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Sunday, November 13, 2005

How about a Modernized "Super Queen Victoria" class battleship?

I would choose to design a modernized Super Queen Victoria class ship, as that is my concept and not someone elses. I would go for improved deck armour, anti-torpedo protection, increased beam through bulges of the West Virginia type, and a somewhat higher speed. There should be some benefit to having much ligher weight machinery, after all. I like the twin 4.5in DP mount, so my design has 10 twin mounts, giving 20-4.5in DP guns. I also have a light AA armament. For this to work right, it is apparently necessary to reset the laid down date to the date when the modernization would start, in my case 1939. This is the Springsharp report:
Modernized Super Queen Victoria Class, Great Britain Battleship laid down 1939

Displacement:
 47,129 t light; 49,261 t standard; 51,500 t normal; 53,291 t full load

Dimensions: Length overall / water x beam x draught
 760.00 ft / 760.00 ft x 114.00 ft x 31.00 ft (normal load)
 231.65 m / 231.65 m x 34.75 m  x 9.45 m

Armament:
      8 - 16.00" / 406 mm guns (4x2 guns), 2,048.00lbs / 928.96kg shells, 1939 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread, 2 raised mounts - superfiring
      2 - 16.00" / 406 mm guns (1x2 guns), 2,048.00lbs / 928.96kg shells, 1939 Model
   Breech loading guns in a turret (on a barbette)
   on side amidships
      20 - 4.50" / 114 mm guns (10x2 guns), 45.56lbs / 20.67kg shells, 1939 Model
   Dual purpose guns in turrets (on barbettes)
   on side, evenly spread
      56 - 1.57" / 40.0 mm guns (14x4 guns), 1.95lbs / 0.89kg shells, 1939 Model
   Anti-aircraft guns in deck mounts 
   on side, evenly spread, 8 raised mounts
      36 - 0.79" / 20.0 mm guns (18x2 guns), 0.24lbs / 0.11kg shells, 1939 Model
   Anti-aircraft guns in deck mounts 
   on side, evenly spread, 12 raised mounts
 Weight of broadside 21,509 lbs / 9,756 kg
 Shells per gun, main battery: 90

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 14.0" / 356 mm 530.00 ft / 161.54 m 16.00 ft / 4.88 m
 Ends: 6.00" / 152 mm 230.00 ft / 70.10 m 16.00 ft / 4.88 m
   Main Belt covers 107 % of normal length

   - Torpedo Bulkhead:
  3.00" / 76 mm 530.00 ft / 161.54 m 30.00 ft / 9.14 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 14.0" / 356 mm 9.00" / 229 mm  14.0" / 356 mm
 2nd: 14.0" / 356 mm 9.00" / 229 mm  14.0" / 356 mm
 3rd: 4.00" / 102 mm 4.00" / 102 mm  4.00" / 102 mm
 4th: 1.00" / 25 mm       -         -
 5th: 1.00" / 25 mm       -         -

   - Armour deck: 6.00" / 152 mm, Conning tower: 8.00" / 203 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 122,190 shp / 91,153 Kw = 27.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 4,030 tons

Complement:
 1,709 - 2,222

Cost:
 £25.430 million / $101.721 million

Distribution of weights at normal displacement:
 Armament: 2,689 tons, 5.2 %
 Armour: 20,909 tons, 40.6 %
    - Belts: 5,933 tons, 11.5 %
    - Torpedo bulkhead: 1,765 tons, 3.4 %
    - Armament: 5,462 tons, 10.6 %
    - Armour Deck: 7,510 tons, 14.6 %
    - Conning Tower: 239 tons, 0.5 %
 Machinery: 3,306 tons, 6.4 %
 Hull, fittings & equipment: 20,225 tons, 39.3 %
 Fuel, ammunition & stores: 4,371 tons, 8.5 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   87,838 lbs / 39,843 Kg = 42.9 x 16.0 " / 406 mm shells or 15.8 torpedoes
 Stability (Unstable if below 1.00): 1.09
 Metacentric height 7.2 ft / 2.2 m
 Roll period: 17.8 seconds
 Steadiness - As gun platform (Average = 50 %): 60 %
   - Recoil effect (Restricted arc if above 1.00): 0.69
 Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
 Hull has a flush deck
 Block coefficient: 0.671
 Length to Beam Ratio: 6.67 : 1
 'Natural speed' for length: 27.57 kts
 Power going to wave formation at top speed: 51 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -2.00 degrees
 Stern overhang: -2.00 ft / -0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  32.00 ft / 9.75 m
    - Forecastle (20 %): 27.00 ft / 8.23 m
    - Mid (67 %):  27.00 ft / 8.23 m
    - Quarterdeck (15 %): 19.00 ft / 5.79 m
    - Stern:  19.00 ft / 5.79 m
    - Average freeboard: 25.48 ft / 7.77 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 73.3 %
  - Above water (accommodation/working, high = better): 195.3 %
 Waterplane Area: 67,662 Square feet or 6,286 Square metres
 Displacement factor (Displacement / loading): 105 %
 Structure weight / hull surface area: 221 lbs/sq ft or 1,081 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.96
  - Longitudinal: 1.39
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is excellent
 Room for accommodation and workspaces is excellent
 Good seaboat, rides out heavy weather easily

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