Armada Torpedo Boats

[Jefgte]

250T-Mancora class, Peru Torpedo boat laid down 1897

All scrapped in 1914H2

Mancora - 1897
Punta Sal - 1897
Tacna - 1898
Paracas - 1898
Ilo - 1899
Huacho - 1899
Talara - 1900
Paita - 1900

Displacement:
   250 t light; 261 t standard; 290 t normal; 313 t full load

Dimensions: Length overall / water x beam x draught
   184.06 ft / 177.17 ft x 19.69 ft x 7.37 ft (normal load)
   56.10 m / 54.00 m x 6.00 m  x 2.25 m

Armament:
      2 - 3.00" / 76.2 mm guns in single mounts, 12.00lbs / 5.44kg shells, 1897 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread
      1 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1897 Model
     Quick firing gun in deck mount
     on centreline amidships
      2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1897 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 38 lbs / 17 kg
   Shells per gun, main battery: 250
   2 - 18.0" / 457.2 mm above water torpedoes

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

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 2 797 ihp / 2 086 Kw = 21.09 kts
   Range 1 600nm at 10.00 kts
   Bunker at max displacement = 51 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   34 - 45

Cost:
   £0.035 million / $0.140 million

Distribution of weights at normal displacement:
   Armament: 5 tons, 1.8 %
   Armour: 2 tons, 0.8 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 2 tons, 0.8 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 158 tons, 54.3 %
   Hull, fittings & equipment: 69 tons, 23.7 %
   Fuel, ammunition & stores: 40 tons, 13.8 %
   Miscellaneous weights: 16 tons, 5.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     66 lbs / 30 Kg = 4.9 x 3.0 " / 76 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.41
   Metacentric height 0.8 ft / 0.2 m
   Roll period: 9.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.15
   Seaboat quality  (Average = 1.00): 1.24

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.395
   Length to Beam Ratio: 9.00 : 1
   'Natural speed' for length: 13.31 kts
   Power going to wave formation at top speed: 61 %
   Trim (Max stability = 0, Max steadiness = 100): 57
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 6.89 ft / 2.10 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      8.53 ft / 2.60 m
      - Forecastle (18 %):   9.84 ft / 3.00 m
      - Mid (50 %):      6.89 ft / 2.10 m
      - Quarterdeck (18 %):   6.89 ft / 2.10 m
      - Stern:      6.89 ft / 2.10 m
      - Average freeboard:   7.80 ft / 2.38 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 195.5 %
      - Above water (accommodation/working, high = better): 64.9 %
   Waterplane Area: 2 141 Square feet or 199 Square metres
   Displacement factor (Displacement / loading): 30 %
   Structure weight / hull surface area: 17 lbs/sq ft or 83 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.73
      - Overall: 0.56
   Caution: Hull subject to strain in open-sea
   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

[Jefgte]

After 1912 refit, all were affected to Coastal Protection
Calama - 1902
Tocopilla - 1902
Iquique - 1904
Pisagua - 1904



450T, Peru Torpedo boat laid down 1902

Displacement:
   450 t light; 463 t standard; 559 t normal; 636 t full load

Dimensions: Length overall / water x beam x draught
   223.10 ft / 223.10 ft x 25.26 ft x 8.39 ft (normal load)
   68.00 m / 68.00 m x 7.70 m  x 2.56 m

Armament:
     2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1902 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread
     2 - 2.00" / 50.8 mm guns in single mounts, 4.00lbs / 1.81kg shells, 1902 Model
     Quick firing guns in deck mounts
     on centreline, all amidships
     2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1902 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 35 lbs / 16 kg
   Shells per gun, main battery: 120
   2 - 18.0" / 457.2 mm above water torpedoes

Armour:
  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm         -               -
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.50" / 13 mm         -               -

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 3 881 ihp / 2 895 Kw = 21.15 kts
   Range 4 500nm at 10.00 kts
   Bunker at max displacement = 173 tons (75% coal)

