2nd Class Cruiser Size Comparison.

Top to bottom: Naniwa, Matsushima, Hashidate, Yoshino, Takasago, Chitose, Tone, Mirai.

Naniwa, Japan Cruiser Class 2 laid down 1884
Redesignated as Coast Defense Ship Class 2 as of 1/1/1912.



Ships: Naniwa, Takachiho
Displacement:
   3,428 t light; 3,622 t standard; 3,964 t normal; 4,237 t full load

Dimensions: Length overall / water x beam x draught
   301.84 ft / 301.84 ft x 45.93 ft x 20.01 ft (normal load)
   92.00 m / 92.00 m x 14.00 m  x 6.10 m

Armament:
     2 - 10.24" / 260 mm guns in single mounts, 488.01lbs / 221.36kg shells, 1884 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
     6 - 6.00" / 152 mm guns in single mounts, 98.28lbs / 44.58kg shells, 1884 Model
     Breech loading guns in casemate mounts
     on side, all amidships
     6 guns in hull casemates - Limited use in any sea
     2 - 2.24" / 57.0 mm guns in single mounts, 5.14lbs / 2.33kg shells, 1884 Model
     Quick firing guns in deck mounts
     on side, evenly spread
     2 guns in hull casemates - Limited use in any sea
     40 - 1.00" / 25.4 mm guns (10x4 guns), 0.46lbs / 0.21kg shells, 1884 Model
     Machine guns in deck mounts
     on side, evenly spread
     40 - 0.45" / 11.4 mm guns (4x10 guns), 0.04lbs / 0.02kg shells, 1884 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 1,596 lbs / 724 kg
   Shells per gun, main battery: 120
   4 - 15.0" / 380 mm submerged torpedo tubes

Armour:
  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.46" / 37 mm         -               -
   2nd:   1.18" / 30 mm         -         0.79" / 20 mm

  - Armour deck: 1.97" / 50 mm, Conning tower: 1.46" / 37 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 3 shafts, 7,755 ihp / 5,785 Kw = 18.50 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 616 tons (100% coal)

Complement:
   249 - 324

Cost:
   £0.490 million / $1.961 million

Distribution of weights at normal displacement:
   Armament: 199 tons, 5.0 %
   Armour: 389 tons, 9.8 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 44 tons, 1.1 %
      - Armour Deck: 336 tons, 8.5 %
      - Conning Tower: 8 tons, 0.2 %
   Machinery: 1,448 tons, 36.5 %
   Hull, fittings & equipment: 1,342 tons, 33.8 %
   Fuel, ammunition & stores: 536 tons, 13.5 %
   Miscellaneous weights: 50 tons, 1.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,104 lbs / 501 Kg = 2.3 x 10.2 " / 260 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.20
   Metacentric height 2.2 ft / 0.7 m
   Roll period: 13.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.54
   Seaboat quality  (Average = 1.00): 1.24

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 6.57 : 1
   'Natural speed' for length: 17.37 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 81
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      9.84 ft / 3.00 m
      - Forecastle (20 %):   9.84 ft / 3.00 m
      - Mid (50 %):      9.84 ft / 3.00 m
      - Quarterdeck (7 %):   9.84 ft / 3.00 m
      - Stern:      9.84 ft / 3.00 m
      - Average freeboard:   9.84 ft / 3.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172.2 %
      - Above water (accommodation/working, high = better): 69.5 %
   Waterplane Area: 9,237 Square feet or 858 Square metres
   Displacement factor (Displacement / loading): 78 %
   Structure weight / hull surface area: 93 lbs/sq ft or 453 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 2.21
      - Overall: 1.02
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

1 inch MG => Nordenfeld gun
0.45 inch MG => 10 barreled Gatling MG

Matsushima A, Japan Cruiser Class 2 laid down 1888
Redesignated as Coast Defense Ship Class 2 as of 1/1/1912.



