Japanese Ship Designs 1918+

[Desertfox]

More guns and more deck armor. Slight improvements to secondaries and range.



Ise class, Japan Battleship laid down 1918

Displacement:
   27,011 t light; 29,064 t standard; 31,020 t normal; 32,585 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (704.23 ft / 700.00 ft) x 94.00 ft x (30.00 / 31.19 ft)
   (214.65 m / 213.36 m) x 28.65 m  x (9.14 / 9.51 m)

Armament:
      12 - 14.00" / 356 mm 45.0 cal guns - 1,383.70lbs / 627.63kg shells, 142 per gun
     Breech loading guns in turret on barbette mounts, 1918 Model
     6 x Twin mounts on centreline ends, evenly spread
      3 raised mounts - superfiring
      12 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 150 per gun
     Quick firing guns in casemate mounts, 1918 Model
     12 x Single mounts on sides, evenly spread
      10 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 150 per gun
     Quick firing guns in deck mounts, 1918 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      12 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 250 per gun
     Quick firing guns in deck mounts, 1918 Model
     4 x Triple mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 18,039 lbs / 8,183 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.0" / 305 mm   410.00 ft / 124.97 m   14.00 ft / 4.27 m
   Ends:   Unarmoured
     Main Belt covers 90 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      1.00" / 25 mm   410.00 ft / 124.97 m   24.00 ft / 7.32 m
   Beam between torpedo bulkheads 74.00 ft / 22.56 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12.0" / 305 mm   7.00" / 178 mm      12.0" / 305 mm
   2nd:   2.00" / 51 mm         -               -
   3rd:   1.00" / 25 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 4.00" / 102 mm

   - Conning towers: Forward 12.00" / 305 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 54,780 shp / 40,866 Kw = 24.00 kts
   Range 7,400nm at 14.00 kts
   Bunker at max displacement = 3,521 tons

Complement:
   1,168 - 1,519

Cost:
   £5.679 million / $22.714 million

Distribution of weights at normal displacement:
   Armament: 3,069 tons, 9.9 %
      - Guns: 3,069 tons, 9.9 %
   Armour: 9,561 tons, 30.8 %
      - Belts: 2,996 tons, 9.7 %
      - Torpedo bulkhead: 364 tons, 1.2 %
      - Armament: 3,417 tons, 11.0 %
      - Armour Deck: 2,528 tons, 8.2 %
      - Conning Tower: 255 tons, 0.8 %
   Machinery: 1,976 tons, 6.4 %
   Hull, fittings & equipment: 11,945 tons, 38.5 %
   Fuel, ammunition & stores: 4,009 tons, 12.9 %
   Miscellaneous weights: 460 tons, 1.5 %
      - Hull below water: 50 tons
      - On freeboard deck: 100 tons
      - Above deck: 310 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     41,485 lbs / 18,817 Kg = 30.2 x 14.0 " / 356 mm shells or 6.0 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 5.3 ft / 1.6 m
   Roll period: 17.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.92
   Seaboat quality  (Average = 1.00): 1.26

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.550 / 0.556
   Length to Beam Ratio: 7.45 : 1
   'Natural speed' for length: 26.46 kts
   Power going to wave formation at top speed: 43 %
   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:   30.00 %,  24.00 ft / 7.32 m,  19.00 ft / 5.79 m
      - Forward deck:   20.00 %,  19.00 ft / 5.79 m,  19.00 ft / 5.79 m
      - Aft deck:   35.00 %,  19.00 ft / 5.79 m,  19.00 ft / 5.79 m
      - Quarter deck:   15.00 %,  19.00 ft / 5.79 m,  19.00 ft / 5.79 m
      - Average freeboard:      19.60 ft / 5.97 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 88.7 %
      - Above water (accommodation/working, high = better): 142.3 %
   Waterplane Area: 45,921 Square feet or 4,266 Square metres
   Displacement factor (Displacement / loading): 106 %
   Structure weight / hull surface area: 202 lbs/sq ft or 985 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.27
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Good seaboat, rides out heavy weather easily

310t for 1912  FC
150t for Long-range wireless and spare

[Desertfox]

Refurbishment of the Recaldes to Japanese standards. Main changes are armament from 4x140mm + 4x57mm to 2x6" + 4x2" Gatlings and replacing the torpedoes with alot more mines.  These are now basically minelayers with a secondary colonial gunboat role.

