Protected and Light Cruisers

[The Rock Doctor]

...in all their splendor.

[The Rock Doctor]

Lagan class cruiser

Lagan, C-7, laid down 1891, scrapped 1913
Oder, C-8, laid down 1891, scrapped 1913
Danube, C-9, laid down 1892, scrapped 1914
Daugava, C-10, laid down 1892, scrapped 1914
Vistula, C-11, laid down 1893, scrapped 1915
Neman, C-12, laid down 1893, scrapped 1915
Neris, C-13, laid down 1894, scrapped 1916
Gauja, C-14, laid down 1894, scrapped 1916

Enter ship name, Enter country Enter ship type laid down 1891

Displacement:
   3,457 t light; 3,582 t standard; 3,964 t normal; 4,269 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (396.98 ft / 393.70 ft) x 44.29 ft x (15.91 / 16.83 ft)
   (121.00 m / 120.00 m) x 13.50 m  x (4.85 / 5.13 m)

Armament:
      2 - 3.94" / 100.0 mm 40.0 cal guns - 29.24lbs / 13.26kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1891 Model
     2 x Single mounts on centreline ends, evenly spread
      8 - 3.94" / 100.0 mm 40.0 cal guns - 29.24lbs / 13.26kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1891 Model
     8 x Single mounts on sides, evenly spread
      8 - 1.97" / 50.0 mm 40.0 cal guns - 3.66lbs / 1.66kg shells, 250 per gun
     Quick firing guns in deck mounts, 1891 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      6 - 0.39" / 10.0 mm 40.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1891 Model
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      Weight of broadside 322 lbs / 146 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.57" / 40 mm   262.47 ft / 80.00 m   7.97 ft / 2.43 m
   Ends:   1.57" / 40 mm   131.20 ft / 39.99 m   7.97 ft / 2.43 m
   Upper:   1.57" / 40 mm   255.91 ft / 78.00 m   8.01 ft / 2.44 m
     Main Belt covers 103 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   1.18" / 30 mm      1.18" / 30 mm
   2nd:   1.18" / 30 mm   1.18" / 30 mm      1.18" / 30 mm
   3rd:   0.79" / 20 mm         -               -
   4th:   0.39" / 10 mm         -               -

   - Protected deck - multiple decks:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 3.15" / 80 mm, Aft 3.15" / 80 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 5,630 ihp / 4,200 Kw = 17.69 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 687 tons (100% coal)

Complement:
   249 - 324

Cost:
   £0.299 million / $1.197 million

Distribution of weights at normal displacement:
   Armament: 78 tons, 2.0 %
      - Guns: 78 tons, 2.0 %
   Armour: 851 tons, 21.5 %
      - Belts: 330 tons, 8.3 %
      - Armament: 92 tons, 2.3 %
      - Armour Deck: 395 tons, 10.0 %
      - Conning Towers: 34 tons, 0.9 %
   Machinery: 1,083 tons, 27.3 %
   Hull, fittings & equipment: 1,277 tons, 32.2 %
   Fuel, ammunition & stores: 507 tons, 12.8 %
   Miscellaneous weights: 169 tons, 4.3 %
      - On freeboard deck: 169 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,767 lbs / 2,162 Kg = 156.2 x 3.9 " / 100 mm shells or 1.1 torpedoes
   Stability (Unstable if below 1.00): 1.26
   Metacentric height 2.2 ft / 0.7 m
   Roll period: 12.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.16
   Seaboat quality  (Average = 1.00): 1.60

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.509
   Length to Beam Ratio: 8.89 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 37 %
   Trim (Max stability = 0, Max steadiness = 100): 44
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  18.04 ft / 5.50 m,  18.04 ft / 5.50 m
      - Forward deck:   20.00 %,  18.04 ft / 5.50 m,  18.04 ft / 5.50 m
      - Aft deck:   45.00 %,  10.17 ft / 3.10 m,  10.17 ft / 3.10 m
      - Quarter deck:   15.00 %,  10.17 ft / 3.10 m,  10.17 ft / 3.10 m
      - Average freeboard:      13.32 ft / 4.06 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 96.0 %
      - Above water (accommodation/working, high = better): 111.9 %
   Waterplane Area: 11,618 Square feet or 1,079 Square metres
   Displacement factor (Displacement / loading): 115 %
   Structure weight / hull surface area: 71 lbs/sq ft or 349 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.29
      - Overall: 1.01
   Adequate machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[The Rock Doctor]

Vitava class cruiser

Vitava, C-15, laid down 1895, scrapped 1921
Morava, C-16, laid down 1895, scrapped 1921
Torne, C-17, laid down 1896, scrapped 1922
Oder, C-18, laid down, 1896, scrapped 1922
Pregolya, C-19, laid down 1897, scrapped 1925
Main, C-20, laid down 1897, scrapped 1925
Weser, C-21, laid down 1898, scrapped 1926
Indal, C-22, laid down 1898, scrapped 1926

Enter ship name, Enter country Enter ship type laid down 1895

Displacement:
   3,483 t light; 3,609 t standard; 3,964 t normal; 4,248 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (396.98 ft / 393.70 ft) x 44.29 ft x (15.91 / 16.77 ft)
   (121.00 m / 120.00 m) x 13.50 m  x (4.85 / 5.11 m)

Armament:
      2 - 3.94" / 100.0 mm 40.0 cal guns - 29.24lbs / 13.26kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1895 Model
     2 x Single mounts on centreline ends, evenly spread
      8 - 3.94" / 100.0 mm 40.0 cal guns - 29.24lbs / 13.26kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1895 Model
     8 x Single mounts on sides, evenly spread
      8 - 1.97" / 50.0 mm 40.0 cal guns - 3.66lbs / 1.66kg shells, 250 per gun
     Quick firing guns in deck mounts, 1895 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      6 - 0.39" / 10.0 mm 40.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1895 Model
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      Weight of broadside 322 lbs / 146 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.57" / 40 mm   262.47 ft / 80.00 m   7.97 ft / 2.43 m
   Ends:   1.57" / 40 mm   131.20 ft / 39.99 m   7.97 ft / 2.43 m
   Upper:   1.57" / 40 mm   255.91 ft / 78.00 m   8.01 ft / 2.44 m
     Main Belt covers 103 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   1.18" / 30 mm      1.18" / 30 mm
   2nd:   1.18" / 30 mm   1.18" / 30 mm      1.18" / 30 mm
   3rd:   0.79" / 20 mm         -               -
   4th:   0.39" / 10 mm         -               -

   - Protected deck - multiple decks:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 3.15" / 80 mm, Aft 3.15" / 80 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 6,702 ihp / 5,000 Kw = 18.55 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 639 tons (100% coal)

Complement:
   249 - 324

Cost:
   £0.308 million / $1.231 million

Distribution of weights at normal displacement:
   Armament: 78 tons, 2.0 %
      - Guns: 78 tons, 2.0 %
   Armour: 851 tons, 21.5 %
      - Belts: 330 tons, 8.3 %
      - Armament: 92 tons, 2.3 %
      - Armour Deck: 395 tons, 10.0 %
      - Conning Towers: 34 tons, 0.9 %
   Machinery: 1,136 tons, 28.7 %
   Hull, fittings & equipment: 1,237 tons, 31.2 %
   Fuel, ammunition & stores: 481 tons, 12.1 %
   Miscellaneous weights: 182 tons, 4.6 %
      - On freeboard deck: 182 tons

Fittings:
-8 t:  1908 FC (fitted 1913)
-50 t:  Flag/leader facilities
-25 t:  L/R wireless
-40 t:  Fitted for but not necessarily with 40 mines
-8 t:  2x2 450mm torpedoes, no reloads
-51 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,554 lbs / 2,066 Kg = 149.3 x 3.9 " / 100 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.27
   Metacentric height 2.3 ft / 0.7 m
   Roll period: 12.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.16
   Seaboat quality  (Average = 1.00): 1.60

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.508
   Length to Beam Ratio: 8.89 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 39 %
   Trim (Max stability = 0, Max steadiness = 100): 44
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  18.04 ft / 5.50 m,  18.04 ft / 5.50 m
      - Forward deck:   20.00 %,  18.04 ft / 5.50 m,  18.04 ft / 5.50 m
      - Aft deck:   45.00 %,  10.17 ft / 3.10 m,  10.17 ft / 3.10 m
      - Quarter deck:   15.00 %,  10.17 ft / 3.10 m,  10.17 ft / 3.10 m
      - Average freeboard:      13.32 ft / 4.06 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 100.3 %
      - Above water (accommodation/working, high = better): 111.9 %
   Waterplane Area: 11,618 Square feet or 1,079 Square metres
   Displacement factor (Displacement / loading): 111 %
   Structure weight / hull surface area: 69 lbs/sq ft or 338 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.30
      - Overall: 1.02
   Adequate machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[The Rock Doctor]

Lippe Class Cruiser

Having gone in circles with ideas to refurbish the Union's middle-aged pre-dreadnoughts and armored cruisers, the Design Bureau stepped back and had a look at the Lippe class protected cruisers.  Six were built between 1905 and 1907.  With early turbines and a mixed bunkerage, they are not spectacular cruisers but they offer a reasonable foundation for improvement.

