Protected cruisers

[maddox]

Obviously, the tread for protected cruisers to appear ...

Removed from the French Fleet list.

MN Guichen
MN Jurien De La Graviere
MN Chateaurenault

French Protected Cruiser laid down 1897

Displacement:
  4,983 t light; 5,235 t standard; 6,000 t normal; 6,588 t full load

Dimensions: Length overall / water x beam x draught
  445.00 ft / 445.00 ft x 48.00 ft x 20.00 ft (normal load)
  135.64 m / 135.64 m x 14.63 m  x 6.10 m

Armament:
     8 - 6.50" / 165 mm guns in single mounts, 137.06lbs / 62.17kg shells, 1897 Model
    Breech loading guns in casemate mounts
    on side, evenly spread
     10 - 3.94" / 100 mm guns in single mounts, 30.51lbs / 13.84kg shells, 1897 Model
    Breech loading guns in deck mounts
    on side, evenly spread
     4 - 2.76" / 70.0 mm guns in single mounts, 10.47lbs / 4.75kg shells, 1897 Model
    Breech loading guns in deck mounts
    on side, evenly spread
     10 - 1.85" / 47.0 mm guns in single mounts, 3.17lbs / 1.44kg shells, 1897 Model
    Breech loading guns in deck mounts
    on side, evenly spread, 4 raised mounts
  Weight of broadside 1,475 lbs / 669 kg
  Shells per gun, main battery: 150
  2 - 18.0" / 457.2 mm above water torpedoes

Armour:
  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
  Main:   4.00" / 102 mm         -               -
  2nd:   2.00" / 51 mm         -               -

  - Armour deck: 3.00" / 76 mm, Conning tower: 6.50" / 165 mm

Machinery:
  Coal fired boilers, complex reciprocating steam engines,
  Direct drive, 2 shafts, 13,405 ihp / 10,000 Kw = 21.08 kts
  Range 7,000nm at 10.00 kts (Bunkerage = 1,376 tons)

Complement:
  340 - 443

Cost:
  £0.637 million / $2.548 million

Distribution of weights at normal displacement:
  Armament: 184 tons, 3.1 %
  Armour: 964 tons, 16.1 %
     - Belts: 0 tons, 0.0 %
     - Torpedo bulkhead: 0 tons, 0.0 %
     - Armament: 166 tons, 2.8 %
     - Armour Deck: 752 tons, 12.5 %
     - Conning Tower: 46 tons, 0.8 %
  Machinery: 2,198 tons, 36.6 %
  Hull, fittings & equipment: 1,622 tons, 27.0 %
  Fuel, ammunition & stores: 1,017 tons, 16.9 %
  Miscellaneous weights: 15 tons, 0.3 %

Overall survivability and seakeeping ability:
  Survivability (Non-critical penetrating hits needed to sink ship):
    3,026 lbs / 1,373 Kg = 22.1 x 6.5 " / 165 mm shells or 0.7 torpedoes
  Stability (Unstable if below 1.00): 1.63
  Metacentric height 3.8 ft / 1.1 m
  Steadiness   - As gun platform (Average = 50 %): 70 %
        - Recoil effect (Restricted arc if above 1.00): 0.16
  Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
  Hull has a flush deck
  Block coefficient: 0.492
  Length to Beam Ratio: 9.27 : 1
  'Natural speed' for length: 21.10 kts
  Power going to wave formation at top speed: 42 %
  Trim (Max stability = 0, Max steadiness = 100): 58
  Bow angle (Positive = bow angles forward): 0.00 degrees
  Stern overhang: 0.00 ft / 0.00 m
  Freeboard (% = measuring location as a percentage of overall length):
     - Stem:      14.00 ft / 4.27 m
     - Forecastle (20 %):   10.00 ft / 3.05 m
     - Mid (50 %):      10.00 ft / 3.05 m
     - Quarterdeck (15 %):   8.00 ft / 2.44 m
     - Stern:      8.00 ft / 2.44 m
     - Average freeboard:   9.67 ft / 2.95 m
  Ship tends to be wet forward