Ships: Matsushima
Displacement:
   3,839 t light; 4,050 t standard; 4,371 t normal; 4,629 t full load

Dimensions: Length overall / water x beam x draught
   301.21 ft / 301.21 ft x 51.18 ft x 19.85 ft (normal load)
   91.81 m / 91.81 m x 15.60 m  x 6.05 m

Armament:
     1 - 12.60" / 320 mm guns in single mounts, 969.82lbs / 439.90kg shells, 1888 Model
     Breech loading gun in a turret (on a barbette)
     on centreline aft
     12 - 4.72" / 120 mm guns in single mounts, 51.14lbs / 23.20kg shells, 1888 Model
     Breech loading guns in casemate mounts
     on side, all amidships
     16 - 2.24" / 57.0 mm guns in single mounts, 5.48lbs / 2.49kg shells, 1888 Model
     Quick firing guns in deck mounts
     on side, evenly spread
     6 - 1.30" / 33.0 mm guns in single mounts, 1.06lbs / 0.48kg shells, 1888 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 1,678 lbs / 761 kg
   Shells per gun, main battery: 120
   4 - 14.2" / 360 mm submerged torpedo tubes

Armour:
  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.8" / 300 mm   3.94" / 100 mm      3.94" / 100 mm
   2nd:   3.94" / 100 mm         -         1.97" / 50 mm

  - Armour deck: 1.97" / 50 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 3 shafts, 5,134 ihp / 3,830 Kw = 16.50 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 579 tons (100% coal)

Complement:
   268 - 349

Cost:
   £0.450 million / $1.800 million

Distribution of weights at normal displacement:
   Armament: 210 tons, 4.8 %
   Armour: 617 tons, 14.1 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 243 tons, 5.6 %
      - Armour Deck: 374 tons, 8.6 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 996 tons, 22.8 %
   Hull, fittings & equipment: 1,916 tons, 43.8 %
   Fuel, ammunition & stores: 532 tons, 12.2 %
   Miscellaneous weights: 100 tons, 2.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,966 lbs / 1,345 Kg = 3.1 x 12.6 " / 320 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 2.6 ft / 0.8 m
   Roll period: 13.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.59
   Seaboat quality  (Average = 1.00): 1.81

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 5.89 : 1
   'Natural speed' for length: 17.36 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      13.12 ft / 4.00 m
      - Forecastle (20 %):   13.12 ft / 4.00 m
      - Mid (50 %):      13.12 ft / 4.00 m
      - Quarterdeck (7 %):   13.12 ft / 4.00 m
      - Stern:      13.12 ft / 4.00 m
      - Average freeboard:   13.12 ft / 4.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 121.9 %
      - Above water (accommodation/working, high = better): 95.8 %
   Waterplane Area: 10,272 Square feet or 954 Square metres
   Displacement factor (Displacement / loading): 100 %
   Structure weight / hull surface area: 119 lbs/sq ft or 581 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.05
      - Longitudinal: 3.40
      - Overall: 1.18
   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


Matsushima B, Japan Cruiser Class 2 laid down 1888
Redesignated as Coast Defense Ship Class 2 as of 1/1/1912.

Itsukushima


Hashidate

Ships: Itsukushima, Hashidate
Displacement:
   3,846 t light; 4,050 t standard; 4,371 t normal; 4,629 t full load

Dimensions: Length overall / water x beam x draught
   301.21 ft / 301.21 ft x 51.18 ft x 19.85 ft (normal load)
   91.81 m / 91.81 m x 15.60 m  x 6.05 m

Armament:
     1 - 12.60" / 320 mm guns in single mounts, 969.82lbs / 439.90kg shells, 1888 Model
     Breech loading gun in a turret (on a barbette)
     on centreline aft
     11 - 4.72" / 120 mm guns in single mounts, 51.14lbs / 23.20kg shells, 1888 Model
     Breech loading guns in casemate mounts
     on side, all amidships
     5 - 2.24" / 57.0 mm guns in single mounts, 5.48lbs / 2.49kg shells, 1888 Model
     Quick firing guns in deck mounts
     on side, evenly spread
     11 - 1.85" / 47.0 mm guns in single mounts, 3.07lbs / 1.39kg shells, 1888 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 1,594 lbs / 723 kg
   Shells per gun, main battery: 120
   4 - 14.2" / 360 mm submerged torpedo tubes

