Just a concept so far, a dedicated MTB destroyer, basically a mini-version of the Izokaze class destroyers, with dedicated short-range shallow-running torpedoes for use against small fast ships.

Improved Kamikaze, Japan Torpedo Boat laid down 1915

Displacement:
   350 t light; 368 t standard; 399 t normal; 424 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (252.47 ft / 250.00 ft) x 21.00 ft x (7.00 / 7.27 ft)
   (76.95 m / 76.20 m) x 6.40 m  x (2.13 / 2.22 m)

Armament:
      4 - 3.00" / 76.2 mm 45.0 cal guns - 13.62lbs / 6.18kg shells, 150 per gun
     Quick firing guns in deck mounts, 1915 Model
     4 x Single mounts on centreline, evenly spread
      1 raised mount
      12 - 2.00" / 50.8 mm 50.0 cal guns - 4.23lbs / 1.92kg shells, 200 per gun
     Quick firing guns in deck mounts, 1915 Model
     4 x Triple mounts on sides, evenly spread
      Weight of broadside 105 lbs / 48 kg

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 10,283 shp / 7,671 Kw = 29.00 kts
   Range 1,400nm at 14.00 kts
   Bunker at max displacement = 56 tons

Complement:
   44 - 58

Cost:
   £0.067 million / $0.268 million

Distribution of weights at normal displacement:
   Armament: 20 tons, 5.1 %
      - Guns: 20 tons, 5.1 %
   Machinery: 200 tons, 50.2 %
   Hull, fittings & equipment: 114 tons, 28.6 %
   Fuel, ammunition & stores: 49 tons, 12.4 %
   Miscellaneous weights: 15 tons, 3.8 %
      - On freeboard deck: 10 tons
      - Above deck: 5 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     96 lbs / 44 Kg = 7.1 x 3.0 " / 76 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 11.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.41
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.380 / 0.389
   Length to Beam Ratio: 11.90 : 1
   'Natural speed' for length: 15.81 kts
   Power going to wave formation at top speed: 64 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   32.00 %,  14.00 ft / 4.27 m,  14.00 ft / 4.27 m
      - Forward deck:   30.00 %,  7.00 ft / 2.13 m,  7.00 ft / 2.13 m
      - Aft deck:   23.00 %,  7.00 ft / 2.13 m,  7.00 ft / 2.13 m
      - Quarter deck:   15.00 %,  7.00 ft / 2.13 m,  7.00 ft / 2.13 m
      - Average freeboard:      9.24 ft / 2.82 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 176.9 %
      - Above water (accommodation/working, high = better): 96.3 %
   Waterplane Area: 3,189 Square feet or 296 Square metres
   Displacement factor (Displacement / loading): 47 %
   Structure weight / hull surface area: 20 lbs/sq ft or 98 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.55
      - Overall: 0.56
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

10t for 4x14" Torpedo Tubes
5t for 1908 FC

And a minimalistic version of the same.

Improved Kamikaze, Japan MTB Killer laid down 1914

Displacement:
   192 t light; 205 t standard; 221 t normal; 235 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (202.12 ft / 200.00 ft) x 17.00 ft x (6.00 / 6.23 ft)
   (61.60 m / 60.96 m) x 5.18 m  x (1.83 / 1.90 m)

Armament:
      12 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 300 per gun
     Quick firing guns in deck mounts, 1914 Model
     4 x Single mounts on centreline, evenly spread
      Weight of broadside 48 lbs / 22 kg

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 5,930 shp / 4,423 Kw = 27.00 kts
   Range 1,000nm at 14.00 kts
   Bunker at max displacement = 30 tons

Complement:
   28 - 37

Cost:
   £0.032 million / $0.130 million

Distribution of weights at normal displacement:
   Armament: 10 tons, 4.7 %
      - Guns: 10 tons, 4.7 %
   Machinery: 115 tons, 51.9 %
   Hull, fittings & equipment: 66 tons, 29.7 %
   Fuel, ammunition & stores: 29 tons, 13.2 %
   Miscellaneous weights: 1 tons, 0.5 %
      - Above deck: 1 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     57 lbs / 26 Kg = 14.3 x 2.0 " / 51 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 0.4 ft / 0.1 m
   Roll period: 11.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.38
   Seaboat quality  (Average = 1.00): 0.95

