Possible USA Armada de Union

[Sachmle]

2 Independencia Class (1890) Pre-Dreadnougts
Independencia, USA Battleship laid down 1890

Displacement:
   9,476 t light; 10,048 t standard; 11,097 t normal; 11,937 t full load

Dimensions: Length overall / water x beam x draught
   340.00 ft / 340.00 ft x 62.00 ft x 25.00 ft (normal load)
   103.63 m / 103.63 m x 18.90 m  x 7.62 m

Armament:
      4 - 11.00" / 279 mm guns in single mounts, 650.00lbs / 294.84kg shells, 1890 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      16 - 7.00" / 178 mm guns in single mounts, 170.00lbs / 77.11kg shells, 1890 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
     16 guns in hull casemates - Limited use in all but light seas
      4 - 6.00" / 152 mm guns in single mounts, 100.00lbs / 45.36kg shells, 1890 Model
     Quick firing guns in deck mounts
     on side, evenly spread
      6 - 2.95" / 75.0 mm guns in single mounts, 12.00lbs / 5.44kg shells, 1890 Model
     Quick firing guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
      4 - 2.28" / 58.0 mm guns in single mounts, 6.00lbs / 2.72kg shells, 1890 Model
     Quick firing guns in deck mounts
     on side ends, evenly spread, all raised mounts - superfiring
   Weight of broadside 5,816 lbs / 2,638 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   10.0" / 254 mm   240.00 ft / 73.15 m   12.00 ft / 3.66 m
   Ends:   8.00" / 203 mm   100.00 ft / 30.48 m   12.00 ft / 3.66 m
   Upper:   8.00" / 203 mm   240.00 ft / 73.15 m   8.00 ft / 2.44 m
     Main Belt covers 109 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   8.00" / 203 mm   4.00" / 102 mm      8.00" / 203 mm
   2nd:   4.00" / 102 mm         -               -
   3rd:   4.00" / 102 mm         -               -
   4th:   1.00" / 25 mm         -               -
   5th:   1.00" / 25 mm         -               -

   - Armour deck: 1.25" / 32 mm, Conning tower: 10.00" / 254 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 4 shafts, 10,477 ihp / 7,816 Kw = 17.00 kts
   Range 6,000nm at 10.00 kts
   Bunker at max displacement = 1,889 tons (100% coal)

Complement:
   539 - 702

Cost:
   £1.227 million / $4.908 million

Distribution of weights at normal displacement:
   Armament: 742 tons, 6.7 %
   Armour: 3,657 tons, 33.0 %
      - Belts: 2,301 tons, 20.7 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 845 tons, 7.6 %
      - Armour Deck: 404 tons, 3.6 %
      - Conning Tower: 107 tons, 1.0 %
   Machinery: 1,940 tons, 17.5 %
   Hull, fittings & equipment: 3,076 tons, 27.7 %
   Fuel, ammunition & stores: 1,622 tons, 14.6 %
   Miscellaneous weights: 60 tons, 0.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8,618 lbs / 3,909 Kg = 12.9 x 11.0 " / 279 mm shells or 1.3 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 3.5 ft / 1.1 m
   Roll period: 13.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 61 %
         - Recoil effect (Restricted arc if above 1.00): 0.61
   Seaboat quality  (Average = 1.00): 1.25

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.737
   Length to Beam Ratio: 5.48 : 1
   'Natural speed' for length: 18.44 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 49
   Bow angle (Positive = bow angles forward): -14.00 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 (30 %):   14.00 ft / 4.27 m
      - Mid (40 %):      14.00 ft / 4.27 m
      - Quarterdeck (20 %):   14.00 ft / 4.27 m
      - Stern:      14.00 ft / 4.27 m
      - Average freeboard:   14.00 ft / 4.27 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 107.4 %
      - Above water (accommodation/working, high = better): 86.4 %
   Waterplane Area: 17,457 Square feet or 1,622 Square metres
   Displacement factor (Displacement / loading): 82 %
   Structure weight / hull surface area: 121 lbs/sq ft or 591 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.91
      - Longitudinal: 2.28
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is cramped
   Good seaboat, rides out heavy weather easily

[Sachmle]

