Swiss Coastal Battleship

[Desertfox]

With the loss of 2 CBs at Sulu Sea, NS is looking for replacements. Note her 21kt max speed, NS is no longer going to build ANY ship under 20kts. 21kts allows her to avoid Arcadias, only BCs can take her as she is capable of meeting ACs on equal terms.

Originaly I was going to replace th 8" and 10" guns with 9", but the heavier weigth of the 10" shell has ressurected that gun. The main armament is optimised for shore bombardment, with a combination of heavy (10") and light (6") shells.

She'll be able to free my heavier units for more important tasks, like sinking enemy ships ;)


Saipan class, New Switzerland Coastal Battleship laid down 1908 (Engine 1910)

Displacement:
   5,150 t light; 5,542 t standard; 6,177 t normal; 6,685 t full load

Dimensions: Length overall / water x beam x draught
   390.00 ft / 390.00 ft x 52.00 ft x 20.50 ft (normal load)
   118.87 m / 118.87 m x 15.85 m  x 6.25 m

Armament:
      4 - 10.00" / 254 mm guns (2x2 guns), 500.00lbs / 226.80kg shells, 1908 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      4 - 6.00" / 152 mm guns (2x2 guns), 108.00lbs / 48.99kg shells, 1908 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, all raised mounts - superfiring
      8 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1908 Model
     Breech loading guns in deck mounts
     on side, all amidships
      4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1908 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1908 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 2,696 lbs / 1,223 kg
   Shells per gun, main battery: 170

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.00" / 178 mm   200.00 ft / 60.96 m   8.00 ft / 2.44 m
   Ends:   3.00" / 76 mm   190.00 ft / 57.91 m   8.00 ft / 2.44 m
   Upper:   3.00" / 76 mm   200.00 ft / 60.96 m   7.00 ft / 2.13 m
     Main Belt covers 79 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7.00" / 178 mm   3.00" / 76 mm      7.00" / 178 mm
   2nd:   3.00" / 76 mm   1.00" / 25 mm      3.00" / 76 mm

   - Armour deck: 1.50" / 38 mm, Conning tower: 5.00" / 127 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 2 shafts, 14,342 shp / 10,699 Kw = 21.00 kts
   Range 10,050nm at 10.00 kts
   Bunker at max displacement = 1,143 tons

Complement:
   347 - 452

Cost:
   £0.546 million / $2.185 million

Distribution of weights at normal displacement:
   Armament: 337 tons, 5.5 %
   Armour: 1,700 tons, 27.5 %
      - Belts: 862 tons, 14.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 420 tons, 6.8 %
      - Armour Deck: 382 tons, 6.2 %
      - Conning Tower: 36 tons, 0.6 %
   Machinery: 593 tons, 9.6 %
   Hull, fittings & equipment: 2,451 tons, 39.7 %
   Fuel, ammunition & stores: 1,026 tons, 16.6 %
   Miscellaneous weights: 70 tons, 1.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8,039 lbs / 3,647 Kg = 16.1 x 10.0 " / 254 mm shells or 1.6 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 2.2 ft / 0.7 m
   Roll period: 14.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0.89
   Seaboat quality  (Average = 1.00): 1.31

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.520
   Length to Beam Ratio: 7.50 : 1
   'Natural speed' for length: 19.75 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 39
   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:      20.00 ft / 6.10 m
      - Forecastle (30 %):   15.00 ft / 4.57 m
      - Mid (40 %):      14.00 ft / 4.27 m
      - Quarterdeck (15 %):   14.00 ft / 4.27 m
      - Stern:      14.00 ft / 4.27 m
      - Average freeboard:   14.95 ft / 4.56 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 75.7 %
      - Above water (accommodation/working, high = better): 106.5 %
   Waterplane Area: 13,763 Square feet or 1,279 Square metres
   Displacement factor (Displacement / loading): 109 %
   Structure weight / hull surface area: 111 lbs/sq ft or 541 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 2.18
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is adequate
   Good seaboat, rides out heavy weather easily

[swamphen]

Should be Engine 1909, BTW.

[Korpen]

With the loss of 2 CBs at Sulu Sea

AAUGH! SPOILER!!

(should be Engine 1909, BTW)

Not at all, that was the first fight of the war, most of the Netherlands fleet vs two CBs...

[Desertfox]

Spoiler? That's OLD news. ;)

I still don't know when I'll build them so don't know what engine I'll use. Note that they'll be using Turbo-Electric Drive. Gives better torpedo protection and range, two very important things for NS, especially the torpedo one, my ships are definately torpedo magnets, The ships I've lost to gunfire in all the wars can be counted in one hand, those lost to underwater damage...

In case you haven't noticed she is an englared version of the ship offered to New Zion.

[Korpen]

Spoiler? That's OLD news. ;)

I still don't know when I'll build them so don't know what engine I'll use. Note that they'll be using Turbo-Electric Drive. Gives better torpedo protection and range, two very important things for NS, especially the torpedo one, my ships are definately torpedo magnets, The ships I've lost to gunfire in all the wars can be counted in one hand, those lost to underwater damage...

In case you haven't noticed she is an englared version of the ship offered to New Zion.

Well, the old CBs were destroyed by gunfire...
And while I understand something has to give, a belt only at most a bit over one meter under the waterline is very vulnerable to getting hits that pass under the belt and armoured deck.
At full speed parts of the bottom of the belt will pretty much be on the waterline due to the bow wave.

[Ithekro]

Well when people play fast and loose with mine warfare in a heavily islanded area, you are going to have underwater problems eventually.

[P3D]

The rules don't like the superfiring 6" turrets.

[Desertfox]

Whats the problem with the 6 inchers? Take USS South Carolina, replace superfiring 12" with 8", now sqeez the ship down reducing main armament by 2", bingo NSS Saipan! She is period appropriate even if the rules aren't.

http://en.wikipedia.org/wiki/USS_South_Carolina_(BB-26)