Ship space, strength and comments:
  Space   - Hull below water (magazines/engines, low = better): 142.5 %
     - Above water (accommodation/working, high = better): 68.4 %
  Waterplane Area: 13,555 Square feet or 1,259 Square metres
  Displacement factor (Displacement / loading): 88 %
  Structure weight / hull surface area: 76 lbs/sq ft or 371 Kg/sq metre
  Hull strength (Relative):
     - Cross-sectional: 1.01
     - Longitudinal: 0.99
     - Overall: 1.00
  Hull space for machinery, storage, compartmentation is cramped
  Room for accommodation and workspaces is cramped
  Ship has slow, easy roll, a good, steady gun platform
  Good seaboat, rides out heavy weather easily

Scrapped 1910.

[maddox]

UKN build cruisers. A class of 5, all named on Canadian cities, Norman or French.
The test with a light deck and a light belt isn't conclusive in 1908...  maybe when armed conflict erupts...

Only Quebec is still in active service.

Quebec Class, France destroyer Leader laid down 1902 (Engine 1908)

Displacement:
   2.422 t light; 2.571 t standard; 3.193 t normal; 3.690 t full load

Dimensions: Length overall / water x beam x draught
   334,00 ft / 330,00 ft x 37,00 ft x 16,00 ft (normal load)
   101,80 m / 100,58 m x 11,28 m  x 4,88 m

Armament:
     2 - 6,50" / 165 mm guns in single mounts, 145,00lbs / 65,77kg shells, 1902 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
     4 - 6,50" / 165 mm guns in single mounts, 145,00lbs / 65,77kg shells, 1902 Model
     Breech loading guns in casemate mounts
     on side ends, evenly spread
     8 - 2,76" / 70,0 mm guns in single mounts, 12,00lbs / 5,44kg shells, 1902 Model
     Quick firing guns in deck mounts
     on side, evenly spread, 4 raised mounts
     2 - 0,98" / 25,0 mm guns in single mounts, 0,48lbs / 0,22kg shells, 1902 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 967 lbs / 439 kg
   Shells per gun, main battery: 140
   2 - 20,0" / 508 mm above water torpedoes, 2 - 20,0" / 508 mm submerged torpedo tubes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2,00" / 51 mm   330,00 ft / 100,58 m   10,00 ft / 3,05 m
   Ends:   Unarmoured
   Upper:   1,00" / 25 mm   330,00 ft / 100,58 m   6,00 ft / 1,83 m
     Main Belt covers 154% of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2,00" / 51 mm   1,00" / 25 mm            -
   2nd:   1,00" / 25 mm         -               -
   3rd:   1,00" / 25 mm         -               -
   4th:   1,00" / 25 mm         -               -

  - Armour deck: 1,50" / 38 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 2 shafts, 12.215 shp / 9.112 Kw = 22,00 kts
   Range 6.300nm at 12,00 kts
   Bunker at max displacement = 1.119 tons (100% coal)

Complement:
   212 - 276

Cost:
   £0,275 million / $1,100 million

Distribution of weights at normal displacement:
   Armament: 113 tons, 3,6%
   Armour: 602 tons, 18,8%
      - Belts: 317 tons, 9,9%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 43 tons, 1,3%
      - Armour Deck: 241 tons, 7,6%
      - Conning Tower: 0 tons, 0,0%
   Machinery: 679 tons, 21,3%
   Hull, fittings & equipment: 979 tons, 30,7%
   Fuel, ammunition & stores: 770 tons, 24,1%
   Miscellaneous weights: 50 tons, 1,6%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3.246 lbs / 1.472 Kg = 23,7 x 6,5 " / 165 mm shells or 0,8 torpedoes
   Stability (Unstable if below 1.00): 1,28
   Metacentric height 1,8 ft / 0,5 m
   Roll period: 11,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,65
   Seaboat quality  (Average = 1.00): 1,44

