Swiss Light Cruiser for 1906

[Desertfox]

Another new ship for NS, this one a light cruiser to serve as a destroyer leader and escort for the Constitutions. 4 will be built.

NSS Seawolf
NSS Sea Dog
NSS Hound
NSS Seafox

Seawolf class, New Switzerland Light Cruiser laid down 1906 (Engine 1909)

Displacement:
   2,605 t light; 2,766 t standard; 3,125 t normal; 3,413 t full load

Dimensions: Length overall / water x beam x draught
   370.00 ft / 370.00 ft x 37.00 ft x 17.00 ft (normal load)
   112.78 m / 112.78 m x 11.28 m  x 5.18 m

Armament:
      5 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1906 Model
     Breech loading guns in deck mounts
     on centreline, evenly spread, 3 raised mounts
      2 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1906 Model
     Breech loading guns in deck mounts
     on side, all amidships
      4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1906 Model
     Quick firing guns in deck mounts
     on side, evenly spread
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1906 Model
     Breech loading guns in deck mounts
     on side, evenly spread
   Weight of broadside 764 lbs / 347 kg
   Shells per gun, main battery: 220
   8 - 19.7" / 500.38 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2.00" / 51 mm         -               -
   3rd:   2.00" / 51 mm         -               -

   - Armour deck: 2.00" / 51 mm, Conning tower: 2.00" / 51 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 21,459 shp / 16,008 Kw = 27.00 kts
   Range 7,000nm at 10.00 kts
   Bunker at max displacement = 647 tons (50% coal)

Complement:
   208 - 271

Cost:
   £0.313 million / $1.251 million

Distribution of weights at normal displacement:
   Armament: 96 tons, 3.1 %
   Armour: 391 tons, 12.5 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 40 tons, 1.3 %
      - Armour Deck: 341 tons, 10.9 %
      - Conning Tower: 9 tons, 0.3 %
   Machinery: 1,009 tons, 32.3 %
   Hull, fittings & equipment: 1,079 tons, 34.5 %
   Fuel, ammunition & stores: 520 tons, 16.7 %
   Miscellaneous weights: 30 tons, 1.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,274 lbs / 1,031 Kg = 21.1 x 6.0 " / 152 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.27
   Metacentric height 1.7 ft / 0.5 m
   Roll period: 11.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.48
   Seaboat quality  (Average = 1.00): 1.29

Hull form characteristics:
   Hull has a flush deck
     and transom stern
   Block coefficient: 0.470
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 22.03 kts
   Power going to wave formation at top speed: 58 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   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:      19.00 ft / 5.79 m
      - Forecastle (20 %):   15.00 ft / 4.57 m
      - Mid (50 %):      15.00 ft / 4.57 m
      - Quarterdeck (15 %):   12.00 ft / 3.66 m
      - Stern:      12.00 ft / 3.66 m
      - Average freeboard:   14.35 ft / 4.37 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 130.4 %
      - Above water (accommodation/working, high = better): 77.4 %
   Waterplane Area: 9,229 Square feet or 857 Square metres
   Displacement factor (Displacement / loading): 97 %
   Structure weight / hull surface area: 62 lbs/sq ft or 305 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.91
      - Longitudinal: 2.40
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[P3D]

Forget oil firing until you have the tech researched.

[The Rock Doctor]

A transom stern?

[Borys]

Ahoj!
No transom stern.
Borys

[Desertfox]

Ill comment once Ithekro's question is answered: http://www.navalism.org/index.php?topic=611.msg3834#msg3834

[The Rock Doctor]

Where's the linkage?  Did you use transoms previously? 

[P3D]

I answered those questions - whuch had essentially nothing to do with this ship which you cannot build within your tech capacity.

[Desertfox]

@ Rocky, no I have not used transoms previously, I even spoke against them when the END destroyers came out. But the rules have become so strict, that the only way I was going to be able to build what I had planned* was by using transoms, despite all my new ships being repeats of ones already in service.

* revealed in 1904:
2 Heavy Cruisers
3 Light Cruisers
17 Destroyers

http://www.navalism.org/index.php?topic=598.0

[P3D]

I am willing to modify the rules to specifically prohibiting transom stern if you really insist.

[The Rock Doctor]

Foxy:  I can sympathize, to a point.  I had much more effective battleships planned than I am currently able to build. 

I'm sure you can still build effective ships without the transom.  They won't as wide a margin of superiority over the rest of us as you'd like, but I reckon you ought to be capable of using the advanced tech you do have to keep ahead of us for a while yet.

[Desertfox]

But what if your entire fleet is built around speed? And suddenly you cant have that speed?



Better? Fits the rules even if its somewhat realistic.

NSS Seawolf, New Switzerland Light Cruiser laid down 1906 (Engine 1909)

Displacement:
   2,687 t light; 2,839 t standard; 3,162 t normal; 3,420 t full load

Dimensions: Length overall / water x beam x draught
   370.00 ft / 370.00 ft x 37.00 ft x 17.20 ft (normal load)
   112.78 m / 112.78 m x 11.28 m  x 5.24 m

Armament:
      5 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1906 Model
     Breech loading guns in deck mounts
     on centreline, evenly spread, 3 raised mounts
      2 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1906 Model
     Breech loading guns in deck mounts
     on side, all amidships
      4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1906 Model
     Quick firing guns in deck mounts
     on side, evenly spread
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1906 Model
     Breech loading guns in deck mounts
     on side, evenly spread
   Weight of broadside 764 lbs / 347 kg
   Shells per gun, main battery: 200
   8 - 19.7" / 500.38 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2.00" / 51 mm         -               -
   3rd:   2.00" / 51 mm         -               -

   - Armour deck: 2.00" / 51 mm, Conning tower: 2.00" / 51 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 25,080 shp / 18,710 Kw = 27.00 kts
   Range 7,000nm at 10.00 kts
   Bunker at max displacement = 581 tons

Complement:
   210 - 274

Cost:
   £0.328 million / $1.314 million

Distribution of weights at normal displacement:
   Armament: 96 tons, 3.0 %
   Armour: 378 tons, 11.9 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 40 tons, 1.3 %
      - Armour Deck: 329 tons, 10.4 %
      - Conning Tower: 9 tons, 0.3 %
   Machinery: 1,101 tons, 34.8 %
   Hull, fittings & equipment: 1,062 tons, 33.6 %
   Fuel, ammunition & stores: 475 tons, 15.0 %
   Miscellaneous weights: 50 tons, 1.6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,902 lbs / 863 Kg = 17.6 x 6.0 " / 152 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.23
   Metacentric height 1.6 ft / 0.5 m
   Roll period: 12.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.47
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.470
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 19.24 kts
   Power going to wave formation at top speed: 58 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   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 (20 %):   14.00 ft / 4.27 m
      - Mid (50 %):      14.00 ft / 4.27 m
      - Quarterdeck (15 %):   12.00 ft / 3.66 m
      - Stern:      12.00 ft / 3.66 m
      - Average freeboard:   13.83 ft / 4.22 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 138.6 %
      - Above water (accommodation/working, high = better): 70.0 %
   Waterplane Area: 8,881 Square feet or 825 Square metres
   Displacement factor (Displacement / loading): 91 %
   Structure weight / hull surface area: 63 lbs/sq ft or 309 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 2.19
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[Borys]

Ahoj!
Very nice.
Borys