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.380 / 0.388
   Length to Beam Ratio: 11.76 : 1
   'Natural speed' for length: 14.14 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 74
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   40.00 %,  12.00 ft / 3.66 m,  7.00 ft / 2.13 m
      - Forward deck:   30.00 %,  7.00 ft / 2.13 m,  7.00 ft / 2.13 m
      - Aft deck:   15.00 %,  7.00 ft / 2.13 m,  7.00 ft / 2.13 m
      - Quarter deck:   15.00 %,  7.00 ft / 2.13 m,  7.00 ft / 2.13 m
      - Average freeboard:      7.80 ft / 2.38 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 181.5 %
      - Above water (accommodation/working, high = better): 97.8 %
   Waterplane Area: 2,065 Square feet or 192 Square metres
   Displacement factor (Displacement / loading): 46 %
   Structure weight / hull surface area: 17 lbs/sq ft or 83 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.92
      - Overall: 0.57
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

1t for 1908 FC

I feel like the larger one could use a bit more range if it's to screen larger ships.

Either could make a useful coastal defence/harbour defence unit, though.

QuoteImproved Kamikaze, Japan MTB Killer laid down 1914

Interesting concept

;)

Granted, it only works because of the extreme L:B ratio and block co-efficient.

It did start out as an experiment into how much you can stuff into 300t. These are designed to actively seek out and hunt MTBs, I have a 200t gunboat design that is more suitable for escort duty.

Even more minimalistic. I really like this one.

Improved Kamikaze, Japan MTB Killer laid down 1915

Displacement:
   101 t light; 107 t standard; 118 t normal; 127 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (171.76 ft / 170.00 ft) x 14.20 ft x (4.50 / 4.71 ft)
   (52.35 m / 51.82 m) x 4.33 m  x (1.37 / 1.44 m)

Armament:
      6 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 240 per gun
     Quick firing guns in deck mounts, 1915 Model
     2 x Triple mounts on centreline ends, evenly spread
      Weight of broadside 24 lbs / 11 kg

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 2,631 shp / 1,963 Kw = 24.00 kts
   Range 1,000nm at 14.00 kts
   Bunker at max displacement = 20 tons

Complement:
   17 - 23

Cost:
   £0.019 million / $0.076 million

Distribution of weights at normal displacement:
   Armament: 4 tons, 3.7 %
      - Guns: 4 tons, 3.7 %
   Machinery: 58 tons, 49.6 %
   Hull, fittings & equipment: 34 tons, 29.2 %
   Fuel, ammunition & stores: 17 tons, 14.1 %
   Miscellaneous weights: 4 tons, 3.4 %
      - On freeboard deck: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     32 lbs / 15 Kg = 8.0 x 2.0 " / 51 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 0.3 ft / 0.1 m
   Roll period: 10.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.29
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.380 / 0.390
   Length to Beam Ratio: 11.97 : 1
   'Natural speed' for length: 13.04 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 71
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   30.00 %,  10.00 ft / 3.05 m,  9.00 ft / 2.74 m
      - Forward deck:   30.00 %,  5.00 ft / 1.52 m,  5.00 ft / 1.52 m
      - Aft deck:   25.00 %,  5.00 ft / 1.52 m,  5.00 ft / 1.52 m
      - Quarter deck:   15.00 %,  5.00 ft / 1.52 m,  5.00 ft / 1.52 m
      - Average freeboard:      6.32 ft / 1.93 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172.5 %
      - Above water (accommodation/working, high = better): 81.5 %
   Waterplane Area: 1,466 Square feet or 136 Square metres
   Displacement factor (Displacement / loading): 55 %
   Structure weight / hull surface area: 13 lbs/sq ft or 62 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.55
      - Overall: 0.56
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

1t for 1908 FC
3t for spare (2x14" TT?)

That 100t design is not legal as it only has 49.6% Machinery at normal displacement instead of the 50% required by our rules for construction of ships to the Destroyer standard.

Ok, so you get 29kts actual maximum, though you're going to lose a lot of speed as the weather/sea state picks up. 

I just think that you're not getting enough out of this 100t design to make it superior to an MTB-A at 40 tons.  2 of those revolving 50mm guns versus a pair of MTBs at 80% of the cost with 2 50mm guns.....meh.  Also, only 2 x 14in TT, or conversely a couple of depth charges in the future, means that your MTB killer is that and just that, it's really not a particular threat to cruisers or battleships, and only the oldest DDs can't casually slap your ship into flotsam at ranges you can't respond from.

The machinery % thing is annoying, I can't figure out what makes that particular thing tick. Turns out dumping 2 tons of misc weight fixes that issue.

