Ships of the Imperial Japanese Navy (pre-start)

[Darman]

Suma, Empire of Japan Protected Cruiser laid down 1896

Displacement:
   2,555 t light; 2,679 t standard; 3,000 t normal; 3,257 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (307.00 ft / 307.00 ft) x 41.00 ft x (15.00 / 16.02 ft)
   (93.57 m / 93.57 m) x 12.50 m  x (4.57 / 4.88 m)

Armament:
      2 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 250 per gun
     Breech loading guns in deck mounts, 1896 Model
     1 x Single mount on centreline, forward deck forward
     1 x Single mount on centreline, aft deck aft
      6 - 4.70" / 119 mm 45.0 cal guns - 52.35lbs / 23.75kg shells, 150 per gun
     Breech loading guns in deck mounts, 1896 Model
     6 x Single mounts on sides amidships
      6 raised mounts
      10 - 1.85" / 47.0 mm 45.0 cal guns - 3.19lbs / 1.45kg shells, 500 per gun
     Quick firing guns in deck mounts, 1896 Model
     8 x Single mounts on sides amidships
      8 raised mounts
     2 x Single mounts on centreline ends, evenly spread
      2 raised mounts
      Weight of broadside 553 lbs / 251 kg
      2 - 14.0" / 356 mm, 12.00 ft / 3.66 m torpedoes - 0.243 t each, 0.486 t total
   In 1 sets of deck mounted carriage/fixed tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Ends:   Unarmoured
   Upper:   2.00" / 51 mm   199.55 ft / 60.82 m   5.00 ft / 1.52 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   4.50" / 114 mm   1.00" / 25 mm            -

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

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 8,394 ihp / 6,262 Kw = 20.00 kts
   Range 4,500nm at 10.00 kts
   Bunker at max displacement = 578 tons (100% coal)

Complement:
   202 - 263

Cost:
   £0.303 million / $1.213 million

Distribution of weights at normal displacement:
   Armament: 83 tons, 2.8 %
      - Guns: 83 tons, 2.8 %
      - Torpedoes: 0 tons, 0.0 %
   Armour: 271 tons, 9.0 %
      - Belts: 85 tons, 2.8 %
      - Armament: 22 tons, 0.7 %
      - Armour Deck: 165 tons, 5.5 %
   Machinery: 1,345 tons, 44.8 %
   Hull, fittings & equipment: 856 tons, 28.5 %
   Fuel, ammunition & stores: 445 tons, 14.8 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,667 lbs / 756 Kg = 15.4 x 6.0 " / 152 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.66
   Metacentric height 3.1 ft / 0.9 m
   Roll period: 9.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0.20
   Seaboat quality  (Average = 1.00): 1.44

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.556 / 0.565
   Length to Beam Ratio: 7.49 : 1
   'Natural speed' for length: 17.52 kts
   Power going to wave formation at top speed: 54 %
   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:   20.00 %,  12.50 ft / 3.81 m,  12.50 ft / 3.81 m
      - Forward deck:   30.00 %,  12.50 ft / 3.81 m,  12.50 ft / 3.81 m
      - Aft deck:   35.00 %,  12.50 ft / 3.81 m,  12.50 ft / 3.81 m
      - Quarter deck:   15.00 %,  12.50 ft / 3.81 m,  12.50 ft / 3.81 m
      - Average freeboard:      12.50 ft / 3.81 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 154.3 %
      - Above water (accommodation/working, high = better): 103.8 %
   Waterplane Area: 8,835 Square feet or 821 Square metres
   Displacement factor (Displacement / loading): 91 %
   Structure weight / hull surface area: 65 lbs/sq ft or 317 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.93
      - Overall: 1.04
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Deck-mounted torpedo tubes located forward

[Darman]

Fuji, Empire of Japan Battleship laid down 1896

Displacement:
   11,734 t light; 12,297 t standard; 13,008 t normal; 13,576 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (421.00 ft / 421.00 ft) x 73.00 ft x (26.50 / 27.42 ft)
   (128.32 m / 128.32 m) x 22.25 m  x (8.08 / 8.36 m)