Cost $0.4 and 0.15 BP per ship

Soyuza/Soya, Japan Minelayer laid down 1905

Displacement:
   1,115 t light; 1,165 t standard; 1,393 t normal; 1,576 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (256.00 ft / 256.00 ft) x 33.50 ft x (11.15 / 12.26 ft)
   (78.03 m / 78.03 m) x 10.21 m  x (3.40 / 3.74 m)

Armament:
      2 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 150 per gun
     Quick firing guns in deck mounts, 1905 Model
     2 x Single mounts on centreline ends, evenly spread
      12 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 150 per gun
     Quick firing guns in deck mounts, 1905 Model
     4 x Triple mounts on sides, evenly spread
      Weight of broadside 266 lbs / 121 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.00" / 25 mm   256.00 ft / 78.03 m   6.60 ft / 2.01 m
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm   1.00" / 25 mm            -
   2nd:   0.40" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 1.00" / 25 mm
   Forecastle: 1.00" / 25 mm  Quarter deck: 1.00" / 25 mm

   - Conning towers: Forward 3.00" / 76 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 4,477 shp / 3,340 Kw = 19.00 kts
   Range 5,000nm at 10.00 kts
   Bunker at max displacement = 411 tons (90% coal)

Complement:
   113 - 148

Cost:
   £0.104 million / $0.415 million

Distribution of weights at normal displacement:
   Armament: 46 tons, 3.3 %
      - Guns: 46 tons, 3.3 %
   Armour: 197 tons, 14.1 %
      - Belts: 63 tons, 4.5 %
      - Armament: 19 tons, 1.4 %
      - Armour Deck: 108 tons, 7.7 %
      - Conning Tower: 8 tons, 0.6 %
   Machinery: 369 tons, 26.5 %
   Hull, fittings & equipment: 383 tons, 27.5 %
   Fuel, ammunition & stores: 279 tons, 20.0 %
   Miscellaneous weights: 120 tons, 8.6 %
      - On freeboard deck: 95 tons
      - Above deck: 25 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,759 lbs / 798 Kg = 16.3 x 6.0 " / 152 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.35
   Metacentric height 1.6 ft / 0.5 m
   Roll period: 11.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.16
   Seaboat quality  (Average = 1.00): 1.30

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.510 / 0.525
   Length to Beam Ratio: 7.64 : 1
   'Natural speed' for length: 16.00 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 54
   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 %,  13.00 ft / 3.96 m,  12.10 ft / 3.69 m
      - Forward deck:   30.00 %,  12.10 ft / 3.69 m,  11.20 ft / 3.41 m
      - Aft deck:   35.00 %,  7.20 ft / 2.19 m,  7.20 ft / 2.19 m
      - Quarter deck:   15.00 %,  7.20 ft / 2.19 m,  7.20 ft / 2.19 m
      - Average freeboard:      9.59 ft / 2.92 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 96.0 %
      - Above water (accommodation/working, high = better): 89.9 %
   Waterplane Area: 5,766 Square feet or 536 Square metres
   Displacement factor (Displacement / loading): 118 %
   Structure weight / hull surface area: 46 lbs/sq ft or 227 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.65
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

25t - LR Wireless
5t - Flag facilities
90t - Mines

[Desertfox]

Refurbishment of the Magallanes to Japanese standards. Main changes are armament from 2x140mm + 4x57mm to 2x5" + 2x2" Gatlings.

Cost $0.3 and 0.1 BP for all 4

Magallanes class, Iberia/Japan River Gunboat laid down 1894

Displacement:
   254 t light; 274 t standard; 281 t normal; 287 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (176.77 ft / 175.20 ft) x 23.62 ft x (6.24 / 6.32 ft)
   (53.88 m / 53.40 m) x 7.20 m  x (1.90 / 1.93 m)

Armament:
      2 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 170 per gun
     Quick firing guns in deck mounts, 1894 Model
     2 x Single mounts on centreline ends, evenly spread
      6 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 200 per gun
     Quick firing guns in deck mounts, 1894 Model
     2 x Triple mounts on centreline, evenly spread
      2 raised mounts
      4 - 0.50" / 12.7 mm 45.0 cal guns - 0.06lbs / 0.03kg shells, 150 per gun
     Machine guns in deck mounts, 1894 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 151 lbs / 68 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm   0.50" / 13 mm            -
   2nd:   0.50" / 13 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 485 ihp / 362 Kw = 13.50 kts
   Range 1,000nm at 6.00 kts
   Bunker at max displacement = 13 tons (100% coal)