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,572
   Length to Beam Ratio: 8,92 : 1
   'Natural speed' for length: 18,17 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 4,00 ft / 1,22 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      20,00 ft / 6,10 m
      - Forecastle (20%):   16,00 ft / 4,88 m
      - Mid (50%):      12,00 ft / 3,66 m
      - Quarterdeck (15%):   12,00 ft / 3,66 m
      - Stern:      12,00 ft / 3,66 m
      - Average freeboard:   13,72 ft / 4,18 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 105,6%
      - Above water (accommodation/working, high = better): 90,7%
   Waterplane Area: 8.699 Square feet or 808 Square metres
   Displacement factor (Displacement / loading): 109%
   Structure weight / hull surface area: 63 lbs/sq ft or 308 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,91
      - Longitudinal: 2,26
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Modified to remove a glaring flaw.

[maddox]

The 5th rattlesnake cruiser from the confederated States of America, build in Halifax, as an export class of ships.

Rebuild to French specs in 1909

Crotalus Primus, french cruiser laid down 1907 (Engine 1909)

Displacement:
   4.716 t light; 4.984 t standard; 5.932 t normal; 6.690 t full load

Dimensions: Length overall / water x beam x draught
   470,00 ft / 470,00 ft x 50,00 ft x 19,00 ft (normal load)
   143,26 m / 143,26 m x 15,24 m  x 5,79 m

Armament:
      4 - 6,50" / 165 mm guns in single mounts, 143,30lbs / 65,00kg shells, 1907 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      4 - 6,50" / 165 mm guns in single mounts, 141,10lbs / 64,00kg shells, 1907 Model
     Quick firing guns in deck mounts with hoists
     on centreline ends, evenly spread
      8 - 2,76" / 70,0 mm guns in single mounts, 10,47lbs / 4,75kg shells, 1907 Model
     Quick firing guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
      4 - 0,98" / 25,0 mm guns in single mounts, 0,48lbs / 0,22kg shells, 1907 Model
     Machine guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
   Weight of broadside 1.223 lbs / 555 kg
   Shells per gun, main battery: 200
   4 - 20,0" / 508 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,00" / 76 mm   340,00 ft / 103,63 m   12,00 ft / 3,66 m
   Ends:   Unarmoured
     Main Belt covers 111% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1,00" / 25 mm   1,00" / 25 mm      3,00" / 76 mm
   2nd:   1,00" / 25 mm   1,00" / 25 mm      3,00" / 76 mm
   3rd:   1,00" / 25 mm   1,00" / 25 mm            -
   4th:   1,00" / 25 mm   1,00" / 25 mm            -

   - Armour deck: 2,00" / 51 mm, Conning tower: 3,00" / 76 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 21.235 shp / 15.841 Kw = 24,00 kts
   Range 8.000nm at 12,00 kts
   Bunker at max displacement = 1.706 tons (60% coal)

Complement:
   337 - 439

Cost:
   £0,432 million / $1,729 million

Distribution of weights at normal displacement:
   Armament: 148 tons, 2,5%
   Armour: 1.154 tons, 19,5%
      - Belts: 503 tons, 8,5%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 69 tons, 1,2%
      - Armour Deck: 562 tons, 9,5%
      - Conning Tower: 21 tons, 0,4%
   Machinery: 1.021 tons, 17,2%
   Hull, fittings & equipment: 2.324 tons, 39,2%
   Fuel, ammunition & stores: 1.216 tons, 20,5%
   Miscellaneous weights: 70 tons, 1,2%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     9.426 lbs / 4.276 Kg = 68,8 x 6,5 " / 165 mm shells or 1,5 torpedoes
   Stability (Unstable if below 1.00): 1,28
   Metacentric height 2,8 ft / 0,8 m
   Roll period: 12,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,58
   Seaboat quality  (Average = 1.00): 2,00

