Just fer fun...

[The Rock Doctor]

A notional destroyer-leader/big torpedo-boat once new techs are done.  The gun armament might not work well, given the big shells and small, lively hull, but GC would not know that yet.  In the worst case, they could be removed and replaced with smaller twin mountings.

There might be room for additional torpedoes; I'd have to draw it out to be sure.

If I knock the machinery down by 1,000 hp, I might be able to add another 15 t to the flag facilities.

Ignore the 1950 lay-down; I just checked, it affects nothing.



I'm In Charge Here, GC Leader, type laid down 1950 (Engine 1916)

Displacement:
   1,500 t light; 1,565 t standard; 1,758 t normal; 1,913 t full load

Dimensions: Length overall / water x beam x draught
   381.41 ft / 378.12 ft x 34.45 ft x 11.81 ft (normal load)
   116.26 m / 115.25 m x 10.50 m  x 3.60 m

Armament:
      3 - 5.51" / 140 mm guns in single mounts, 83.72lbs / 37.98kg shells, 1950 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, majority forward, 2 raised mounts - superfiring
      1 - 2.56" / 65.0 mm guns in single mounts, 8.38lbs / 3.80kg shells, 1950 Model
     Breech loading gun in deck mount
     on centreline amidships, 1 raised gun
      4 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1950 Model
     Breech loading guns in deck mounts
     on side, evenly spread
   Weight of broadside 260 lbs / 118 kg
   Shells per gun, main battery: 200
   6 - 21.0" / 533 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.98" / 25 mm      0.98" / 25 mm
   2nd:   0.98" / 25 mm         -               -
   3rd:   0.39" / 10 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 33,000 shp / 24,618 Kw = 32.05 kts
   Range 8,000nm at 10.00 kts (Bunkerage = 349 tons) (410 nm @ flank speed)

Complement:
   135 - 176

Cost:
   £1.615 million / $6.461 million

Distribution of weights at normal displacement:
   Armament: 32 tons, 1.8 %
   Armour: 15 tons, 0.9 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 15 tons, 0.9 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 906 tons, 51.5 %
   Hull, fittings & equipment: 464 tons, 26.4 %
   Fuel, ammunition & stores: 258 tons, 14.7 %
   Miscellaneous weights: 82 tons, 4.7 %
   -25 t:  Fire Control
   -25 t:  Long-Range Wireless
   -12 t:  Torpedoes
   -10 t:  Command Facilities - Flotilla commander
   -6 t:  Weight Reserve
   -4 t:  12 Depth Charges


Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     371 lbs / 168 Kg = 4.4 x 5.5 " / 140 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.17
   Metacentric height 1.4 ft / 0.4 m
   Roll period: 12.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.45
   Seaboat quality  (Average = 1.00): 0.91

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.400
   Length to Beam Ratio: 10.98 : 1
   'Natural speed' for length: 19.45 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 77
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      18.70 ft / 5.70 m
      - Forecastle (20 %):   16.73 ft / 5.10 m
      - Mid (45 %):      16.73 ft / 5.10 m (8.86 ft / 2.70 m aft of break)
      - Quarterdeck (15 %):   8.86 ft / 2.70 m
      - Stern:      8.86 ft / 2.70 m
      - Average freeboard:   12.56 ft / 3.83 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 185.9 %
      - Above water (accommodation/working, high = better): 91.9 %
   Waterplane Area: 8,018 Square feet or 745 Square metres
   Displacement factor (Displacement / loading): 62 %
   Structure weight / hull surface area: 33 lbs/sq ft or 163 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 0.90
      - Overall: 0.53
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

[Guinness]

I think superfiring 5.5"ers forward might make her a bit bow heavy. Maybe go with a superfiring arrangement toward the stern, or all 3 on freeboard level instead? Might make more sense if she has to revert to twin 4" mounts instead. Doing that might make her a little tight on centerline space though...

With a little more freeboard, she could make a respectable destroyer-scout in the mold of post WW1 USN leader designs or large DDs from Italy OTL.

[P3D]

I think superfiring 5.5"ers forward might make her a bit bow heavy. Maybe go with a superfiring arrangement toward the stern, or all 3 on freeboard level instead? Might make more sense if she has to revert to twin 4" mounts instead. Doing that might make her a little tight on centerline space though...