Complement:
   33 - 44

Cost:
   £0.028 million / $0.112 million

Distribution of weights at normal displacement:
   Armament: 26 tons, 9.4 %
      - Guns: 26 tons, 9.4 %
   Armour: 10 tons, 3.5 %
      - Armament: 10 tons, 3.5 %
   Machinery: 84 tons, 29.8 %
   Hull, fittings & equipment: 126 tons, 44.8 %
   Fuel, ammunition & stores: 27 tons, 9.7 %
   Miscellaneous weights: 8 tons, 2.8 %
      - On freeboard deck: 5 tons
      - Above deck: 3 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     297 lbs / 135 Kg = 4.8 x 5.0 " / 127 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.41
   Metacentric height 1.0 ft / 0.3 m
   Roll period: 9.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.38
   Seaboat quality  (Average = 1.00): 1.71

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.381 / 0.384
   Length to Beam Ratio: 7.42 : 1
   'Natural speed' for length: 13.24 kts
   Power going to wave formation at top speed: 39 %
   Trim (Max stability = 0, Max steadiness = 100): 41
   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:   20.00 %,  8.90 ft / 2.71 m,  7.20 ft / 2.19 m
      - Forward deck:   30.00 %,  7.20 ft / 2.19 m,  7.20 ft / 2.19 m
      - Aft deck:   35.00 %,  7.20 ft / 2.19 m,  7.20 ft / 2.19 m
      - Quarter deck:   15.00 %,  7.20 ft / 2.19 m,  7.20 ft / 2.19 m
      - Average freeboard:      7.34 ft / 2.24 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 124.0 %
      - Above water (accommodation/working, high = better): 98.8 %
   Waterplane Area: 2,377 Square feet or 221 Square metres
   Displacement factor (Displacement / loading): 110 %
   Structure weight / hull surface area: 38 lbs/sq ft or 187 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.91
      - Longitudinal: 2.37
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Adequate 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

3t - FC
5t - Troop facilities

[Desertfox]

Updated the Improved Sakuras for 1919. Main change is upgrading the torpedoes to the big 4t 21" ones and added a couple of smoke grenade mortars to provide cover during the torpedo run.

Improved Sakura class, Japan Destroyer laid down 1919

Displacement:
   780 t light; 813 t standard; 915 t normal; 996 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (302.64 ft / 300.00 ft) x 27.00 ft x (10.40 / 10.98 ft)
   (92.25 m / 91.44 m) x 8.23 m  x (3.17 / 3.35 m)

Armament:
      3 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 120 per gun
     Quick firing guns in deck mounts, 1919 Model
     3 x Single mounts on centreline ends, majority aft
      1 raised mount aft - superfiring
      6 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 150 per gun
     Quick firing guns in deck mounts, 1919 Model
     2 x Triple mounts on sides amidships
      2 - 2.76" / 70.0 mm 20.0 cal guns - 9.38lbs / 4.26kg shells, 50 per gun
     Muzzle loading guns in deck mounts, 1919 Model
     2 x Single mounts on sides, forward deck aft
      Weight of broadside 232 lbs / 105 kg

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

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 20,307 shp / 15,149 Kw = 30.70 kts
   Range 3,300nm at 14.00 kts
   Bunker at max displacement = 183 tons

Complement:
   83 - 108

Cost:
   £0.223 million / $0.891 million

Distribution of weights at normal displacement:
   Armament: 39 tons, 4.2 %
      - Guns: 39 tons, 4.2 %
   Armour: 1 tons, 0.1 %
      - Armament: 1 tons, 0.1 %
   Machinery: 457 tons, 50.0 %
   Hull, fittings & equipment: 231 tons, 25.3 %
   Fuel, ammunition & stores: 135 tons, 14.8 %
   Miscellaneous weights: 52 tons, 5.7 %
      - On freeboard deck: 48 tons
      - Above deck: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     228 lbs / 103 Kg = 3.6 x 5.0 " / 127 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 0.9 ft / 0.3 m
   Roll period: 12.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.48
   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 / 0.392
   Length to Beam Ratio: 11.11 : 1
   'Natural speed' for length: 17.32 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:   24.00 %,  15.00 ft / 4.57 m,  15.00 ft / 4.57 m
      - Forward deck:   30.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
      - Aft deck:   31.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
      - Quarter deck:   15.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
      - Average freeboard:      11.20 ft / 3.41 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 173.0 %
      - Above water (accommodation/working, high = better): 112.6 %
   Waterplane Area: 4,920 Square feet or 457 Square metres
   Displacement factor (Displacement / loading): 57 %
   Structure weight / hull surface area: 27 lbs/sq ft or 130 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.52
      - Overall: 0.55
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

4t - 1908 FC
48t - 12  x 21"  Torpedoes

70mm "guns" are mortars for launching smoke grenades

[Desertfox]

The mighty Fubukis have arrived. Japan's first true oceangoing destroyer, with a brand-new heavy armament.



