Japanese Ship Designs 1918+

[Jefgte]

When I look at the list of Japanese cruisers...
You should think about building 5000t to 6000t SC.

[Desertfox]

At this point the Japanese cruisers are basically glorified destroyer leaders, so the lack of proper armor is a risk worth taking. The next batch will have proper armor.

[Desertfox]

A proper heavy cruiser since Japan has a critical lack of cruisers.

Myoko class, Japan Heavy Cruiser laid down 1922

Displacement:
   9,901 t light; 10,377 t standard; 11,328 t normal; 12,090 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (640.00 ft / 640.00 ft) x 64.00 ft x (22.00 / 23.03 ft)
   (195.07 m / 195.07 m) x 19.51 m  x (6.71 / 7.02 m)

Armament:
      10 - 8.00" / 203 mm 50.0 cal guns - 271.01lbs / 122.93kg shells, 130 per gun
     Breech loading guns in turret on barbette mounts, 1922 Model
     5 x Twin mounts on centreline ends, majority forward
      2 raised mounts - superfiring
      8 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 190 per gun
     Quick firing guns in deck mounts, 1922 Model
     8 x Single mounts on sides, evenly spread
      8 - 1.00" / 25.4 mm 70.0 cal guns - 0.56lbs / 0.25kg shells, 150 per gun
     Machine guns in deck mounts, 1922 Model
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
      4 - 1.00" / 25.4 mm 70.0 cal guns - 0.56lbs / 0.25kg shells, 150 per gun
     Anti-air guns in deck mounts, 1922 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 3,221 lbs / 1,461 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4.00" / 102 mm   455.00 ft / 138.68 m   10.00 ft / 3.05 m
   Ends:   Unarmoured
     Main Belt covers 109 % of normal length

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

   - Protected deck - single deck:
   For and Aft decks: 1.50" / 38 mm

   - Conning towers: Forward 5.00" / 127 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 85,980 shp / 64,141 Kw = 32.00 kts
   Range 7,200nm at 14.00 kts
   Bunker at max displacement = 1,713 tons

Complement:
   548 - 713

Cost:
   £2.897 million / $11.588 million

Distribution of weights at normal displacement:
   Armament: 765 tons, 6.8 %
      - Guns: 765 tons, 6.8 %
   Armour: 1,736 tons, 15.3 %
      - Belts: 733 tons, 6.5 %
      - Armament: 493 tons, 4.4 %
      - Armour Deck: 455 tons, 4.0 %
      - Conning Tower: 54 tons, 0.5 %
   Machinery: 2,917 tons, 25.7 %
   Hull, fittings & equipment: 4,323 tons, 38.2 %
   Fuel, ammunition & stores: 1,427 tons, 12.6 %
   Miscellaneous weights: 160 tons, 1.4 %
      - On freeboard deck: 50 tons
      - Above deck: 110 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     10,244 lbs / 4,647 Kg = 40.0 x 8.0 " / 203 mm shells or 1.5 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 3.2 ft / 1.0 m
   Roll period: 15.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.55
   Seaboat quality  (Average = 1.00): 1.01

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: 10.00 : 1
   'Natural speed' for length: 25.30 kts
   Power going to wave formation at top speed: 52 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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:   40.00 %,  22.00 ft / 6.71 m,  17.00 ft / 5.18 m
      - Forward deck:   30.00 %,  17.00 ft / 5.18 m,  15.00 ft / 4.57 m
      - Aft deck:   15.00 %,  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:      16.90 ft / 5.15 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 108.6 %
      - Above water (accommodation/working, high = better): 141.1 %
   Waterplane Area: 25,919 Square feet or 2,408 Square metres
   Displacement factor (Displacement / loading): 106 %
   Structure weight / hull surface area: 118 lbs/sq ft or 577 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.08
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room

110t - Fire Control/LR Wireless
50t - 12 x 21" (H) Torpedo Tubes

[Desertfox]

Refurbishment of the San Fransisco class. Main changes are converted to oil firing, new secondaries, and relined main guns from Iberian 305mm/40 to Japanese 12"/40, and added FC. Haven't calculated the cost yet.