Complement:
   56 - 74

Cost:
   £0.060 million / $0.240 million

Distribution of weights at normal displacement:
   Armament: 4 tons, 0.8 %
   Armour: 4 tons, 0.7 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 4 tons, 0.7 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 290 tons, 51.8 %
   Hull, fittings & equipment: 123 tons, 22.0 %
   Fuel, ammunition & stores: 110 tons, 19.6 %
   Miscellaneous weights: 28 tons, 5.0 %                    
                - 22 t:  Weight Reserve
                - 7 t:  20 Depth Charges or 6 Mines




Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     171 lbs / 77 Kg = 12.6 x 3.0 " / 76 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.67
   Metacentric height 1.5 ft / 0.5 m
   Roll period: 8.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 82 %
         - Recoil effect (Restricted arc if above 1.00): 0.06
   Seaboat quality  (Average = 1.00): 1.64

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.414
   Length to Beam Ratio: 8.83 : 1
   'Natural speed' for length: 14.94 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: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      10.83 ft / 3.30 m
      - Forecastle (18 %):   12.80 ft / 3.90 m
      - Mid (50 %):      8.53 ft / 2.60 m
      - Quarterdeck (18 %):   8.53 ft / 2.60 m
      - Stern:      8.53 ft / 2.60 m
      - Average freeboard:   9.83 ft / 3.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 178.7 %
      - Above water (accommodation/working, high = better): 93.7 %
   Waterplane Area: 3 499 Square feet or 325 Square metres
   Displacement factor (Displacement / loading): 46 %
   Structure weight / hull surface area: 20 lbs/sq ft or 95 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.49
      - Overall: 0.56
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Jefgte]

Caravani - 1905
El Alto - 1906
Sucre - 1906
Cochabamba - 1907
Potosi - 1908
Oruro - 1909
Montero - 1909
Trinitad  - 1910



750T, Peru DD laid down 1905 (Engine 1906)

Displacement:
   750 t light; 782 t standard; 909 t normal; 1 010 t full load

Dimensions: Length overall / water x beam x draught
   288.71 ft / 288.71 ft x 29.53 ft x 9.24 ft (normal load)
   88.00 m / 88.00 m x 9.00 m  x 2.82 m

Armament:
      2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1905 Model
     Breech loading guns in deck mounts
     on centreline, evenly spread
      1 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1905 Model
     Breech loading gun in deck mount
     on centreline amidships, 1 raised gun
      2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1905 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1905 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 185 lbs / 84 kg
   Shells per gun, main battery: 120
   4 - 18.0" / 457.2 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm         -               -
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 8 771 shp / 6 543 Kw = 24.79 kts
   Range 5 000nm at 10.00 kts
   Bunker at max displacement = 229 tons

Complement:
   82 - 107

Cost:
   £0.102 million / $0.406 million

Distribution of weights at normal displacement:
   Armament: 23 tons, 2.5 %
   Armour: 9 tons, 1.0 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 9 tons, 1.0 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 399 tons, 43.9 %
   Hull, fittings & equipment: 249 tons, 27.4 %
   Fuel, ammunition & stores: 159 tons, 17.5 %
   Miscellaneous weights: 70 tons, 7.7 %
                 - 25 t:  fire control
                 - 25t: Marconi
                 - 13 t: Weight Reserve
                 - 7 t:  20 Depth Charges or 6 mines




Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     303 lbs / 137 Kg = 5.7 x 4.7 " / 120 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.32
   Metacentric height 1.3 ft / 0.4 m
   Roll period: 10.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.36
   Seaboat quality  (Average = 1.00): 1.69