Armour:
  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.8" / 300 mm   3.94" / 100 mm      3.94" / 100 mm
   2nd:   3.94" / 100 mm         -         1.97" / 50 mm

  - Armour deck: 1.97" / 50 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 3 shafts, 5,134 ihp / 3,830 Kw = 16.50 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 579 tons (100% coal)

Complement:
   268 - 349

Cost:
   £0.441 million / $1.766 million

Distribution of weights at normal displacement:
   Armament: 199 tons, 4.6 %
   Armour: 606 tons, 13.9 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 232 tons, 5.3 %
      - Armour Deck: 374 tons, 8.6 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 997 tons, 22.8 %
   Hull, fittings & equipment: 1,944 tons, 44.5 %
   Fuel, ammunition & stores: 525 tons, 12.0 %
   Miscellaneous weights: 100 tons, 2.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,056 lbs / 1,386 Kg = 3.2 x 12.6 " / 320 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 2.6 ft / 0.8 m
   Roll period: 13.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.57
   Seaboat quality  (Average = 1.00): 1.81

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 5.89 : 1
   'Natural speed' for length: 17.36 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      13.12 ft / 4.00 m
      - Forecastle (20 %):   13.12 ft / 4.00 m
      - Mid (50 %):      13.12 ft / 4.00 m
      - Quarterdeck (7 %):   13.12 ft / 4.00 m
      - Stern:      13.12 ft / 4.00 m
      - Average freeboard:   13.12 ft / 4.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 120.0 %
      - Above water (accommodation/working, high = better): 95.8 %
   Waterplane Area: 10,272 Square feet or 954 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 121 lbs/sq ft or 590 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.07
      - Longitudinal: 3.48
      - Overall: 1.21
   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

Yoshino , Japan Cruiser Class 2 laid down 1892
Redesignated as Coast Defense Ship Class 2 as of 1/1/1917.



Displacement:
   3,753 t light; 3,907 t standard; 4,198 t normal; 4,430 t full load

Dimensions: Length overall / water x beam x draught
   357.61 ft / 357.61 ft x 46.49 ft x 16.99 ft (normal load)
   109.00 m / 109.00 m x 14.17 m  x 5.18 m

Armament:
     4 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1892 Model
     Breech loading guns in deck mounts with hoists
     on centreline, all aft
     8 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1892 Model
     Breech loading guns in casemate mounts
     on side, all amidships
     22 - 1.85" / 47.0 mm guns in single mounts, 3.17lbs / 1.44kg shells, 1892 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 923 lbs / 419 kg
   Shells per gun, main battery: 120
   5 - 14.2" / 360 mm submerged torpedo tubes

Armour:
  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   4.53" / 115 mm         -               -
   2nd:   1.18" / 30 mm         -         0.79" / 20 mm

  - Armour deck: 1.77" / 45 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 10,579 ihp / 7,892 Kw = 20.50 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 524 tons (100% coal)

Complement:
   259 - 338

Cost:
   £0.484 million / $1.935 million

Distribution of weights at normal displacement:
   Armament: 115 tons, 2.7 %
   Armour: 459 tons, 10.9 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 89 tons, 2.1 %
      - Armour Deck: 370 tons, 8.8 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 1,825 tons, 43.5 %
   Hull, fittings & equipment: 1,304 tons, 31.1 %
   Fuel, ammunition & stores: 445 tons, 10.6 %
   Miscellaneous weights: 50 tons, 1.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,289 lbs / 585 Kg = 11.9 x 6.0 " / 152 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 2.3 ft / 0.7 m
   Roll period: 12.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.34
   Seaboat quality  (Average = 1.00): 1.15

