Okręt baza nurków typu Krak 1921 (1 szt.) oraz zmodernizowana baza i okręt ratowniczy OP typu Rysy

Okręt baza nurków typu Krak 1921 (1 szt.) oraz zmodernizowana baza i okręt ratowniczy OP typu Rysy

Okręt, jakiego w naszej flocie jeszcze nie było. Jest to baza nurków, pełniąca role zaplecza technicznego i socjalnego przy wykonywaniu prac podwodnych.

Jednostka jest wyposażona m.in. w dwa dzwony nurkowe, dwie komory dekompresyjne, ambulatorium, stację przygotowania i dystrybucji mieszanek oddechowych z magazynem gazów, zespół sprężarek, zaplecze warsztatowe oraz pomieszczenia mieszkalne i wypoczynkowe dla nurków.

Okręt posiada bardzo dobre właściwości morskie i zespół kotwic służący do skutecznego unieruchomienia jednostki nad miejscem prowadzenia prac podwodnych. Szybkość i zasięg są adekwatne do wykonywanych zadań. Uzbrojenie zapewnia dobrą obronę plot, chociaż nie przewiduje się wykorzystania okrętu w strefie bezpośrednich działań zbrojnych.

Aby nie trudzić Kolegów koniecznością wykonywania obliczeń, sam już skorygowałem wskaźniki odporności okrętu.

Krak, Poland Diving support ship laid down 1921

Displacement:

            2 166 t light; 2 220 t standard; 2 511 t normal; 2 743 t full load

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

            (242,91 ft / 236,22 ft) x 39,37 ft x (15,75 / 16,94 ft)

            (74,04 m / 72,00 m) x 12,00 m  x (4,80 / 5,16 m)

Armament:

      1 - 4,13" / 105 mm 50,0 cal gun - 33,29lbs / 15,10kg shells, 120 per gun

              Dual purpose gun in deck and hoist mount, 1920 Model

              1 x Single mount on centreline, forward deck forward

      1 - 1,57" / 40,0 mm 60,0 cal gun - 2,05lbs / 0,93kg shells, 600 per gun

              Anti-air gun in deck mount, 1919 Model

              1 x Single mount on centreline, aft deck aft

      2 - 0,98" / 25,0 mm 60,0 cal guns - 0,55lbs / 0,25kg shells, 1 200 per gun

              Anti-air guns in deck mounts, 1919 Model

              2 x Single mounts on sides, forward deck aft 2 raised mounts

      Weight of broadside 36 lbs / 16 kg

Machinery:

            Diesel Internal combustion motors,

            Geared drive, 2 shafts, 2 762 shp / 2 061 Kw = 15,00 kts

            Range 12 000nm at 10,00 kts

            Bunker at max displacement = 523 tons

Complement:

            176 - 230

Cost:

            £0,238 million / $0,952 million

Distribution of weights at normal displacement:

            Armament: 13 tons, 0,5%

               - Guns: 13 tons, 0,5%

            Machinery: 95 tons, 3,8%

            Hull, fittings & equipment: 1 808 tons, 72,0%

            Fuel, ammunition & stores: 344 tons, 13,7%

            Miscellaneous weights: 250 tons, 10,0%

               - Hull below water: 100 tons

               - Hull above water: 100 tons

               - On freeboard deck: 50 tons

Overall survivability and seakeeping ability:

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

              11 635 lbs / 5 278 Kg = 50,5 x 4,1 " / 105 mm shells or 0,7 torpedoes

            Stability (Unstable if below 1.00): 1,25

            Metacentric height 1,9 ft / 0,6 m

            Roll period: 12,1 seconds

            Steadiness      - As gun platform (Average = 50 %): 78 %

                                   - Recoil effect (Restricted arc if above 1.00): 0,03

            Seaboat quality  (Average = 1.00): 1,95

Hull form characteristics:

            Hull has rise forward of midbreak, raised quarterdeck ,

              a normal bow and a round stern

            Block coefficient (normal/deep): 0,600 / 0,609

            Length to Beam Ratio: 6,00 : 1

            'Natural speed' for length: 15,37 kts

            Power going to wave formation at top speed: 50 %

            Trim (Max stability = 0, Max steadiness = 100): 40

            Bow angle (Positive = bow angles forward): 9,00 degrees

            Stern overhang: 3,94 ft / 1,20 m

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

                                               Fore end,        Aft end

               - Forecastle:            10,00%,  17,39 ft / 5,30 m,  16,08 ft / 4,90 m

               - Forward deck:       50,00%,  16,08 ft / 4,90 m,  16,08 ft / 4,90 m

               - Aft deck:    30,00%,  7,87 ft / 2,40 m,  7,87 ft / 2,40 m

               - Quarter deck:        10,00%,  16,08 ft / 4,90 m,  16,08 ft / 4,90 m

               - Average freeboard:                      13,67 ft / 4,17 m

Ship space, strength and comments:

            Space - Hull below water (magazines/engines, low = better): 24,2%

                        - Above water (accommodation/working, high = better): 95,7%

            Waterplane Area: 6 802 Square feet or 632 Square metres

            Displacement factor (Displacement / loading): 522%

            Structure weight / hull surface area: 160 lbs/sq ft or 781 Kg/sq metre

            Hull strength (Relative):

                        - Cross-sectional: 2,76

                        - Longitudinal: 9,90

                        - Overall: 3,14

            Excellent machinery, storage, compartmentation space

            Adequate accommodation and workspace room

            Ship has slow, easy roll, a good, steady gun platform

            Excellent seaboat, comfortable, can fire her guns in the heaviest Feather

Jednostka może współpracować z bazą i okrętem ratowniczym okrętów podwodnych typu Rysy (SDS-2 1919), który został dodatkowo wyposażony w dzwon nurkowy przystosowany do ewakuacji załóg zatopionych okrętów podwodnych.