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.404
   Length to Beam Ratio: 9.78 : 1
   'Natural speed' for length: 16.99 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      17.72 ft / 5.40 m
      - Forecastle (18 %):   13.45 ft / 4.10 m
      - Mid (50 %):      11.48 ft / 3.50 m
      - Quarterdeck (18 %):   10.83 ft / 3.30 m
      - Stern:      10.83 ft / 3.30 m
      - Average freeboard:   12.22 ft / 3.73 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 169.5 %
      - Above water (accommodation/working, high = better): 97.7 %
   Waterplane Area: 5 260 Square feet or 489 Square metres
   Displacement factor (Displacement / loading): 65 %
   Structure weight / hull surface area: 25 lbs/sq ft or 124 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.64
      - Overall: 0.56
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Jefgte]

Arica - 1912
Mejilones - 1912
Captain Marcona (ex Chimbote) - 1913
Pisco - 1913
Camiri - 1914
Guaqui - 1914


1000T, Peru DD laid down 1912 (Engine 1912)

Displacement:
   1 000 t light; 1 038 t standard; 1 184 t normal; 1 301 t full load

Dimensions: Length overall / water x beam x draught
   318.24 ft / 318.24 ft x 34.12 ft x 9.54 ft (normal load)
   97.00 m / 97.00 m x 10.40 m  x 2.91 m

Armament:
      2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1912 Model
     Breech loading guns in deck mounts
     on centreline, evenly spread
      1 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1912 Model
     Breech loading gun in deck mount
     on centreline amidships, 1 raised gun
      2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1912 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1912 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 185 lbs / 84 kg
   Shells per gun, main battery: 120
   6 - 18.0" / 457 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm         -               -
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 18 800 shp / 14 025 Kw = 28.94 kts
   Range 7 000nm at 10.00 kts
   Bunker at max displacement = 263 tons

Complement:
   100 - 131

Cost:
   £0.131 million / $0.524 million

Distribution of weights at normal displacement:
   Armament: 23 tons, 2.0 %
   Armour: 9 tons, 0.7 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 9 tons, 0.7 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 547 tons, 46.2 %
   Hull, fittings & equipment: 341 tons, 28.8 %
   Fuel, ammunition & stores: 184 tons, 15.5 %
   Miscellaneous weights: 80 tons, 6.8 %
                 - 25 t:  Fire control
                 - 25 t:  Marconi
                 - 20 t:  Weight Reserve
                 - 10 t:  30 Depth Charges or 10 mines


Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     402 lbs / 183 Kg = 7.6 x 4.7 " / 120 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.33
   Metacentric height 1.7 ft / 0.5 m
   Roll period: 11.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 78 %
         - Recoil effect (Restricted arc if above 1.00): 0.19
   Seaboat quality  (Average = 1.00): 1.22

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.400
   Length to Beam Ratio: 9.33 : 1
   'Natural speed' for length: 17.84 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 64
   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:      19.36 ft / 5.90 m
      - Forecastle (18 %):   14.76 ft / 4.50 m
      - Mid (50 %):      12.47 ft / 3.80 m
      - Quarterdeck (18 %):   12.47 ft / 3.80 m
      - Stern:      12.47 ft / 3.80 m
      - Average freeboard:   13.58 ft / 4.14 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 171.4 %
      - Above water (accommodation/working, high = better): 102.8 %
   Waterplane Area: 6 684 Square feet or 621 Square metres
   Displacement factor (Displacement / loading): 68 %
   Structure weight / hull surface area: 29 lbs/sq ft or 141 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.58
      - Overall: 0.56
   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

[Jefgte]

Putre - 1916 - com 7 1917
Robore - 1916 - com 7 1917
Pica - 1916 - com 8 1917
Lima - 1916 - com 8 1917



1000T, Peru DD laid down 1916 (Engine 1912)

Displacement:
  1 000 t light; 1 047 t standard; 1 216 t normal; 1 350 t full load

Dimensions: Length overall / water x beam x draught
  357.34 ft / 354.33 ft x 29.53 ft x 10.43 ft (normal load)
  108.92 m / 108.00 m x 9.00 m  x 3.18 m