A refurbishment would:

-Strip out the 10x100mm battery and 8x50mm battery, replacing it with twin 130mm fore and aft, two single 130mm on each beam, and two 50 mm AA guns on the beam.  This is notionally less complicated than trying to stick a third twin on the centreline somewhere.

-New turbine machinery would allow for almost five knots of additional speed (26.2 kts) - enough for station-keeping around the early dreadnoughts.  The old machinery has be retained for possible re-use in something else.

-A switch to fuel oil bunkerage almost doubles operating range.

-And there'd be the usual fiddling with miscellaneous weight - bigger torpedoes, updated fire control etc.

This is expensive in cash ($3.32) but not bad for BP (1.793).  If the Union goes ahead, it'd do one ship per half-year for three years.

Lippe, C-23, laid down 1905, refurbished 1916
Havel, C-24, laid down 1905, refurbished 1916
Parnu, C-25, laid down 1906, refurbished 1917
Narva, C-26, laid down 1906, refurbished 1917
Luga, C-27, laid down 1907, refurbished 1918
Wkra, C-28, laid down 1907, refurbished 1918

As Refurbished:

Lippe Reloaded, laid down 1905 (Engine 1916)

Displacement:
   3,516 t light; 3,673 t standard; 3,964 t normal; 4,197 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (396.98 ft / 393.70 ft) x 44.29 ft x (15.91 / 16.61 ft)
   (121.00 m / 120.00 m) x 13.50 m  x (4.85 / 5.06 m)

Armament:
      8 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1905 Model
     2 x Twin mounts on centreline, evenly spread
     4 x Single mounts on sides, evenly spread
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 250 per gun
     Anti-air guns in deck mounts, 1916 Model
     2 x Single mounts on sides amidships
      2 raised mounts
      6 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1905 Model
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      Weight of broadside 549 lbs / 249 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   255.91 ft / 78.00 m   11.81 ft / 3.60 m
   Ends:   1.57" / 40 mm   137.76 ft / 41.99 m   11.81 ft / 3.60 m
   Upper:   1.57" / 40 mm   255.91 ft / 78.00 m   7.87 ft / 2.40 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   1.18" / 30 mm      1.18" / 30 mm
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.39" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 1.18" / 30 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 3.15" / 80 mm, Aft 3.15" / 80 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 25,470 shp / 19,000 Kw = 26.19 kts
   Range 7,500nm at 10.00 kts
   Bunker at max displacement = 524 tons

Complement:
   249 - 324

Cost:
   £0.308 million / $1.231 million

Distribution of weights at normal displacement:
   Armament: 138 tons, 3.5 %
      - Guns: 138 tons, 3.5 %
   Armour: 967 tons, 24.4 %
      - Belts: 620 tons, 15.6 %
      - Armament: 57 tons, 1.4 %
      - Armour Deck: 256 tons, 6.5 %
      - Conning Towers: 34 tons, 0.9 %
   Machinery: 949 tons, 23.9 %
   Hull, fittings & equipment: 1,280 tons, 32.3 %
   Fuel, ammunition & stores: 448 tons, 11.3 %
   Miscellaneous weights: 182 tons, 4.6 %
      - On freeboard deck: 182 tons

Fittings:
-28 t:  Redundant 1912 fire control
-50 t:  Flag/leader facilities
-25 t:  LR Wireless
-40 t:  Fitted for but not necessarily with 40 mines
-18 t:  2x3 530mm torpedoes, no reloads
-21 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,050 lbs / 2,291 Kg = 75.3 x 5.1 " / 130 mm shells or 1.1 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 1.9 ft / 0.6 m
   Roll period: 13.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 55 %
         - Recoil effect (Restricted arc if above 1.00): 0.32
   Seaboat quality  (Average = 1.00): 1.10

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.507
   Length to Beam Ratio: 8.89 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  23.62 ft / 7.20 m,  19.69 ft / 6.00 m
      - Forward deck:   20.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   45.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Quarter deck:   15.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Average freeboard:      15.28 ft / 4.66 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 91.2 %
      - Above water (accommodation/working, high = better): 126.5 %
   Waterplane Area: 11,618 Square feet or 1,079 Square metres
   Displacement factor (Displacement / loading): 112 %
   Structure weight / hull surface area: 70 lbs/sq ft or 341 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.68
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room


As Built:

Enter ship name, Enter country Enter ship type laid down 1905

Displacement:
   3,478 t light; 3,606 t standard; 3,964 t normal; 4,250 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (396.98 ft / 393.70 ft) x 44.29 ft x (15.91 / 16.77 ft)
   (121.00 m / 120.00 m) x 13.50 m  x (4.85 / 5.11 m)

Armament:
      2 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1905 Model
     2 x Single mounts on centreline ends, evenly spread
      8 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1905 Model
     8 x Single mounts on sides, evenly spread
      8 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 250 per gun
     Quick firing guns in deck mounts, 1905 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      6 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1905 Model
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      Weight of broadside 339 lbs / 154 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   255.91 ft / 78.00 m   11.81 ft / 3.60 m
   Ends:   1.57" / 40 mm   137.76 ft / 41.99 m   11.81 ft / 3.60 m
   Upper:   1.57" / 40 mm   255.91 ft / 78.00 m   7.87 ft / 2.40 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   1.18" / 30 mm      1.18" / 30 mm
   2nd:   1.18" / 30 mm   1.18" / 30 mm      1.18" / 30 mm
   3rd:   0.79" / 20 mm         -               -
   4th:   0.39" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 1.18" / 30 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 3.15" / 80 mm, Aft 3.15" / 80 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 12,064 shp / 9,000 Kw = 21.69 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 644 tons (90% coal)

Complement:
   249 - 324

Cost:
   £0.293 million / $1.171 million

Distribution of weights at normal displacement:
   Armament: 92 tons, 2.3 %
      - Guns: 92 tons, 2.3 %
   Armour: 1,003 tons, 25.3 %
      - Belts: 622 tons, 15.7 %
      - Armament: 92 tons, 2.3 %
      - Armour Deck: 256 tons, 6.5 %
      - Conning Towers: 34 tons, 0.9 %
   Machinery: 995 tons, 25.1 %
   Hull, fittings & equipment: 1,220 tons, 30.8 %
   Fuel, ammunition & stores: 485 tons, 12.2 %
   Miscellaneous weights: 167 tons, 4.2 %
      - On freeboard deck: 167 tons

Fittings:
-25 t:  LR Wireless
-50 t:  Command facilities (leader function)
-40 t:  Fitted for but not necessarily with 40 mines
-16 t:  4 x 18" torpedoes, one set of reloads
-36 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,086 lbs / 2,307 Kg = 166.7 x 3.9 " / 100 mm shells or 1.1 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 1.8 ft / 0.6 m
   Roll period: 13.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 93 %
         - Recoil effect (Restricted arc if above 1.00): 0.27
   Seaboat quality  (Average = 1.00): 1.70

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.509
   Length to Beam Ratio: 8.89 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 47 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  23.62 ft / 7.20 m,  19.69 ft / 6.00 m
      - Forward deck:   20.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   45.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Quarter deck:   15.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Average freeboard:      15.28 ft / 4.66 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 90.0 %
      - Above water (accommodation/working, high = better): 126.5 %
   Waterplane Area: 11,618 Square feet or 1,079 Square metres
   Displacement factor (Displacement / loading): 114 %
   Structure weight / hull surface area: 66 lbs/sq ft or 321 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.58
      - 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

[The Rock Doctor]

Bug Class Cruiser

The three survivors received a refurbishment, including new machinery, in 1924 but I've lost that sim and will have to re-do it.