Armament:
      4 - 12.00" / 305 mm 40.0 cal guns - 828.08lbs / 375.61kg shells, 75 per gun
     Breech loading guns in turret on barbette mounts, 1896 Model
     2 x Twin mounts on centreline ends, evenly spread
      10 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 250 per gun
     Breech loading guns in casemate mounts, 1896 Model
     4 x Single mounts on sides, evenly spread
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      14 - 1.85" / 47.0 mm 40.0 cal guns - 3.20lbs / 1.45kg shells, 750 per gun
     Quick firing guns in deck mounts, 1896 Model
     14 x Single mounts on sides, evenly spread
      14 raised mounts
      10 - 1.85" / 47.0 mm 40.0 cal guns - 2.49lbs / 1.13kg shells, 150 per gun
     Quick firing guns in deck mounts, 1896 Model
     10 x Single mounts on sides, evenly spread
      10 raised mounts
      Weight of broadside 4,417 lbs / 2,004 kg
      Main Torpedoes
      1 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedo - 0.386 t total
   submerged bow tube
      2nd Torpedoes
      4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.386 t each, 1.544 t total
   submerged side tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   18.0" / 457 mm   273.65 ft / 83.41 m   8.00 ft / 2.44 m
   Ends:   14.0" / 356 mm   147.33 ft / 44.91 m   8.00 ft / 2.44 m
   Upper:   4.00" / 102 mm   273.65 ft / 83.41 m   8.00 ft / 2.44 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   6.00" / 152 mm   4.00" / 102 mm      10.0" / 254 mm
   2nd:   6.00" / 152 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2.50" / 64 mm
   Forecastle: 2.50" / 64 mm  Quarter deck: 2.50" / 64 mm

   - Conning towers: Forward 14.00" / 356 mm, Aft 14.00" / 356 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 12,667 ihp / 9,450 Kw = 18.00 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 1,279 tons (100% coal)

Complement:
   608 - 791

Cost:
   £1.028 million / $4.113 million

Distribution of weights at normal displacement:
   Armament: 679 tons, 5.2 %
      - Guns: 675 tons, 5.2 %
      - Weapons: 4 tons, 0.0 %
   Armour: 4,665 tons, 35.9 %
      - Belts: 2,734 tons, 21.0 %
      - Armament: 590 tons, 4.5 %
      - Armour Deck: 1,009 tons, 7.8 %
      - Conning Towers: 334 tons, 2.6 %
   Machinery: 2,111 tons, 16.2 %
   Hull, fittings & equipment: 4,279 tons, 32.9 %
   Fuel, ammunition & stores: 1,273 tons, 9.8 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     16,215 lbs / 7,355 Kg = 18.8 x 12.0 " / 305 mm shells or 8.0 torpedoes
   Stability (Unstable if below 1.00): 1.30
   Metacentric height 5.0 ft / 1.5 m
   Roll period: 13.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 74 %
         - Recoil effect (Restricted arc if above 1.00): 0.37
   Seaboat quality  (Average = 1.00): 1.49

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.559 / 0.564
   Length to Beam Ratio: 5.77 : 1
   'Natural speed' for length: 20.52 kts
   Power going to wave formation at top speed: 45 %
   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:   20.00 %,  14.36 ft / 4.38 m,  14.36 ft / 4.38 m
      - Forward deck:   30.00 %,  14.36 ft / 4.38 m,  14.36 ft / 4.38 m
      - Aft deck:   35.00 %,  14.36 ft / 4.38 m,  14.36 ft / 4.38 m
      - Quarter deck:   15.00 %,  14.36 ft / 4.38 m,  14.36 ft / 4.38 m
      - Average freeboard:      14.36 ft / 4.38 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 76.9 %
      - Above water (accommodation/working, high = better): 97.3 %
   Waterplane Area: 21,630 Square feet or 2,009 Square metres
   Displacement factor (Displacement / loading): 109 %
   Structure weight / hull surface area: 147 lbs/sq ft or 715 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.05
      - Longitudinal: 2.18
      - Overall: 1.13
   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

Should be 35 caliber 12" main guns

[Darman]

Yoshino, Empire of Japan Protected Cruiser laid down 1892

Displacement:
   3,649 t light; 3,915 t standard; 4,500 t normal; 4,968 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (360.00 ft / 360.00 ft) x 46.50 ft x (17.00 / 18.40 ft)
   (109.73 m / 109.73 m) x 14.17 m  x (5.18 / 5.61 m)

