CSA Speculative Design Studies

[The Rock Doctor]

No!!!!!!!

Looks pretty good - dare I ask if you're going to sim her with an armament?

[Guinness]

I could... But I'd want to keep it under the 2% rule line.

But honestly one or two of these charging about the oceans have way too much value just hauling troops to me. It would take a BC to catch them, and they wouldn't be travelling alone.

[Guinness]

Just for fun, here's one with AMC sort of armament:

Leviathan with armament, Confederate States of America Liner laid down 1920

Displacement:
   40,318 t light; 41,439 t standard; 49,963 t normal; 56,783 t full load

Dimensions: Length overall / water x beam x draught
   885.00 ft / 864.50 ft x 102.00 ft x 30.51 ft (normal load)
   269.75 m / 263.50 m x 31.09 m  x 9.30 m

Armament:
      2 - 5.50" / 140 mm guns in single mounts, 75.00lbs / 34.02kg shells, 1920 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread
      8 - 5.50" / 140 mm guns in single mounts, 75.00lbs / 34.02kg shells, 1920 Model
     Breech loading guns in deck mounts
     on side, all amidships
      2 - 1.58" / 40.0 mm guns in single mounts, 2.00lbs / 0.91kg shells, 1920 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      12 - 1.00" / 25.4 mm guns (6x2 guns), 0.50lbs / 0.23kg shells, 1920 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 760 lbs / 345 kg
   Shells per gun, main battery: 250

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 146,026 shp / 108,936 Kw = 29.00 kts
   Range 8,193nm at 23.00 kts
   Bunker at max displacement = 15,343 tons

Complement:
   1,670 - 2,172

Cost:
   £5.234 million / $20.936 million

Distribution of weights at normal displacement:
   Armament: 105 tons, 0.2 %
   Machinery: 5,106 tons, 10.2 %
   Hull, fittings & equipment: 13,473 tons, 27.0 %
   Fuel, ammunition & stores: 9,645 tons, 19.3 %
   Miscellaneous weights: 21,634 tons, 43.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     69,212 lbs / 31,394 Kg = 832.0 x 5.5 " / 140 mm shells or 4.1 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 6.2 ft / 1.9 m
   Roll period: 17.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 62 %
         - Recoil effect (Restricted arc if above 1.00): 0.02
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle, raised quarterdeck
   Block coefficient: 0.650
   Length to Beam Ratio: 8.48 : 1
   'Natural speed' for length: 29.40 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 31
   Bow angle (Positive = bow angles forward): 14.04 degrees
   Stern overhang: 10.00 ft / 3.05 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      42.00 ft / 12.80 m
      - Forecastle (15 %):   40.00 ft / 12.19 m (32.00 ft / 9.75 m aft of break)
      - Mid (50 %):      30.00 ft / 9.14 m
      - Quarterdeck (15 %):   39.00 ft / 11.89 m (31.00 ft / 9.45 m before break)
      - Stern:      42.00 ft / 12.80 m
      - Average freeboard:   33.72 ft / 10.28 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 82.5 %
      - Above water (accommodation/working, high = better): 236.9 %
   Waterplane Area: 67,550 Square feet or 6,276 Square metres
   Displacement factor (Displacement / loading): 153 %
   Structure weight / hull surface area: 132 lbs/sq ft or 646 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.27
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Misc Weight (Liner):

50t: Two Long Range Wireless Sets
6800t: 400 1st Class Passengers
5100t: 600 2nd Class Passengers
6684t: 1750 3rd Class Passengers
3000t: Cargo

Misc Weights (as troop transport):
50t: Two long range wireless sets
18314t: Between 7000 and 9500 troops (depending on distance to be traveled)
3000t: Cargo

[P3D]

I could... But I'd want to keep it under the 2% rule line.

But honestly one or two of these charging about the oceans have way too much value just hauling troops to me. It would take a BC to catch them, and they wouldn't be travelling alone.

Commerce raiders should operate alone. If they need an escort with about the same armament, there's no need to send such a big ship into the seas, as I don't see anything a 5000t cruiser escort could not do but an 40,000t commerce raider could (besides soaking up damage).