3 San Martin Class (1891) Armoured Cruiser

San Martin, USA Armoured Cruiser laid down 1891

Displacement:
   5,923 t light; 6,171 t standard; 7,403 t normal; 8,389 t full load

Dimensions: Length overall / water x beam x draught
   320.00 ft / 320.00 ft x 57.25 ft x 26.00 ft (normal load)
   97.54 m / 97.54 m x 17.45 m  x 7.92 m

Armament:
      4 - 8.00" / 203 mm guns in single mounts, 250.00lbs / 113.40kg shells, 1891 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      6 - 5.00" / 127 mm guns in single mounts, 60.00lbs / 27.22kg shells, 1891 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
     6 guns in hull casemates - Limited use in all but light seas
      4 - 5.00" / 127 mm guns in single mounts, 60.00lbs / 27.22kg shells, 1891 Model
     Quick firing guns in deck mounts
     on side ends, evenly spread
      10 - 2.36" / 60.0 mm guns in single mounts, 6.00lbs / 2.72kg shells, 1891 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 1,660 lbs / 753 kg
   Shells per gun, main battery: 100
   4 - 18.0" / 457.2 mm above water torpedoes, 2 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   8.25" / 210 mm   239.50 ft / 73.00 m   8.00 ft / 2.44 m
   Ends:   3.00" / 76 mm     80.50 ft / 24.54 m   6.00 ft / 1.83 m
   Upper:   4.00" / 102 mm   239.50 ft / 73.00 m   6.00 ft / 1.83 m
     Main Belt covers 115 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   8.00" / 203 mm   6.00" / 152 mm      8.00" / 203 mm
   2nd:   2.00" / 51 mm         -         4.00" / 102 mm
   3rd:   2.00" / 51 mm         -               -
   4th:   1.00" / 25 mm         -               -

   - Armour deck: 1.00" / 25 mm, Conning tower: 8.00" / 203 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 10,899 ihp / 8,130 Kw = 18.50 kts
   Range 9,500nm at 10.00 kts
   Bunker at max displacement = 2,218 tons (100% coal)

Complement:
   398 - 518

Cost:
   £0.665 million / $2.659 million

Distribution of weights at normal displacement:
   Armament: 214 tons, 2.9 %
   Armour: 1,699 tons, 23.0 %
      - Belts: 972 tons, 13.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 426 tons, 5.8 %
      - Armour Deck: 235 tons, 3.2 %
      - Conning Tower: 65 tons, 0.9 %
   Machinery: 1,982 tons, 26.8 %
   Hull, fittings & equipment: 1,977 tons, 26.7 %
   Fuel, ammunition & stores: 1,481 tons, 20.0 %
   Miscellaneous weights: 50 tons, 0.7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,036 lbs / 2,284 Kg = 19.7 x 8.0 " / 203 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.24
   Metacentric height 3.2 ft / 1.0 m
   Roll period: 13.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.26
   Seaboat quality  (Average = 1.00): 1.31

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.544
   Length to Beam Ratio: 5.59 : 1
   'Natural speed' for length: 17.89 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 46
   Bow angle (Positive = bow angles forward): -14.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      19.00 ft / 5.79 m
      - Forecastle (20 %):   19.00 ft / 5.79 m (12.00 ft / 3.66 m aft of break)
      - Mid (50 %):      12.00 ft / 3.66 m
      - Quarterdeck (18 %):   12.00 ft / 3.66 m
      - Stern:      12.00 ft / 3.66 m
      - Average freeboard:   13.40 ft / 4.08 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 113.9 %
      - Above water (accommodation/working, high = better): 64.9 %
   Waterplane Area: 12,714 Square feet or 1,181 Square metres
   Displacement factor (Displacement / loading): 100 %
   Structure weight / hull surface area: 98 lbs/sq ft or 476 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.89
      - Longitudinal: 2.69
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Good seaboat, rides out heavy weather easily

[Sachmle]

San Luis Class (1890) Protected Cruiser

San Luis, USA Protected Cruiser laid down 1890

Displacement:
   3,130 t light; 3,235 t standard; 4,200 t normal; 4,973 t full load

Dimensions: Length overall / water x beam x draught
   225.00 ft / 225.00 ft x 48.00 ft x 22.50 ft (normal load)
   68.58 m / 68.58 m x 14.63 m  x 6.86 m