Armament:
      4 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 250 per gun
     Breech loading guns in deck mounts, 1892 Model
     2 x Single mounts on centreline ends, evenly spread
     2 x Single mounts on sides, forward deck forward
      8 - 4.70" / 119 mm 45.0 cal guns - 52.35lbs / 23.75kg shells, 500 per gun
     Breech loading guns in casemate mounts, 1892 Model
     8 x Single mounts on sides, evenly spread
      Weight of broadside 833 lbs / 378 kg
      1 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedo - 0.334 t total
   In a submerged bow tube
      4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.334 t each, 1.336 t total
   In 4 sets of submerged side tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Ends:   Unarmoured
   Upper:   1.75" / 44 mm   234.00 ft / 71.32 m   5.00 ft / 1.52 m

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

   - Armoured deck - single deck: 1.00" / 25 mm For and Aft decks
   Forecastle: 1.75" / 44 mm  Quarter deck: 1.00" / 25 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 10,121 ihp / 7,550 Kw = 20.00 kts
   Range 6,000nm at 10.00 kts
   Bunker at max displacement = 1,053 tons (100% coal)

Complement:
   274 - 357

Cost:
   £0.418 million / $1.673 million

Distribution of weights at normal displacement:
   Armament: 121 tons, 2.7 %
      - Guns: 119 tons, 2.6 %
      - Torpedoes: 2 tons, 0.0 %
   Armour: 403 tons, 9.0 %
      - Belts: 87 tons, 1.9 %
      - Armament: 83 tons, 1.8 %
      - Armour Deck: 233 tons, 5.2 %
   Machinery: 1,807 tons, 40.2 %
   Hull, fittings & equipment: 1,318 tons, 29.3 %
   Fuel, ammunition & stores: 851 tons, 18.9 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,866 lbs / 1,300 Kg = 26.5 x 6.0 " / 152 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.74
   Metacentric height 3.9 ft / 1.2 m
   Roll period: 9.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 85 %
         - Recoil effect (Restricted arc if above 1.00): 0.16
   Seaboat quality  (Average = 1.00): 1.70

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.553 / 0.565
   Length to Beam Ratio: 7.74 : 1
   'Natural speed' for length: 18.97 kts
   Power going to wave formation at top speed: 49 %
   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:   20.00 %,  17.00 ft / 5.18 m,  13.28 ft / 4.05 m
      - Forward deck:   30.00 %,  13.28 ft / 4.05 m,  13.28 ft / 4.05 m
      - Aft deck:   35.00 %,  13.28 ft / 4.05 m,  13.28 ft / 4.05 m
      - Quarter deck:   15.00 %,  13.28 ft / 4.05 m,  13.28 ft / 4.05 m
      - Average freeboard:      13.58 ft / 4.14 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 143.5 %
      - Above water (accommodation/working, high = better): 108.2 %
   Waterplane Area: 11,721 Square feet or 1,089 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 76 lbs/sq ft or 370 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.00
      - Longitudinal: 1.75
      - Overall: 1.05
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Darman]

Asahi, Empire of Japan Battleship laid down 1899

Displacement:
   12,918 t light; 13,797 t standard; 15,400 t normal; 16,683 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (425.25 ft / 425.25 ft) x 75.00 ft x (27.25 / 29.14 ft)
   (129.62 m / 129.62 m) x 22.86 m  x (8.31 / 8.88 m)

Armament:
      4 - 12.00" / 305 mm 40.0 cal guns - 850.00lbs / 385.55kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1899 Model
     2 x Twin mounts on centreline ends, evenly spread
      14 - 6.00" / 152 mm 45.0 cal guns - 100.00lbs / 45.36kg shells, 250 per gun
     Breech loading guns in casemate mounts, 1899 Model
     8 x Single mounts on sides, evenly spread
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      20 - 3.00" / 76.2 mm 45.0 cal guns - 12.50lbs / 5.67kg shells, 500 per gun
     Quick firing guns in deck mounts, 1899 Model
     20 x Single mounts on sides, evenly spread
      16 - 1.85" / 47.0 mm 45.0 cal guns - 3.19lbs / 1.45kg shells, 750 per gun
     Quick firing guns in deck mounts, 1899 Model
     16 x Single mounts on sides, evenly spread
      16 raised mounts
      Weight of broadside 5,101 lbs / 2,314 kg
      4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.431 t each, 1.724 t total
   In 4 sets of submerged side tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.00" / 229 mm   250.00 ft / 76.20 m   10.39 ft / 3.17 m
   Ends:   4.00" / 102 mm   148.82 ft / 45.36 m   10.39 ft / 3.17 m
     26.43 ft / 8.06 m Unarmoured ends
     Main Belt covers 90 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   14.0" / 356 mm   6.00" / 152 mm      10.0" / 254 mm
   2nd:   6.00" / 152 mm   2.00" / 51 mm            -