Niejako „przy okazji” na Rysach zmodyfikowano częściowo uzbrojenie; w miejsce dwu pojedynczych dział morskich 120 mm zamontowano dwa pojedyncze działa uniwersalne tegoż kalibru, a w miejsce pojedynczej armaty plot 75 mm zamontowano podwójne stanowisko działek plot 40 mm. Dodano także dwie 6-osobowe tratwy ratunkowe.

Poniżej przedstawiam aktualną sylwetkę Rysów oraz skorygowany raport (z urealnioną już odpornością).

 

Rysy, Poland Submarine depot and rescue ship laid down 1919

Displacement:

            5 835 t light; 5 984 t standard; 6 874 t normal; 7 587 t full load

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

            (387,00 ft / 378,94 ft) x 54,13 ft x (18,04 / 19,63 ft)

            (117,96 m / 115,50 m) x 16,50 m  x (5,50 / 5,98 m)

Armament:

      2 - 4,72" / 120 mm 50,0 cal guns - 52,91lbs / 24,00kg shells, 150 per gun

              Dual purpose guns in deck and hoist mounts, 1919 Model

              2 x Single mounts on centreline ends, evenly spread

      2 - 1,57" / 40,0 mm 60,0 cal guns - 2,05lbs / 0,93kg shells, 600 per gun

              Anti-air guns in deck mount, 1919 Model

              1 x Twin mount on centreline, aft deck aft 1 raised mount

      4 - 0,98" / 25,0 mm 60,0 cal guns - 0,55lbs / 0,25kg shells, 1 200 per gun

              Anti-air guns in deck mounts, 1919 Model

              4 x Single mounts on sides, evenly spread 4 raised mounts

      Weight of broadside 111 lbs / 50 kg

Machinery:

            Oil fired boilers, complex reciprocating steam engines,

            Geared drive, 2 shafts, 8 994 ihp / 6 709 Kw = 18,00 kts

            Range 15 000nm at 10,00 kts

            Bunker at max displacement = 1 603 tons

Complement:

            376 - 490

Cost:

            £0,634 million / $2,538 million

Distribution of weights at normal displacement:

            Armament: 38 tons, 0,5%

               - Guns: 38 tons, 0,5%

            Machinery: 529 tons, 7,7%

            Hull, fittings & equipment: 3 803 tons, 55,3%

            Fuel, ammunition & stores: 1 040 tons, 15,1%

            Miscellaneous weights: 1 465 tons, 21,3%

               - Hull below water: 1 200 tons

               - Hull above water: 240 tons

               - On freeboard deck: 25 tons

Overall survivability and seakeeping ability:

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

              16 914 lbs / 7 672 Kg = 91,1 x 4,7 " / 120 mm shells or 0,9 torpedoes

            Stability (Unstable if below 1.00): 1,31

            Metacentric height 3,2 ft / 1,0 m

            Roll period: 12,7 seconds

            Steadiness      - As gun platform (Average = 50 %): 100 %

                                   - Recoil effect (Restricted arc if above 1.00): 0,05

            Seaboat quality  (Average = 1.00): 2,00

Hull form characteristics:

            Hull has raised forecastle, raised quarterdeck ,

              a normal bow and a round stern

            Block coefficient (normal/deep): 0,650 / 0,659

            Length to Beam Ratio: 7,00 : 1

            'Natural speed' for length: 19,47 kts

            Power going to wave formation at top speed: 46 %

            Trim (Max stability = 0, Max steadiness = 100): 50

            Bow angle (Positive = bow angles forward): 3,00 degrees

            Stern overhang: 6,89 ft / 2,10 m

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

                                               Fore end,        Aft end

               - Forecastle:            15,00%,  22,31 ft / 6,80 m,  21,65 ft / 6,60 m

               - Forward deck:       35,00%,  14,44 ft / 4,40 m,  21,65 ft / 6,60 m

               - Aft deck:    35,00%,  21,65 ft / 6,60 m,  14,44 ft / 4,40 m

               - Quarter deck:        15,00%,  21,65 ft / 6,60 m,  21,65 ft / 6,60 m

               - Average freeboard:                      19,17 ft / 5,84 m

Ship space, strength and comments:

            Space - Hull below water (magazines/engines, low = better): 50,6%

                        - Above water (accommodation/working, high = better): 143,6%

            Waterplane Area: 15 714 Square feet or 1 460 Square metres

            Displacement factor (Displacement / loading): 260%

            Structure weight / hull surface area: 153 lbs/sq ft or 746 Kg/sq metre

            Hull strength (Relative):

                        - Cross-sectional: 2,00

                        - Longitudinal: 4,85

                        - Overall: 2,19

            Excellent machinery, storage, compartmentation space

            Excellent accommodation and workspace room

            Ship has slow, easy roll, a good, steady gun platform

            Excellent seaboat, comfortable, can fire her guns in the heaviest weather