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.520
   Length to Beam Ratio: 7.69 : 1
   'Natural speed' for length: 18.91 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 87
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      9.84 ft / 3.00 m
      - Forecastle (20 %):   9.84 ft / 3.00 m
      - Mid (50 %):      9.84 ft / 3.00 m
      - Quarterdeck (7 %):   9.84 ft / 3.00 m
      - Stern:      9.84 ft / 3.00 m
      - Average freeboard:   9.84 ft / 3.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 177.8 %
      - Above water (accommodation/working, high = better): 81.7 %
   Waterplane Area: 11,282 Square feet or 1,048 Square metres
   Displacement factor (Displacement / loading): 81 %
   Structure weight / hull surface area: 78 lbs/sq ft or 382 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.00
      - Longitudinal: 1.23
      - Overall: 1.02
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform

Takasago, Japan Cruiser Class 2 laid down 1896
Redesignated as Coast Defense Ship Class 2 as of 1/1/1917.



Displacement:
   4,094 t light; 4,277 t standard; 4,565 t normal; 4,796 t full load

Dimensions: Length overall / water x beam x draught
   387.80 ft / 387.80 ft x 48.49 ft x 16.99 ft (normal load)
   118.20 m / 118.20 m x 14.78 m  x 5.18 m

Armament:
     2 - 8.00" / 203 mm guns in single mounts, 256.00lbs / 116.12kg shells, 1896 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
     10 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1896 Model
     Breech loading guns in casemate mounts
     on side, all amidships
     12 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1896 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 1,201 lbs / 545 kg
   Shells per gun, main battery: 120
   5 - 17.7" / 450 mm submerged torpedo tubes

Armour:
  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   4.53" / 115 mm   2.64" / 67 mm            -
   2nd:   2.64" / 67 mm         -               -

  - Armour deck: 2.48" / 63 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 10,741 ihp / 8,012 Kw = 20.50 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 520 tons (100% coal)

Complement:
   277 - 361

Cost:
   £0.516 million / $2.064 million

Distribution of weights at normal displacement:
   Armament: 150 tons, 3.3 %
   Armour: 690 tons, 15.1 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 115 tons, 2.5 %
      - Armour Deck: 575 tons, 12.6 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 1,761 tons, 38.6 %
   Hull, fittings & equipment: 1,444 tons, 31.6 %
   Fuel, ammunition & stores: 471 tons, 10.3 %
   Miscellaneous weights: 50 tons, 1.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,458 lbs / 661 Kg = 5.7 x 8.0 " / 203 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.16
   Metacentric height 2.2 ft / 0.7 m
   Roll period: 13.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.30
   Seaboat quality  (Average = 1.00): 1.05

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 8.00 : 1
   'Natural speed' for length: 19.69 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 95
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      8.20 ft / 2.50 m
      - Forecastle (20 %):   8.20 ft / 2.50 m
      - Mid (50 %):      8.20 ft / 2.50 m
      - Quarterdeck (7 %):   8.20 ft / 2.50 m
      - Stern:      8.20 ft / 2.50 m
      - Average freeboard:   8.20 ft / 2.50 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 166.6 %
      - Above water (accommodation/working, high = better): 70.7 %
   Waterplane Area: 12,529 Square feet or 1,164 Square metres
   Displacement factor (Displacement / loading): 83 %
   Structure weight / hull surface area: 82 lbs/sq ft or 400 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.07
      - Longitudinal: 1.01
      - Overall: 1.02
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform

Chitose, Japan Cruiser Class 2 laid down 1897
Redesignated as Coast Defense Ship Class 2 as of 1/1/1917.