   - Armoured deck - multiple decks: 2.50" / 64 mm For and Aft decks
   Forecastle: 2.50" / 64 mm  Quarter deck: 2.50" / 64 mm

   - Conning towers: Forward 14.00" / 356 mm,  Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 14,297 ihp / 10,665 Kw = 18.00 kts
   Range 9,000nm at 10.00 kts
   Bunker at max displacement = 2,886 tons (100% coal)

Complement:
   690 - 898

Cost:
   £1.133 million / $4.533 million

Distribution of weights at normal displacement:
   Armament: 815 tons, 5.3 %
      - Guns: 814 tons, 5.3 %
      - Torpedoes: 2 tons, 0.0 %
   Armour: 3,365 tons, 21.9 %
      - Belts: 1,301 tons, 8.4 %
      - Armament: 770 tons, 5.0 %
      - Armour Deck: 1,108 tons, 7.2 %
      - Conning Tower: 187 tons, 1.2 %
   Machinery: 2,269 tons, 14.7 %
   Hull, fittings & equipment: 6,468 tons, 42.0 %
   Fuel, ammunition & stores: 2,482 tons, 16.1 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     20,856 lbs / 9,460 Kg = 24.1 x 12.0 " / 305 mm shells or 2.7 torpedoes
   Stability (Unstable if below 1.00): 1.44
   Metacentric height 6.1 ft / 1.9 m
   Roll period: 12.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 75 %
         - Recoil effect (Restricted arc if above 1.00): 0.32
   Seaboat quality  (Average = 1.00): 1.51

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.620 / 0.628
   Length to Beam Ratio: 5.67 : 1
   'Natural speed' for length: 20.62 kts
   Power going to wave formation at top speed: 47 %
   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:   20.00 %,  15.50 ft / 4.72 m,  14.50 ft / 4.42 m
      - Forward deck:   30.00 %,  14.44 ft / 4.40 m,  14.44 ft / 4.40 m
      - Aft deck:   35.00 %,  14.44 ft / 4.40 m,  14.44 ft / 4.40 m
      - Quarter deck:   15.00 %,  14.44 ft / 4.40 m,  14.44 ft / 4.40 m
      - Average freeboard:      14.53 ft / 4.43 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 72.5 %
      - Above water (accommodation/working, high = better): 94.7 %
   Waterplane Area: 23,769 Square feet or 2,208 Square metres
   Displacement factor (Displacement / loading): 135 %
   Structure weight / hull surface area: 203 lbs/sq ft or 991 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.53
      - Longitudinal: 3.20
      - Overall: 1.64
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Darman]

Asama, Empire of Japan Armored Cruiser laid down 1897

Displacement:
   8,368 t light; 8,850 t standard; 9,700 t normal; 10,380 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (408.00 ft / 408.00 ft) x 67.00 ft x (24.50 / 25.80 ft)
   (124.36 m / 124.36 m) x 20.42 m  x (7.47 / 7.86 m)

Armament:
      4 - 8.00" / 203 mm 45.0 cal guns - 250.00lbs / 113.40kg shells, 180 per gun
     Breech loading guns in turret on barbette mounts, 1897 Model
     2 x Twin mounts on centreline ends, evenly spread
      14 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 200 per gun
     Breech loading guns in casemate mounts, 1897 Model
     14 x Single mounts on sides amidships
      6 hull mounts in casemates- Limited use in all but light seas
      12 - 3.00" / 76.2 mm 40.0 cal guns - 12.94lbs / 5.87kg shells, 250 per gun
     Quick firing guns in deck mounts, 1897 Model
     12 x Single mounts on sides, evenly spread
      4 raised mounts
      8 - 1.85" / 47.0 mm 45.0 cal guns - 3.19lbs / 1.45kg shells, 300 per gun
     Breech loading guns in deck mounts, 1897 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      Weight of broadside 2,630 lbs / 1,193 kg
      4 - 14.0" / 356 mm, 15.00 ft / 4.57 m torpedoes - 0.310 t each, 1.239 t total
   In 4 sets of submerged side tubes
      1 - 0.6" / 14 mm, 49.21 ft / 15.00 m torpedo - 0.029 t total
   In a submerged bow tube