Fubuki class, Japan Destroyer laid down 1919

Displacement:
   1,500 t light; 1,571 t standard; 1,788 t normal; 1,961 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (353.53 ft / 350.00 ft) x 32.00 ft x (14.70 / 15.59 ft)
   (107.75 m / 106.68 m) x 9.75 m  x (4.48 / 4.75 m)

Armament:
      6 - 5.00" / 127 mm 50.0 cal guns - 66.16lbs / 30.01kg shells, 155 per gun
     Quick firing guns in deck and hoist mounts, 1919 Model
     3 x Twin mounts on centreline ends, majority aft
      1 raised mount aft - superfiring
      8 - 1.00" / 25.4 mm 70.0 cal guns - 0.56lbs / 0.25kg shells, 350 per gun
     Machine guns in deck mounts, 1919 Model
     4 x Twin mounts on sides, evenly spread
      Weight of broadside 401 lbs / 182 kg

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

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 34,297 shp / 25,585 Kw = 32.00 kts
   Range 4,700nm at 14.00 kts
   Bunker at max displacement = 390 tons

Complement:
   136 - 178

Cost:
   £0.480 million / $1.922 million

Distribution of weights at normal displacement:
   Armament: 97 tons, 5.4 %
      - Guns: 97 tons, 5.4 %
   Armour: 4 tons, 0.2 %
      - Armament: 4 tons, 0.2 %
   Machinery: 893 tons, 50.0 %
   Hull, fittings & equipment: 455 tons, 25.5 %
   Fuel, ammunition & stores: 287 tons, 16.1 %
   Miscellaneous weights: 51 tons, 2.9 %
      - On freeboard deck: 41 tons
      - Above deck: 10 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     358 lbs / 163 Kg = 5.7 x 5.0 " / 127 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.20
   Metacentric height 1.3 ft / 0.4 m
   Roll period: 11.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.71
   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 / 0.393
   Length to Beam Ratio: 10.94 : 1
   'Natural speed' for length: 18.71 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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:   29.00 %,  20.00 ft / 6.10 m,  17.00 ft / 5.18 m
      - Forward deck:   30.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Aft deck:   26.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Quarter deck:   15.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Average freeboard:      13.09 ft / 3.99 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 183.0 %
      - Above water (accommodation/working, high = better): 104.6 %
   Waterplane Area: 6,803 Square feet or 632 Square metres
   Displacement factor (Displacement / loading): 62 %
   Structure weight / hull surface area: 36 lbs/sq ft or 177 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.62
      - Overall: 0.56
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room

10t - 1908 FC
36t - 9  x 21" Heavy Torpedoes
5t - ASW Reserve

[Desertfox]

Another auxiliary, a dedicated multi-purpose fast dispatch boat. Good range at a good cruising speed (5500nm @14kts) and space for diplomatic personnel and boats for use in areas without suitable harbors. For fleet use it can serve as a rescue boat and emergency flagship, and it has an enhanced electronics kit allowing it to be used for intelligence gathering. It is not actually fitted with weapons, but has been designed to mount a limited defensive armament suite (25mm auto cannons and short range electric torpedoes).   

Miyako Maru, Japan Dispatch Boat laid down 1920

Displacement:
   1,192 t light; 1,220 t standard; 1,373 t normal; 1,495 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (303.00 ft / 300.00 ft) x 40.00 ft x (9.10 / 9.66 ft)
   (92.35 m / 91.44 m) x 12.19 m  x (2.77 / 2.95 m)

Armament:
      4 - 1.00" / 25.4 mm 70.0 cal guns - 0.56lbs / 0.25kg shells, 150 per gun
     Machine guns in deck mounts, 1920 Model
     2 x Twin mounts on centreline ends, evenly spread
      Weight of broadside 2 lbs / 1 kg

Machinery:
   Oil fired boilers, steam turbines,
   Electric cruising motors plus geared drives, 2 shafts, 10,419 shp / 7,773 Kw = 24.00 kts
   Range 4,000nm at 14.00 kts
   Bunker at max displacement = 276 tons