Edit: Cost is $4 and 0.3 BP per ship

Sagami class, Japan Battleship laid down 1897 (Engine 1902)

Displacement:
   12,009 t light; 12,624 t standard; 13,722 t normal; 14,599 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (402.10 ft / 402.10 ft) x 74.11 ft x (25.30 / 26.66 ft)
   (122.56 m / 122.56 m) x 22.59 m  x (7.71 / 8.13 m)

Armament:
      4 - 12.00" / 305 mm 40.0 cal guns - 828.07lbs / 375.60kg shells, 95 per gun
     Breech loading guns in turret on barbette mounts, 1897 Model
     2 x Twin mounts on centreline ends, evenly spread
      12 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1905 Model
     12 x Single mounts on sides, evenly spread
      8 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 200 per gun
     Breech loading guns in deck mounts, 1897 Model
     8 x Single 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 5,128 lbs / 2,326 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.0" / 305 mm   260.00 ft / 79.25 m   11.00 ft / 3.35 m
   Ends:   4.00" / 102 mm   120.00 ft / 36.58 m   11.00 ft / 3.35 m
     22.10 ft / 6.74 m Unarmoured ends
   Upper:   4.00" / 102 mm   225.00 ft / 68.58 m   7.00 ft / 2.13 m
     Main Belt covers 99 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12.0" / 305 mm   5.00" / 127 mm      12.0" / 305 mm
   2nd:   5.00" / 127 mm         -               -
   3rd:   1.00" / 25 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 2.50" / 64 mm
   Forecastle: 2.20" / 56 mm  Quarter deck: 2.50" / 64 mm

   - Conning towers: Forward 12.00" / 305 mm, Aft 5.00" / 127 mm

Machinery:
   Oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 18,425 ihp / 13,745 Kw = 19.40 kts
   Range 4,200nm at 14.00 kts
   Bunker at max displacement = 1,975 tons

Complement:
   633 - 824

Cost:
   £1.137 million / $4.547 million

Distribution of weights at normal displacement:
   Armament: 796 tons, 5.8 %
      - Guns: 796 tons, 5.8 %
   Armour: 4,207 tons, 30.7 %
      - Belts: 2,042 tons, 14.9 %
      - Armament: 922 tons, 6.7 %
      - Armour Deck: 1,033 tons, 7.5 %
      - Conning Towers: 210 tons, 1.5 %
   Machinery: 2,538 tons, 18.5 %
   Hull, fittings & equipment: 4,063 tons, 29.6 %
   Fuel, ammunition & stores: 1,712 tons, 12.5 %
   Miscellaneous weights: 405 tons, 3.0 %
      - Hull below water: 100 tons
      - Hull above water: 120 tons
      - On freeboard deck: 80 tons
      - Above deck: 105 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     18,329 lbs / 8,314 Kg = 21.2 x 12.0 " / 305 mm shells or 2.1 torpedoes
   Stability (Unstable if below 1.00): 1.36
   Metacentric height 5.5 ft / 1.7 m
   Roll period: 13.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.52
   Seaboat quality  (Average = 1.00): 1.60

Hull form characteristics:
   Hull has low quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.637 / 0.643
   Length to Beam Ratio: 5.43 : 1
   'Natural speed' for length: 20.05 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 44
   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:   27.00 %,  23.00 ft / 7.01 m,  21.00 ft / 6.40 m
      - Forward deck:   30.00 %,  21.00 ft / 6.40 m,  21.00 ft / 6.40 m
      - Aft deck:   17.00 %,  21.00 ft / 6.40 m,  21.00 ft / 6.40 m
      - Quarter deck:   26.00 %,  12.40 ft / 3.78 m,  12.40 ft / 3.78 m
      - Average freeboard:      18.98 ft / 5.79 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 86.8 %
      - Above water (accommodation/working, high = better): 142.5 %
   Waterplane Area: 22,557 Square feet or 2,096 Square metres
   Displacement factor (Displacement / loading): 105 %
   Structure weight / hull surface area: 134 lbs/sq ft or 654 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.75
      - Overall: 1.00
   Adequate 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

105t - Fire Control/LR Wireless
80t - 4 x 10t boats
120t - Improve Accommodations/Flag Facilities
100t - Pumps/Damage Control

[TacCovert4]

That's a lot of secondaries.