With a little more freeboard, she could make a respectable destroyer-scout in the mold of post WW1 USN leader designs or large DDs from Italy OTL.

It seems to have more freeboard than historical vessels of similar displacement.

[The Rock Doctor]

The freeboard isn't 16' forward and 8' aft, but I don't think it's an unreasonable height either.

The alternate armament arrangements are possible - as simmed, though, this is probably the arrangement that eats up the most hull strength.  The alternatives should be less...er...strength-consuming.

[Guinness]

Here's a potential CSA response. Fits into the doctrine that ship might serve as both a flotilla leader, and a scout:

TRL-1, CSA Torpedo Ram Leader laid down 1916

Displacement:
   1,500 t light; 1,570 t standard; 1,793 t normal; 1,972 t full load

Dimensions: Length overall / water x beam x draught
   362.36 ft / 357.00 ft x 35.75 ft x 12.30 ft (normal load)
   110.45 m / 108.81 m x 10.90 m  x 3.75 m

Armament:
      6 - 4.75" / 121 mm guns (4 mounts), 50.00lbs / 22.68kg shells, 1916 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      4 - 1.00" / 25.4 mm guns (2x2 guns), 0.50lbs / 0.23kg shells, 1916 Model
     Machine guns in deck mounts
     on side, all forward, all raised mounts - superfiring
      2 - 1.58" / 40.0 mm guns in single mounts, 2.00lbs / 0.91kg shells, 1916 Model
     Anti-aircraft guns in deck mounts
     on centreline, all aft, all raised mounts - superfiring
   Weight of broadside 306 lbs / 139 kg
   Shells per gun, main battery: 195
   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         -               -

   - Conning tower: 0.50" / 13 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 35,000 shp / 26,110 Kw = 32.06 kts
   Range 6,300nm at 12.00 kts
   Bunker at max displacement = 403 tons

Complement:
   137 - 179

Cost:
   £0.355 million / $1.420 million

Distribution of weights at normal displacement:
   Armament: 41 tons, 2.3 %
   Armour: 17 tons, 1.0 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 16 tons, 0.9 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 2 tons, 0.1 %
   Machinery: 929 tons, 51.8 %
   Hull, fittings & equipment: 421 tons, 23.5 %
   Fuel, ammunition & stores: 293 tons, 16.4 %
   Miscellaneous weights: 92 tons, 5.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     363 lbs / 164 Kg = 6.8 x 4.8 " / 121 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.25
   Metacentric height 1.6 ft / 0.5 m
   Roll period: 11.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 75 %
         - Recoil effect (Restricted arc if above 1.00): 0.21
   Seaboat quality  (Average = 1.00): 0.88

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.400
   Length to Beam Ratio: 9.99 : 1
   'Natural speed' for length: 18.89 kts
   Power going to wave formation at top speed: 64 %
   Trim (Max stability = 0, Max steadiness = 100): 85
   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:      22.00 ft / 6.71 m
      - Forecastle (15 %):   19.25 ft / 5.87 m
      - Mid (33 %):      17.50 ft / 5.33 m (9.50 ft / 2.90 m aft of break)
      - Quarterdeck (10 %):   9.50 ft / 2.90 m
      - Stern:      9.50 ft / 2.90 m
      - Average freeboard:   12.73 ft / 3.88 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 190.4 %
      - Above water (accommodation/working, high = better): 85.9 %
   Waterplane Area: 7,856 Square feet or 730 Square metres
   Displacement factor (Displacement / loading): 59 %
   Structure weight / hull surface area: 31 lbs/sq ft or 153 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.04
      - 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
25 tons: Long Range Marconi
15 tons: Flotilla Leader facilities
12 tons: Torpedoes (6x21" at 2 tons each)
4 tons: 12 depth charges (launched from stern racks)
11 tons: Reserve

Range at top speed: 14.1 hours, 452 nm
Range at 28.5 knots: 22.9 hours, 655 nm
Range at 15 knots: 3750 nm
Range at 10 knots: 9350 nm

Seakeeping at 28.5 knots: 1.06

[The Rock Doctor]

*Theoretically attaches a limpet mine to the potential CSA response to the notional GC ship*