II. (a) Schlachtkreuzers (Battlecruisers)

Started by swamphen, July 16, 2007, 08:39:09 PM

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swamphen

II. Kreuzers (Cruisers).
..(a) Schlachtkreuzers (Battle-Cruisers).
.....SMS Scharnhorst
.....SMS Gneisenau
.....SMS Moltke
.....SMS Seydlitz
.....SMS Goeben

swamphen

#1
Scharnhorst class

SMS Scharnhorst - laid down 1904, commissioned 1907
SMS Gneisenau - laid down 1904, commissioned 1908

Schlachtkreuzer laid down 1904 (Engine 1909)

Displacement:
   15,873 t light; 16,904 t standard; 18,777 t normal; 20,275 t full load

Dimensions: Length overall / water x beam x draught
   557.74 ft / 557.74 ft x 82.02 ft x 25.43 ft (normal load)
   170.00 m / 170.00 m x 25.00 m  x 7.75 m

Armament:
     6 - 12.01" / 305 mm guns (3x2 guns), 859.80lbs / 390.00kg shells, 1903 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority aft, 1 raised mount aft - superfiring
     8 - 6.69" / 170 mm guns (4x2 guns), 149.91lbs / 68.00kg shells, 1899 Model
     Breech loading guns in turrets (on barbettes)
     on side ends, evenly spread
    26 - 4.13" / 105 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1905 Model
     Quick firing guns in casemate mounts
     on side, evenly spread, 2 raised mounts
     22 guns in hull casemates - Limited use in heavy seas
     4 - 4.13" / 105 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1905 Model
     Quick firing guns in deck mounts
     on side, all aft, all raised mounts - superfiring
    12 - 1.46" / 37.0 mm guns in single mounts, 1.10lbs / 0.50kg shells, 1905 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts

   Weight of broadside 7,430 lbs / 3,370 kg
   Shells per gun, main battery: 150

   4 - 17.7" / 450 mm submerged torpedo tubes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:      11.8" / 300 mm   377.30 ft / 115.00 m   11.48 ft / 3.50 m
   Ends:      3.94" / 100 mm   180.45 ft / 55.00 m   11.48 ft / 3.50 m
   Upper:      1.97" / 50 mm   360.89 ft / 110.00 m   8.20 ft / 2.50 m
     Main Belt covers 104 % of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:      11.8" / 300 mm   5.91" / 150 mm      9.84" / 250 mm
   2nd:      7.87" / 200 mm   1.97" / 50 mm      3.94" / 100 mm
   3rd:      3.94" / 100 mm         -               -
   4th:      0.79" / 20 mm         -               -

  - Armour deck: 1.97" / 50 mm, Conning tower: 11.81" / 300 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 45,000 shp / 33,570 Kw = 24.17 kts
   Range 10,500nm at 10.00 kts (Bunkerage = 3,371 tons)

Complement:
   801 - 1,042

Cost:
   £1.652 million / $6.608 million

Distribution of weights at normal displacement:
   Armament: 934 tons, 5.0 %
   Armour: 5,778 tons, 30.8 %
      - Belts: 2,755 tons, 14.7 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 1,665 tons, 8.9 %
      - Armour Deck: 1,179 tons, 6.3 %
      - Conning Tower: 180 tons, 1.0 %
   Machinery: 2,228 tons, 11.9 %
   Hull, fittings & equipment: 6,782 tons, 36.1 %
   Fuel, ammunition & stores: 2,904 tons, 15.5 %
   Miscellaneous weights: 150 tons, 0.8 %
      - 50 tons, Sehendes Auge
      - 20 tons, Markoni installation
      - 20 tons, flag accomodations
      - 20 tons, VIP accomodations
      - 20 tons, torpedoes, 5 per tube
      - 10 tons, climatisation
      - 10 tons, weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     22,861 lbs / 10,370 Kg = 26.4 x 12.0 " / 305 mm shells or 2.7 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 4.5 ft / 1.4 m
   Roll period: 16.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.59
   Seaboat quality  (Average = 1.00): 1.23

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.565
   Length to Beam Ratio: 6.80 : 1
   'Natural speed' for length: 23.62 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 57
   Bow angle (Positive = bow angles forward): -10.00 degrees
   Stern overhang: -3.28 ft / -1.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:         22.97 ft / 7.00 m
      - Forecastle (20 %):      22.15 ft / 6.75 m
      - Mid (65 %):      18.86 ft / 5.75 m (12.30 ft / 3.75 m aft of break)
      - Quarterdeck (15 %):   12.30 ft / 3.75 m
      - Stern:         12.30 ft / 3.75 m
      - Average freeboard:      18.03 ft / 5.50 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 80.9 %
      - Above water (accommodation/working, high = better): 138.4 %
   Waterplane Area: 32,379 Square feet or 3,008 Square metres
   Displacement factor (Displacement / loading): 105 %
   Structure weight / hull surface area: 148 lbs/sq ft or 724 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.47
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

The Rock Doctor

#2
Moltke class



The Moltke class differs from the Scharnhorsts in being more configured for pursuit of fast armored cruisers and long-range engagement of slower armored cruisers.  In general appearance, however, the two classes are broadly similar.  

Goeben marks the first instance in some time in which the DKB has contracted out construction of a capital unit; she is under construction in the United Norman Kingdom.