[Desertfox]

It's actually alot less than the original ship...

[The Rock Doctor]

No medium/heavy AA?

[Desertfox]

Japan will care about AA when aircraft show they can actually do anything, also I don't have any actual AA guns other than MGs, which there is space on board for some Marine LMG teams.

[Desertfox]

Refurbishment of the two remaining Yodo class scout cruisers. Engines are refurbished and fully converted to oil-firing. Armament upgraded to the new 5/50" twins as used on the Fubukis, and misc weight used to add minelaying capability. Basically turning both ships into minelayers/colonial gunboats.

Cost is $1.5 and 0.4 BP per ship

Yodo class, Japan Scout Cruiser laid down 1906 (Engine 1911)

Displacement:
   1,504 t light; 1,566 t standard; 1,834 t normal; 2,048 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (330.00 ft / 330.00 ft) x 34.00 ft x (13.00 / 14.06 ft)
   (100.58 m / 100.58 m) x 10.36 m  x (3.96 / 4.28 m)

Armament:
      4 - 5.00" / 127 mm 50.0 cal guns - 66.16lbs / 30.01kg shells, 170 per gun
     Quick firing guns in deck and hoist mounts, 1921 Model
     2 x Twin mounts on centreline ends, evenly spread
      8 - 1.00" / 25.4 mm 45.0 cal guns - 0.50lbs / 0.23kg shells, 150 per gun
     Machine guns in deck mounts, 1906 Model
     4 x Twin mounts on sides, evenly spread
      Weight of broadside 269 lbs / 122 kg
      Main Torpedoes
      4 - 18.0" / 457 mm, 0.00 ft / 0.00 m torpedoes - 0.000 t each, 0.000 t total
   In 2 sets of deck mounted side rotating tubes

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

   - Armoured deck - multiple decks:
   For and Aft decks: 0.50" / 13 mm

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

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 13,548 shp / 10,107 Kw = 25.00 kts
   Range 7,400nm at 11.00 kts
   Bunker at max displacement = 482 tons

Complement:
   139 - 182

Cost:
   £0.158 million / $0.632 million

Distribution of weights at normal displacement:
   Armament: 64 tons, 3.5 %
      - Guns: 64 tons, 3.5 %
   Armour: 43 tons, 2.4 %
      - Armament: 8 tons, 0.4 %
      - Armour Deck: 34 tons, 1.8 %
      - Conning Tower: 2 tons, 0.1 %
   Machinery: 550 tons, 30.0 %
   Hull, fittings & equipment: 563 tons, 30.7 %
   Fuel, ammunition & stores: 330 tons, 18.0 %
   Miscellaneous weights: 283 tons, 15.4 %
      - Hull above water: 18 tons
      - On freeboard deck: 230 tons
      - Above deck: 35 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,424 lbs / 646 Kg = 22.8 x 5.0 " / 127 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 1.2 ft / 0.4 m
   Roll period: 13.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.32
   Seaboat quality  (Average = 1.00): 0.93

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.440 / 0.454
   Length to Beam Ratio: 9.71 : 1
   'Natural speed' for length: 18.17 kts
   Power going to wave formation at top speed: 56 %
   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:   50.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
      - Forward deck:   30.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
      - Aft deck:   5.00 %,  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:      10.00 ft / 3.05 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 112.9 %
      - Above water (accommodation/working, high = better): 97.2 %
   Waterplane Area: 7,100 Square feet or 660 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 51 lbs/sq ft or 250 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.86
      - Longitudinal: 1.27
      - Overall: 0.90
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

35t - LR Wireless + FC
12t - 4 x21"  Fixed Torpedoes + 2 reloads
150t - Mines
80t - 2 x 20t boats/MTBs

[Desertfox]

The Japanese Army has been clamoring for some modern fire-support ships for some time now, with the Takasago class PCs being almost 27 years old at this time and hopelessly outdated and the ex-Wilno battleship proving to be a bit expensive to operate. After some wheeling and dealing the Army managed to secure funding for a pair of modern gunboats, however the stipulation was made that they could not use 12" guns.

