NUS Speculative BB

[Sachmle]

Returning to the split deck layout of earlier designs, this latest BB design will incorporate the new "superfiring" technology currently under development and also include a modest 1 knot speed increase over the preceding Islas Malvinas. It also includes the forward mounted 4" guns in outboard sponsons and the mixed 6"/4" secondary. However, it includes the new 13.5"/40 main guns and therefore almost doubles the firepower of Islas Malvinas on roughly the same sized hull.


5x2x13.5v3, Naciones Unidas Battleship laid down 1914 (Engine 1912)

Displacement:
   24,600 t light; 25,973 t standard; 27,644 t normal; 28,981 t full load

Dimensions: Length overall / water x beam x draught
   557.00 ft / 557.00 ft x 94.00 ft x 28.00 ft (normal load)
   169.77 m / 169.77 m x 28.65 m  x 8.53 m

Armament:
      8 - 13.50" / 343 mm guns (4x2 guns), 1,250.00lbs / 566.99kg shells, 1914 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      2 - 13.50" / 343 mm guns (1x2 guns), 1,250.00lbs / 566.99kg shells, 1914 Model
     Breech loading guns in a turret (on a barbette)
     on centreline amidships
      12 - 6.00" / 152 mm guns in single mounts, 100.00lbs / 45.36kg shells, 1905 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
     10 guns in hull casemates - Limited use in heavy seas
      18 - 4.00" / 102 mm guns in single mounts, 30.00lbs / 13.61kg shells, 1914 Model
     Quick firing guns in casemate mounts
     on side ends, evenly spread, 4 raised mounts - superfiring
     4 guns in hull casemates - Limited use in heavy seas
   Weight of broadside 14,240 lbs / 6,459 kg
   Shells per gun, main battery: 100
   4 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.0" / 330 mm   353.00 ft / 107.59 m   16.00 ft / 4.88 m
   Ends:   4.00" / 102 mm   184.00 ft / 56.08 m   13.00 ft / 3.96 m
     20.00 ft / 6.10 m Unarmoured ends
   Upper:   6.00" / 152 mm   353.00 ft / 107.59 m   8.00 ft / 2.44 m
     Main Belt covers 98 % of normal length

   - Torpedo Bulkhead:
      1.50" / 38 mm   353.00 ft / 107.59 m   35.00 ft / 10.67 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.0" / 330 mm   6.00" / 152 mm      12.0" / 305 mm
   2nd:   13.0" / 330 mm   6.00" / 152 mm      12.0" / 305 mm
   3rd:   6.00" / 152 mm   1.00" / 25 mm      1.00" / 25 mm
   4th:   4.00" / 102 mm   1.00" / 25 mm      1.00" / 25 mm

   - Armour deck: 2.50" / 64 mm, Conning tower: 12.00" / 305 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 45,504 shp / 33,946 Kw = 22.50 kts
   Range 7,500nm at 12.00 kts
   Bunker at max displacement = 3,008 tons

Complement:
   1,071 - 1,393

Cost:
   £3.313 million / $13.253 million

Distribution of weights at normal displacement:
   Armament: 1,772 tons, 6.4 %
   Armour: 10,375 tons, 37.5 %
      - Belts: 4,386 tons, 15.9 %
      - Torpedo bulkhead: 686 tons, 2.5 %
      - Armament: 3,195 tons, 11.6 %
      - Armour Deck: 1,872 tons, 6.8 %
      - Conning Tower: 236 tons, 0.9 %
   Machinery: 1,814 tons, 6.6 %
   Hull, fittings & equipment: 10,289 tons, 37.2 %
   Fuel, ammunition & stores: 3,044 tons, 11.0 %
   Miscellaneous weights: 350 tons, 1.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     35,694 lbs / 16,191 Kg = 29.0 x 13.5 " / 343 mm shells or 5.8 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 5.5 ft / 1.7 m
   Roll period: 16.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 54 %
         - Recoil effect (Restricted arc if above 1.00): 0.67
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.660
   Length to Beam Ratio: 5.93 : 1
   'Natural speed' for length: 23.60 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 45
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: -2.00 ft / -0.61 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      23.00 ft / 7.01 m
      - Forecastle (19 %):   23.00 ft / 7.01 m
      - Mid (51 %):      23.00 ft / 7.01 m (16.00 ft / 4.88 m aft of break)
      - Quarterdeck (15 %):   16.00 ft / 4.88 m
      - Stern:      16.00 ft / 4.88 m
      - Average freeboard:   19.57 ft / 5.96 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 93.0 %
      - Above water (accommodation/working, high = better): 139.8 %
   Waterplane Area: 40,477 Square feet or 3,760 Square metres
   Displacement factor (Displacement / loading): 97 %
   Structure weight / hull surface area: 187 lbs/sq ft or 912 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.66
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent

[The Rock Doctor]

Nice.  Not sure how well the forward 4" would work, but I like the look of them.

[Sachmle]

Nice.  Not sure how well the forward 4" would work, but I like the look of them.

They are the same mounts as on Islas Malvinas, and since we've had no battle or high speed experience, other than shakedowns, we don't know they get REALLY WET in high seas at speed.

[Jefgte]

Nice, I like...
of course  :D


Jef  ;)

[Borys]

The KKK loves it.
Borys