Swiss Frigate for 1906

[Desertfox]

A development of the Launceston class. These ships will be the ultimate raider/raider hunters, and will also serve as solitary scouts. Good armor, good speed, long range, and excellent accomodations. Secondaries are arranged with one superfiring aft, one amidship and two foward next to superstructure. TT are in two triples, she also carries a powerful wireless and a crane to permit loading coal mid ocean.

Adventure class, New Switzerland  Frigater laid down 1906 (Engine 1909)

Displacement:
   4,785 t light; 5,026 t standard; 6,446 t normal; 7,581 t full load

Dimensions: Length overall / water x beam x draught
   500.00 ft / 500.00 ft x 50.00 ft x 19.20 ft (normal load)
   152.40 m / 152.40 m x 15.24 m  x 5.85 m

Armament:
      2 - 8.00" / 203 mm guns in single mounts, 256.00lbs / 116.12kg shells, 1906 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
      2 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1906 Model
     Breech loading guns in deck mounts
     on centreline, all aft, all raised mounts - superfiring
      2 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1906 Model
     Breech loading guns in deck mounts
     on side, all amidships
      10 - 0.50" / 12.7 mm guns (5x2 guns), 0.06lbs / 0.03kg shells, 1906 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 763 lbs / 346 kg
   Shells per gun, main battery: 250
   6 - 18.0" / 457.2 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   5.00" / 127 mm   300.00 ft / 91.44 m   9.00 ft / 2.74 m
   Ends:   1.00" / 25 mm   200.00 ft / 60.96 m   9.00 ft / 2.74 m
     Main Belt covers 92 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.00" / 127 mm   2.00" / 51 mm      2.00" / 51 mm
   2nd:   1.00" / 25 mm         -               -

   - Armour deck: 1.00" / 25 mm, Conning tower: 5.00" / 127 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 25,560 shp / 19,068 Kw = 25.00 kts
   Range 15,000nm at 10.00 kts
   Bunker at max displacement = 2,555 tons (90% coal)

Complement:
   359 - 467

Cost:
   £0.425 million / $1.699 million

Distribution of weights at normal displacement:
   Armament: 95 tons, 1.5 %
   Armour: 1,020 tons, 15.8 %
      - Belts: 635 tons, 9.8 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 48 tons, 0.7 %
      - Armour Deck: 300 tons, 4.7 %
      - Conning Tower: 37 tons, 0.6 %
   Machinery: 1,265 tons, 19.6 %
   Hull, fittings & equipment: 2,204 tons, 34.2 %
   Fuel, ammunition & stores: 1,661 tons, 25.8 %
   Miscellaneous weights: 200 tons, 3.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     10,221 lbs / 4,636 Kg = 39.9 x 8.0 " / 203 mm shells or 1.6 torpedoes
   Stability (Unstable if below 1.00): 1.36
   Metacentric height 3.0 ft / 0.9 m
   Roll period: 12.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.26
   Seaboat quality  (Average = 1.00): 1.77

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.470
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 22.36 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 40
   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:      25.00 ft / 7.62 m
      - Forecastle (30 %):   17.00 ft / 5.18 m
      - Mid (50 %):      17.00 ft / 5.18 m
      - Quarterdeck (15 %):   15.00 ft / 4.57 m
      - Stern:      15.00 ft / 4.57 m
      - Average freeboard:   17.31 ft / 5.28 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 80.0 %
      - Above water (accommodation/working, high = better): 123.7 %
   Waterplane Area: 16,218 Square feet or 1,507 Square metres
   Displacement factor (Displacement / loading): 143 %
   Structure weight / hull surface area: 79 lbs/sq ft or 387 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.52
      - 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
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Borys]

Ahoj!
Interesting.
Maybe cut speed to 24 knots, as your turbines are minimally too powerful?
I am not sure about using "mounts" for guns of that size - wouldn't turret&barbette be more appropriate?

EDITED

Borys

[Desertfox]

I could add another shaft, or simply call it machinery overload, as these ships will mostly operate between 10-15kts.

The guns are like the ones on the Hawkins class Cruisers. They dont require a full barbet.

I havent decided yet but I might build these as a companion to the Frigates. These are more cruisers than destroyers.

Fuzhou Bay class, New Switzerland  Oceanic Destroyer laid down 1906 (Engine 1909)

Displacement:
   995 t light; 1,049 t standard; 1,317 t normal; 1,530 t full load

Dimensions: Length overall / water x beam x draught
   320.00 ft / 320.00 ft x 32.00 ft x 10.00 ft (normal load)
   97.54 m / 97.54 m x 9.75 m  x 3.05 m

Armament:
      3 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1906 Model
     Breech loading guns in deck mounts with hoists
     on centreline, evenly spread
     Aft Main mounts separated by engine room
      4 - 1.97" / 50.0 mm guns in single mounts, 3.81lbs / 1.73kg shells, 1906 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 203 lbs / 92 kg
   Shells per gun, main battery: 240
   4 - 20.0" / 508 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.50" / 13 mm         -               -

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 11,179 shp / 8,340 Kw = 25.00 kts
   Range 7,500nm at 10.00 kts
   Bunker at max displacement = 481 tons (90% coal)

Complement:
   109 - 142

Cost:
   £0.132 million / $0.528 million

Distribution of weights at normal displacement:
   Armament: 25 tons, 1.9 %
   Armour: 4 tons, 0.3 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 4 tons, 0.3 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 542 tons, 41.2 %
   Hull, fittings & equipment: 383 tons, 29.1 %
   Fuel, ammunition & stores: 322 tons, 24.4 %
   Miscellaneous weights: 40 tons, 3.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     604 lbs / 274 Kg = 9.7 x 5.0 " / 127 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.53
   Metacentric height 1.9 ft / 0.6 m
   Roll period: 9.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0.37
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.450
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 17.89 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 36
   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 (50 %):      15.00 ft / 4.57 m
      - Quarterdeck (15 %):   12.00 ft / 3.66 m
      - Stern:      12.00 ft / 3.66 m
      - Average freeboard:   14.63 ft / 4.46 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 152.2 %
      - Above water (accommodation/working, high = better): 121.2 %
   Waterplane Area: 6,532 Square feet or 607 Square metres
   Displacement factor (Displacement / loading): 97 %
   Structure weight / hull surface area: 29 lbs/sq ft or 142 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.05
      - Overall: 0.57
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Borys]

The guns are like the ones on the Hawkins class Cruisers. They dont require a full barbet.