Bug, C-29, laid down 1908, lost 1913
Neva, C-30, laid down 1909
Fulda, C-31, laid down 1910
Rednitz, C-32, laid down 1910

Enter ship name, Enter country Enter ship type laid down 1908

Displacement:
   3,535 t light; 3,663 t standard; 3,964 t normal; 4,205 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (396.98 ft / 393.70 ft) x 44.29 ft x (15.91 / 16.64 ft)
   (121.00 m / 120.00 m) x 13.50 m  x (4.85 / 5.07 m)

Armament:
      2 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1908 Model
     2 x Single mounts on centreline ends, evenly spread
      8 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1908 Model
     8 x Single mounts on sides, evenly spread
      8 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 250 per gun
     Quick firing guns in deck mounts, 1908 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      6 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1908 Model
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      Weight of broadside 339 lbs / 154 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   255.91 ft / 78.00 m   11.81 ft / 3.60 m
   Ends:   1.57" / 40 mm   137.76 ft / 41.99 m   11.81 ft / 3.60 m
   Upper:   1.57" / 40 mm   255.91 ft / 78.00 m   7.87 ft / 2.40 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   1.18" / 30 mm      1.18" / 30 mm
   2nd:   1.18" / 30 mm   1.18" / 30 mm      1.18" / 30 mm
   3rd:   0.79" / 20 mm         -               -
   4th:   0.39" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 1.18" / 30 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 3.15" / 80 mm, Aft 3.15" / 80 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 18,766 shp / 14,000 Kw = 24.28 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 542 tons (90% coal)

Complement:
   249 - 324

Cost:
   £0.300 million / $1.199 million

Distribution of weights at normal displacement:
   Armament: 92 tons, 2.3 %
      - Guns: 92 tons, 2.3 %
   Armour: 1,003 tons, 25.3 %
      - Belts: 622 tons, 15.7 %
      - Armament: 92 tons, 2.3 %
      - Armour Deck: 256 tons, 6.5 %
      - Conning Towers: 34 tons, 0.9 %
   Machinery: 1,032 tons, 26.0 %
   Hull, fittings & equipment: 1,229 tons, 31.0 %
   Fuel, ammunition & stores: 429 tons, 10.8 %
   Miscellaneous weights: 178 tons, 4.5 %
      - On freeboard deck: 178 tons

Fittings:
-20 t:  1908 FC (Redundant, refitted 1913)
-25 t:  LR Wireless
-50 t:  Command Facilities (Leader function)
-16 t:  2x2 18" torpedos, one set of reloads
-40 t:  Fitted for but not necessarily with 40 mines
-25 t:  Nightfighting doodads, refitted 1913
-2 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,920 lbs / 2,232 Kg = 161.3 x 3.9 " / 100 mm shells or 1.1 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 1.8 ft / 0.6 m
   Roll period: 13.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.22
   Seaboat quality  (Average = 1.00): 1.27

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.507
   Length to Beam Ratio: 8.89 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Forward deck:   20.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   45.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Quarter deck:   15.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Average freeboard:      14.96 ft / 4.56 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 93.0 %
      - Above water (accommodation/working, high = better): 126.5 %
   Waterplane Area: 11,618 Square feet or 1,079 Square metres
   Displacement factor (Displacement / loading): 112 %
   Structure weight / hull surface area: 67 lbs/sq ft or 327 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.52
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[The Rock Doctor]

Patowmeck Class Cruiser

The Patowmeck class cruisers are incremental improvements on the Bug class, and introduce 13cm guns as the main battery for the first time.  A large 10cm secondary is retained for now, though there's a strong push on for the next class to just stick with the 13cm piece.

The class was subjected to reconstruction in 1925/6, resulting in a uniform main battery and other improvements.

Patowmeck, CL-33, laid down 1911
Shenandoah, CL-34, laid down 1911
Atrato, CL-35, laid down 1912
Srebra, CL-36, laid down 1912

AS RECONSTRUCTED, 1925/6

Patowmeck reconstruction, laid down 1911 (reconstructed 1925/6)

Displacement:
   4,072 t light; 4,261 t standard; 4,689 t normal; 5,031 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (447.08 ft / 442.91 ft) x 44.29 ft x (16.73 / 17.65 ft)
   (136.27 m / 135.00 m) x 13.50 m  x (5.10 / 5.38 m)

Armament:
      8 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1911 Model
     1 x 2-gun mount on centreline, forward deck centre
     3 x 2-gun mounts on centreline, aft evenly spread
      1 raised mount
      4 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Anti-air guns in deck mounts, 1911 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      12 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1911 Model
     6 x Twin mounts on sides, evenly spread
      6 raised mounts
      Weight of broadside 665 lbs / 302 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   298.56 ft / 91.00 m   11.81 ft / 3.60 m
   Ends:   1.57" / 40 mm   144.36 ft / 44.00 m   11.81 ft / 3.60 m
   Upper:   1.57" / 40 mm   287.89 ft / 87.75 m   8.01 ft / 2.44 m
     Main Belt covers 104 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   1.18" / 30 mm      1.97" / 50 mm
   2nd:   0.79" / 20 mm   0.79" / 20 mm            -
   4th:   0.59" / 15 mm   0.12" / 3 mm            -

   - Armoured deck - multiple decks: 1.18" / 30 mm For and Aft decks
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 3.15" / 80 mm,  Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 30,831 shp / 23,000 Kw = 27.19 kts
   Range 8,000nm at 10.00 kts
   Bunker at max displacement = 770 tons

Complement:
   283 - 368

Cost:
   £0.376 million / $1.503 million

Distribution of weights at normal displacement:
   Armament: 169 tons, 3.6 %
   Armour: 1,082 tons, 23.1 %
      - Belts: 699 tons, 14.9 %
      - Armament: 75 tons, 1.6 %
      - Armour Deck: 288 tons, 6.1 %
      - Conning Tower: 19 tons, 0.4 %
   Machinery: 1,251 tons, 26.7 %
   Hull, fittings & equipment: 1,389 tons, 29.6 %
   Fuel, ammunition & stores: 617 tons, 13.2 %
   Miscellaneous weights: 181 tons, 3.9 %
      - On freeboard deck: 61 tons
      - Above deck: 120 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,831 lbs / 2,191 Kg = 72.1 x 5.1 " / 130 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 1.8 ft / 0.5 m
   Roll period: 14.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 61 %
         - Recoil effect (Restricted arc if above 1.00): 0.44
   Seaboat quality  (Average = 1.00): 1.19

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.509
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 21.05 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 51
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: -3.28 ft / -1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  23.62 ft / 7.20 m,  19.69 ft / 6.00 m
      - Forward deck:   25.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   40.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Quarter deck:   15.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Average freeboard:      15.67 ft / 4.78 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 99.5 %
      - Above water (accommodation/working, high = better): 130.5 %
   Waterplane Area: 13,070 Square feet or 1,214 Square metres
   Displacement factor (Displacement / loading): 109 %
   Structure weight / hull surface area: 66 lbs/sq ft or 324 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.85
      - Longitudinal: 1.37
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent

AS BUILT, 1911

Enter ship name, Enter country Enter ship type laid down 1911

Displacement:
   4,168 t light; 4,326 t standard; 4,689 t normal; 4,980 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (446.38 ft / 442.91 ft) x 44.29 ft x (16.73 / 17.51 ft)
   (136.06 m / 135.00 m) x 13.50 m  x (5.10 / 5.34 m)

Armament:
      2 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Breech loading guns in deck mounts, 1911 Model
     2 x Single mounts on centreline, evenly spread
      10 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Quick firing guns in deck mounts, 1911 Model
     10 x Single mounts on sides, evenly spread
      4 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 250 per gun
     Quick firing guns in deck mounts, 1911 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 5,000 per gun
     Machine guns in deck mounts, 1911 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 458 lbs / 208 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   298.56 ft / 91.00 m   11.81 ft / 3.60 m
   Ends:   1.57" / 40 mm   144.36 ft / 44.00 m   11.81 ft / 3.60 m
   Upper:   1.57" / 40 mm   287.89 ft / 87.75 m   8.01 ft / 2.44 m
     Main Belt covers 104 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.39" / 10 mm            -
   2nd:   0.79" / 20 mm   0.39" / 10 mm            -
   3rd:   0.39" / 10 mm         -               -
   4th:   0.39" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 1.18" / 30 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 3.15" / 80 mm, Aft 3.15" / 80 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 30,831 shp / 23,000 Kw = 27.19 kts
   Range 5,000nm at 10.00 kts
   Bunker at max displacement = 655 tons (90% coal)

Complement:
   283 - 368

Cost:
   £0.359 million / $1.436 million

Distribution of weights at normal displacement:
   Armament: 79 tons, 1.7 %
      - Guns: 79 tons, 1.7 %
   Armour: 1,067 tons, 22.8 %
      - Belts: 701 tons, 15.0 %
      - Armament: 40 tons, 0.8 %
      - Armour Deck: 288 tons, 6.1 %
      - Conning Towers: 38 tons, 0.8 %
   Machinery: 1,363 tons, 29.1 %
   Hull, fittings & equipment: 1,434 tons, 30.6 %
   Fuel, ammunition & stores: 521 tons, 11.1 %
   Miscellaneous weights: 225 tons, 4.8 %
      - Hull above water: 100 tons
      - On freeboard deck: 100 tons
      - Above deck: 25 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,144 lbs / 2,333 Kg = 76.7 x 5.1 " / 130 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 1.8 ft / 0.6 m
   Roll period: 13.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.16
   Seaboat quality  (Average = 1.00): 1.19

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.507
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 21.05 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: -3.28 ft / -1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Forward deck:   25.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   40.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Quarter deck:   15.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Average freeboard:      15.35 ft / 4.68 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 102.4 %
      - Above water (accommodation/working, high = better): 130.5 %
   Waterplane Area: 13,070 Square feet or 1,214 Square metres
   Displacement factor (Displacement / loading): 111 %
   Structure weight / hull surface area: 67 lbs/sq ft or 328 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.38
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

[The Rock Doctor]

Werra Class Cruiser (Colonial)


Werra, CG-1, laid down 1911, scrapped 1932
Nacottawtanke, CG-2, laid down 1911, scrapped 1932
Toppehannock, CG-3, laid down 1912, scrapped 1933
Pocomoke, CG-4, laid down 1912, lost 1929

A colonial cruiser/gunboat designed for operations in the South Atlantic.  It has reasonably long legs for Union ships, good seakeeping, and uses reciprocating engines for ease of maintenance.  This comes at a cost of mediocre top speed, but is sufficient to deal with non-major power ships likely to be encountered in the area. 