Armament:
      2 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1890 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread
      4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1890 Model
     Quick firing guns in deck mounts
     on side, evenly spread
      4 - 2.00" / 50.8 mm guns in single mounts, 4.00lbs / 1.81kg shells, 1890 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 208 lbs / 94 kg
   Shells per gun, main battery: 150
   2 - 18.0" / 457.2 mm above water torpedoes, 2 - 18.0" / 457.2 mm submerged torpedo tubes

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

   - Armour deck: 2.50" / 64 mm, Conning tower: 6.50" / 165 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 9,547 ihp / 7,122 Kw = 18.50 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 1,738 tons (100% coal)

Complement:
   260 - 339

Cost:
   £0.379 million / $1.515 million

Distribution of weights at normal displacement:
   Armament: 26 tons, 0.6 %
   Armour: 418 tons, 10.0 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 15 tons, 0.4 %
      - Armour Deck: 367 tons, 8.7 %
      - Conning Tower: 36 tons, 0.9 %
   Machinery: 1,767 tons, 42.1 %
   Hull, fittings & equipment: 859 tons, 20.5 %
   Fuel, ammunition & stores: 1,070 tons, 25.5 %
   Miscellaneous weights: 60 tons, 1.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,451 lbs / 658 Kg = 45.3 x 4.0 " / 102 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.06
   Metacentric height 1.9 ft / 0.6 m
   Roll period: 14.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 92 %
         - Recoil effect (Restricted arc if above 1.00): 0.05
   Seaboat quality  (Average = 1.00): 0.92

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.605
   Length to Beam Ratio: 4.69 : 1
   'Natural speed' for length: 15.00 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 100
   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:      16.50 ft / 5.03 m
      - Forecastle (25 %):   16.50 ft / 5.03 m (10.50 ft / 3.20 m aft of break)
      - Mid (50 %):      10.50 ft / 3.20 m
      - Quarterdeck (15 %):   10.50 ft / 3.20 m
      - Stern:      10.50 ft / 3.20 m
      - Average freeboard:   12.00 ft / 3.66 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 152.8 %
      - Above water (accommodation/working, high = better): 55.3 %
   Waterplane Area: 7,936 Square feet or 737 Square metres
   Displacement factor (Displacement / loading): 99 %
   Structure weight / hull surface area: 68 lbs/sq ft or 330 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.87
      - Longitudinal: 3.68
      - 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
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

[Sachmle]

Rio Mendoza Class (1896) Gunboat

Rio Mendoza , USA River Gun Boat laid down 1896

Displacement:
   221 t light; 234 t standard; 270 t normal; 299 t full load

Dimensions: Length overall / water x beam x draught
   180.00 ft / 180.00 ft x 20.00 ft x 6.00 ft (normal load)
   54.86 m / 54.86 m x 6.10 m  x 1.83 m

Armament:
      2 - 3.00" / 76.2 mm guns in single mounts, 12.00lbs / 5.44kg shells, 1896 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread
      4 - 0.50" / 12.7 mm guns in single mounts, 0.05lbs / 0.02kg shells, 1896 Model
     Machine guns in deck mounts
     on side, all aft, all raised mounts - superfiring
      4 - 0.25" / 6.4 mm guns in single mounts, 0.01lbs / 0.00kg shells, 1896 Model
     Machine guns in deck mounts
     on side, all forward, all raised mounts - superfiring
   Weight of broadside 24 lbs / 11 kg
   Shells per gun, main battery: 600
   2 - 18.0" / 457.2 mm above water torpedoes

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

   - Conning tower: 1.00" / 25 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 3,251 ihp / 2,425 Kw = 22.00 kts
   Range 2,100nm at 10.00 kts
   Bunker at max displacement = 65 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   33 - 43

Cost:
   £0.032 million / $0.129 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 1.3 %
   Armour: 4 tons, 1.5 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 3 tons, 1.1 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 1 tons, 0.3 %
   Machinery: 155 tons, 57.2 %
   Hull, fittings & equipment: 51 tons, 18.7 %
   Fuel, ammunition & stores: 50 tons, 18.3 %
   Miscellaneous weights: 8 tons, 3.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     38 lbs / 17 Kg = 2.8 x 3.0 " / 76 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.17
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 10.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 55 %
         - Recoil effect (Restricted arc if above 1.00): 0.05
   Seaboat quality  (Average = 1.00): 0.55