I suspect that there could a difference between a single gun with shield, and enclosed twins.

The other ship cannot be a destroyer - your tech allows 750t destroyers.

Borys

[Desertfox]

They are in single mounts not twins.

The second ship is a Light Cruiser not a destroyer (well somewhere in the middle), being slower than my newer destroyers and with more powerful armament. Its clasified as an Oceanic Destroyer by the NSN.

[P3D]

If it has a cross-sectional coefficient less than one, it is classified as a destroyer.
*updating design guidelines to close another loophole*

[Borys]

Ahoj!
Me bad - single mount.
But in this case cut down armour to 1 inch - as per Naval Technology Tree.

Borys

[The Rock Doctor]

Loopholes or not, I gotta agree, Fuzhou Bay's a destroyer in all but name.

Not sure I see the point of her, either.  You want raiders to be operating alone, not in packs, don't you?

[Desertfox]

Well she's neither fish nor fowl, I dont even know if I should build her or not, or to make her bigger. Im planning to build a similar ship for Mexico in WW as an escort for Villa. Adventure will be built, Fuzhou Bay as a dedicated long range escort? probably not.

[Desertfox]

Improved version. Reduces armor for more speed. Extreme ammunition storage space is actually for "special" stuff. Also note the lighter shells.

The mounts are based on the Hawkins class, estimated ROF about 5 RPM. Data for the Hawkins is found here:
http://www.navweaps.com/Weapons/WNBR_75-45_mk6.htm

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

Displacement:
   4,717 t light; 5,003 t standard; 6,379 t normal; 7,479 t full load

Dimensions: Length overall / water x beam x draught
   500.00 ft / 500.00 ft x 50.00 ft x 19.00 ft (normal load)
   152.40 m / 152.40 m x 15.24 m  x 5.79 m

Armament:
      2 - 8.00" / 203 mm guns in single mounts, 250.00lbs / 113.40kg shells, 1906 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
      2 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1906 Model
     Breech loading guns in deck mounts
     on centreline, all aft, all raised mounts - superfiring
      2 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg 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
      10 - 0.50" / 12.7 mm guns (5x2 guns), 0.06lbs / 0.03kg shells, 1906 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 758 lbs / 344 kg
   Shells per gun, main battery: 350
   4 - 20.0" / 508 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.00" / 76 mm   300.00 ft / 91.44 m   9.00 ft / 2.74 m
   Ends:   1.00" / 25 mm   200.00 ft / 60.96 m   9.00 ft / 2.74 m
     Main Belt covers 92 % of normal length

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

   - Armour deck: 1.00" / 25 mm, Conning tower: 3.00" / 76 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 30,132 shp / 22,478 Kw = 27.00 kts
   Range 15,000nm at 10.00 kts
   Bunker at max displacement = 2,477 tons (90% coal)

Complement:
   356 - 463

Cost:
   £0.455 million / $1.819 million

Distribution of weights at normal displacement:
   Armament: 96 tons, 1.5 %
   Armour: 770 tons, 12.1 %
      - Belts: 407 tons, 6.4 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 29 tons, 0.5 %
      - Armour Deck: 312 tons, 4.9 %
      - Conning Tower: 22 tons, 0.3 %
   Machinery: 1,492 tons, 23.4 %
   Hull, fittings & equipment: 2,208 tons, 34.6 %
   Fuel, ammunition & stores: 1,662 tons, 26.1 %
   Miscellaneous weights: 150 tons, 2.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     9,045 lbs / 4,103 Kg = 35.3 x 8.0 " / 203 mm shells or 1.4 torpedoes
   Stability (Unstable if below 1.00): 1.38
   Metacentric height 3.1 ft / 0.9 m
   Roll period: 11.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.25
   Seaboat quality  (Average = 1.00): 1.52

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: 25.61 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 46
   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:      25.00 ft / 7.62 m
      - Forecastle (30 %):   17.00 ft / 5.18 m
      - Mid (50 %):      17.00 ft / 5.18 m
      - Quarterdeck (15 %):   15.00 ft / 4.57 m
      - Stern:      15.00 ft / 4.57 m
      - Average freeboard:   17.31 ft / 5.28 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 92.2 %
      - Above water (accommodation/working, high = better): 132.8 %
   Waterplane Area: 16,854 Square feet or 1,566 Square metres
   Displacement factor (Displacement / loading): 136 %
   Structure weight / hull surface area: 79 lbs/sq ft or 385 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.52
      - 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
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Borys]

Ahoj!
You did note this part:
This gun and its projectiles were rather heavy for use in a simple, open mount and proved somewhat cumbersome in service.

Considering that you just added 50 pounds to the projectile, the "cumbersomeness" probably just got worse :)

And please decrease the shield thickness to one inch.

Borys

[Desertfox]

Course I did, the guns arent perfect, but they should do the job adequately. It has enough Misc weight to imporve the mounts, and I can reduce the shell weight, since these will use light weight shells anyway.

The Hawkins had 3" shield armor