Miscellaneous weight is provided for long-range radio, a platoon of troops and some other goodies.  I'll break that down when my brain isn't dosed with cold medication.

Enter ship name, Enter country Enter ship type laid down 1911

Displacement:
   2,203 t light; 2,290 t standard; 2,550 t normal; 2,758 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (299.44 ft / 295.28 ft) x 49.21 ft x (11.81 / 12.55 ft)
   (91.27 m / 90.00 m) x 15.00 m  x (3.60 / 3.83 m)

Armament:
      2 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Breech loading guns in deck mounts, 1911 Model
     2 x Single mounts on centreline, evenly spread
      4 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Quick firing guns in deck mounts, 1911 Model
     4 x Single mounts on sides, evenly spread
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 5,000 per gun
     Machine guns in deck mounts, 1911 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 258 lbs / 117 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.97" / 50 mm   191.93 ft / 58.50 m   8.01 ft / 2.44 m
   Ends:   0.98" / 25 mm   103.31 ft / 31.49 m   11.81 ft / 3.60 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.39" / 10 mm            -
   2nd:   0.79" / 20 mm   0.39" / 10 mm            -
   3rd:   0.39" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.39" / 10 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 1.97" / 50 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 8,043 ihp / 6,000 Kw = 20.08 kts
   Range 5,000nm at 10.00 kts
   Bunker at max displacement = 468 tons (100% coal)

Complement:
   179 - 233

Cost:
   £0.164 million / $0.657 million

Distribution of weights at normal displacement:
   Armament: 43 tons, 1.7 %
      - Guns: 43 tons, 1.7 %
   Armour: 376 tons, 14.8 %
      - Belts: 177 tons, 6.9 %
      - Armament: 20 tons, 0.8 %
      - Armour Deck: 171 tons, 6.7 %
      - Conning Tower: 8 tons, 0.3 %
   Machinery: 534 tons, 21.0 %
   Hull, fittings & equipment: 984 tons, 38.6 %
   Fuel, ammunition & stores: 347 tons, 13.6 %
   Miscellaneous weights: 265 tons, 10.4 %
      - Hull below water: 50 tons
      - Hull above water: 115 tons
      - On freeboard deck: 75 tons
      - Above deck: 25 tons

Fittings:
-50 t:  Cargo/extra stores (BW)
-80 t:  Accommodation for 40 (marine platoon + landing craft crew) (AW)
-35 t:  Crew amenities, additional medical facilities (AW)
-40 t:  Two landing craft and davits (FD)
-5 t:  Nightfighting doodads (FD)
-30 t:  Weight reserve (FD)
-25 t:  L/R wireless

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6,036 lbs / 2,738 Kg = 90.0 x 5.1 " / 130 mm shells or 1.3 torpedoes
   Stability (Unstable if below 1.00): 1.47
   Metacentric height 3.4 ft / 1.0 m
   Roll period: 11.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.08
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.520 / 0.529
   Length to Beam Ratio: 6.00 : 1
   'Natural speed' for length: 17.18 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 35
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: -3.28 ft / -1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  23.62 ft / 7.20 m,  19.69 ft / 6.00 m
      - Forward deck:   30.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   35.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Quarter deck:   15.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Average freeboard:      20.00 ft / 6.10 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 81.4 %
      - Above water (accommodation/working, high = better): 206.6 %
   Waterplane Area: 9,861 Square feet or 916 Square metres
   Displacement factor (Displacement / loading): 139 %
   Structure weight / hull surface area: 60 lbs/sq ft or 293 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.84
      - Longitudinal: 4.81
      - Overall: 1.00
   Excellent 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

[The Rock Doctor]

Orimiri Class Cruiser

New light cruiser for 1913.  Bigger guns, more speed and greater range mean a larger hull than the preceding classes.

Consideration was given to an A/Bs layout forward, but the side-by-side disposition was retained after some debate.  Aft, however, it is Xs/Y.

There was a refit in the late 1920s, not precisely sure when.

Orimiri, CL-37, laid down 1913
Benue, CL-38, laid down 1913

AS REFITTED, LATE 1920S

Enter ship name, Enter country Enter ship type laid down 1913

Displacement:
   4,623 t light; 4,858 t standard; 5,391 t normal; 5,817 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (463.25 ft / 459.32 ft) x 45.93 ft x (19.03 / 20.12 ft)
   (141.20 m / 140.00 m) x 14.00 m  x (5.80 / 6.13 m)

Armament:
      10 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1913 Model
     2 x Single mounts on centreline ends, evenly spread
      1 raised mount aft - superfiring
     8 x Single mounts on sides, forward evenly spread
      2 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 400 per gun
     Anti-air guns in deck mounts, 1913 Model
     2 x Single mounts on sides, aft deck centre
      8 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 1,000 per gun
     Anti-air guns in deck mounts, 1913 Model
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
      8 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 5,000 per gun
     Breech loading guns in deck mounts, 1913 Model
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 769 lbs / 349 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.54" / 90 mm   328.08 ft / 100.00 m   14.44 ft / 4.40 m
   Ends:   0.98" / 25 mm   131.20 ft / 39.99 m   8.14 ft / 2.48 m
     Main Belt covers 110 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   0.39" / 10 mm      3.94" / 100 mm
   2nd:   0.79" / 20 mm   0.59" / 15 mm            -
   3rd:   0.79" / 20 mm   0.59" / 15 mm            -
   4th:   0.59" / 15 mm         -               -

   - Armoured deck - multiple decks: 1.18" / 30 mm For and Aft decks
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 37,533 shp / 28,000 Kw = 28.13 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 959 tons

Complement:
   313 - 408

Cost:
   £0.477 million / $1.907 million

Distribution of weights at normal displacement:
   Armament: 200 tons, 3.7 %
   Armour: 1,086 tons, 20.1 %
      - Belts: 714 tons, 13.2 %
      - Armament: 71 tons, 1.3 %
      - Armour Deck: 301 tons, 5.6 %
   Machinery: 1,471 tons, 27.3 %
   Hull, fittings & equipment: 1,620 tons, 30.0 %
   Fuel, ammunition & stores: 768 tons, 14.2 %
   Miscellaneous weights: 247 tons, 4.6 %
      - Hull above water: 63 tons
      - On freeboard deck: 64 tons
      - Above deck: 120 tons

Fittings:
-38 t:  1905 FC (Redundant)
-25 t:  LR Wireless
-25 t:  Night Fighting doodads
-50 t:  Command Facilities (Leader function)
-16 t:  2x2 18" torpedoes, one set of reloads
-40 t:  Fitted for but not necessarily with 40 mines
-53 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,353 lbs / 2,428 Kg = 79.9 x 5.1 " / 130 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.07
   Metacentric height 1.8 ft / 0.5 m
   Roll period: 14.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 69 %
         - Recoil effect (Restricted arc if above 1.00): 0.47
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.470 / 0.480
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 21.43 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: -3.28 ft / -1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  22.31 ft / 6.80 m,  18.37 ft / 5.60 m
      - Forward deck:   45.00 %,  18.37 ft / 5.60 m,  18.37 ft / 5.60 m
      - Aft deck:   20.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Quarter deck:   15.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Average freeboard:      15.93 ft / 4.86 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 103.4 %
      - Above water (accommodation/working, high = better): 132.8 %
   Waterplane Area: 13,686 Square feet or 1,271 Square metres
   Displacement factor (Displacement / loading): 109 %
   Structure weight / hull surface area: 72 lbs/sq ft or 354 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 1.53
      - Overall: 0.95
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent

AS BUILT

Enter ship name, Enter country Enter ship type laid down 1913

Displacement:
   4,655 t light; 4,858 t standard; 5,391 t normal; 5,817 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (463.25 ft / 459.32 ft) x 45.93 ft x (19.03 / 20.12 ft)
   (141.20 m / 140.00 m) x 14.00 m  x (5.80 / 6.13 m)