Complement:
   112 - 146

Cost:
   £0.220 million / $0.880 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 0.0 %
      - Guns: 1 tons, 0.0 %
   Machinery: 364 tons, 26.5 %
   Hull, fittings & equipment: 517 tons, 37.7 %
   Fuel, ammunition & stores: 181 tons, 13.2 %
   Miscellaneous weights: 310 tons, 22.6 %
      - Hull below water: 90 tons
      - On freeboard deck: 195 tons
      - Above deck: 25 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,066 lbs / 937 Kg = 4,131.4 x 1.0 " / 25 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.21
   Metacentric height 1.8 ft / 0.5 m
   Roll period: 12.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   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): 0.440 / 0.451
   Length to Beam Ratio: 7.50 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 58 %
   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:   30.00 %,  17.00 ft / 5.18 m,  15.00 ft / 4.57 m
      - Forward deck:   30.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
      - Aft deck:   25.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
      - Quarter deck:   15.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
      - Average freeboard:      11.74 ft / 3.58 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 94.0 %
      - Above water (accommodation/working, high = better): 129.1 %
   Waterplane Area: 7,593 Square feet or 705 Square metres
   Displacement factor (Displacement / loading): 132 %
   Structure weight / hull surface area: 47 lbs/sq ft or 230 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.55
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

25t - LR Wireless
25t - Experimental Radar
25t - Hydrophone Kit
25t - Flagship/Diplomatic/SIGINT facilities
25t - Observation Balloon
15t - 4x21" fixed internal torpedo tubes
80t - 2 x 20t Boats
90t - Electric Drive

[Desertfox]

Comprehensive refurbishment of the Kobayashi Marus. They are close to hitting 25 years old but as auxiliaries don't need new replacements.

Main changes are brand new engines pushing speed up to 17kts, cruising speed to 14kts, and range to a massive 17,000nm (primarily to refuel fleet ships). Defensive armament has also been seriously updated, as well as the misc weight stuff, including adding four 40t boats, improved accommodations, and a sensor suite.

Cost per ship is $1.1 and 0.27 BP

Kobayashi Maru class, Japan Fleet Support/Tanker laid down 1896 (Engine 1920)

Displacement:
   7,990 t light; 8,197 t standard; 9,710 t normal; 10,920 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (400.00 ft / 400.00 ft) x 59.00 ft x (24.00 / 26.51 ft)
   (121.92 m / 121.92 m) x 17.98 m  x (7.32 / 8.08 m)

Armament:
      2 - 5.00" / 127 mm 54.0 cal guns - 67.24lbs / 30.50kg shells, 170 per gun
     Quick firing guns in deck mounts, 1920 Model
     2 x Single mounts on centreline ends, evenly spread
      8 - 1.00" / 25.4 mm 45.0 cal guns - 0.50lbs / 0.23kg shells, 250 per gun
     Machine guns in deck mounts, 1920 Model
     4 x Twin mounts on sides, evenly spread
      Weight of broadside 139 lbs / 63 kg

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

Machinery:
   Oil fired boilers, steam turbines,
   Electric cruising motors plus geared drives, 1 shaft, 8,642 shp / 6,447 Kw = 17.00 kts
   Range 12,700nm at 14.00 kts
   Bunker at max displacement = 2,723 tons

Complement:
   488 - 635

Cost:
   £0.330 million / $1.320 million

Distribution of weights at normal displacement:
   Armament: 29 tons, 0.3 %
      - Guns: 29 tons, 0.3 %
   Armour: 9 tons, 0.1 %
      - Armament: 9 tons, 0.1 %
   Machinery: 302 tons, 3.1 %
   Hull, fittings & equipment: 1,940 tons, 20.0 %
   Fuel, ammunition & stores: 1,720 tons, 17.7 %
   Miscellaneous weights: 5,710 tons, 58.8 %
      - Hull below water: 5,080 tons
      - Hull above water: 320 tons
      - On freeboard deck: 280 tons
      - Above deck: 30 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     14,112 lbs / 6,401 Kg = 225.8 x 5.0 " / 127 mm shells or 2.1 torpedoes
   Stability (Unstable if below 1.00): 1.83
   Metacentric height 6.0 ft / 1.8 m
   Roll period: 10.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 98 %
         - Recoil effect (Restricted arc if above 1.00): 0.01
   Seaboat quality  (Average = 1.00): 1.55

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.600 / 0.611
   Length to Beam Ratio: 6.78 : 1
   'Natural speed' for length: 20.00 kts
   Power going to wave formation at top speed: 42 %
   Trim (Max stability = 0, Max steadiness = 100): 63
   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:   30.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Forward deck:   30.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Aft deck:   25.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Quarter deck:   15.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Average freeboard:      11.00 ft / 3.35 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 72.0 %
      - Above water (accommodation/working, high = better): 72.5 %
   Waterplane Area: 16,884 Square feet or 1,569 Square metres
   Displacement factor (Displacement / loading): 152 %
   Structure weight / hull surface area: 78 lbs/sq ft or 381 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.26
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Cramped 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

5000t - 50,000t of fleet support
80t - Electric Drive
320t - 40t Extra Boats
100t - Hospital Accommodations
100t - Flag/Passenger Accommodations
80t - Radar/Sonar
30t - LR Wireless/FC

[Desertfox]

Stretched Kongo with an extra turret and the new 5" twins as secondaries.