Ships: Kasagi, Chitose
Displacement:
   4,495 t light; 4,687 t standard; 4,987 t normal; 5,227 t full load

Dimensions: Length overall / water x beam x draught
   387.14 ft / 387.14 ft x 49.21 ft x 17.62 ft (normal load)
   118.00 m / 118.00 m x 15.00 m  x 5.37 m

Armament:
     2 - 8.00" / 203 mm guns in single mounts, 256.00lbs / 116.12kg shells, 1897 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
     10 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1897 Model
     Breech loading guns in casemate mounts
     on side, all amidships
     12 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1897 Model
     Quick firing guns in deck mounts
     on side, evenly spread
     6 - 1.85" / 47.0 mm guns in single mounts, 3.17lbs / 1.44kg shells, 1897 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 1,220 lbs / 553 kg
   Shells per gun, main battery: 120
   4 - 17.7" / 450 mm submerged torpedo tubes

Armour:
  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   4.53" / 115 mm   2.64" / 67 mm            -
   2nd:   2.64" / 67 mm         -               -

  - Armour deck: 2.48" / 63 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 12,555 ihp / 9,366 Kw = 21.00 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 539 tons (100% coal)

Complement:
   296 - 385

Cost:
   £0.573 million / $2.294 million

Distribution of weights at normal displacement:
   Armament: 153 tons, 3.1 %
   Armour: 708 tons, 14.2 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 115 tons, 2.3 %
      - Armour Deck: 593 tons, 11.9 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 2,057 tons, 41.2 %
   Hull, fittings & equipment: 1,527 tons, 30.6 %
   Fuel, ammunition & stores: 492 tons, 9.9 %
   Miscellaneous weights: 50 tons, 1.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,662 lbs / 754 Kg = 6.5 x 8.0 " / 203 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.25
   Metacentric height 2.6 ft / 0.8 m
   Roll period: 12.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.31
   Seaboat quality  (Average = 1.00): 1.15

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.520
   Length to Beam Ratio: 7.87 : 1
   'Natural speed' for length: 19.68 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 87
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      9.84 ft / 3.00 m
      - Forecastle (20 %):   9.84 ft / 3.00 m
      - Mid (50 %):      9.84 ft / 3.00 m
      - Quarterdeck (7 %):   9.84 ft / 3.00 m
      - Stern:      9.84 ft / 3.00 m
      - Average freeboard:   9.84 ft / 3.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 170.3 %
      - Above water (accommodation/working, high = better): 81.9 %
   Waterplane Area: 12,929 Square feet or 1,201 Square metres
   Displacement factor (Displacement / loading): 82 %
   Structure weight / hull surface area: 81 lbs/sq ft or 397 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.04
      - Longitudinal: 1.18
      - Overall: 1.05
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform

Tone, Japan Cruiser Class 2 laid down 1905



Displacement:
   3,526 t light; 3,672 t standard; 4,216 t normal; 4,652 t full load

Dimensions: Length overall / water x beam x draught
   385.60 ft / 373.36 ft x 47.24 ft x 16.73 ft (normal load)
   117.53 m / 113.80 m x 14.40 m  x 5.10 m

Armament:
      2 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1905 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
      10 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1905 Model
     Breech loading guns in casemate mounts
     on side, all amidships
      4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1905 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 797 lbs / 362 kg
   Shells per gun, main battery: 120
   3 - 17.7" / 450 mm submerged torpedo tubes

Armour:

   - Armour deck: 1.57" / 40 mm, Conning tower: 3.94" / 100 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 13,045 ihp / 9,731 Kw = 21.75 kts
   Range 7,500nm at 10.00 kts
   Bunker at max displacement = 980 tons (90% coal)

Complement:
   261 - 340

Cost:
   £0.463 million / $1.850 million

Distribution of weights at normal displacement:
   Armament: 100 tons, 2.4 %
   Armour: 365 tons, 8.6 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 0 tons, 0.0 %
      - Armour Deck: 342 tons, 8.1 %
      - Conning Tower: 22 tons, 0.5 %
   Machinery: 1,825 tons, 43.3 %
   Hull, fittings & equipment: 1,186 tons, 28.1 %
   Fuel, ammunition & stores: 691 tons, 16.4 %
   Miscellaneous weights: 50 tons, 1.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,534 lbs / 696 Kg = 14.2 x 6.0 " / 152 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.37
   Metacentric height 2.8 ft / 0.9 m
   Roll period: 11.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.20
   Seaboat quality  (Average = 1.00): 1.16