Also, for liners I prefer to declare range at close to max speed (say 28kts in this case). The machinery is there to steam fast all the way, unlike naval vessels which are operating around 12kts 90% the time.

[Guinness]

Commerce raiders should operate alone. If they need an escort with about the same armament, there's no need to send such a big ship into the seas, as I don't see anything a 5000t cruiser escort could not do but an 40,000t commerce raider could (besides soaking up damage).

This is why I find this ship more valuable just for hauling troops around.

Also, for liners I prefer to declare range at close to max speed (say 28kts in this case). The machinery is there to steam fast all the way, unlike naval vessels which are operating around 12kts 90% the time.

This was a question of trying to figure out just what I wanted her "cruising speed" to be. At 27.5 knots, the range is 5050 nm. Could probably easily be 7000nm if I use up some of the extra misc weight it's got.

[Guinness]

And today's I'm working but I'd rather not be designs: a destroyer and minelayer that might go in an emergency CSA building program in 1917 (should such a thing prove necessary):

500t Emergency TR, CSA Torpedo Ram laid down 1917 (Engine 1916)

Displacement:
   500 t light; 520 t standard; 603 t normal; 669 t full load

Dimensions: Length overall / water x beam x draught
   271.00 ft / 263.00 ft x 23.90 ft x 7.99 ft (normal load)
   82.60 m / 80.16 m x 7.28 m  x 2.44 m

Armament:
      3 - 3.50" / 88.9 mm guns in single mounts, 20.00lbs / 9.07kg shells, 1917 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread, 1 raised mount
     Aft Main mounts separated by engine room
      4 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1917 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 62 lbs / 28 kg
   Shells per gun, main battery: 200
   4 - 21.0" / 533.4 mm above water torpedoes

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 16,000 shp / 11,936 Kw = 30.17 kts
   Range 4,500nm at 12.00 kts
   Bunker at max displacement = 150 tons

Complement:
   60 - 79

Cost:
   £0.123 million / $0.493 million

Distribution of weights at normal displacement:
   Armament: 8 tons, 1.4 %
   Machinery: 310 tons, 51.4 %
   Hull, fittings & equipment: 172 tons, 28.6 %
   Fuel, ammunition & stores: 102 tons, 17.0 %
   Miscellaneous weights: 10 tons, 1.7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     163 lbs / 74 Kg = 7.6 x 3.5 " / 89 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.21
   Metacentric height 0.8 ft / 0.3 m
   Roll period: 11.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.18
   Seaboat quality  (Average = 1.00): 0.88

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.420
   Length to Beam Ratio: 11.00 : 1
   'Natural speed' for length: 16.22 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 80
   Bow angle (Positive = bow angles forward): 23.95 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      18.00 ft / 5.49 m
      - Forecastle (10 %):   14.00 ft / 4.27 m
      - Mid (42 %):      9.00 ft / 2.74 m
      - Quarterdeck (10 %):   8.50 ft / 2.59 m
      - Stern:      8.50 ft / 2.59 m
      - Average freeboard:   10.29 ft / 3.14 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 178.6 %
      - Above water (accommodation/working, high = better): 68.8 %
   Waterplane Area: 3,919 Square feet or 364 Square metres
   Displacement factor (Displacement / loading): 48 %
   Structure weight / hull surface area: 23 lbs/sq ft or 110 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.55
      - Overall: 0.56
   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
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Trial Speed: 32.53 knots
Misc Weights: 8 tons: 4 21 inch torpedoes, 2 tons: forward gun shield (1" armor)
Range at max speed: 353 nm, 11.7 hours
Range at 28.5 knots: 417 nm, 14.6
Range at 25 nnots: 632 nm, 25.3 hours
Range at 20 knots: 1224 nm
Range at 15 knots: 2637 nm
Seakeeping at 28.5 knots: 1.02

and a minelayer derivative:

500t Emergency TR Minelayer, CSA Torpedo Ram laid down 1917 (Engine 1916)

Displacement:
   500 t light; 517 t standard; 600 t normal; 667 t full load

Dimensions: Length overall / water x beam x draught
   274.00 ft / 263.00 ft x 23.90 ft x 7.96 ft (normal load)
   83.51 m / 80.16 m x 7.28 m  x 2.43 m