Kirishima class, Japan Battlecruiser laid down 1920

Displacement:
   24,001 t light; 25,739 t standard; 27,816 t normal; 29,477 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (744.76 ft / 740.00 ft) x 92.00 ft x (27.50 / 28.76 ft)
   (227.00 m / 225.55 m) x 28.04 m  x (8.38 / 8.77 m)

Armament:
      10 - 14.00" / 356 mm 45.0 cal guns - 1,383.70lbs / 627.63kg shells, 140 per gun
     Breech loading guns in turret on barbette mounts, 1920 Model
     5 x Twin mounts on centreline, evenly spread
      2 raised mounts
      20 - 5.00" / 127 mm 54.0 cal guns - 67.24lbs / 30.50kg shells, 140 per gun
     Quick firing guns in deck and hoist mounts, 1920 Model
     10 x Twin mounts on sides, evenly spread
      8 - 1.00" / 25.4 mm 70.0 cal guns - 0.56lbs / 0.25kg shells, 300 per gun
     Machine guns in deck mounts, 1920 Model
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 15,186 lbs / 6,888 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.00" / 229 mm   472.00 ft / 143.87 m   14.00 ft / 4.27 m
   Ends:   Unarmoured
     Main Belt covers 98 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      1.40" / 36 mm   472.00 ft / 143.87 m   24.00 ft / 7.32 m
   Beam between torpedo bulkheads 75.00 ft / 22.86 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:   1.00" / 25 mm   0.50" / 13 mm      1.00" / 25 mm
   3rd:   1.00" / 25 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2.40" / 61 mm

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

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 77,784 shp / 58,027 Kw = 27.00 kts
   Range 9,000nm at 14.00 kts
   Bunker at max displacement = 3,737 tons

Complement:
   1,076 - 1,400

Cost:
   £6.300 million / $25.202 million

Distribution of weights at normal displacement:
   Armament: 2,700 tons, 9.7 %
      - Guns: 2,700 tons, 9.7 %
   Armour: 6,845 tons, 24.6 %
      - Belts: 2,510 tons, 9.0 %
      - Torpedo bulkhead: 587 tons, 2.1 %
      - Armament: 2,066 tons, 7.4 %
      - Armour Deck: 1,504 tons, 5.4 %
      - Conning Tower: 178 tons, 0.6 %
   Machinery: 2,720 tons, 9.8 %
   Hull, fittings & equipment: 11,367 tons, 40.9 %
   Fuel, ammunition & stores: 3,814 tons, 13.7 %
   Miscellaneous weights: 370 tons, 1.3 %
      - On freeboard deck: 100 tons
      - Above deck: 270 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     35,670 lbs / 16,180 Kg = 26.0 x 14.0 " / 356 mm shells or 5.1 torpedoes
   Stability (Unstable if below 1.00): 1.17
   Metacentric height 5.9 ft / 1.8 m
   Roll period: 15.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.76
   Seaboat quality  (Average = 1.00): 1.28

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.520 / 0.527
   Length to Beam Ratio: 8.04 : 1
   'Natural speed' for length: 27.20 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 39
   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:   31.00 %,  27.00 ft / 8.23 m,  19.00 ft / 5.79 m
      - Forward deck:   20.00 %,  19.00 ft / 5.79 m,  19.00 ft / 5.79 m
      - Aft deck:   34.00 %,  19.00 ft / 5.79 m,  19.00 ft / 5.79 m
      - Quarter deck:   15.00 %,  19.00 ft / 5.79 m,  19.00 ft / 5.79 m
      - Average freeboard:      19.99 ft / 6.09 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 98.1 %
      - Above water (accommodation/working, high = better): 155.4 %
   Waterplane Area: 46,201 Square feet or 4,292 Square metres
   Displacement factor (Displacement / loading): 105 %
   Structure weight / hull surface area: 190 lbs/sq ft or 926 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.15
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Good seaboat, rides out heavy weather easily

270t for  FC
100t for Long-range wireless and flagship facilities
100t for Enhanced Damage Control

[The Rock Doctor]

Handy.  Not my style, but it's a lot of guns and decent speed for its cost.

[Desertfox]

The Chihayas are hopelessly obsolete as scout cruisers but they are still solid hulls. At first I thought about turning them into training ships but then... They have sail rigging, so why not turn them into ASW sloops? You can use sails to quietly hunt submarines. Throw some modern engines in and now you have a ton of misc weight for a very comprehensive and heavy ASW suite, plus a significantly longer range.