Armament:
      10 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1913 Model
     8 x Single mounts on sides, forward evenly spread
     2 x Single mounts on centreline, aft evenly spread
      1 raised mount aft
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 150 per gun
     Anti-air guns in deck mounts, 1913 Model
     2 x Single mounts on sides, aft deck centre
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1913 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 684 lbs / 310 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.54" / 90 mm   328.08 ft / 100.00 m   14.44 ft / 4.40 m
   Ends:   0.98" / 25 mm   131.23 ft / 40.00 m   8.14 ft / 2.48 m
     Main Belt covers 110 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   0.39" / 10 mm      3.94" / 100 mm
   3rd:   0.20" / 5 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 1.18" / 30 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 37,533 shp / 28,000 Kw = 28.13 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 959 tons

Complement:
   313 - 408

Cost:
   £0.473 million / $1.892 million

Distribution of weights at normal displacement:
   Armament: 184 tons, 3.4 %
      - Guns: 184 tons, 3.4 %
   Armour: 1,058 tons, 19.6 %
      - Belts: 714 tons, 13.2 %
      - Armament: 43 tons, 0.8 %
      - Armour Deck: 301 tons, 5.6 %
   Machinery: 1,471 tons, 27.3 %
   Hull, fittings & equipment: 1,696 tons, 31.5 %
   Fuel, ammunition & stores: 736 tons, 13.6 %
   Miscellaneous weights: 247 tons, 4.6 %
      - Hull above water: 207 tons
      - Above deck: 40 tons

Fittings:
-38 t:  1905 FC (Redundant)
-25 t:  LR Wireless
-25 t:  Night Fighting doodads
-50 t:  Command Facilities (Leader function)
-16 t:  2x2 18" torpedoes, one set of reloads
-40 t:  Fitted for but not necessarily with 40 mines
-53 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,518 lbs / 2,503 Kg = 82.3 x 5.1 " / 130 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 1.9 ft / 0.6 m
   Roll period: 14.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.44
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.470 / 0.480
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 21.43 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: -3.28 ft / -1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  22.31 ft / 6.80 m,  18.37 ft / 5.60 m
      - Forward deck:   45.00 %,  18.37 ft / 5.60 m,  18.37 ft / 5.60 m
      - Aft deck:   20.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Quarter deck:   15.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Average freeboard:      15.93 ft / 4.86 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 104.9 %
      - Above water (accommodation/working, high = better): 132.8 %
   Waterplane Area: 13,686 Square feet or 1,271 Square metres
   Displacement factor (Displacement / loading): 111 %
   Structure weight / hull surface area: 75 lbs/sq ft or 367 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.61
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[The Rock Doctor]

Danube Class Training Cruiser

A cadet training cruiser based on the 1913 Orimiri class hull.  Major changes include elimination of the end belt, three fewer 13cm guns, and the loss of a knot of speed.  In return, the main deck level extends further aft to provide additional space for cadet quarters and instruction space.  The aft gun is superfiring in order to provide a fair bit of quarterdeck space for exercise, sports, and such.

In wartime, the ship would take on a standard cruiser role, for which it is still reasonably well equipped.

Danube, CL-39, laid down 1914

Enter ship name, Enter country Enter ship type laid down 1914

Displacement:
   4,704 t light; 4,879 t standard; 5,391 t normal; 5,800 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (463.42 ft / 459.32 ft) x 45.93 ft x (19.03 / 20.08 ft)
   (141.25 m / 140.00 m) x 14.00 m  x (5.80 / 6.12 m)

Armament:
      7 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1914 Model
     4 x Single mounts on sides, forward evenly spread
     3 x Single mounts on centreline ends, majority forward
      2 raised mounts - superfiring
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 150 per gun
     Anti-air guns in deck mounts, 1914 Model
     2 x Single mounts on sides, aft deck centre
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1914 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 481 lbs / 218 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.54" / 90 mm   298.56 ft / 91.00 m   14.44 ft / 4.40 m
   Ends:   Unarmoured
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   0.39" / 10 mm      3.94" / 100 mm
   3rd:   0.20" / 5 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 1.18" / 30 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 32,172 shp / 24,000 Kw = 27.07 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 921 tons

Complement:
   313 - 408

Cost:
   £0.488 million / $1.953 million

Distribution of weights at normal displacement:
   Armament: 129 tons, 2.4 %
      - Guns: 129 tons, 2.4 %
   Armour: 958 tons, 17.8 %
      - Belts: 625 tons, 11.6 %
      - Armament: 31 tons, 0.6 %
      - Armour Deck: 301 tons, 5.6 %
   Machinery: 1,239 tons, 23.0 %
   Hull, fittings & equipment: 1,780 tons, 33.0 %
   Fuel, ammunition & stores: 687 tons, 12.7 %
   Miscellaneous weights: 598 tons, 11.1 %
      - Hull above water: 250 tons
      - On freeboard deck: 298 tons
      - Above deck: 50 tons
Fittings:
-13 t:  1908 Fire Control
-25 t LR Wireless
-25 t:  Night fighting doodads
-16 t:  2x2 18" tt, one set of reloads
-450 t:  Accommodation and classroom space for 125 cadets
-69 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,324 lbs / 3,322 Kg = 109.3 x 5.1 " / 130 mm shells or 1.3 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 1.8 ft / 0.5 m
   Roll period: 14.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.39
   Seaboat quality  (Average = 1.00): 1.53

Hull form characteristics:
   Hull has low quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.470 / 0.479
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 21.43 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 46
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: -3.28 ft / -1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  23.29 ft / 7.10 m,  18.37 ft / 5.60 m
      - Forward deck:   45.00 %,  18.37 ft / 5.60 m,  18.37 ft / 5.60 m
      - Aft deck:   15.00 %,  18.37 ft / 5.60 m,  18.37 ft / 5.60 m
      - Quarter deck:   20.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Average freeboard:      17.19 ft / 5.24 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 88.6 %
      - Above water (accommodation/working, high = better): 153.0 %
   Waterplane Area: 13,686 Square feet or 1,271 Square metres
   Displacement factor (Displacement / loading): 121 %
   Structure weight / hull surface area: 74 lbs/sq ft or 361 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 1.97
      - 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

[The Rock Doctor]

Kopparberg Class Protected Cruiser-Minelayer

This is a class of fast minelaying cruisers for dedicated offensive minelaying functions.  In theory, it means there's less need for a bunch of non-dedicated cruisers and torpedo-boats to risk themselves doing the same job.

Unlike most Union cruisers, these are not named for rivers, but for mines.  Go figure.

Kopparberg, CL-40, laid down 1915
Silbergrundle, CL-41, laid down 1915

AS REFITTED 1931

Kopparberg class minelayer laid down 1915, refit 1931

Displacement:
   2,971 t light; 3,127 t standard; 3,445 t normal; 3,700 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (426.22 ft / 416.01 ft) x 39.37 ft x (16.73 / 17.59 ft)
   (129.91 m / 126.80 m) x 12.00 m  x (5.10 / 5.36 m)

Armament:
      5 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 300 per gun
     Breech loading guns in deck and hoist mounts, 1915 Model
     3 x Single mounts on centreline ends, majority aft
      1 raised mount aft - superfiring
     2 x Single mounts on sides, aft deck centre
      8 - 1.97" / 50.0 mm 60.0 cal guns - 4.18lbs / 1.89kg shells, 1,500 per gun
     Anti-air guns in deck mounts, 1915 Model
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
      8 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 5,000 per gun
     Machine guns in deck mounts, 1915 Model
     4 x Twin mounts on sides, evenly spread
      4 double raised mounts
      Weight of broadside 372 lbs / 169 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   2nd:   0.59" / 15 mm         -               -
   3rd:   0.59" / 15 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 37,533 shp / 28,000 Kw = 29.97 kts
   Range 8,400nm at 10.00 kts
   Bunker at max displacement = 572 tons

Complement:
   224 - 292

Cost:
   £0.491 million / $1.963 million

Distribution of weights at normal displacement:
   Armament: 100 tons, 2.9%
      - Guns: 100 tons, 2.9%
   Armour: 39 tons, 1.1%
      - Armament: 39 tons, 1.1%
   Machinery: 1,417 tons, 41.1%
   Hull, fittings & equipment: 1,147 tons, 33.3%
   Fuel, ammunition & stores: 474 tons, 13.8%
   Miscellaneous weights: 268 tons, 7.8%
      - On freeboard deck: 208 tons
      - Above deck: 60 tons

-10 t:  1924 Fire control (AD)
-25 t:  L/R wireless (AD)
-25 t:  Nightfighting doodads (AD)
-12 t:  2x2 530mm torpedoes, no reloads (FD)
-36 t:  Weight reserve (FD)
-160 t:  Mines (FD)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,885 lbs / 855 Kg = 28.1 x 5.1 " / 130 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.17
   Metacentric height 1.6 ft / 0.5 m
   Roll period: 12.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0.37
   Seaboat quality  (Average = 1.00): 1.19

Hull form characteristics:
   Hull has low quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.440 / 0.449
   Length to Beam Ratio: 10.57 : 1
   'Natural speed' for length: 20.40 kts
   Power going to wave formation at top speed: 58 %
   Trim (Max stability = 0, Max steadiness = 100): 43
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 6.56 ft / 2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00%,  20.67 ft / 6.30 m,  15.75 ft / 4.80 m
      - Forward deck:   30.00%,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Aft deck:   40.00%,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Quarter deck:   10.00%,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Average freeboard:      15.35 ft / 4.68 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 144.3%
      - Above water (accommodation/working, high = better): 138.8%
   Waterplane Area: 10,364 Square feet or 963 Square metres
   Displacement factor (Displacement / loading): 99%
   Structure weight / hull surface area: 61 lbs/sq ft or 297 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.82
      - Longitudinal: 1.92
      - Overall: 0.90
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

AS BUILT

Enter ship name, Enter country Enter ship type laid down 1915

Displacement:
   3,000 t light; 3,127 t standard; 3,445 t normal; 3,700 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (426.22 ft / 416.01 ft) x 39.37 ft x (16.73 / 17.59 ft)
   (129.91 m / 126.80 m) x 12.00 m  x (5.10 / 5.36 m)

Armament:
      5 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 300 per gun
     Breech loading guns in deck and hoist mounts, 1915 Model
     3 x Single mounts on centreline ends, majority aft
      1 raised mount aft - superfiring
     2 x Single mounts on sides, aft deck centre
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 200 per gun
     Anti-air guns in deck mounts, 1915 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1915 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 346 lbs / 157 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   2nd:   0.79" / 20 mm   0.39" / 10 mm            -
   3rd:   0.39" / 10 mm   0.39" / 10 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 37,533 shp / 28,000 Kw = 29.97 kts
   Range 8,400nm at 10.00 kts
   Bunker at max displacement = 572 tons

Complement:
   224 - 292

Cost:
   £0.488 million / $1.953 million

Distribution of weights at normal displacement:
   Armament: 93 tons, 2.7 %
      - Guns: 93 tons, 2.7 %
   Armour: 77 tons, 2.2 %
      - Armament: 77 tons, 2.2 %
   Machinery: 1,415 tons, 41.1 %
   Hull, fittings & equipment: 1,148 tons, 33.3 %
   Fuel, ammunition & stores: 445 tons, 12.9 %
   Miscellaneous weights: 268 tons, 7.8 %
      - On freeboard deck: 208 tons
      - Above deck: 60 tons

Fittings:
-10 t:  1908 Fire Control
-25 t:  L/R Wireless
-25 t:  Night-fighting doodads
-12 t:  2x2 530mm torpedoes, no reloads
-36 t:  Weight reserve
-160 t:  Mines

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,912 lbs / 867 Kg = 28.5 x 5.1 " / 130 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 1.6 ft / 0.5 m
   Roll period: 13.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.32
   Seaboat quality  (Average = 1.00): 1.17

Hull form characteristics:
   Hull has low quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.440 / 0.449
   Length to Beam Ratio: 10.57 : 1
   'Natural speed' for length: 20.40 kts
   Power going to wave formation at top speed: 58 %
   Trim (Max stability = 0, Max steadiness = 100): 43
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 6.56 ft / 2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  20.67 ft / 6.30 m,  15.75 ft / 4.80 m
      - Forward deck:   30.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Aft deck:   40.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Quarter deck:   10.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Average freeboard:      15.35 ft / 4.68 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 142.7 %
      - Above water (accommodation/working, high = better): 138.8 %
   Waterplane Area: 10,364 Square feet or 963 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 61 lbs/sq ft or 296 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.82
      - Longitudinal: 1.88
      - Overall: 0.90
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[The Rock Doctor]

Magdala Class

The Union's 1916 protected cruiser type sees the introduction of twin 130mm mountings and 1912 fire control systems.

Consideration was given toward a ship with five twin mountings, leading to the question of how best to situate that fifth mount.  Super-er-firing forward or aft for maximum axial firepower, at the expense of stability?  In a C or W position to enhance broadsides?  The Union settled on two single, superfiring mounts amidships instead; these should have good fore and aft firing arcs, and one can add to each broadside.  Nine-gun broadsides might sound quaint but it beats the performance of existing Union cruisers.

The class also more fully considers the lessons gained from the loss of the Bug in 1912.  This includes a higher main belt, and additional fire-fighting and pumping equipment (including hoses, generators, and all that stuff).

Also considered is a more explicit effort to improve habitability, particularly in tropical climates where the Union has only recently started deploying.  Crews on many ship types in the tropics have reported that heat and humidity below decks are often unbearable, if not uncomfortable, and could pose genuine threats to crew performance in battle.  Consequently, some efforts have been made to provide air-cooling and air-freshening equipment.  This will show up in other designs, of course.

As usual, the cruiser has some command facilities, night-fighting gear, and torpedoes, but omits dedicated minelaying equipment.

A production run of at least five units in 1916 and 1917 is anticipated - sufficient to screen a division of capital ships and to replace Bug.

Magdala, CL-42, laid down 1916
Pararehonava, CL-43, laid down 1916
Ohiyo, CL-44, laid down 1916
Myaamiaki, CL-45, laid down 1917
Yuma, CL-46, laid down 1917

CL1916C, laid down 1916

Displacement:
   5,211 t light; 5,424 t standard; 5,929 t normal; 6,332 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (470.22 ft / 465.88 ft) x 46.59 ft x (20.34 / 21.34 ft)
   (143.32 m / 142.00 m) x 14.20 m  x (6.20 / 6.51 m)

Armament:
      10 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1916 Model
     4 x Twin mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 150 per gun
     Anti-air guns in deck mounts, 1916 Model
     2 x Single mounts on sides, aft deck centre
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1916 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 684 lbs / 310 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   360.89 ft / 110.00 m   15.75 ft / 4.80 m
   Ends:   0.98" / 25 mm   104.95 ft / 31.99 m   11.81 ft / 3.60 m
     Main Belt covers 119 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      3.15" / 80 mm
   2nd:   0.79" / 20 mm   0.39" / 10 mm            -
   3rd:   0.39" / 10 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 3.15" / 80 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 50,938 shp / 38,000 Kw = 29.93 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 908 tons

Complement:
   337 - 439

Cost:
   £0.839 million / $3.357 million

Distribution of weights at normal displacement:
   Armament: 160 tons, 2.7 %
      - Guns: 160 tons, 2.7 %
   Armour: 1,093 tons, 18.4 %
      - Belts: 758 tons, 12.8 %
      - Armament: 54 tons, 0.9 %
      - Armour Deck: 258 tons, 4.4 %
      - Conning Tower: 22 tons, 0.4 %
   Machinery: 1,898 tons, 32.0 %
   Hull, fittings & equipment: 1,793 tons, 30.2 %
   Fuel, ammunition & stores: 718 tons, 12.1 %
   Miscellaneous weights: 267 tons, 4.5 %
      - On freeboard deck: 227 tons
      - Above deck: 40 tons

Fittings:
-32 t:  Redundant 1912 fire control
-50 t:  Flag facilities
-25 t:  L/R wireless
-25 t:  Night-fighting doodads
-25 t:  Additional fire-fighting mains
-25 t:  Additional pumps
-25 t:  Additional climate-control systems
-18 t:  2x3 530mm torpedoes, no reloads
-43 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,569 lbs / 2,072 Kg = 68.2 x 5.1 " / 130 mm shells or 0.9 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 1.9 ft / 0.6 m
   Roll period: 14.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.49
   Seaboat quality  (Average = 1.00): 1.18

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.470 / 0.478
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 21.58 kts
   Power going to wave formation at top speed: 58 %
   Trim (Max stability = 0, Max steadiness = 100): 51
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: -3.28 ft / -1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  24.61 ft / 7.50 m,  19.69 ft / 6.00 m
      - Forward deck:   45.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   20.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Quarter deck:   15.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Average freeboard:      17.32 ft / 5.28 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 114.9 %
      - Above water (accommodation/working, high = better): 137.4 %
   Waterplane Area: 14,080 Square feet or 1,308 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 72 lbs/sq ft or 351 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.83
      - Longitudinal: 1.78
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[The Rock Doctor]

Bug II Class Protected Cruiser

Come 1918, the Union got pulled into the discussion about royal yachts and time-sensitive VIP transport.  The idea under discussion at the time was to find a couple hundred tonnes of space in the new capital ship design and set it aside for a spanky VIP suite that the king and a relatively small retinue could use for overseas journeys - say, a funeral.  Alternately, a minister and delegation might find it useful for emergency conferences.

The Navy politely agreed that this was theoretically possible, but got a bit wiggy at the notion of losing a brand-new capital ship for weeks or months at a time if the king or somebody decided they wanted to wander off to the Ericas for a while.  As the funding situation for 1918 became a little clearer, an alternative was put forward:  Take the basic Magdala design, put in newer engines, and use the weight savings to build up the aft superstructure to include said VIP suite.  The capability is created, it costs less than it would to build into a capital ship, it'll be available years sooner than with a capital ship, and oh, by the way, it doesn't impact overall operational readiness quite as drastically.


Bug II, CL-47, laid down in 1918

Enter ship name, Enter country Enter ship type laid down 1918

Displacement:
   5,244 t light; 5,458 t standard; 5,929 t normal; 6,305 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (470.22 ft / 465.88 ft) x 46.59 ft x (20.34 / 21.28 ft)
   (143.32 m / 142.00 m) x 14.20 m  x (6.20 / 6.49 m)

Armament:
      10 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1918 Model
     4 x Twin mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 150 per gun
     Anti-air guns in deck mounts, 1918 Model
     2 x Single mounts on sides, aft deck centre
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1918 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 684 lbs / 310 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   360.89 ft / 110.00 m   15.75 ft / 4.80 m
   Ends:   0.98" / 25 mm   104.95 ft / 31.99 m   11.81 ft / 3.60 m
     Main Belt covers 119 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      3.15" / 80 mm
   2nd:   0.79" / 20 mm   0.39" / 10 mm            -
   3rd:   0.39" / 10 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 3.15" / 80 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 50,938 shp / 38,000 Kw = 29.93 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 847 tons

Complement:
   337 - 439

Cost:
   £1.011 million / $4.045 million

Distribution of weights at normal displacement:
   Armament: 160 tons, 2.7 %
      - Guns: 160 tons, 2.7 %
   Armour: 1,091 tons, 18.4 %
      - Belts: 756 tons, 12.8 %
      - Armament: 54 tons, 0.9 %
      - Armour Deck: 258 tons, 4.4 %
      - Conning Tower: 22 tons, 0.4 %
   Machinery: 1,838 tons, 31.0 %
   Hull, fittings & equipment: 1,793 tons, 30.2 %
   Fuel, ammunition & stores: 684 tons, 11.5 %
   Miscellaneous weights: 363 tons, 6.1 %
      - Hull below water: 25 tons
      - Hull above water: 25 tons
      - On freeboard deck: 206 tons
      - Above deck: 107 tons

Fittings:
-32 t:  Redundant 1912 fire control (AD)
-25 t:  L/R wireless (AD)
-50 t:  Flag facilities (AD)
-40 t:  VIP accommodation (FD)
-16 t:  Accommodation for four senior VIP aides (FD)
-30 t:  Accommodation for fifteen junior VIP aides (FD)
-12 t:  Office space for CIP aides
-2 t:   VIP cargo/luggage
-25 t:  Night-fighting doodads (FD)
-25 t:  Additional climate-control systems (FD)
-18 t:  2x3 530mm torpedoes, no reloads (FD)
-38 t:  Weight reserve (FD)
-25 t:  Additional fire-fighting mains (AW)
-25 t:  Additional pumps (BW)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,706 lbs / 2,135 Kg = 70.2 x 5.1 " / 130 mm shells or 0.9 torpedoes
   Stability (Unstable if below 1.00): 1.07
   Metacentric height 1.8 ft / 0.6 m
   Roll period: 14.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.50
   Seaboat quality  (Average = 1.00): 1.17

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.470 / 0.478
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 21.58 kts
   Power going to wave formation at top speed: 58 %
   Trim (Max stability = 0, Max steadiness = 100): 51
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: -3.28 ft / -1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  24.61 ft / 7.50 m,  19.69 ft / 6.00 m
      - Forward deck:   45.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   20.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Quarter deck:   15.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Average freeboard:      17.32 ft / 5.28 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 112.5 %
      - Above water (accommodation/working, high = better): 137.4 %
   Waterplane Area: 14,080 Square feet or 1,308 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 72 lbs/sq ft or 351 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.83
      - Longitudinal: 1.78
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[The Rock Doctor]

Warta Class Protected Cruiser

Following recent trends, their armament consists of a decent number of the reliable 130mm quick-firing gun.  Whereas the preceding Magdala and Bug II classes had a pair of singles on the sides amidships to boost fore/aft firepower, the Warta simply adds a fifth twin mount aft in a double-superfiring position.  While the navy acknowledges that the 130mm lacks penetrating power compared to a 150mm or 170mm sized gun, it doesn't have those guns to employ.  Plus 10 quick-firing guns should still make a mess of enemy torpedo-craft and find plenty of unarmored bits on enemy cruisers anyway.  Right?  Right.

The type has considerably more bunkerage than preceding types, which accounts for most of the size increase, really.  They're built to keep up mile-for-mile with the Czarownik class cruisers of the line and have an additional knot of speed for incremental station-keeping purposes.

The other change of interest is provision for a single armed floatplane on deck between the first and second funnels.  This would be used for scouting, perhaps spotting, and will build on operational experience gained by the training cruiser Danube's embarkation of a single floatplane in this time period.  The ship may have a canvas shelter or such for the plane when completed but for now is shown just with basic deck stowage.

Warta, CL-48, laid down 1920
Lyna, CL-49, laid down 1920

Enter ship name, Enter country Enter ship type laid down 1920

Displacement:
   5,974 t light; 6,210 t standard; 7,068 t normal; 7,755 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (491.48 ft / 479.00 ft) x 48.23 ft x (22.31 / 23.90 ft)
   (149.80 m / 146.00 m) x 14.70 m  x (6.80 / 7.28 m)

Armament:
      10 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1920 Model
     4 x Twin mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
     1 x Twin mount on centreline, aft deck forward
      1 double raised mount aft
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 150 per gun
     Anti-air guns in deck mounts, 1920 Model
     2 x Single mounts on sides, aft deck centre
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 4,000 per gun
     Machine guns in deck mounts, 1920 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 684 lbs / 310 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.15" / 80 mm   380.58 ft / 116.00 m   15.75 ft / 4.80 m
   Ends:   Unarmoured
     Main Belt covers 122 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.98" / 25 mm      3.15" / 80 mm
   2nd:   0.79" / 20 mm   0.20" / 5 mm            -

   - Armoured deck - single deck:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 3.15" / 80 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 65,683 shp / 49,000 Kw = 31.05 kts
   Range 18,000nm at 10.00 kts
   Bunker at max displacement = 1,545 tons

Complement:
   385 - 501

Cost:
   £1.407 million / $5.629 million

Distribution of weights at normal displacement:
   Armament: 148 tons, 2.1 %
      - Guns: 148 tons, 2.1 %
   Armour: 1,099 tons, 15.6 %
      - Belts: 750 tons, 10.6 %
      - Armament: 47 tons, 0.7 %
      - Armour Deck: 278 tons, 3.9 %
      - Conning Tower: 25 tons, 0.4 %
   Machinery: 2,297 tons, 32.5 %
   Hull, fittings & equipment: 2,069 tons, 29.3 %
   Fuel, ammunition & stores: 1,094 tons, 15.5 %
   Miscellaneous weights: 361 tons, 5.1 %
      - Hull below water: 30 tons
      - Hull above water: 30 tons
      - On freeboard deck: 160 tons
      - Above deck: 141 tons

Fittings
-15 t:  1912 Fire control (AD)
-25 t:  L/R wireless (AD)
-100 t:  Flag facilities (AD)
-24 t:  2x3 530mm torpedo carriages
-25 t:  Provisions for one armed floatplane
-25 t:  Night-fighting doodads
-84 t:  Weight reserve
-60 t:  Additional damage control equipment (BW/AW)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,164 lbs / 2,343 Kg = 77.0 x 5.1 " / 130 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 2.0 ft / 0.6 m
   Roll period: 14.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.49
   Seaboat quality  (Average = 1.00): 1.12

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.480 / 0.492
   Length to Beam Ratio: 9.93 : 1
   'Natural speed' for length: 21.89 kts
   Power going to wave formation at top speed: 60 %
   Trim (Max stability = 0, Max steadiness = 100): 54
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  25.26 ft / 7.70 m,  20.34 ft / 6.20 m
      - Forward deck:   45.00 %,  20.34 ft / 6.20 m,  20.34 ft / 6.20 m
      - Aft deck:   20.00 %,  12.47 ft / 3.80 m,  12.47 ft / 3.80 m
      - Quarter deck:   15.00 %,  12.47 ft / 3.80 m,  12.47 ft / 3.80 m
      - Average freeboard:      17.98 ft / 5.48 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 115.6 %
      - Above water (accommodation/working, high = better): 134.0 %
   Waterplane Area: 15,118 Square feet or 1,405 Square metres
   Displacement factor (Displacement / loading): 106 %
   Structure weight / hull surface area: 75 lbs/sq ft or 368 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.82
      - Longitudinal: 1.89
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[The Rock Doctor]

Rhein class light cruiser

The Union's movin' on up to a newer, larger type of light cruiser.

The class uses a new two-gun 150mm turret and barbette; four are embarked.  Also new are quadruple torpedo carriage for extra keel-breaking opportunities.  A single floatplane is embarked, without permanent hanger - the designers weren't quite sure how to fit one in on a ship this size just yet.

Consideration was given towards building a slightly less expensive ship with ~30 or 31 knots instead of 32, but the accountants were convinced that the incremental cost of building in the additional speed now was actually less than installing new machinery in ten or fifteen years.  Not that the accountants were assured of approving the latter in the first place, mind you.

Rhein, CL-50, laid down 1923
Oder, CL-51, laid down 1924
Svir, CL-52, laid down 1924

Enter ship name, Enter country Enter ship type laid down 1923

Displacement:
   7,911 t light; 8,228 t standard; 9,142 t normal; 9,873 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (592.02 ft / 577.43 ft) x 57.74 ft x (21.33 / 22.53 ft)
   (180.45 m / 176.00 m) x 17.60 m  x (6.50 / 6.87 m)

Armament:
      8 - 5.91" / 150 mm 45.0 cal guns - 103.86lbs / 47.11kg shells, 250 per gun
     Breech loading guns in turret on barbette mounts, 1923 Model
     4 x 2-gun mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      4 - 3.94" / 100 mm 45.0 cal guns - 30.78lbs / 13.96kg shells, 250 per gun
     Anti-air guns in deck mounts, 1923 Model
     4 x Single mounts on sides, evenly spread
      4 - 0.59" / 15.0 mm 45.0 cal guns - 0.11lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1923 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 954 lbs / 433 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.54" / 90 mm   390.42 ft / 119.00 m   16.37 ft / 4.99 m
   Ends:   Unarmoured
     Main Belt covers 104 % of normal length
     Main Belt inclined 16.00 degrees (positive = in)

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   0.98" / 25 mm      3.54" / 90 mm
   2nd:   0.79" / 20 mm   0.39" / 10 mm            -

   - Armoured deck - multiple decks:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 79,089 shp / 59,000 Kw = 32.03 kts
   Range 16,400nm at 10.00 kts
   Bunker at max displacement = 1,646 tons

Complement:
   466 - 607

Cost:
   £2.128 million / $8.513 million

Distribution of weights at normal displacement:
   Armament: 260 tons, 2.8 %
      - Guns: 260 tons, 2.8 %
   Armour: 1,566 tons, 17.1 %
      - Belts: 918 tons, 10.0 %
      - Armament: 225 tons, 2.5 %
      - Armour Deck: 390 tons, 4.3 %
      - Conning Tower: 33 tons, 0.4 %
   Machinery: 2,643 tons, 28.9 %
   Hull, fittings & equipment: 3,161 tons, 34.6 %
   Fuel, ammunition & stores: 1,231 tons, 13.5 %
   Miscellaneous weights: 280 tons, 3.1 %
      - On freeboard deck: 130 tons
      - Above deck: 150 tons

Fittings:
-26 t:  1918 fire control (AD)
-50 t:  Command facilities (AD)
-25 t:  L/R wireless (AD)
-25 t:  Nightfighting doodads (AD)
-30 t :  Armed floatplane and catapult (no permanent hanger) (FD)
-32 t:  2x4 530mm torpedos (no reloads) (FD)
-92 t:  Weight reserve (mostly FD)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     9,703 lbs / 4,401 Kg = 94.2 x 5.9 " / 150 mm shells or 1.4 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 2.7 ft / 0.8 m
   Roll period: 14.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.29
   Seaboat quality  (Average = 1.00): 1.08

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.450 / 0.460
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 24.03 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 4.92 ft / 1.50 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  26.57 ft / 8.10 m,  21.65 ft / 6.60 m
      - Forward deck:   30.00 %,  21.65 ft / 6.60 m,  21.65 ft / 6.60 m
      - Aft deck:   35.00 %,  13.78 ft / 4.20 m,  13.78 ft / 4.20 m
      - Quarter deck:   15.00 %,  13.78 ft / 4.20 m,  13.78 ft / 4.20 m
      - Average freeboard:      18.11 ft / 5.52 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 103.5 %
      - Above water (accommodation/working, high = better): 151.4 %
   Waterplane Area: 21,268 Square feet or 1,976 Square metres
   Displacement factor (Displacement / loading): 115 %
   Structure weight / hull surface area: 95 lbs/sq ft or 465 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.31
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[The Rock Doctor]

Volkhov Class Light Cruiser

The 1925 light cruiser is just the 1923 light cruiser with slightly more efficient machinery, heavier AA armament, and improved aviation facilities.  This has required some shifting around of fittings amidships to accommodate the hangers on either side of the aft funnel and the additional AA gun on either side of the forward superstructure.

Volkhov, CL-53, laid down 1925
Kemijoki, CL-54, laid down 1925
San, CL-55, laid down 1926

Enter ship name, Enter country Enter ship type laid down 1925

Displacement:
   7,919 t light; 8,246 t standard; 9,142 t normal; 9,859 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (592.02 ft / 577.43 ft) x 57.74 ft x (21.33 / 22.51 ft)
   (180.45 m / 176.00 m) x 17.60 m  x (6.50 / 6.86 m)

Armament:
      8 - 5.91" / 150 mm 45.0 cal guns - 103.86lbs / 47.11kg shells, 250 per gun
     Breech loading guns in turret on barbette mounts, 1925 Model
     4 x 2-gun mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      6 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Anti-air guns in deck mounts, 1925 Model
     6 x Single mounts on side ends, majority aft
      12 - 0.59" / 15.0 mm 45.0 cal guns - 0.10lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1925 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 1,017 lbs / 461 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.54" / 90 mm   390.42 ft / 119.00 m   16.37 ft / 4.99 m
   Ends:   Unarmoured
     Main Belt covers 104 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   0.98" / 25 mm      3.54" / 90 mm
   2nd:   0.79" / 20 mm   0.79" / 20 mm            -
   3rd:   0.59" / 15 mm         -               -

   - Armoured deck - multiple decks: 0.98" / 25 mm For and Aft decks
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 3.54" / 90 mm,  Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 79,089 shp / 59,000 Kw = 32.03 kts
   Range 16,400nm at 10.00 kts
   Bunker at max displacement = 1,613 tons

Complement:
   466 - 607

Cost:
   £2.371 million / $9.483 million

Distribution of weights at normal displacement:
   Armament: 272 tons, 3.0 %
   Armour: 1,593 tons, 17.4 %
      - Belts: 920 tons, 10.1 %
      - Armament: 249 tons, 2.7 %
      - Armour Deck: 390 tons, 4.3 %
      - Conning Tower: 33 tons, 0.4 %
   Machinery: 2,568 tons, 28.1 %
   Hull, fittings & equipment: 3,163 tons, 34.6 %
   Fuel, ammunition & stores: 1,223 tons, 13.4 %
   Miscellaneous weights: 323 tons, 3.5 %
      - On freeboard deck: 173 tons
      - Above deck: 150 tons

Fittings:
-28 t:  1918 fire control (AD)
-50 t:  Command facilities (AD)
-25 t:  L/R wireless (AD)
-25 t:  Nightfighting doodads (AD)
-55 t:  2 armed floatplane and catapult (w/hangers beside aft funnel (FD)
-32 t:  2x4 530mm torpedos (no reloads) (FD)
-108 t:  Weight reserve (mostly FD)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     10,050 lbs / 4,559 Kg = 97.6 x 5.9 " / 150 mm shells or 1.4 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 2.6 ft / 0.8 m
   Roll period: 14.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 61 %
         - Recoil effect (Restricted arc if above 1.00): 0.30
   Seaboat quality  (Average = 1.00): 1.08

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.450 / 0.460
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 24.03 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 4.92 ft / 1.50 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  26.57 ft / 8.10 m,  21.65 ft / 6.60 m
      - Forward deck:   30.00 %,  21.65 ft / 6.60 m,  21.65 ft / 6.60 m
      - Aft deck:   35.00 %,  13.78 ft / 4.20 m,  13.78 ft / 4.20 m
      - Quarter deck:   15.00 %,  13.78 ft / 4.20 m,  13.78 ft / 4.20 m
      - Average freeboard:      18.11 ft / 5.52 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 101.2 %
      - Above water (accommodation/working, high = better): 151.4 %
   Waterplane Area: 21,268 Square feet or 1,976 Square metres
   Displacement factor (Displacement / loading): 116 %
   Structure weight / hull surface area: 95 lbs/sq ft or 466 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.32
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent

Pic, with 1923 above and 1925 below.