Armament:
      2 - 3.50" / 88.9 mm guns in single mounts, 20.00lbs / 9.07kg shells, 1917 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread
      4 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1917 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 42 lbs / 19 kg
   Shells per gun, main battery: 200

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 13,500 shp / 10,071 Kw = 29.01 kts
   Range 4,500nm at 12.00 kts
   Bunker at max displacement = 149 tons

Complement:
   59 - 78

Cost:
   £0.117 million / $0.467 million

Distribution of weights at normal displacement:
   Armament: 6 tons, 0.9 %
   Machinery: 300 tons, 49.9 %
   Hull, fittings & equipment: 164 tons, 27.4 %
   Fuel, ammunition & stores: 100 tons, 16.6 %
   Miscellaneous weights: 31 tons, 5.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     177 lbs / 80 Kg = 8.2 x 3.5 " / 89 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.28
   Metacentric height 0.9 ft / 0.3 m
   Roll period: 10.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.10
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.420
   Length to Beam Ratio: 11.00 : 1
   'Natural speed' for length: 16.22 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 23.95 degrees
   Stern overhang: 3.00 ft / 0.91 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      18.00 ft / 5.49 m
      - Forecastle (10 %):   14.00 ft / 4.27 m
      - Mid (42 %):      9.00 ft / 2.74 m
      - Quarterdeck (10 %):   8.50 ft / 2.59 m
      - Stern:      8.50 ft / 2.59 m
      - Average freeboard:   10.29 ft / 3.14 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 174.1 %
      - Above water (accommodation/working, high = better): 124.6 %
   Waterplane Area: 3,919 Square feet or 364 Square metres
   Displacement factor (Displacement / loading): 55 %
   Structure weight / hull surface area: 22 lbs/sq ft or 105 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.52
      - Overall: 0.56
   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

Trial Speed: 31.3 knots
Misc Weights: 29 tons: 29 mines, 2 tons: forward gun shield (1" armor)
Range at max speed: 396 nm, 13.66 hours
Range at 25 knots: 634 nm, 25.36 hours
Range at 20 knots: 1229 nm
Range at 15 knots: 2646 nm
Seakeeping at 28.5 knots: 1.04

[Guinness]

The next generation Confederate fleet torpedo ram, which is likely to be built alongside the preceding F-class. While the F-class is intended to screen and scout with the scouting force, the G-class is purely for screening the battlefleet:

G-Class 4x4.75, CSA Torpedo Ram laid down 1918 (Engine 1916)

Displacement:
   1,150 t light; 1,202 t standard; 1,385 t normal; 1,531 t full load

Dimensions: Length overall / water x beam x draught
   350.00 ft / 345.00 ft x 32.00 ft x 10.45 ft (normal load)
   106.68 m / 105.16 m x 9.75 m  x 3.19 m

Armament:
      4 - 4.75" / 121 mm guns in single mounts, 50.00lbs / 22.68kg shells, 1918 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      4 - 0.79" / 20.0 mm guns (2x2 guns), 0.25lbs / 0.11kg shells, 1918 Model
     Anti-aircraft guns in deck mounts
     on side, all forward, all raised mounts - superfiring
      1 - 1.58" / 40.0 mm guns in single mounts, 2.00lbs / 0.91kg shells, 1918 Model
     Anti-aircraft gun in deck mount
     on centreline aft, 1 raised gun
   Weight of broadside 203 lbs / 92 kg
   Shells per gun, main battery: 210
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm         -               -
   3rd:   0.50" / 13 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 30,000 shp / 22,380 Kw = 31.99 kts
   Range 6,000nm at 12.00 kts
   Bunker at max displacement = 329 tons

Complement:
   113 - 147

Cost:
   £0.330 million / $1.318 million

Distribution of weights at normal displacement:
   Armament: 27 tons, 2.0 %
   Armour: 11 tons, 0.8 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 11 tons, 0.8 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 726 tons, 52.5 %
   Hull, fittings & equipment: 336 tons, 24.3 %
   Fuel, ammunition & stores: 234 tons, 16.9 %
   Miscellaneous weights: 50 tons, 3.6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     301 lbs / 136 Kg = 5.6 x 4.8 " / 121 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.31
   Metacentric height 1.5 ft / 0.4 m
   Roll period: 11.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.19
   Seaboat quality  (Average = 1.00): 0.86

