HMS Incomparable - 14.03.2010

Na początek może HMS Incomparable - marzenie lorda Fishera,ostateczne ucieleśnienie jego idei wielkiego krążownika, niezwykle silnie uzbrojonego i szybkiego, zdolnego zniszczyć każdy wrogi pancernik.

 

Tutaj dwa linki z danymi Incomparable:
http://www.bobhenneman.in...ablehistory.htm
http://en.wikipedia.org/wiki/HMS_Incomparable

Pokusiłem się o odtworzenie tego projektu w Springsharpie. Od razu widać, że przy takich gabarytach zanurzenie 24stopy czyli nieco ponad 7 m jest nierealne – ja założyłem że to literówka i powinno być 34 stopy, czyli 10,4 m. Ale nawet przy takim zanurzeniu i wyporności standard rzędu 49.000 ton (albo wręcz 46.000ton normalnej jak chce inny link) nie da się „upchać” wymaganych parametrów. Dopiero wyporność standard rzędu 53.000 ton (a pełna 61.000ton!) pozwala osiągnąć je z grubsza (choć i tak nie do końca, bo prędkość max wynosi 34 w., 35 nie udało mi się uzyskać).
Swoją drogą, jakim cudem chciano osiągnąć zasięg 24.000 mil, skoro na paliwo przypadać miało maksymalnie jakieś 3.500 ton (różnica pomiędzy wypornością maksymalną a standardową)? Przy okazji wyszło też, że deklarowane 180.000 KM z pewnością nie wystarczyło by do rozpędzenia jednostki aż do 35 w.

Oto raport:

Incomparable, Great Britain battlecruiser laid down 1917 (Engine 1919)

Displacement:
51 066 t light; 53 252 t standard; 57 792 t normal; 61 424 t full load

Dimensions: Length overall / water x beam x draught
1 000,00 ft / 1 000,00 ft x 104,00 ft x 34,12 ft (normal load)
304,80 m / 304,80 m x 31,70 m x 10,40 m

Armament:
6 - 20,00" / 508 mm guns (3x2 guns), 4 000,00lbs / 1 814,37kg shells, 1917 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward
Main guns limited to end-on fire
3 - 4,02" / 102 mm guns (1x3 guns), 32,38lbs / 14,69kg shells, 1917 Model
Quick firing guns in a turret (on a barbette)
on centreline aft
12 - 4,02" / 102 mm guns (4x3 guns), 32,38lbs / 14,69kg shells, 1917 Model
Quick firing guns in turrets (on barbettes)
on side, all amidships
4 - 2,99" / 76,0 mm guns in single mounts, 13,39lbs / 6,07kg shells, 1917 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
9 - 1,85" / 47,0 mm guns in single mounts, 3,17lbs / 1,44kg shells, 1917 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 24 568 lbs / 11 144 kg
Shells per gun, main battery: 75
8 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 10,0" / 254 mm 579,07 ft / 176,50 m 13,12 ft / 4,00 m
Ends: Unarmoured
Main Belt covers 89% of normal length
Main belt does not fully cover magazines and engineering spaces

- Torpedo Bulkhead:
1,97" / 50 mm 984,25 ft / 300,00 m 21,33 ft / 6,50 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14,0" / 356 mm 9,02" / 229 mm 14,0" / 356 mm
2nd: 2,99" / 76 mm 0,98" / 25 mm 0,98" / 25 mm
3rd: 2,99" / 76 mm 0,98" / 25 mm 0,98" / 25 mm

- Armour deck: 4,02" / 102 mm, Conning tower: 10,00" / 254 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 239 701 shp / 178 817 Kw = 34,00 kts
Range 24 000nm at 10,00 kts
Bunker at max displacement = 8 172 tons

Complement:
1 863 - 2 422

Cost:
£10,107 million / $40,426 million

Distribution of weights at normal displacement:
Armament: 3 071 tons, 5,3%
Armour: 14 903 tons, 25,8%
- Belts: 3 243 tons, 5,6%
- Torpedo bulkhead: 1 529 tons, 2,6%
- Armament: 4 087 tons, 7,1%
- Armour Deck: 5 723 tons, 9,9%
- Conning Tower: 322 tons, 0,6%
Machinery: 8 512 tons, 14,7%
Hull, fittings & equipment: 24 580 tons, 42,5%
Fuel, ammunition & stores: 6 726 tons, 11,6%
Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
74 703 lbs / 33 885 Kg = 18,7 x 20,0 " / 508 mm shells or 8,5 torpedoes
Stability (Unstable if below 1.00): 1,13
Metacentric height 6,6 ft / 2,0 m
Roll period: 16,9 seconds
Steadiness - As gun platform (Average = 50 %): 63 %
- Recoil effect (Restricted arc if above 1.00): 1,02
Seaboat quality (Average = 1.00): 1,25

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0,570
Length to Beam Ratio: 9,62 : 1
'Natural speed' for length: 35,93 kts
Power going to wave formation at top speed: 49 %
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: 34,78 ft / 10,60 m
- Forecastle (23%): 29,53 ft / 9,00 m
- Mid (50%): 29,53 ft / 9,00 m
- Quarterdeck (27%): 22,15 ft / 6,75 m (29,53 ft / 9,00 m before break)
- Stern: 22,15 ft / 6,75 m
- Average freeboard: 28,02 ft / 8,54 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 108,0%
- Above water (accommodation/working, high = better): 220,2%
Waterplane Area: 77 030 Square feet or 7 156 Square metres
Displacement factor (Displacement / loading): 102%
Structure weight / hull surface area: 220 lbs/sq ft or 1 074 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,99
- Longitudinal: 1,10
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily