Light Cruiser

[Logi]

Yu, RRC Fish Class laid down 1915 (Engine 1912)

Displacement:
   4,017 t light; 4,177 t standard; 4,535 t normal; 4,821 t full load

Dimensions: Length overall / water x beam x draught
   427.50 ft / 427.50 ft x 45.00 ft x 15.00 ft (normal load)
   130.30 m / 130.30 m x 13.72 m  x 4.57 m

Armament:
     2 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1915 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread
     4 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1915 Model
     Breech loading guns in deck mounts
     on side, evenly spread
     6 - 3.00" / 76.2 mm guns (4 mounts), 13.50lbs / 6.12kg shells, 1915 Model
     Breech loading guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 729 lbs / 331 kg
   Shells per gun, main battery: 150
   4 - 21.0" / 533.4 mm above water torpedoes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.00" / 76 mm   427.50 ft / 130.30 m   8.00 ft / 2.44 m
   Ends:   Unarmoured
     Main Belt covers 154 % of normal length

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

  - Armour deck: 1.00" / 25 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 4 shafts, 35,669 shp / 26,609 Kw = 28.00 kts
   Range 5,100nm at 10.00 kts
   Bunker at max displacement = 644 tons (100% coal)

Complement:
   276 - 359

Cost:
   £0.633 million / $2.534 million

Distribution of weights at normal displacement:
   Armament: 91 tons, 2.0 %
   Armour: 679 tons, 15.0 %
      - Belts: 380 tons, 8.4 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 51 tons, 1.1 %
      - Armour Deck: 248 tons, 5.5 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 1,559 tons, 34.4 %
   Hull, fittings & equipment: 1,533 tons, 33.8 %
   Fuel, ammunition & stores: 518 tons, 11.4 %
   Miscellaneous weights: 154 tons, 3.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,528 lbs / 1,600 Kg = 32.7 x 6.0 " / 152 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.29
   Metacentric height 2.4 ft / 0.7 m
   Roll period: 12.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.23
   Seaboat quality  (Average = 1.00): 1.22

Hull form characteristics:
   Hull has rise aft of midbreak
   Block coefficient: 0.550
   Length to Beam Ratio: 9.50 : 1
   'Natural speed' for length: 20.68 kts
   Power going to wave formation at top speed: 59 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   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:      22.00 ft / 6.71 m
      - Forecastle (20 %):   20.00 ft / 6.10 m
      - Mid (50 %):      13.00 ft / 3.96 m (18.00 ft / 5.49 m aft of break)
      - Quarterdeck (15 %):   13.00 ft / 3.96 m
      - Stern:      13.00 ft / 3.96 m
      - Average freeboard:   16.49 ft / 5.02 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 130.8 %
      - Above water (accommodation/working, high = better): 126.7 %
   Waterplane Area: 13,426 Square feet or 1,247 Square metres
   Displacement factor (Displacement / loading): 97 %
   Structure weight / hull surface area: 68 lbs/sq ft or 333 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.72
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Ships:
Yuliay 1915 (Fish Bait)
Yusuan 1915 (Fish Boat) Sunk

[Logi]

Improved Yu, RRC Fish Class laid down 1917 (Engine 1916)

Displacement:
   4,017 t light; 4,278 t standard; 4,662 t normal; 4,969 t full load

Dimensions: Length overall / water x beam x draught
   427.50 ft / 427.50 ft x 45.00 ft x 15.00 ft (normal load)
   130.30 m / 130.30 m x 13.72 m  x 4.57 m

Armament:
      6 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1917 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread, 4 raised mounts - superfiring
      6 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1917 Model
     Breech loading guns in deck mounts
     on side, evenly spread
      6 - 3.00" / 76.2 mm guns (4 mounts), 13.50lbs / 6.12kg shells, 1917 Model
     Breech loading guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 1,377 lbs / 625 kg
   Shells per gun, main battery: 200
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.00" / 76 mm   427.50 ft / 130.30 m   8.00 ft / 2.44 m
   Ends:   Unarmoured
     Main Belt covers 154 % of normal length

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

   - Armour deck: 1.00" / 25 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 34,978 shp / 26,093 Kw = 27.70 kts
   Range 6,000nm at 12.00 kts
   Bunker at max displacement = 692 tons

Complement:
   281 - 366

Cost:
   £0.849 million / $3.397 million

Distribution of weights at normal displacement:
   Armament: 172 tons, 3.7 %
   Armour: 725 tons, 15.5 %
      - Belts: 380 tons, 8.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 93 tons, 2.0 %
      - Armour Deck: 252 tons, 5.4 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 1,299 tons, 27.9 %
   Hull, fittings & equipment: 1,653 tons, 35.5 %
   Fuel, ammunition & stores: 645 tons, 13.8 %
   Miscellaneous weights: 167 tons, 3.6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,948 lbs / 1,791 Kg = 36.6 x 6.0 " / 152 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.25
   Metacentric height 2.3 ft / 0.7 m
   Roll period: 12.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.47
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has rise aft of midbreak
   Block coefficient: 0.565
   Length to Beam Ratio: 9.50 : 1
   'Natural speed' for length: 20.68 kts
   Power going to wave formation at top speed: 59 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   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:      23.00 ft / 7.01 m
      - Forecastle (20 %):   20.00 ft / 6.10 m
      - Mid (50 %):      13.00 ft / 3.96 m (18.00 ft / 5.49 m aft of break)
      - Quarterdeck (15 %):   13.00 ft / 3.96 m
      - Stern:      13.00 ft / 3.96 m
      - Average freeboard:   16.57 ft / 5.05 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 123.9 %
      - Above water (accommodation/working, high = better): 115.7 %
   Waterplane Area: 13,622 Square feet or 1,266 Square metres
   Displacement factor (Displacement / loading): 96 %
   Structure weight / hull surface area: 73 lbs/sq ft or 354 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.80
      - Overall: 1.00
   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