Speed will be lost in bad weather, but MTBs will lose even more speed in those conditions or wont even be out and about. The Gatlings have proven to be much superior to the single 50mm cannons, and this ship will be a much better gun platform than the MTBs, and better able to survive any hits. It is very specialized but also very cheap and designed for use in littoral waters, where destroyers might not be able to follow.

Overall, I cant say I'm a fan of the concept. I think you loose a lot of opportunity cost by pushing so small and specialized when a bigger multirole ship can likely do the job close to the same and have other possible uses.

Bigger multirole ship will be a lot more expensive. I can build ten of these for one 1,000t destroyer. Based on the 2nd Battle of Jeju, my Gatlings can land 3 hits for every 1 of the enemy's 50mm, which based on the MTBs only being able to take a couple of 50mm hits, means you need five 40t MTBs to take one of these down. So for the cost of an armored cruiser, I can have 100 of these turning MTBs into Swiss cheese, not a bad cost to keep your big ships from getting torpedoed.

Since it appears to be MTB-carrier season, might as well join the action and posted an idea I've been thinking about.

A whaling factory ship, slightly modified... Designed to carry its own 20t whaling boats, which just happen to be the same size as 20t MTBs and capable of processing up to five 100t blue whales at once, or an equivalent amount of MTBs or submarines... Its got a harpoon location forward which just happens to fit a 5" gun, and a reinforced hull.

Nisshin Maru, Japan Whaling Factory Ship laid down 1915

Displacement:
   5,151 t light; 5,275 t standard; 5,770 t normal; 6,166 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (400.00 ft / 400.00 ft) x 54.00 ft x (17.00 / 17.92 ft)
   (121.92 m / 121.92 m) x 16.46 m  x (5.18 / 5.46 m)

Armament:
      1 - 5.00" / 127 mm 45.0 cal gun - 63.03lbs / 28.59kg shells, 150 per gun
     Breech loading gun in deck mount, 1915 Model
     1 x Single mount on centreline, forward deck forward
      12 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 150 per gun
     Breech loading guns in deck mounts, 1915 Model
     4 x Triple mounts on sides, evenly spread
      Weight of broadside 111 lbs / 51 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Ends:   Unarmoured

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      0.50" / 13 mm   400.00 ft / 121.92 m   10.00 ft / 3.05 m
   Beam between torpedo bulkheads 40.00 ft / 12.19 m

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

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 2 shafts, 6,241 shp / 4,656 Kw = 17.00 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 891 tons

Complement:
   330 - 430

Cost:
   £0.319 million / $1.275 million

Distribution of weights at normal displacement:
   Armament: 17 tons, 0.3 %
      - Guns: 17 tons, 0.3 %
   Armour: 86 tons, 1.5 %
      - Torpedo bulkhead: 74 tons, 1.3 %
      - Armament: 12 tons, 0.2 %
   Machinery: 236 tons, 4.1 %
   Hull, fittings & equipment: 1,521 tons, 26.4 %
   Fuel, ammunition & stores: 620 tons, 10.7 %
   Miscellaneous weights: 3,290 tons, 57.0 %
      - Hull below water: 1,360 tons
      - Hull above water: 1,000 tons
      - On freeboard deck: 800 tons
      - Above deck: 130 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     11,698 lbs / 5,306 Kg = 187.2 x 5.0 " / 127 mm shells or 2.6 torpedoes
   Stability (Unstable if below 1.00): 1.31
   Metacentric height 3.2 ft / 1.0 m
   Roll period: 12.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.02
   Seaboat quality  (Average = 1.00): 1.96

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.550 / 0.558
   Length to Beam Ratio: 7.41 : 1
   'Natural speed' for length: 20.00 kts
   Power going to wave formation at top speed: 38 %
   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 (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  17.00 ft / 5.18 m,  15.00 ft / 4.57 m
      - Forward deck:   30.00 %,  15.00 ft / 4.57 m,  15.00 ft / 4.57 m
      - Aft deck:   35.00 %,  15.00 ft / 4.57 m,  15.00 ft / 4.57 m
      - Quarter deck:   15.00 %,  15.00 ft / 4.57 m,  15.00 ft / 4.57 m
      - Average freeboard:      15.16 ft / 4.62 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 80.6 %
      - Above water (accommodation/working, high = better): 130.5 %
   Waterplane Area: 15,074 Square feet or 1,400 Square metres
   Displacement factor (Displacement / loading): 148 %
   Structure weight / hull surface area: 68 lbs/sq ft or 331 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.46
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

130t - LR Wireless, Flag accommodations, Experimental Radar
400t - Accommodations for 10 x 20t MTBs
400t - Accommodations for boat crews
1000t - Ramp and accommodations for 5 x 100t Submarines or 10 x 40t MTBs
1300t - Out-of-port resupply
60t - Electric Drive

Follow on to the Mayas, basically adds a fifth turret and some changes to the secondaries. Amagi style layout.