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.420
   Length to Beam Ratio: 10.78 : 1
   'Natural speed' for length: 18.57 kts
   Power going to wave formation at top speed: 65 %
   Trim (Max stability = 0, Max steadiness = 100): 81
   Bow angle (Positive = bow angles forward): 13.70 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      20.50 ft / 6.25 m
      - Forecastle (15 %):   17.75 ft / 5.41 m
      - Mid (40 %):      16.00 ft / 4.88 m (8.00 ft / 2.44 m aft of break)
      - Quarterdeck (10 %):   8.00 ft / 2.44 m
      - Stern:      8.00 ft / 2.44 m
      - Average freeboard:   11.80 ft / 3.60 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 188.6 %
      - Above water (accommodation/working, high = better): 79.1 %
   Waterplane Area: 6,883 Square feet or 639 Square metres
   Displacement factor (Displacement / loading): 55 %
   Structure weight / hull surface area: 28 lbs/sq ft or 138 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 0.94
      - Overall: 0.53
   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
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Misc Weights:
25 tons: Fire control
12 tons: Torpedoes
4 tons: 12 depth charges (launched from stern racks)
9 tons: Reserve

Seakeeping at 28.5 knots: 1.12
Trial Speed: 32.84

Range at 15 knots: 3605 nm
Range at 20 knots: 1730 nm
Range at 25 knots: 925 nm
Range at 28.5 knots: 620 nm, 21.75 hours
Range at top speed: 429 nm, 13.4 hours

[TexanCowboy]

A economy TB. Something to dump the extra BP into. Built to civilian standard.

Haiti, CSA Economy Civilian TB laid down 1918 (Engine 1916)

Displacement:
   200 t light; 206 t standard; 230 t normal; 249 t full load

Dimensions: Length overall / water x beam x draught
   201.05 ft / 200.00 ft x 16.80 ft x 6.30 ft (normal load)
   61.28 m / 60.96 m x 5.12 m  x 1.92 m

Armament:
      1 - 3.50" / 88.9 mm guns in single mounts, 21.44lbs / 9.72kg shells, 1918 Model
     Breech loading gun in deck mount
     on centreline aft, 1 raised gun
      1 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1918 Model
     Machine gun in deck mount
     on centreline forward, 1 raised gun
   Weight of broadside 22 lbs / 10 kg
   Shells per gun, main battery: 150
   3 - 14.0" / 355.6 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.50" / 13 mm         -               -
   2nd:   0.50" / 13 mm         -               -

Machinery:
   Coal and oil fired boilers, steam turbines,
   No drive to shaft, 1 shaft, 5,169 shp / 3,856 Kw = 26.00 kts
   Range 3,300nm at 10.00 kts
   Bunker at max displacement = 43 tons (10% coal)

Complement:
   29 - 38

Cost:
   £0.051 million / $0.204 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 1.2 %
   Armour: 1 tons, 0.4 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 1 tons, 0.4 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 116 tons, 50.3 %
   Hull, fittings & equipment: 77 tons, 33.6 %
   Fuel, ammunition & stores: 30 tons, 13.2 %
   Miscellaneous weights: 3 tons, 1.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     76 lbs / 35 Kg = 3.6 x 3.5 " / 89 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.33
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 9.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 61 %
         - Recoil effect (Restricted arc if above 1.00): 0.20
   Seaboat quality  (Average = 1.00): 1.22

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.380
   Length to Beam Ratio: 11.90 : 1
   'Natural speed' for length: 14.14 kts
   Power going to wave formation at top speed: 64 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 5.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      12.00 ft / 3.66 m
      - Forecastle (20 %):   8.00 ft / 2.44 m
      - Mid (50 %):      8.00 ft / 2.44 m
      - Quarterdeck (15 %):   8.00 ft / 2.44 m
      - Stern:      8.00 ft / 2.44 m
      - Average freeboard:   8.32 ft / 2.54 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 173.1 %
      - Above water (accommodation/working, high = better): 73.8 %
   Waterplane Area: 1,933 Square feet or 180 Square metres
   Displacement factor (Displacement / loading): 55 %
   Structure weight / hull surface area: 17 lbs/sq ft or 82 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.44
      - Overall: 0.59
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Good seaboat, rides out heavy weather easily

[Tanthalas]

Being from Texas I would have thought you would realise the CSA fleet dosnt use coal for anything...