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,465
   Length to Beam Ratio: 9,40 : 1
   'Natural speed' for length: 21,68 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 35
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      24,00 ft / 7,32 m
      - Forecastle (20%):   20,00 ft / 6,10 m
      - Mid (50%):      18,00 ft / 5,49 m
      - Quarterdeck (15%):   18,00 ft / 5,49 m
      - Stern:      18,00 ft / 5,49 m
      - Average freeboard:   19,02 ft / 5,80 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 83,6%
      - Above water (accommodation/working, high = better): 158,4%
   Waterplane Area: 15.179 Square feet or 1.410 Square metres
   Displacement factor (Displacement / loading): 133%
   Structure weight / hull surface area: 84 lbs/sq ft or 412 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,91
      - Longitudinal: 2,35
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather


The typical French negatively angled bow, the exchange for the 6" guns to the bigger 165mm guns and the ubuqtous 70mm QF to replace the 4"

[maddox]

The previous SpringSharp  file is found here

The wargame results from the Iberians shocked the French naval experts.
The good results, as far as possible of the Demarce III's inspired the naval architects to use the large available reserve weight.
The advent of the 100 tons Fire Control -as mounted on the Demarce IV cruisers and the newly aquired technologies of heavy 21" torpedos, Anti submarine warfare and the ERAD detection apparatus make from these modern vessels an even more feared opponent.

Demarce III, France protected cruiser laid down 1911 (Engine 1912)

Displacement:
   5.929 t light; 6.193 t standard; 7.284 t normal; 8.157 t full load

Dimensions: Length overall / water x beam x draught
   529,20 ft / 528,22 ft x 49,21 ft x 19,19 ft (normal load)
   161,30 m / 161,00 m x 15,00 m  x 5,85 m

Armament:
     8 - 6,50" / 165 mm guns (4x2 guns), 143,30lbs / 65,00kg shells, 1911 Model
     Breech loading guns in deck mounts with hoists
     on centreline, evenly spread, 2 raised mounts
     Aft Main mounts separated by engine room
     4 - 2,76" / 70,0 mm guns in single mounts, 10,47lbs / 4,75kg shells, 1911 Model
     Quick firing guns in deck mounts with hoists
     on side, evenly spread
     6 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1911 Model
     Anti-aircraft guns in deck mounts
     on centreline, evenly spread, all raised mounts
   Weight of broadside 1.198 lbs / 543 kg
   Shells per gun, main battery: 175
   8 - 21,0" / 533,4 mm above water torpedoes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,00" / 76 mm   380,00 ft / 115,82 m   14,50 ft / 4,42 m
   Ends:   Unarmoured
     Main Belt covers 111% of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2,00" / 51 mm   1,00" / 25 mm      3,00" / 76 mm
   2nd:   1,00" / 25 mm   1,00" / 25 mm      2,00" / 51 mm
   3rd:   0,50" / 13 mm   0,50" / 13 mm            -

  - Armour deck: 1,50" / 38 mm, Conning tower: 5,00" / 127 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 42.360 shp / 31.600 Kw = 28,00 kts
   Range 8.000nm at 14,00 kts
   Bunker at max displacement = 1.964 tons

Complement:
   393 - 512

Cost:
   £0,564 million / $2,258 million

Distribution of weights at normal displacement:
   Armament: 143 tons, 2,0%
   Armour: 1.267 tons, 17,4%
      - Belts: 674 tons, 9,3%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 67 tons, 0,9%
      - Armour Deck: 485 tons, 6,7%
      - Conning Tower: 40 tons, 0,6%
   Machinery: 1.689 tons, 23,2%
   Hull, fittings & equipment: 2.549 tons, 35,0%
   Fuel, ammunition & stores: 1.355 tons, 18,6%
   Miscellaneous weights: 280 tons, 3,8%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8.786 lbs / 3.985 Kg = 64,1 x 6,5 " / 165 mm shells or 1,3 torpedoes
   Stability (Unstable if below 1.00): 1,15
   Metacentric height 2,2 ft / 0,7 m
   Roll period: 13,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,62
   Seaboat quality  (Average = 1.00): 1,25