Atago class, Japan Battlecruiser laid down 1915

Displacement:
   17,958 t light; 19,153 t standard; 20,958 t normal; 22,402 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (644.76 ft / 640.00 ft) x 79.00 ft x (27.90 / 29.37 ft)
   (196.52 m / 195.07 m) x 24.08 m  x (8.50 / 8.95 m)

Armament:
      10 - 12.00" / 305 mm 45.0 cal guns - 871.37lbs / 395.24kg shells, 140 per gun
     Breech loading guns in turret on barbette mounts, 1915 Model
     5 x Twin mounts on centreline, evenly spread
      2 raised mounts
      10 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 150 per gun
     Quick firing guns in casemate mounts, 1915 Model
     10 x Single mounts on sides, evenly spread
      8 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 150 per gun
     Quick firing guns in deck and hoist mounts, 1915 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      12 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 140 per gun
     Quick firing guns in deck mounts, 1915 Model
     4 x Triple mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 9,897 lbs / 4,489 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.00" / 229 mm   440.00 ft / 134.11 m   14.00 ft / 4.27 m
   Ends:   Unarmoured
     Main Belt covers 106 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      1.00" / 25 mm   440.00 ft / 134.11 m   24.00 ft / 7.32 m
   Beam between torpedo bulkheads 60.00 ft / 18.29 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9.00" / 229 mm   5.00" / 127 mm      9.00" / 229 mm
   2nd:   2.00" / 51 mm         -               -
   3rd:   1.00" / 25 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 2.00" / 51 mm

   - Conning towers: Forward 9.00" / 229 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 68,062 shp / 50,774 Kw = 27.00 kts
   Range 7,900nm at 14.00 kts
   Bunker at max displacement = 3,249 tons

Complement:
   870 - 1,132

Cost:
   £2.740 million / $10.959 million

Distribution of weights at normal displacement:
   Armament: 1,803 tons, 8.6 %
      - Guns: 1,803 tons, 8.6 %
   Armour: 5,443 tons, 26.0 %
      - Belts: 2,305 tons, 11.0 %
      - Torpedo bulkhead: 391 tons, 1.9 %
      - Armament: 1,716 tons, 8.2 %
      - Armour Deck: 884 tons, 4.2 %
      - Conning Tower: 147 tons, 0.7 %
   Machinery: 2,578 tons, 12.3 %
   Hull, fittings & equipment: 7,883 tons, 37.6 %
   Fuel, ammunition & stores: 3,000 tons, 14.3 %
   Miscellaneous weights: 250 tons, 1.2 %
      - Hull below water: 40 tons
      - On freeboard deck: 30 tons
      - Above deck: 180 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     26,398 lbs / 11,974 Kg = 30.6 x 12.0 " / 305 mm shells or 3.8 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 4.2 ft / 1.3 m
   Roll period: 16.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0.95
   Seaboat quality  (Average = 1.00): 1.27

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.520 / 0.528
   Length to Beam Ratio: 8.10 : 1
   'Natural speed' for length: 25.30 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 40
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   35.00 %,  27.00 ft / 8.23 m,  20.00 ft / 6.10 m
      - Forward deck:   20.00 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
      - Aft deck:   30.00 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
      - Quarter deck:   15.00 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
      - Average freeboard:      20.98 ft / 6.39 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 105.5 %
      - Above water (accommodation/working, high = better): 150.2 %
   Waterplane Area: 34,312 Square feet or 3,188 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 164 lbs/sq ft or 800 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.51
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Good seaboat, rides out heavy weather easily

180t for 1908  FC
30t for Long-range wireless and flagship facilities
40t for Enhanced Damage Control

How many are planned?

27knts might be a little on the slow side for 1915, how much larger does she need to get for 28-30 knts?

Two, Atago and Chokai. They are slowish, but speed is expensive, and I'm mainly concerned with China. Right now I need numbers and I need them fast, so they have to be cheap.