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.438
   Length to Beam Ratio: 9.00 : 1
   'Natural speed' for length: 13.42 kts
   Power going to wave formation at top speed: 64 %
   Trim (Max stability = 0, Max steadiness = 100): 100
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      8.00 ft / 2.44 m
      - Forecastle (15 %):   8.00 ft / 2.44 m (4.00 ft / 1.22 m aft of break)
      - Mid (60 %):      4.00 ft / 1.22 m
      - Quarterdeck (25 %):   4.00 ft / 1.22 m
      - Stern:      4.00 ft / 1.22 m
      - Average freeboard:   4.60 ft / 1.40 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 199.8 %
      - Above water (accommodation/working, high = better): 37.7 %
   Waterplane Area: 2,274 Square feet or 211 Square metres
   Displacement factor (Displacement / loading): 24 %
   Structure weight / hull surface area: 15 lbs/sq ft or 75 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.54
      - Longitudinal: 0.53
      - Overall: 0.53
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is extremely poor
   Caution: Lacks seaworthiness - very limited seakeeping ability

[Sachmle]

Salado Class (1894) Torpedo Boat

Salado, USA River Torpedo Boat laid down 1900

Displacement:
   211 t light; 216 t standard; 255 t normal; 285 t full load

Dimensions: Length overall / water x beam x draught
   175.00 ft / 175.00 ft x 19.00 ft x 6.00 ft (normal load)
   53.34 m / 53.34 m x 5.79 m  x 1.83 m

Armament:
      2 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1900 Model
     Machine guns in deck mounts
     on centreline ends, evenly spread
      4 - 0.25" / 6.4 mm guns in single mounts, 0.01lbs / 0.00kg shells, 1900 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 1 lbs / 0 kg
   Shells per gun, main battery: 600
   2 - 18.0" / 457.2 mm above water torpedoes, 1 - 18.0" / 457.2 mm submerged torpedo tubes

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 3,849 ihp / 2,871 Kw = 23.00 kts
   Range 2,500nm at 10.00 kts
   Bunker at max displacement = 69 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   31 - 41

Cost:
   £0.029 million / $0.115 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.1 %
   Machinery: 152 tons, 59.5 %
   Hull, fittings & equipment: 44 tons, 17.3 %
   Fuel, ammunition & stores: 44 tons, 17.2 %
   Miscellaneous weights: 15 tons, 5.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     28 lbs / 12 Kg = 55.0 x 1.0 " / 25 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.07
   Metacentric height 0.5 ft / 0.1 m
   Roll period: 11.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 46 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 0.42

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.447
   Length to Beam Ratio: 9.21 : 1
   'Natural speed' for length: 13.23 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 100
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      8.00 ft / 2.44 m
      - Forecastle (15 %):   8.00 ft / 2.44 m (4.00 ft / 1.22 m aft of break)
      - Mid (60 %):      4.00 ft / 1.22 m
      - Quarterdeck (25 %):   4.00 ft / 1.22 m
      - Stern:      4.00 ft / 1.22 m
      - Average freeboard:   4.60 ft / 1.40 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 223.1 %
      - Above water (accommodation/working, high = better): 36.2 %
   Waterplane Area: 2,116 Square feet or 197 Square metres
   Displacement factor (Displacement / loading): 21 %
   Structure weight / hull surface area: 14 lbs/sq ft or 69 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.53
      - Longitudinal: 0.54
      - Overall: 0.53
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is extremely poor
   Room for accommodation and workspaces is extremely poor
   Caution: Lacks seaworthiness - very limited seakeeping ability

[P3D]

I'd decrease the river boat draft to 5'. Also, the Salado class is definitely inferior. Range is a bit excessive, but I guess upstream the gunboats would need higher cruising speed.
About the PDN: why the four 6" guns?

[Borys]

Dees big ribers, senor! El puerto de Asuncion take ship 9 feet deep all time, and 11 feet deep with high water.

http://www.annp.gov.py/p071.htm

I later found this, which probably is more extensive:
http://www1.unne.edu.ar/cyt/2002/01-Sociales/S-044.pdf

[Borys]

Ahoj!
More on USA river depths.
http://www.multimar.com/sailing.htm

Borys