Hull form characteristics:
   Hull has low quarterdeck
   Block coefficient: 0,511
   Length to Beam Ratio: 10,73 : 1
   'Natural speed' for length: 22,98 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 0,98 ft / 0,30 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      23,62 ft / 7,20 m
      - Forecastle (20%):   18,04 ft / 5,50 m
      - Mid (50%):      16,40 ft / 5,00 m
      - Quarterdeck (15%):   9,84 ft / 3,00 m (16,40 ft / 5,00 m before break)
      - Stern:      9,84 ft / 3,00 m
      - Average freeboard:   16,44 ft / 5,01 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 95,4%
      - Above water (accommodation/working, high = better): 112,1%
   Waterplane Area: 17.495 Square feet or 1.625 Square metres
   Displacement factor (Displacement / loading): 120%
   Structure weight / hull surface area: 87 lbs/sq ft or 426 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,97
      - Longitudinal: 1,28
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

The dedication of 50 tons to Crew comfort makes this vessel ready for deployment in every weatherzone on earth, except the artic ice.

An early 1916 refit gives this ship.

70mm QF guns are changed to 6 37mm AA guns.
35 tons are reserved for the 21" CSA provided Torpedos in Italian style twin tubes.
1 fish in the tubes and 1 reload per tube. 3 tons of this are rails set in the deck and trolleys to move the 2 ton heavy torpedos in relative safety.


100 ton firecontrol
25 ton Enhanced Radio Aural Detection equipment
25 ton long range marconi
2 depth charge handling apparatus and 120 charges

3 tons undefined

[maddox]

Demarce IV, French Light cruiser laid down 1915 (Engine 1912)

Displacement:
   8.869 t light; 9.243 t standard; 10.805 t normal; 12.055 t full load

Dimensions: Length overall / water x beam x draught
   552,17 ft / 551,18 ft x 52,49 ft x 26,25 ft (normal load)
   168,30 m / 168,00 m x 16,00 m  x 8,00 m

Armament:
      8 - 7,68" / 195 mm guns (4x2 guns), 264,55lbs / 120,00kg shells, 1915 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      4 - 2,76" / 70,0 mm guns in single mounts, 10,47lbs / 4,75kg shells, 1915 Model
     Quick firing guns in deck mounts
     on side, evenly spread
      6 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1915 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 2.168 lbs / 983 kg
   Shells per gun, main battery: 130
   8 - 21,0" / 533,4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4,00" / 102 mm   413,39 ft / 126,00 m   10,00 ft / 3,05 m
   Ends:   Unarmoured
     Main Belt covers 115% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2,00" / 51 mm   1,00" / 25 mm      3,00" / 76 mm
   2nd:   1,00" / 25 mm   0,50" / 13 mm            -
   3rd:   0,50" / 13 mm         -               -

   - Armour deck: 2,25" / 57 mm, Conning tower: 5,00" / 127 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 79.968 shp / 59.656 Kw = 31,00 kts
   Range 9.000nm at 14,00 kts
   Bunker at max displacement = 2.812 tons

Complement:
   529 - 688

Cost:
   £1,385 million / $5,540 million

Distribution of weights at normal displacement:
   Armament: 233 tons, 2,2%
   Armour: 1.598 tons, 14,8%
      - Belts: 671 tons, 6,2%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 73 tons, 0,7%
      - Armour Deck: 801 tons, 7,4%
      - Conning Tower: 53 tons, 0,5%
   Machinery: 3.189 tons, 29,5%
   Hull, fittings & equipment: 3.630 tons, 33,6%
   Fuel, ammunition & stores: 1.936 tons, 17,9%
   Miscellaneous weights: 220 tons, 2,0%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8.354 lbs / 3.789 Kg = 36,9 x 7,7 " / 195 mm shells or 1,1 torpedoes
   Stability (Unstable if below 1.00): 1,10
   Metacentric height 2,3 ft / 0,7 m
   Roll period: 14,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,95
   Seaboat quality  (Average = 1.00): 1,21