Ships:
Yuyou 1917 (Fish Swim)

[Logi]

CL20, RRC Light Cruiser laid down 1920 (Engine 1916)

Displacement:
  6,000 t light; 6,289 t standard; 6,868 t normal; 7,331 t full load

Dimensions: Length overall / water x beam x draught
  550.00 ft / 550.00 ft x 51.00 ft x 19.00 ft (normal load)
  167.64 m / 167.64 m x 15.54 m  x 5.79 m

Armament:
     12 - 6.00" / 152 mm guns (6x2 guns), 108.00lbs / 48.99kg shells, 1920 Model
    Breech loading guns in deck mounts with hoists
    on centreline ends, evenly spread, 4 raised mounts - superfiring
     4 - 2.95" / 75.0 mm guns (2x2 guns), 12.87lbs / 5.84kg shells, 1920 Model
    Anti-aircraft guns in deck mounts with hoists
    on side, evenly spread, all raised mounts
  Weight of broadside 1,347 lbs / 611 kg
  Shells per gun, main battery: 200
  9 - 21.0" / 533.4 mm above water torpedoes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
  Main:   4.00" / 102 mm   550.00 ft / 167.64 m   13.14 ft / 4.01 m
  Ends:   Unarmoured
    Main Belt covers 154 % of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
  Main:   4.00" / 102 mm   1.00" / 25 mm      3.00" / 76 mm
  2nd:   1.00" / 25 mm         -               -

  - Armour deck: 1.00" / 25 mm, Conning tower: 3.00" / 76 mm

Machinery:
  Oil fired boilers, steam turbines,
  Direct drive, 2 shafts, 39,386 shp / 29,382 Kw = 28.00 kts
  Range 7,000nm at 12.00 kts
  Bunker at max displacement = 1,043 tons

Complement:
  376 - 490

Cost:
  £1.316 million / $5.265 million

Distribution of weights at normal displacement:
  Armament: 168 tons, 2.5 %
  Armour: 1,531 tons, 22.3 %
     - Belts: 1,070 tons, 15.6 %
     - Torpedo bulkhead: 0 tons, 0.0 %
     - Armament: 107 tons, 1.6 %
     - Armour Deck: 331 tons, 4.8 %
     - Conning Tower: 23 tons, 0.3 %
  Machinery: 1,467 tons, 21.4 %
  Hull, fittings & equipment: 2,569 tons, 37.4 %
  Fuel, ammunition & stores: 868 tons, 12.6 %
  Miscellaneous weights: 264 tons, 3.8 %

Overall survivability and seakeeping ability:
  Survivability (Non-critical penetrating hits needed to sink ship):
    7,769 lbs / 3,524 Kg = 71.9 x 6.0 " / 152 mm shells or 1.4 torpedoes
  Stability (Unstable if below 1.00): 1.06
  Metacentric height 2.1 ft / 0.6 m
  Roll period: 15.0 seconds
  Steadiness   - As gun platform (Average = 50 %): 76 %
        - Recoil effect (Restricted arc if above 1.00): 0.66
  Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
  Hull has a flush deck
  Block coefficient: 0.451
  Length to Beam Ratio: 10.78 : 1
  'Natural speed' for length: 23.45 kts
  Power going to wave formation at top speed: 48 %
  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 (% = measuring location as a percentage of overall length):
     - Stem:      17.00 ft / 5.18 m
     - Forecastle (20 %):   15.00 ft / 4.57 m
     - Mid (50 %):      14.00 ft / 4.27 m
     - Quarterdeck (15 %):   14.00 ft / 4.27 m
     - Stern:      14.00 ft / 4.27 m
     - Average freeboard:   14.51 ft / 4.42 m
  Ship tends to be wet forward

Ship space, strength and comments:
  Space   - Hull below water (magazines/engines, low = better): 93.5 %
     - Above water (accommodation/working, high = better): 100.6 %
  Waterplane Area: 17,907 Square feet or 1,664 Square metres
  Displacement factor (Displacement / loading): 113 %
  Structure weight / hull surface area: 90 lbs/sq ft or 437 Kg/sq metre
  Hull strength (Relative):
     - Cross-sectional: 0.99
     - Longitudinal: 1.07
     - Overall: 1.00
  Hull space for machinery, storage, compartmentation is adequate
  Room for accommodation and workspaces is adequate
  Ship has slow, easy roll, a good, steady gun platform
  Good seaboat, rides out heavy weather easily

Main Belt sloped 20 degrees for a vertical height of 12'

Misc Weight (264t):
100t FC System
25t Radar
25t Long-Range Wireless
36t 21" Torpedoes
25t Crew Comfort
53t Reserve

Ships:
Chongqing 1920