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.10" / 180 mm   265.20 ft / 80.83 m   9.82 ft / 2.99 m
   Ends:   3.50" / 89 mm   142.78 ft / 43.52 m   9.82 ft / 2.99 m
   Upper:   4.90" / 124 mm   265.20 ft / 80.83 m   8.00 ft / 2.44 m
     Main Belt covers 100 % of normal length
     Main belt does not fully cover magazines and engineering spaces

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   6.00" / 152 mm   3.00" / 76 mm      6.00" / 152 mm
   2nd:   6.00" / 152 mm         -               -
   3rd:   1.00" / 25 mm         -               -

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

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 20,810 ihp / 15,525 Kw = 21.50 kts
   Range 6,000nm at 10.00 kts
   Bunker at max displacement = 1,530 tons (100% coal)

Complement:
   488 - 635

Cost:
   £0.937 million / $3.746 million

Distribution of weights at normal displacement:
   Armament: 456 tons, 4.7 %
      - Guns: 455 tons, 4.7 %
      - Torpedoes: 1 tons, 0.0 %
   Armour: 1,934 tons, 19.9 %
      - Belts: 1,436 tons, 14.8 %
      - Armament: 380 tons, 3.9 %
      - Conning Tower: 118 tons, 1.2 %
   Machinery: 3,412 tons, 35.2 %
   Hull, fittings & equipment: 2,566 tons, 26.5 %
   Fuel, ammunition & stores: 1,332 tons, 13.7 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6,213 lbs / 2,818 Kg = 24.3 x 8.0 " / 203 mm shells or 1.1 torpedoes
   Stability (Unstable if below 1.00): 1.60
   Metacentric height 6.0 ft / 1.8 m
   Roll period: 11.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 66 %
         - Recoil effect (Restricted arc if above 1.00): 0.18
   Seaboat quality  (Average = 1.00): 1.32

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.507 / 0.515
   Length to Beam Ratio: 6.09 : 1
   'Natural speed' for length: 20.20 kts
   Power going to wave formation at top speed: 53 %
   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:   20.00 %,  18.00 ft / 5.49 m,  14.14 ft / 4.31 m
      - Forward deck:   30.00 %,  14.14 ft / 4.31 m,  14.14 ft / 4.31 m
      - Aft deck:   35.00 %,  14.14 ft / 4.31 m,  14.14 ft / 4.31 m
      - Quarter deck:   15.00 %,  14.14 ft / 4.31 m,  14.14 ft / 4.31 m
      - Average freeboard:      14.45 ft / 4.40 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 132.0 %
      - Above water (accommodation/working, high = better): 101.2 %
   Waterplane Area: 18,329 Square feet or 1,703 Square metres
   Displacement factor (Displacement / loading): 94 %
   Structure weight / hull surface area: 104 lbs/sq ft or 506 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.95
      - Overall: 1.01
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Good seaboat, rides out heavy weather easily

http://en.wikipedia.org/wiki/Asama_class_cruiser

[snip]

1 - 0.6" / 14 mm, 49.21 ft / 15.00 m torpedo - 0.029 t total
   In a submerged bow tube

"Sir, the enemy is closing!" "Fire the Photon Torpedo!"

Might want fix that.

[Darman]

New and official version:

Asama, Empire of Japan Armored Cruiser laid down 1897

Displacement:
   8,510 t light; 8,998 t standard; 10,000 t normal; 10,801 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (408.00 ft / 408.00 ft) x 67.00 ft x (24.50 / 26.01 ft)
   (124.36 m / 124.36 m) x 20.42 m  x (7.47 / 7.93 m)