Armament:
     2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1916 Model
    Breech loading guns in deck mounts
    on centreline, evenly spread
     1 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1916 Model
    Breech loading gun in deck mount
    on centreline amidships
     2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1916 Model
    Quick firing guns in deck mounts
    on side, all amidships, all raised mounts - superfiring
     2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1916 Model
    Machine guns in deck mounts
    on side, evenly spread
  Weight of broadside 185 lbs / 84 kg
  Shells per gun, main battery: 200
  6 - 21.0" / 533.4 mm above water torpedoes

Armour:
  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
  Main:   0.79" / 20 mm         -               -
  2nd:   0.79" / 20 mm         -               -
  3rd:   0.50" / 13 mm         -               -
  4th:   0.50" / 13 mm         -               -

Machinery:
  Oil fired boilers, steam turbines,
  Geared drive, 2 shafts, 24 000 shp / 17 904 Kw = 31.29 kts
  Range 5 000nm at 12.00 kts
  Bunker at max displacement = 303 tons
  Trial speed = 33.5kts

Complement:
  102 - 133

Cost:
  £0.232 million / $0.927 million

Distribution of weights at normal displacement:
  Armament: 23 tons, 1.9 %
  Armour: 8 tons, 0.6 %
     - Belts: 0 tons, 0.0 %
     - Torpedo bulkhead: 0 tons, 0.0 %
     - Armament: 8 tons, 0.6 %
     - Armour Deck: 0 tons, 0.0 %
     - Conning Tower: 0 tons, 0.0 %
  Machinery: 622 tons, 51.2 %
  Hull, fittings & equipment: 307 tons, 25.2 %
  Fuel, ammunition & stores: 216 tons, 17.7 %
  Miscellaneous weights: 40 tons, 3.3 %
   -12 t:  6 Torpedoes reserve
   -18 t:  Weight Reserve
   -10 t:  30 Depth Charges or 10 mines

Overall survivability and seakeeping ability:
  Survivability (Non-critical penetrating hits needed to sink ship):
    297 lbs / 135 Kg = 5.6 x 4.7 " / 120 mm shells or 0.2 torpedoes
  Stability (Unstable if below 1.00): 1.42
  Metacentric height 1.5 ft / 0.5 m
  Roll period: 10.2 seconds
  Steadiness   - As gun platform (Average = 50 %): 73 %
        - Recoil effect (Restricted arc if above 1.00): 0.20
  Seaboat quality  (Average = 1.00): 1.05

Hull form characteristics:
  Hull has a flush deck
  Block coefficient: 0.390
  Length to Beam Ratio: 12.00 : 1
  'Natural speed' for length: 18.82 kts
  Power going to wave formation at top speed: 60 %
  Trim (Max stability = 0, Max steadiness = 100): 69
  Bow angle (Positive = bow angles forward): 10.00 degrees
  Stern overhang: 0.00 ft / 0.00 m
  Freeboard (% = measuring location as a percentage of overall length):
     - Stem:      17.06 ft / 5.20 m
     - Forecastle (18 %):   12.47 ft / 3.80 m
     - Mid (50 %):      10.50 ft / 3.20 m
     - Quarterdeck (17 %):   9.84 ft / 3.00 m
     - Stern:      9.19 ft / 2.80 m
     - Average freeboard:   11.22 ft / 3.42 m
  Ship tends to be wet forward

Ship space, strength and comments:
  Space   - Hull below water (magazines/engines, low = better): 183.9 %
     - Above water (accommodation/working, high = better): 78.3 %
  Waterplane Area: 6 407 Square feet or 595 Square metres
  Displacement factor (Displacement / loading): 57 %
  Structure weight / hull surface area: 27 lbs/sq ft or 130 Kg/sq metre
  Hull strength (Relative):
     - Cross-sectional: 0.50
     - Longitudinal: 0.92
     - Overall: 0.53
  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