Chihaya class, Japan Gunboat laid down 1902 (Engine 1920)

Displacement:
   1,099 t light; 1,141 t standard; 1,282 t normal; 1,396 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (301.94 ft / 300.00 ft) x 34.00 ft x (10.00 / 10.61 ft)
   (92.03 m / 91.44 m) x 10.36 m  x (3.05 / 3.24 m)

Armament:
      2 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 170 per gun
     Quick firing guns in deck mounts, 1902 Model
     2 x Single mounts on centreline, evenly spread
      12 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 150 per gun
     Quick firing guns in deck mounts, 1910 Model
     4 x Triple mounts on sides, evenly spread
      Weight of broadside 174 lbs / 79 kg

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

   - Conning towers: Forward 0.50" / 13 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric cruising motors plus geared drives, 2 shafts, 5,696 shp / 4,250 Kw = 21.00 kts
   Range 3,900nm at 14.00 kts
   Bunker at max displacement = 255 tons

Complement:
   106 - 139

Cost:
   £0.075 million / $0.300 million

Distribution of weights at normal displacement:
   Armament: 31 tons, 2.4 %
      - Guns: 31 tons, 2.4 %
   Armour: 4 tons, 0.3 %
      - Armament: 3 tons, 0.2 %
      - Conning Tower: 1 tons, 0.1 %
   Machinery: 199 tons, 15.5 %
   Hull, fittings & equipment: 423 tons, 33.0 %
   Fuel, ammunition & stores: 183 tons, 14.3 %
   Miscellaneous weights: 443 tons, 34.5 %
      - Hull below water: 87 tons
      - On freeboard deck: 335 tons
      - Above deck: 21 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,352 lbs / 1,067 Kg = 37.6 x 5.0 " / 127 mm shells or 1.1 torpedoes
   Stability (Unstable if below 1.00): 1.11
   Metacentric height 1.2 ft / 0.4 m
   Roll period: 13.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 63 %
         - Recoil effect (Restricted arc if above 1.00): 0.11
   Seaboat quality  (Average = 1.00): 1.24

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.440 / 0.451
   Length to Beam Ratio: 8.82 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 51
   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 %,  11.00 ft / 3.35 m,  9.00 ft / 2.74 m
      - Forward deck:   30.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 m
      - Aft deck:   25.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 m
      - Quarter deck:   15.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 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): 65.7 %
      - Above water (accommodation/working, high = better): 104.4 %
   Waterplane Area: 6,454 Square feet or 600 Square metres
   Displacement factor (Displacement / loading): 138 %
   Structure weight / hull surface area: 46 lbs/sq ft or 224 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.21
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Good seaboat, rides out heavy weather easily

3t - FC
55t - Auxiliary sail rigging
50t - Electric Drive
310t - ASW Gear/Mines/Etc
25t - Wireless

[Jefgte]

The Chihayas are hopelessly obsolete as scout cruisers but they are still solid hulls. At first I thought about turning them into training ships but then... They have sail rigging, so why not turn them into ASW sloops? You can use sails to quietly hunt submarines. Throw some modern engines in and now you have a ton of misc weight for a very comprehensive and heavy ASW suite, plus a significantly longer range.

Exellent use.

[Desertfox]

I'm having second thoughts about replacing the engines entirely since the cost would be more than a new aux with 90% of the functionality. So I might do a more modest refit, keeping the original engines but making them 100% oil fired and installing the ASW suite since I don't really need 300t worth of it.

[The Rock Doctor]

You can never have too many depth charges.

[Desertfox]

This should be significantly cheaper, while still having plenty of misc weight for an ASW suite.

Chihaya class, Japan Gunboat laid down 1902

Displacement:
   1,126 t light; 1,168 t standard; 1,282 t normal; 1,374 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (301.94 ft / 300.00 ft) x 34.00 ft x (10.00 / 10.50 ft)
   (92.03 m / 91.44 m) x 10.36 m  x (3.05 / 3.20 m)

Armament:
      2 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 170 per gun
     Quick firing guns in deck mounts, 1902 Model
     2 x Single mounts on centreline, evenly spread
      12 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 150 per gun
     Quick firing guns in deck mounts, 1910 Model
     4 x Triple mounts on sides, evenly spread
      Weight of broadside 174 lbs / 79 kg

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

   - Conning towers: Forward 0.50" / 13 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 4,715 ihp / 3,517 Kw = 20.00 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 206 tons