[TexanCowboy]

I do. The thing is, it needs to be able to use whatever is availible. And there are substanial coal mines in Virgina. The whole point of this ship is to use whatever's availible.

[hooper82]

6 tons of weapons on a 230ton is 2.6%, not able to be built to Civilian standards.

[TexanCowboy]

Altered. Torpedoes are now Type 1890, but modifed so that it runs on more modern fuel.

Haiti, CSA Economy Civilian TB laid down 1918 (Engine 1916)

Displacement:
   200 t light; 207 t standard; 230 t normal; 248 t full load

Dimensions: Length overall / water x beam x draught
   200.96 ft / 200.00 ft x 16.80 ft x 6.30 ft (normal load)
   61.25 m / 60.96 m x 5.12 m  x 1.92 m

Armament:
      1 - 3.50" / 88.9 mm guns in single mounts, 21.44lbs / 9.73kg shells, 1918 Model
     Breech loading gun in deck mount
     on centreline aft
      1 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1918 Model
     Machine gun in deck mount
     on centreline forward
   Weight of broadside 22 lbs / 10 kg
   Shells per gun, main battery: 150
   3 - 14.0" / 355.6 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.10" / 3 mm         -               -
   2nd:   0.10" / 3 mm         -               -

Machinery:
   Coal and oil fired boilers, steam turbines,
   No drive to shaft, 1 shaft, 6,064 shp / 4,524 Kw = 27.00 kts
   Range 3,200nm at 10.00 kts
   Bunker at max displacement = 42 tons (10% coal)

Complement:
   29 - 38

Cost:
   £0.052 million / $0.208 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 1.2 %
   Armour: 0 tons, 0.1 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 0 tons, 0.1 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 119 tons, 51.9 %
   Hull, fittings & equipment: 76 tons, 33.3 %
   Fuel, ammunition & stores: 30 tons, 12.9 %
   Miscellaneous weights: 2 tons, 0.7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     73 lbs / 33 Kg = 3.4 x 3.5 " / 89 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.38
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 9.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 54 %
         - Recoil effect (Restricted arc if above 1.00): 0.14
   Seaboat quality  (Average = 1.00): 1.07

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.380
   Length to Beam Ratio: 11.90 : 1
   'Natural speed' for length: 14.14 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 5.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      11.00 ft / 3.35 m
      - Forecastle (20 %):   7.90 ft / 2.41 m
      - Mid (50 %):      7.90 ft / 2.41 m
      - Quarterdeck (15 %):   7.90 ft / 2.41 m
      - Stern:      7.90 ft / 2.41 m
      - Average freeboard:   8.15 ft / 2.48 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 177.5 %
      - Above water (accommodation/working, high = better): 72.9 %
   Waterplane Area: 1,933 Square feet or 180 Square metres
   Displacement factor (Displacement / loading): 48 %
   Structure weight / hull surface area: 17 lbs/sq ft or 83 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.33
      - Overall: 0.59
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped

[The Rock Doctor]

More to the point - while we tend to allow sloops and minesweepers as "merchie" ships, torpedo-boats are kinda pushing the limits.

Bear in mind - torpedos count as armament for weight purposes.

[Guinness]

Um, it needs an engine...

With my mod hat on, I'll put it more bluntly: I do not think it possible to build ships to the DD/TB rules while also using the merchant rules.

At any rate, I think that MTBs would have much better bang for the buck in this weight class, even if they are more expensive. The 1914 Type C MTB would ship two full sized tubes. I'm not sure where you are thinking of operating, but between the extensive base network and the smallish cruiser-tender conversions the CSA has, most forward operating scenarios for a ship of this size ought to be covered.

[TexanCowboy]

I know. This is just something to do with the left-over BP, as it .05 BP each. And, honestly, it has better range.