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,498
   Length to Beam Ratio: 10,50 : 1
   'Natural speed' for length: 23,48 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 0,98 ft / 0,30 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      26,25 ft / 8,00 m
      - Forecastle (17%):   18,60 ft / 5,67 m
      - Mid (50%):      18,60 ft / 5,67 m
      - Quarterdeck (8%):   18,60 ft / 5,67 m
      - Stern:      18,60 ft / 5,67 m
      - Average freeboard:   19,12 ft / 5,83 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 114,7%
      - Above water (accommodation/working, high = better): 104,3%
   Waterplane Area: 19.243 Square feet or 1.788 Square metres
   Displacement factor (Displacement / loading): 107%
   Structure weight / hull surface area: 100 lbs/sq ft or 488 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,93
      - Longitudinal: 1,93
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

The 220 tons of misc weight are divided as following.
100 tons FC
25 tons Enhanced Radio Aural Detection equipment
25 tons Long range Marconi
35 tons torpedos. 8 21" CSA provided 2 ton torpedos in the Italian style twin tubes. 1 reload per tube+ reloading equipment.
35 tons crew comfort.

Modified , resimming it due lost data.
Change is in armor distribution, better stability and no wet forward warning

[maddox]

An overlooked one.

Demarce II, France protected cruiser laid down 1910 (Engine 1909)

Displacement:
   4.968 t light; 5.165 t standard; 6.484 t normal; 7.539 t full load

Dimensions: Length overall / water x beam x draught
   493,77 ft / 492,13 ft x 49,21 ft x 18,37 ft (normal load)
   150,50 m / 150,00 m x 15,00 m  x 5,60 m

Armament:
      4 - 6,50" / 165 mm guns in single mounts, 143,30lbs / 65,00kg shells, 1910 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      6 - 2,76" / 70,0 mm guns in single mounts, 11,02lbs / 5,00kg shells, 1910 Model
     Quick firing guns in deck mounts
     on side, evenly spread, 2 raised mounts
      4 - 0,98" / 25,0 mm guns (2x2 guns), 0,48lbs / 0,22kg shells, 1910 Model
     Machine guns in deck mounts
     on centreline ends, evenly spread, all raised mounts
   Weight of broadside 641 lbs / 291 kg
   Shells per gun, main battery: 180
   6 - 20,0" / 508 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,00" / 76 mm   330,00 ft / 100,58 m   12,00 ft / 3,66 m
   Ends:   Unarmoured
     Main Belt covers 103% of normal length
     Main belt does not fully cover magazines and engineering spaces

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2,00" / 51 mm   1,00" / 25 mm      3,00" / 76 mm
   2nd:   1,00" / 25 mm   0,50" / 13 mm            -
   3rd:   0,50" / 13 mm   0,50" / 13 mm            -

   - Armour deck: 1,50" / 38 mm, Conning tower: 3,00" / 76 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 35.312 shp / 26.343 Kw = 27,00 kts
   Range 7.000nm at 14,00 kts
   Bunker at max displacement = 2.374 tons (80% coal)

Complement:
   360 - 469

Cost:
   £0,481 million / $1,922 million

Distribution of weights at normal displacement:
   Armament: 77 tons, 1,2%
   Armour: 1.007 tons, 15,5%
      - Belts: 492 tons, 7,6%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 40 tons, 0,6%
      - Armour Deck: 452 tons, 7,0%
      - Conning Tower: 22 tons, 0,3%
   Machinery: 1.731 tons, 26,7%
   Hull, fittings & equipment: 2.054 tons, 31,7%
   Fuel, ammunition & stores: 1.515 tons, 23,4%
   Miscellaneous weights: 100 tons, 1,5%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6.514 lbs / 2.955 Kg = 47,5 x 6,5 " / 165 mm shells or 1,1 torpedoes
   Stability (Unstable if below 1.00): 1,34
   Metacentric height 2,9 ft / 0,9 m
   Roll period: 12,1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,25
   Seaboat quality  (Average = 1.00): 1,27

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,510
   Length to Beam Ratio: 10,00 : 1
   'Natural speed' for length: 22,18 kts
   Power going to wave formation at top speed: 52 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 1,64 ft / 0,50 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      24,61 ft / 7,50 m
      - Forecastle (20%):   14,76 ft / 4,50 m
      - Mid (50%):      14,76 ft / 4,50 m
      - Quarterdeck (15%):   14,76 ft / 4,50 m
      - Stern:      14,76 ft / 4,50 m
      - Average freeboard:   15,55 ft / 4,74 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 108,9%
      - Above water (accommodation/working, high = better): 127,2%
   Waterplane Area: 16.285 Square feet or 1.513 Square metres
   Displacement factor (Displacement / loading): 125%
   Structure weight / hull surface area: 78 lbs/sq ft or 379 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,98
      - Longitudinal: 1,23
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily


25 tons long range marconi
25 tons ears
20 tons torpedo's  1 in the six tubes 2 reloads per tube+2 tons reloading equipment.
30 tons crew comfort.

6 build
Arielle
Bernadice
Clarie
Danielle
Evaine
Francine

[maddox]

The addition to the forces early 1917.

Puy-de-Dôme
Ardoukoba
Boina
Garbes
Tiho
Fako
Named for volcano's on Djibouti Island

1919 brings another 6 of this class, with the only difference, date of lay down.

Arenal
Barva
Irazú
Miravalles
Orosí
Platanar
Named for Volcano's in the New Rhun Great Canal zone.

Demarce IIIB, French Protected cruiser laid down 1915/1917 (Engine 1916)

Displacement:
   6.400 t light; 6.644 t standard; 8.144 t normal; 9.344 t full load

Dimensions: Length overall / water x beam x draught
   557,74 ft / 554,46 ft x 49,21 ft x 19,36 ft (normal load)
   170,00 m / 169,00 m x 15,00 m  x 5,90 m

Armament:
      12 - 5,51" / 140 mm guns (6x2 guns), 92,59lbs / 42,00kg shells, 1915 Model
     Quick firing guns in deck mounts with hoists
     on centreline, evenly spread, 3 raised mounts
      6 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1915 Model
     Anti-aircraft guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
   Weight of broadside 1.120 lbs / 508 kg
   Shells per gun, main battery: 130
   6 - 21,0" / 533,4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,00" / 76 mm   371,49 ft / 113,23 m   10,00 ft / 3,05 m
   Ends:   Unarmoured
     Main Belt covers 103% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   3,00" / 76 mm   1,00" / 25 mm      3,00" / 76 mm
   2nd:   0,50" / 13 mm   0,50" / 13 mm            -

   - Armour deck: 1,50" / 38 mm, Conning tower: 3,00" / 76 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 58.929 shp / 43.961 Kw = 30,00 kts
   Range 9.000nm at 16,00 kts
   Bunker at max displacement = 2.700 tons

Complement:
   428 - 557

Cost:
   £0,928 million / $3,711 million

Distribution of weights at normal displacement:
   Armament: 127 tons, 1,6%
   Armour: 1.091 tons, 13,4%
      - Belts: 458 tons, 5,6%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 84 tons, 1,0%
      - Armour Deck: 523 tons, 6,4%
      - Conning Tower: 26 tons, 0,3%
   Machinery: 2.196 tons, 27,0%
   Hull, fittings & equipment: 2.756 tons, 33,8%
   Fuel, ammunition & stores: 1.744 tons, 21,4%
   Miscellaneous weights: 230 tons, 2,8%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8.870 lbs / 4.023 Kg = 105,9 x 5,5 " / 140 mm shells or 1,2 torpedoes
   Stability (Unstable if below 1.00): 1,18
   Metacentric height 2,3 ft / 0,7 m
   Roll period: 13,5 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,57
   Seaboat quality  (Average = 1.00): 1,21