SMS Moltke, laid down 1911
SMS Seydlitz, laid down 1911
SMS Goeben, laid down 1912

SK11, laid down 1911 (Engine 1912)

Displacement:
  15,270 t light; 15,873 t standard; 16,999 t normal; 17,900 t full load

Dimensions: Length overall / water x beam x draught
  595.64 ft / 590.55 ft x 78.74 ft x 24.61 ft (normal load)
  181.55 m / 180.00 m x 24.00 m  x 7.50 m

Armament:
     6 - 11.02" / 280 mm guns (3x2 guns), 669.80lbs / 303.82kg shells, 1909 Model
    Breech loading guns in turrets (on barbettes)
    on centreline ends, majority aft, 1 raised mount aft - superfiring
     16 - 4.13" / 105 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1909 Model
    Breech loading guns in casemate mounts
    on side, evenly spread
     4 - 1.97" / 50.0 mm guns in single mounts, 3.86lbs / 1.75kg shells, 1909 Model
    Quick firing guns in deck mounts
    on side, evenly spread, all raised mounts
     4 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.00kg shells, 1909 Model
    Breech loading guns in deck mounts
    on side, evenly spread
  Weight of broadside 4,599 lbs / 2,086 kg
  Shells per gun, main battery: 100
  4 - 19.7" / 500 mm submerged torpedo tubes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
  Main:   7.87" / 200 mm   344.49 ft / 105.00 m   11.81 ft / 3.60 m
  Ends:   2.95" / 75 mm   246.03 ft / 74.99 m   11.81 ft / 3.60 m
  Upper:   2.95" / 75 mm   360.89 ft / 110.00 m   8.01 ft / 2.44 m
    Main Belt covers 90 % of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
  Main:   9.45" / 240 mm   5.91" / 150 mm      9.45" / 240 mm
  3rd:   1.97" / 50 mm         -               -
  4th:   0.39" / 10 mm         -               -

  - Armour deck: 2.56" / 65 mm, Conning tower: 9.45" / 240 mm

Machinery:
  Oil fired boilers, steam turbines,
  Direct drive, 4 shafts, 72,000 shp / 53,712 Kw = 28.01 kts
  Range 10,000nm at 10.00 kts (Bunkerage = 2,027 tons)

Complement:
  743 - 967

Cost:
  £1.419 million / $5.677 million

Distribution of weights at normal displacement:
  Armament: 575 tons, 3.4 %
  Armour: 4,851 tons, 28.5 %
     - Belts: 2,089 tons, 12.3 %
     - Torpedo bulkhead: 0 tons, 0.0 %
     - Armament: 1,134 tons, 6.7 %
     - Armour Deck: 1,494 tons, 8.8 %
     - Conning Tower: 135 tons, 0.8 %
  Machinery: 2,871 tons, 16.9 %
  Hull, fittings & equipment: 6,535 tons, 38.4 %
  Fuel, ammunition & stores: 1,730 tons, 10.2 %
  Miscellaneous weights: 438 tons, 2.6 %
-250 t:  Fire Control
-50 t:  Sehendes Auge
-25 t:  Markoni
-25 t:  Flag Accomodations
-25 t:  VIP Accomodoations
-20 t:  Torpedoes
-10 t:  Climitasation
-33 t:  Weight Reserve

Overall survivability and seakeeping ability:
  Survivability (Non-critical penetrating hits needed to sink ship):
    21,382 lbs / 9,699 Kg = 31.9 x 11.0 " / 280 mm shells or 2.4 torpedoes
  Stability (Unstable if below 1.00): 1.05
  Metacentric height 3.8 ft / 1.2 m
  Roll period: 16.9 seconds
  Steadiness   - As gun platform (Average = 50 %): 70 %
        - Recoil effect (Restricted arc if above 1.00): 0.57
  Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
  Hull has rise forward of midbreak
  Block coefficient: 0.520
  Length to Beam Ratio: 7.50 : 1
  'Natural speed' for length: 24.30 kts
  Power going to wave formation at top speed: 54 %
  Trim (Max stability = 0, Max steadiness = 100): 58
  Bow angle (Positive = bow angles forward): 10.00 degrees
  Stern overhang: -3.28 ft / -1.00 m
  Freeboard (% = measuring location as a percentage of overall length):
     - Stem:      28.87 ft / 8.80 m
     - Forecastle (20 %):   24.93 ft / 7.60 m
     - Mid (55 %):      24.93 ft / 7.60 m (17.06 ft / 5.20 m aft of break)
     - Quarterdeck (15 %):   17.06 ft / 5.20 m
     - Stern:      17.06 ft / 5.20 m
     - Average freeboard:   21.71 ft / 6.62 m

Ship space, strength and comments:
  Space   - Hull below water (magazines/engines, low = better): 86.4 %
     - Above water (accommodation/working, high = better): 172.3 %
  Waterplane Area: 31,556 Square feet or 2,932 Square metres
  Displacement factor (Displacement / loading): 109 %
  Structure weight / hull surface area: 138 lbs/sq ft or 674 Kg/sq metre
  Hull strength (Relative):
     - Cross-sectional: 0.94
     - Longitudinal: 1.61
     - Overall: 1.00
  Hull space for machinery, storage, compartmentation is adequate
  Room for accommodation and workspaces is excellent
  Ship has slow, easy roll, a good, steady gun platform
  Good seaboat, rides out heavy weather easily