80 m,  5,91 ft / 1,80 m

               - Aft deck:                32,00%,  5,91 ft / 1,80 m,  5,91 ft / 1,80 m

               - Quarter deck:        16,00%,  5,91 ft / 1,80 m,  5,91 ft / 1,80 m

               - Average freeboard:                      5,91 ft / 1,80 m

            Ship tends to be wet forward 

Ship space, strength and comments:

            Space - Hull below water (magazines/engines, low = better): 182,7%

                        - Above water (accommodation/working, high = better): 98,1%

            Waterplane Area: 865 Square feet or 80 Square metres

            Displacement factor (Displacement / loading): 37%

            Structure weight / hull surface area: 8 lbs/sq ft or 38 Kg/sq metre

            Hull strength (Relative):

                        - Cross-sectional: 0,26

                        - Longitudinal: 2,68

                        - Overall: 0,33

            Cramped machinery, storage, compartmentation space

            Adequate accommodation and workspace room

            Caution: Lacks seaworthiness - very limited seakeeping ability

T17 - T24 (1934)

T25 - T32 (1935)