Armament:
      4 - 8.00" / 203 mm 45.0 cal guns - 250.00lbs / 113.40kg shells, 180 per gun
     Breech loading guns in turret on barbette mounts, 1897 Model
     2 x Twin mounts on centreline ends, evenly spread
      14 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 200 per gun
     Breech loading guns in casemate mounts, 1897 Model
     14 x Single mounts on sides amidships
      6 hull mounts in casemates- Limited use in all but light seas
      12 - 3.00" / 76.2 mm 40.0 cal guns - 12.94lbs / 5.87kg shells, 250 per gun
     Quick firing guns in deck mounts, 1897 Model
     12 x Single mounts on sides, evenly spread
      4 raised mounts
      8 - 1.85" / 47.0 mm 45.0 cal guns - 3.19lbs / 1.45kg shells, 300 per gun
     Breech loading guns in deck mounts, 1897 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      Weight of broadside 2,630 lbs / 1,193 kg
      4 - 14.0" / 356 mm, 15.00 ft / 4.57 m torpedoes - 0.310 t each, 1.239 t total
   In 4 sets of submerged side tubes
      1 - 14.0" / 356 mm, 15.00 ft / 4.57 m torpedo - 0.310 t total
   In a submerged bow tube

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.10" / 180 mm   265.20 ft / 80.83 m   9.82 ft / 2.99 m
   Ends:   3.50" / 89 mm   142.78 ft / 43.52 m   9.82 ft / 2.99 m
   Upper:   4.90" / 124 mm   265.20 ft / 80.83 m   8.00 ft / 2.44 m
     Main Belt covers 100 % of normal length
     Main belt does not fully cover magazines and engineering spaces

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   6.00" / 152 mm   3.00" / 76 mm      6.00" / 152 mm
   2nd:   6.00" / 152 mm         -               -
   3rd:   1.00" / 25 mm         -               -

   - Protected deck - single deck: 1.00" / 25 mm For and Aft decks
   Forecastle: 1.00" / 25 mm  Quarter deck: 1.00" / 25 mm

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

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 19,441 ihp / 14,503 Kw = 21.00 kts
   Range 7,000nm at 10.00 kts
   Bunker at max displacement = 1,803 tons (100% coal)

Complement:
   499 - 650

Cost:
   £0.910 million / $3.641 million

Distribution of weights at normal displacement:
   Armament: 456 tons, 4.6 %
      - Guns: 455 tons, 4.5 %
      - Torpedoes: 2 tons, 0.0 %
   Armour: 2,291 tons, 22.9 %
      - Belts: 1,443 tons, 14.4 %
      - Armament: 380 tons, 3.8 %
      - Armour Deck: 347 tons, 3.5 %
      - Conning Tower: 120 tons, 1.2 %
   Machinery: 3,187 tons, 31.9 %
   Hull, fittings & equipment: 2,576 tons, 25.8 %
   Fuel, ammunition & stores: 1,490 tons, 14.9 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,514 lbs / 3,408 Kg = 29.4 x 8.0 " / 203 mm shells or 1.2 torpedoes
   Stability (Unstable if below 1.00): 1.58
   Metacentric height 5.9 ft / 1.8 m
   Roll period: 11.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 68 %
         - Recoil effect (Restricted arc if above 1.00): 0.19
   Seaboat quality  (Average = 1.00): 1.37

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.523 / 0.532
   Length to Beam Ratio: 6.09 : 1
   'Natural speed' for length: 20.20 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:   20.00 %,  18.00 ft / 5.49 m,  14.14 ft / 4.31 m
      - Forward deck:   30.00 %,  14.14 ft / 4.31 m,  14.14 ft / 4.31 m
      - Aft deck:   35.00 %,  14.14 ft / 4.31 m,  14.14 ft / 4.31 m
      - Quarter deck:   15.00 %,  14.14 ft / 4.31 m,  14.14 ft / 4.31 m
      - Average freeboard:      14.45 ft / 4.40 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 121.0 %
      - Above water (accommodation/working, high = better): 100.4 %
   Waterplane Area: 18,596 Square feet or 1,728 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 103 lbs/sq ft or 502 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.91
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Good seaboat, rides out heavy weather easily

http://en.wikipedia.org/wiki/Asama_class_cruiser

[Jefgte]

...   - Cross-sectional: 1.05
      - Longitudinal: 2.18
      - Overall: 1.13

Much of your Overall are sup to 1.00...


Jef  ;)

[Darman]

...   - Cross-sectional: 1.05
      - Longitudinal: 2.18
      - Overall: 1.13

Much of your Overall are sup to 1.00...


Jef  ;)

They should all be at or a little over 1.00 composite strength. 

