Armada Scout Cruisers

[Jefgte]

2000T SC , Peru Scout Cruiser - Choapa class laid down 1897 (Engine 1898)

Choapa - 1897
Atacama - 1898
Loreto - 1899
Puira - 1900



All the class was scrapped in 1916H1

Displacement:
   2 000 t light; 2 073 t standard; 2 321 t normal; 2 520 t full load

Dimensions: Length overall / water x beam x draught
   393.70 ft / 393.70 ft x 43.96 ft x 11.07 ft (normal load)
   120.00 m / 120.00 m x 13.40 m  x 3.37 m

Armament:
      2 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1897 Model
     Breech loading guns in deck mounts
     on centreline, evenly spread
      4 - 3.54" / 90.0 mm guns in single mounts, 22.24lbs / 10.09kg shells, 1897 Model
     Breech loading guns in deck mounts
     on side, evenly spread
      4 - 3.54" / 90.0 mm guns in single mounts, 22.24lbs / 10.09kg shells, 1897 Model
     Breech loading guns in deck mounts
     on side, all 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 283 lbs / 129 kg
   Shells per gun, main battery: 140
   2 - 18.0" / 457.2 mm submerged torpedo tubes

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         -               -

   - Armour deck: 0.79" / 20 mm, Conning tower: 0.79" / 20 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 5 045 ihp / 3 764 Kw = 18.82 kts
   Range 4 000nm at 10.00 kts
   Bunker at max displacement = 447 tons (100% coal)

Complement:
   166 - 217

Cost:
   £0.214 million / $0.855 million

Distribution of weights at normal displacement:
   Armament: 35 tons, 1.5 %
   Armour: 177 tons, 7.6 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 16 tons, 0.7 %
      - Armour Deck: 158 tons, 6.8 %
      - Conning Tower: 3 tons, 0.1 %
   Machinery: 814 tons, 35.1 %
   Hull, fittings & equipment: 925 tons, 39.8 %
   Fuel, ammunition & stores: 321 tons, 13.8 %
   Miscellaneous weights: 50 tons, 2.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2 134 lbs / 968 Kg = 40.5 x 4.7 " / 120 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.56
   Metacentric height 3.1 ft / 0.9 m
   Roll period: 10.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 80 %
         - Recoil effect (Restricted arc if above 1.00): 0.08
   Seaboat quality  (Average = 1.00): 1.60

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.424
   Length to Beam Ratio: 8.96 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 36 %
   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:      15.09 ft / 4.60 m
      - Forecastle (18 %):   13.12 ft / 4.00 m
      - Mid (30 %):      12.14 ft / 3.70 m
      - Quarterdeck (18 %):   12.14 ft / 3.70 m
      - Stern:      12.14 ft / 3.70 m
      - Average freeboard:   12.51 ft / 3.81 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 133.4 %
      - Above water (accommodation/working, high = better): 151.9 %
   Waterplane Area: 10 821 Square feet or 1 005 Square metres
   Displacement factor (Displacement / loading): 109 %
   Structure weight / hull surface area: 58 lbs/sq ft or 285 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.18
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather