North Atlantic cruiser

Started by Borys, October 28, 2007, 11:58:09 AM

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Borys

Ahoj!
It's the lowered quarteredeck which is the problem.
Borys
NEDS - Not Enough Deck Space for all those guns and torpedos;
Bambi must DIE!

The Rock Doctor

It's just a foot lower than the quarterdeck on the Hapsburger design. 

*Grumbles*

Borys

Ahoj!
Dug up an old design, tinkered a bit ...
The ultimate fishing patrol boat?

SMS Szekler, Austria-Hungary Fast Cruiser laid down 1909

Displacement:
   3 719 t light; 3 868 t standard; 4 822 t normal; 5 585 t full load

Dimensions: Length overall / water x beam x draught
   394,08 ft / 393,70 ft x 42,65 ft x 18,04 ft (normal load)
   120,12 m / 120,00 m x 13,00 m  x 5,50 m

Armament:
      4 - 6,00" / 152 mm guns in single mounts, 100,00lbs / 45,36kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
      4 - 3,00" / 76,2 mm guns in single mounts, 13,50lbs / 6,12kg shells, 1909 Model
     Quick firing guns in deck mounts
     on side, all amidships
      4 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1909 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 454 lbs / 206 kg
   Shells per gun, main battery: 200
   8 - 19,7" / 500 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,00" / 76 mm   280,00 ft / 85,34 m   13,00 ft / 3,96 m
   Ends:   Unarmoured
     Main Belt covers 109% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1,00" / 25 mm         -               -

   - Armour deck: 0,98" / 25 mm, Conning tower: 0,98" / 25 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 3 shafts, 28 527 shp / 21 281 Kw = 26,00 kts
   Range 8 000nm at 12,00 kts
   Bunker at max displacement = 1 717 tons (100% coal)

Complement:
   289 - 376

Cost:
   £0,381 million / $1,524 million

Distribution of weights at normal displacement:
   Armament: 61 tons, 1,3%
   Armour: 687 tons, 14,3%
      - Belts: 452 tons, 9,4%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 14 tons, 0,3%
      - Armour Deck: 215 tons, 4,5%
      - Conning Tower: 6 tons, 0,1%
   Machinery: 1 426 tons, 29,6%
   Hull, fittings & equipment: 1 505 tons, 31,2%
   Fuel, ammunition & stores: 1 103 tons, 22,9%
   Miscellaneous weights: 40 tons, 0,8%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5 304 lbs / 2 406 Kg = 49,1 x 6,0 " / 152 mm shells or 1,0 torpedoes
   Stability (Unstable if below 1.00): 1,35
   Metacentric height 2,4 ft / 0,7 m
   Roll period: 11,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,30
   Seaboat quality  (Average = 1.00): 1,53

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,557
   Length to Beam Ratio: 9,23 : 1
   'Natural speed' for length: 19,84 kts
   Power going to wave formation at top speed: 59 %
   Trim (Max stability = 0, Max steadiness = 100): 46
   Bow angle (Positive = bow angles forward): 1,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      21,82 ft / 6,65 m
      - Forecastle (25%):   21,10 ft / 6,43 m
      - Mid (50%):      21,10 ft / 6,43 m (13,88 ft / 4,23 m aft of break)
      - Quarterdeck (15%):   13,88 ft / 4,23 m
      - Stern:      13,88 ft / 4,23 m
      - Average freeboard:   17,56 ft / 5,35 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 107,1%
      - Above water (accommodation/working, high = better): 93,4%
   Waterplane Area: 11 796 Square feet or 1 096 Square metres
   Displacement factor (Displacement / loading): 119%
   Structure weight / hull surface area: 67 lbs/sq ft or 327 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,90
      - Longitudinal: 2,62
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

NEDS - Not Enough Deck Space for all those guns and torpedos;
Bambi must DIE!

The Rock Doctor

Handy, so long as you don't need to push around the various 8" armed cruisers poking around the Atlantic.  I like that she can fit into a Type 1 dock.

Not sure I'd want that much seakeeping - even in the Atlantic - but to each their own.

Borys

Ahoj!
The lenght was chosen on purpose :)
And I cheerfuly admit that she is undergunned :)
Borys
NEDS - Not Enough Deck Space for all those guns and torpedos;
Bambi must DIE!