[Darman]

The Emperor's shipyards have begun working on a class of river gunboats in 1899. 

Sumida, Empire of Japan Riverrine Gunboat laid down 1899

Displacement:
   143 t light; 147 t standard; 150 t normal; 152 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (145.00 ft / 145.00 ft) x 25.00 ft x (2.00 / 2.03 ft)
   (44.20 m / 44.20 m) x 7.62 m  x (0.61 / 0.62 m)

Armament:
      2 - 1.85" / 47.0 mm 40.0 cal guns - 3.04lbs / 1.38kg shells, 50 per gun
     Quick firing guns in deck mounts, 1899 Model
     2 x Single mounts on sides, aft deck centre
      1 - 4.50" / 114 mm 15.0 cal gun - 40.36lbs / 18.31kg shells, 50 per gun
     Quick firing gun in deck mount, 1899 Model
     1 x Single mount on centreline, forward deck forward
      4 - 0.50" / 12.7 mm 40.0 cal guns - 0.06lbs / 0.03kg shells, 250 per gun
     Machine guns in deck mounts, 1899 Model
     3 x Single mounts on sides, forward deck centre
     1 x Single mount on centreline, forward deck aft
      1 raised mount
      Weight of broadside 47 lbs / 21 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm   0.25" / 6 mm            -
   2nd:   1.00" / 25 mm   0.25" / 6 mm            -
   3rd:   0.25" / 6 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 165 ihp / 123 Kw = 10.00 kts
   Range 250nm at 8.00 kts
   Bunker at max displacement = 5 tons (100% coal)

Complement:
   20 - 27

Cost:
   £0.010 million / $0.039 million

Distribution of weights at normal displacement:
   Armament: 4 tons, 2.5 %
   Armour: 8 tons, 5.4 %
      - Armament: 8 tons, 5.4 %
   Machinery: 26 tons, 17.5 %
   Hull, fittings & equipment: 105 tons, 69.8 %
   Fuel, ammunition & stores: 7 tons, 4.9 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     736 lbs / 334 Kg = 232.3 x 1.9 " / 47 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.30
   Metacentric height 1.0 ft / 0.3 m
   Roll period: 10.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 61 %
         - Recoil effect (Restricted arc if above 1.00): 0.12
   Seaboat quality  (Average = 1.00): 1.22

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.724 / 0.725
   Length to Beam Ratio: 5.80 : 1
   'Natural speed' for length: 12.04 kts
   Power going to wave formation at top speed: 31 %
   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:   20.00 %,  11.00 ft / 3.35 m,  8.00 ft / 2.44 m
      - Forward deck:   30.00 %,  8.00 ft / 2.44 m,  8.00 ft / 2.44 m
      - Aft deck:   35.00 %,  8.00 ft / 2.44 m,  8.00 ft / 2.44 m
      - Quarter deck:   15.00 %,  8.00 ft / 2.44 m,  8.00 ft / 2.44 m
      - Average freeboard:      8.24 ft / 2.51 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 64.3 %
      - Above water (accommodation/working, high = better): 226.2 %
   Waterplane Area: 2,968 Square feet or 276 Square metres
   Displacement factor (Displacement / loading): 214 %
   Structure weight / hull surface area: 28 lbs/sq ft or 138 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.90
      - Overall: 1.01
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Good seaboat, rides out heavy weather easily

[KWorld]

<blink, blink>  Does Japan have any rivers that it needs gunboats on?

[Darman]

<blink, blink>  Does Japan have any rivers that it needs gunboats on?

..... yes....

[KWorld]

The Asama class has a flaw....

>      Main Belt covers 100 % of normal length
>      Main belt does not fully cover magazines and engineering spaces

[Darman]

The Asama class has a flaw....

>      Main Belt covers 100 % of normal length
>      Main belt does not fully cover magazines and engineering spaces

How should I change that?

[KWorld]

The Asama class has a flaw....

>      Main Belt covers 100 % of normal length
>      Main belt does not fully cover magazines and engineering spaces

How should I change that?

There are two ways to fix this: the first is to make the main belt longer (to do that, you can either adjust the length of the belt directly, or you move the forecastle and stern breakpoints further from the center of the ship, making the forecastle and the stern shorter).  The second is to reduce the speed, that will reduce the amount of space needed for the engines and hence the amount of belt length needed to protect them.