Hull form characteristics:
   Hull has low quarterdeck
   Block coefficient: 0,540
   Length to Beam Ratio: 11,27 : 1
   'Natural speed' for length: 23,55 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 3,28 ft / 1,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      26,25 ft / 8,00 m
      - Forecastle (23%):   19,19 ft / 5,85 m
      - Mid (55%):      16,40 ft / 5,00 m
      - Quarterdeck (11%):   9,84 ft / 3,00 m (16,40 ft / 5,00 m before break)
      - Stern:      9,84 ft / 3,00 m
      - Average freeboard:   17,43 ft / 5,31 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 102,8%
      - Above water (accommodation/working, high = better): 121,6%
   Waterplane Area: 18.860 Square feet or 1.752 Square metres
   Displacement factor (Displacement / loading): 121%
   Structure weight / hull surface area: 85 lbs/sq ft or 416 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,97
      - Longitudinal: 1,26
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

A futher development of the Demarce III protected cruiser, a few tons heavier.
35 tons are reserved for the 21" CSA provided Torpedos in Italian style twin tubes.
1 fish in the tubes and 1 reload per tube. 3 tons of this are rails set in the deck and trolleys to move the 2 ton heavy torpedos in relative safety.


100 ton firecontrol
25 ton Enhanced Radio Aural Detection equipment
25 ton long range marconi
30 ton 3 depth charge stern racks and 90 charges

15 ton crew comfort
20 ton damage control
15 ton reserve

Modified to add the 6 new ships.

[maddox]

November 17th 1916, first longer time trial run of the first Volcano class protected cruiser Puy-de-Dôme.

Bay of Biscay 80 nautical miles west of Brest.

The weather typical, strong southeastern winds, lively seaway and showers, 12°C

The deck bustling with activity, a torpedo trolly being loaded with a training torpedo that was stored in a deck locker. The use of block and tackle, loading ramp and raw manpower to move the 2 ton weapon is proving laborous and difficult on the pitching deck. Men struggle to move and stop the trolly, as it tends to roll to the lower parts, and those shift.

2 men lash a Tirfor and a belaying block and tackle on the opposite side of the trolly, and start pulling the heavy contraption to the tripple starboard torpedo tubes.

Unfortunatly, the continious movement shifts the load and the offset force starts tipping over the trolly. The heavy dummy torpedo rolls out of the cradle.

The pitching deck send the 2 tons weapon rolling, the thin contra rotating propellers shedding bronze blades when these hit any sturdy steel structure, the thin rudders bend and buckle even easier.  Men dodge for their lives.
The aft deckhouse gets a serious dent, a life jacket locker just flattened like a tin can, the captains gig ends with a stoved in side and 10 meters of railing just disapearing before the rolling club goes over the side.

Mon Capitain, the reloading equipment seems to malfunction in heavy weather.

Ah Jaques, your power of cool understatement still amazes me. After the first merde that penetrated the wind and the noise of the engines the situation got my attention. We are lucky that there are no wounded.

Captain, do you think the shipyard will now listen to us, and expand the aft deckhouse so we can reload the tubes from inside that?

I hope so, as if they don't I will recommend to remove the spare torpedo's. As our fastest reload time in smooth weather was at least 20 minutes. Getting that fish out it's locker, load it on the trolley, pull it along the rails, and then shoving it up in the tube.  I cannot imagine us doing that under fire, with battle damage.

Hmm, converting those lockers for vinogel storage should be straightforward. The crew would cheer for that.