Takasago, Japan Army Gunboat laid down 1923

Displacement:
   3,100 t light; 3,382 t standard; 3,513 t normal; 3,618 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (300.00 ft / 300.00 ft) x 57.00 ft x (14.10 / 14.42 ft)
   (91.44 m / 91.44 m) x 17.37 m  x (4.30 / 4.40 m)

Armament:
      4 - 10.00" / 254 mm 45.0 cal guns - 504.26lbs / 228.73kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1923 Model
     2 x Twin mounts on centreline ends, evenly spread
      4 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 150 per gun
     Breech loading guns in deck and hoist mounts, 1923 Model
     2 x Twin mounts on centreline ends, evenly spread
      2 raised mounts
      4 - 3.00" / 76.2 mm 45.0 cal guns - 13.62lbs / 6.18kg shells, 250 per gun
     Anti-air guns in deck mounts, 1923 Model
     4 x Single mounts on sides, evenly spread
      8 - 1.00" / 25.4 mm 45.0 cal guns - 0.50lbs / 0.23kg shells, 150 per gun
     Machine guns in deck mounts, 1923 Model
     4 x Twin mounts on sides, evenly spread
      Weight of broadside 2,511 lbs / 1,139 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   5.00" / 127 mm   200.00 ft / 60.96 m   10.00 ft / 3.05 m
   Ends:   Unarmoured
     Main Belt covers 103 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.00" / 127 mm   1.00" / 25 mm      5.00" / 127 mm
   2nd:   1.00" / 25 mm   0.50" / 13 mm      1.00" / 25 mm

   - Armoured deck - single deck:
   For and Aft decks: 1.00" / 25 mm

   - Conning towers: Forward 5.00" / 127 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 5,080 shp / 3,790 Kw = 17.00 kts
   Range 4,100nm at 10.00 kts
   Bunker at max displacement = 236 tons

Complement:
   227 - 296

Cost:
   £1.062 million / $4.249 million

Distribution of weights at normal displacement:
   Armament: 552 tons, 15.7 %
      - Guns: 552 tons, 15.7 %
   Armour: 771 tons, 21.9 %
      - Belts: 444 tons, 12.6 %
      - Armament: 145 tons, 4.1 %
      - Armour Deck: 158 tons, 4.5 %
      - Conning Tower: 25 tons, 0.7 %
   Machinery: 170 tons, 4.8 %
   Hull, fittings & equipment: 1,507 tons, 42.9 %
   Fuel, ammunition & stores: 414 tons, 11.8 %
   Miscellaneous weights: 100 tons, 2.8 %
      - On freeboard deck: 20 tons
      - Above deck: 80 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,852 lbs / 2,201 Kg = 9.7 x 10.0 " / 254 mm shells or 1.5 torpedoes
   Stability (Unstable if below 1.00): 1.24
   Metacentric height 3.2 ft / 1.0 m
   Roll period: 13.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.58
   Seaboat quality  (Average = 1.00): 1.23

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.510 / 0.514
   Length to Beam Ratio: 5.26 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 57
   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 %,  15.00 ft / 4.57 m,  10.00 ft / 3.05 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:      10.60 ft / 3.23 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 77.7 %
      - Above water (accommodation/working, high = better): 96.5 %
   Waterplane Area: 11,498 Square feet or 1,068 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 118 lbs/sq ft or 577 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.91
      - Longitudinal: 2.39
      - Overall: 1.00
   Excellent 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

55t - FC
25t - LR Wireless
20t - Observation Balloon

[Desertfox]

Japan desperately needs modern cruisers, the Azulas will rectify that problem, with good speed, decent armor (for a Japanese cruiser), and a very heavy rapid-firing armament.