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 7.90 : 1
   'Natural speed' for length: 19.32 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 87
   Bow angle (Positive = bow angles forward): 30.00 degrees
   Stern overhang: 6.56 ft / 2.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      9.84 ft / 3.00 m
      - Forecastle (20 %):   9.84 ft / 3.00 m
      - Mid (50 %):      9.84 ft / 3.00 m
      - Quarterdeck (7 %):   9.84 ft / 3.00 m
      - Stern:      9.84 ft / 3.00 m
      - Average freeboard:   9.84 ft / 3.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 169.4 %
      - Above water (accommodation/working, high = better): 84.4 %
   Waterplane Area: 11,752 Square feet or 1,092 Square metres
   Displacement factor (Displacement / loading): 85 %
   Structure weight / hull surface area: 69 lbs/sq ft or 337 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.00
      - Longitudinal: 1.19
      - Overall: 1.02
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform

Mirai, Japan 2nd Class Cruiser laid down 1912


Ships: Mirai, Kibou, Seigi.
Displacement:
   4,685 t light; 4,880 t standard; 5,437 t normal; 5,881 t full load

Dimensions: Length overall / water x beam x draught
   481.58 ft / 465.00 ft x 46.50 ft x 16.00 ft (normal load)
   146.79 m / 141.73 m x 14.17 m  x 4.88 m

Armament:
      4 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1912 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      4 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1912 Model
     Breech loading guns in deck mounts with hoists
     on side ends, evenly spread
      6 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1912 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships
   Weight of broadside 945 lbs / 429 kg
   Shells per gun, main battery: 150
   4 - 17.7" / 449.58 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.00" / 76 mm   331.00 ft / 100.89 m   8.50 ft / 2.59 m
   Ends:   1.50" / 38 mm   134.00 ft / 40.84 m   8.50 ft / 2.59 m
     Main Belt covers 110% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm   0.50" / 13 mm      1.00" / 25 mm
   2nd:   1.00" / 25 mm   0.50" / 13 mm      1.00" / 25 mm
   3rd:   1.00" / 25 mm   0.50" / 13 mm      1.00" / 25 mm

   - Armour deck: 1.00" / 25 mm, Conning tower: 4.00" / 102 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 36,531 shp / 27,252 Kw = 27.70 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 1,001 tons

Complement:
   316 - 411

Cost:
   £0.467 million / $1.868 million

Distribution of weights at normal displacement:
   Armament: 118 tons, 2.2%
   Armour: 753 tons, 13.9%
      - Belts: 411 tons, 7.6%
      - Torpedo bulkhead: 0 tons, 0.0%
      - Armament: 37 tons, 0.7%
      - Armour Deck: 279 tons, 5.1%
      - Conning Tower: 27 tons, 0.5%
   Machinery: 1,457 tons, 26.8%
   Hull, fittings & equipment: 2,087 tons, 38.4%
   Fuel, ammunition & stores: 752 tons, 13.8%
   Miscellaneous weights: 270 tons, 5.0%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,825 lbs / 2,642 Kg = 53.9 x 6.0 " / 152 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 2.1 ft / 0.6 m
   Roll period: 13.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.63
   Seaboat quality  (Average = 1.00): 1.37

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.550
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 21.56 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 51
   Bow angle (Positive = bow angles forward): 30.00 degrees
   Stern overhang: 2.00 ft / 0.61 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      25.25 ft / 7.70 m
      - Forecastle (15%):   17.50 ft / 5.33 m
      - Mid (50%):      17.50 ft / 5.33 m
      - Quarterdeck (15%):   17.50 ft / 5.33 m
      - Stern:      17.50 ft / 5.33 m
      - Average freeboard:   17.97 ft / 5.48 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 109.4%
      - Above water (accommodation/working, high = better): 144.8%
   Waterplane Area: 15,090 Square feet or 1,402 Square metres
   Displacement factor (Displacement / loading): 111%
   Structure weight / hull surface area: 79 lbs/sq ft or 387 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.85
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

100 tons - FC
25 tons - radio