Complement:
   106 - 139

Cost:
   £0.128 million / $0.511 million

Distribution of weights at normal displacement:
   Armament: 31 tons, 2.4 %
      - Guns: 31 tons, 2.4 %
   Armour: 4 tons, 0.3 %
      - Armament: 3 tons, 0.2 %
      - Conning Tower: 1 tons, 0.1 %
   Machinery: 569 tons, 44.3 %
   Hull, fittings & equipment: 376 tons, 29.3 %
   Fuel, ammunition & stores: 156 tons, 12.2 %
   Miscellaneous weights: 148 tons, 11.5 %
      - Hull below water: 37 tons
      - On freeboard deck: 90 tons
      - Above deck: 21 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     689 lbs / 312 Kg = 11.0 x 5.0 " / 127 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.51
   Metacentric height 2.0 ft / 0.6 m
   Roll period: 10.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 75 %
         - Recoil effect (Restricted arc if above 1.00): 0.09
   Seaboat quality  (Average = 1.00): 1.48

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.440 / 0.449
   Length to Beam Ratio: 8.82 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 47 %
   Trim (Max stability = 0, Max steadiness = 100): 51
   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 %,  11.00 ft / 3.35 m,  9.00 ft / 2.74 m
      - Forward deck:   30.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 m
      - Aft deck:   25.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 m
      - Quarter deck:   15.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 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): 153.5 %
      - Above water (accommodation/working, high = better): 104.4 %
   Waterplane Area: 6,454 Square feet or 600 Square metres
   Displacement factor (Displacement / loading): 84 %
   Structure weight / hull surface area: 41 lbs/sq ft or 201 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.88
      - Longitudinal: 1.08
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

3t - FC
55t - Auxilary sail rigging
65t - ASW Gear
25t - Wireless

[Desertfox]

The Fubukis are big, nasty, and expensive. An attempt at a cheaper "colonial" version that fits in 300ft drydocks. Loses a 5" mount, some torpedoes, range, and seakeeping. Compared to the Minekazes it has significantly improved armament, but slightly shorter range and seakeeping at 250t more (OOC annoyed at those extra 50t). So not quite sure if they will be built.

Hatsuharu class, Japan Destroyer laid down 1920

Displacement:
   1,050 t light; 1,105 t standard; 1,212 t normal; 1,297 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (303.00 ft / 300.00 ft) x 30.00 ft x (12.40 / 12.95 ft)
   (92.35 m / 91.44 m) x 9.14 m  x (3.78 / 3.95 m)

Armament:
      4 - 5.00" / 127 mm 50.0 cal guns - 66.16lbs / 30.01kg shells, 200 per gun
     Quick firing guns in deck and hoist mounts, 1920 Model
     2 x Twin mounts on centreline ends, evenly spread
      6 - 1.00" / 25.4 mm 70.0 cal guns - 0.56lbs / 0.25kg shells, 350 per gun
     Machine guns in deck mounts, 1920 Model
     2 x Twin mounts on sides amidships
     1 x Twin mount on centreline, aft deck centre
      1 raised mount
      Weight of broadside 268 lbs / 122 kg

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

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 27,599 shp / 20,589 Kw = 31.50 kts
   Range 3,000nm at 14.00 kts
   Bunker at max displacement = 193 tons

Complement:
   102 - 133

Cost:
   £0.355 million / $1.419 million

Distribution of weights at normal displacement:
   Armament: 65 tons, 5.3 %
      - Guns: 65 tons, 5.3 %
   Armour: 3 tons, 0.2 %
      - Armament: 3 tons, 0.2 %
   Machinery: 606 tons, 50.0 %
   Hull, fittings & equipment: 341 tons, 28.2 %
   Fuel, ammunition & stores: 161 tons, 13.3 %
   Miscellaneous weights: 36 tons, 3.0 %
      - On freeboard deck: 29 tons
      - Above deck: 7 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     277 lbs / 126 Kg = 4.4 x 5.0 " / 127 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.21
   Metacentric height 1.2 ft / 0.4 m
   Roll period: 11.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.53
   Seaboat quality  (Average = 1.00): 0.91

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: 10.00 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   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:   33.00 %,  17.00 ft / 5.18 m,  15.00 ft / 4.57 m
      - Forward deck:   30.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Aft deck:   22.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Quarter deck:   15.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Average freeboard:      12.58 ft / 3.84 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 183.4 %
      - Above water (accommodation/working, high = better): 112.0 %
   Waterplane Area: 5,467 Square feet or 508 Square metres
   Displacement factor (Displacement / loading): 54 %
   Structure weight / hull surface area: 34 lbs/sq ft or 165 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.08
      - Overall: 0.58
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

7t - FC
24t - 6  x 21"  Torpedoes
5t - ASW Reserve