Azula class, Japan Light Cruiser laid down 1923

Displacement:
   5,701 t light; 5,935 t standard; 6,607 t normal; 7,144 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (550.00 ft / 550.00 ft) x 55.00 ft x (18.20 / 19.20 ft)
   (167.64 m / 167.64 m) x 16.76 m  x (5.55 / 5.85 m)

Armament:
      10 - 6.00" / 152 mm 50.0 cal guns - 114.33lbs / 51.86kg shells, 150 per gun
     Quick firing guns in deck and hoist mounts, 1923 Model
     5 x Twin mounts on centreline ends, majority aft
      2 raised mounts - superfiring
      4 - 3.00" / 76.2 mm 70.0 cal guns - 15.13lbs / 6.86kg shells, 200 per gun
     Anti-air guns in deck mounts, 1923 Model
     4 x Single mounts on sides, evenly spread
      8 - 1.00" / 25.4 mm 45.0 cal guns - 0.50lbs / 0.23kg shells, 150 per gun
     Machine guns in deck mounts, 1923 Model
     4 x Twin mounts on sides, evenly spread
      Weight of broadside 1,208 lbs / 548 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.00" / 76 mm   442.00 ft / 134.72 m   10.00 ft / 3.05 m
   Ends:   Unarmoured
     Main Belt covers 124 % of normal length

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

   - Armoured deck - single deck:
   For and Aft decks: 1.00" / 25 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 64,703 shp / 48,268 Kw = 32.00 kts
   Range 7,200nm at 14.00 kts
   Bunker at max displacement = 1,209 tons

Complement:
   366 - 476

Cost:
   £1.825 million / $7.301 million

Distribution of weights at normal displacement:
   Armament: 290 tons, 4.4 %
      - Guns: 290 tons, 4.4 %
   Armour: 835 tons, 12.6 %
      - Belts: 524 tons, 7.9 %
      - Armament: 55 tons, 0.8 %
      - Armour Deck: 256 tons, 3.9 %
   Machinery: 2,163 tons, 32.7 %
   Hull, fittings & equipment: 2,302 tons, 34.8 %
   Fuel, ammunition & stores: 906 tons, 13.7 %
   Miscellaneous weights: 112 tons, 1.7 %
      - On freeboard deck: 58 tons
      - Above deck: 54 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,598 lbs / 2,086 Kg = 42.6 x 6.0 " / 152 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 2.6 ft / 0.8 m
   Roll period: 14.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.43
   Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.420 / 0.431
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 23.45 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 68
   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 %,  20.00 ft / 6.10 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:   25.00 %,  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:      15.60 ft / 4.75 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 123.6 %
      - Above water (accommodation/working, high = better): 147.2 %
   Waterplane Area: 18,859 Square feet or 1,752 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 83 lbs/sq ft or 406 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
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

29t - Fire Control
25t - Long-range wireless
48t - 12 x 21" (H) Torpedo Tubes
10t - Reserve for Minesweepng/ASW gear

[Jefgte]

The Japanese Army has been clamoring for some modern fire-support ships for some time now, with the Takasago class PCs being almost 27 years old at this time and hopelessly outdated and the ex-Wilno battleship proving to be a bit expensive to operate. After some wheeling and dealing the Army managed to secure funding for a pair of modern gunboats, however the stipulation was made that they could not use 12" guns.

Return to the army 2 recent cruisers with 2T2x203

Japan desperately needs modern cruisers...

Save those new BPs for another 5701t cruiser.

[Desertfox]

Unfortunately the Army is being very insistent and all the 8" cruisers are either old or the four newish protected cruisers that the Navy still needs. Also I am entering the stage where I am limited more by dock space than by BP, hence why the Navy made sure the Army gunboats could fit in a 300ft dock.   

[TacCovert4]

Also makes sense given that the number one enemy of the Imperial Japanese Navy has traditionally been the Imperial Japanese Army.

[The Rock Doctor]

I look forward to the IJN retaliating by purchasing land points.