WesWorld

ARA Corrientes (decommissioned for disposal Q2/43)
ARA Misiones (decommissioned for disposal Q2/43)
T-101, T-102 (both operated by Customs)

[sister ships Entre Rios, Py, Murature, Bathurst, Buchardo, Jorge, Thorne and Pinedo all war losses]


Corrientes Class, Argentina Torpedo Boat laid down 1931

Displacement:
484 t light; 501 t standard; 546 t normal; 583 t full load

Dimensions: Length overall / water x beam x draught
228.87 ft / 225.00 ft x 20.34 ft x 7.51 ft (normal load)
69.76 m / 68.58 m x 6.20 m x 2.29 m

Armament:
2 - 3.94" / 100 mm guns in single mounts, 30.42lbs / 13.80kg shells, 1917 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1931 Model
Anti-aircraft guns in deck mounts
on side, all amidships
6 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1931 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 68 lbs / 31 kg
Shells per gun, main battery: 130
4 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm -
2nd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 15,000 shp / 11,190 Kw = 30.06 kts
Range 2,000nm at 15.00 kts
Bunker at max displacement = 82 tons

Complement:
56 - 73

Cost:
£0.268 million / $1.072 million

Distribution of weights at normal displacement:
Armament: 9 tons, 1.6 %
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: 266 tons, 48.7 %
Hull, fittings & equipment: 186 tons, 34.1 %
Fuel, ammunition & stores: 62 tons, 11.3 %
Miscellaneous weights: 20 tons, 3.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
181 lbs / 82 Kg = 5.9 x 3.9 " / 100 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 0.5 ft / 0.2 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.34
Seaboat quality (Average = 1.00): 0.93

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.556
Length to Beam Ratio: 11.06 : 1
'Natural speed' for length: 16.89 kts
Power going to wave formation at top speed: 75 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.21 ft / 5.55 m
- Forecastle (18 %): 17.88 ft / 5.45 m
- Mid (32 %): 17.88 ft / 5.45 m (9.84 ft / 3.00 m aft of break)
- Quarterdeck (18 %): 9.84 ft / 3.00 m
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 12.44 ft / 3.79 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 173.1 %
- Above water (accommodation/working, high = better): 52.5 %
Waterplane Area: 3,345 Square feet or 311 Square metres
Displacement factor (Displacement / loading): 55 %
Structure weight / hull surface area: 22 lbs/sq ft or 107 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 5.26
- Overall: 0.63
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

ARA Indomita
ARA Intrepida
ARA Defencia
[ARA Alerta war loss]

Indomita Class, Argentina Torpedo Boat laid down 1932

Displacement:
788 t light; 819 t standard; 891 t normal; 949 t full load

Dimensions: Length overall / water x beam x draught
290.71 ft / 285.43 ft x 31.50 ft x 7.71 ft (normal load)
88.61 m / 87.00 m x 9.60 m x 2.35 m

Armament:
4 - 3.94" / 100 mm guns (2x2 guns), 28.66lbs / 13.00kg shells, 1932 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on centreline, evenly spread, all raised mounts
4 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 122 lbs / 55 kg
Shells per gun, main battery: 180
4 - 21.0" / 533.4 mm above water torpedoes

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 22,000 shp / 16,412 Kw = 32.00 kts
Range 2,500nm at 15.00 kts
Bunker at max displacement = 130 tons

Complement:
81 - 106

Cost:
£0.461 million / $1.845 million

Distribution of weights at normal displacement:
Armament: 16 tons, 1.8 %
Armour: 5 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 431 tons, 48.3 %
Hull, fittings & equipment: 301 tons, 33.8 %
Fuel, ammunition & stores: 103 tons, 11.6 %
Miscellaneous weights: 35 tons, 3.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
335 lbs / 152 Kg = 11.0 x 3.9 " / 100 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.29
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.2 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.13
Seaboat quality (Average = 1.00): 0.80

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 9.06 : 1
'Natural speed' for length: 19.56 kts
Power going to wave formation at top speed: 71 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 18.37 ft / 5.60 m
- Mid (40 %): 18.37 ft / 5.60 m (10.66 ft / 3.25 m aft of break)
- Quarterdeck (13 %): 10.66 ft / 3.25 m
- Stern: 10.66 ft / 3.25 m
- Average freeboard: 13.85 ft / 4.22 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 174.5 %
- Above water (accommodation/working, high = better): 125.9 %
Waterplane Area: 5,957 Square feet or 553 Square metres
Displacement factor (Displacement / loading): 61 %
Structure weight / hull surface area: 28 lbs/sq ft or 136 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.38
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

***

Indomita Class, Argentina Torpedo Boat laid down 1932

Displacement:
792 t light; 819 t standard; 891 t normal; 949 t full load

Dimensions: Length overall / water x beam x draught
290.71 ft / 285.43 ft x 31.50 ft x 7.71 ft (normal load)
88.61 m / 87.00 m x 9.60 m x 2.35 m

Armament:
6 - 2.17" / 55.0 mm guns (3x2 guns), 5.08lbs / 2.30kg shells, 1947 Model
Anti-aircraft guns in deck mounts
on centreline, evenly spread, 1 raised mount
Aft Main mounts separated by engine room
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, all aft, all raised mounts - superfiring
Weight of broadside 31 lbs / 14 kg
Shells per gun, main battery: 500

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm 0.59" / 15 mm -
2nd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 22,000 shp / 16,412 Kw = 32.00 kts
Range 2,500nm at 15.00 kts
Bunker at max displacement = 130 tons

Complement:
81 - 106

Cost:
£0.430 million / $1.721 million

Distribution of weights at normal displacement:
Armament: 4 tons, 0.4 %
Armour: 5 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 455 tons, 51.0 %
Hull, fittings & equipment: 288 tons, 32.4 %
Fuel, ammunition & stores: 99 tons, 11.2 %
Miscellaneous weights: 40 tons, 4.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
336 lbs / 152 Kg = 66.2 x 2.2 " / 55 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.30
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.1 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 0.80

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 9.06 : 1
'Natural speed' for length: 19.56 kts
Power going to wave formation at top speed: 71 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 18.37 ft / 5.60 m
- Mid (40 %): 18.37 ft / 5.60 m (10.66 ft / 3.25 m aft of break)
- Quarterdeck (13 %): 10.66 ft / 3.25 m
- Stern: 10.66 ft / 3.25 m
- Average freeboard: 13.85 ft / 4.22 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 173.8 %
- Above water (accommodation/working, high = better): 181.6 %
Waterplane Area: 5,957 Square feet or 553 Square metres
Displacement factor (Displacement / loading): 65 %
Structure weight / hull surface area: 27 lbs/sq ft or 130 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.24
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

1948 Refit Notes
Twin 100mm DP and 37mm mounts replaced by twin 55mm AA mounts
Single 20mm mounts replaced by new twin mounts
Torpedo tubes removed
Langhiri-Florisson Asdic added
Refurbishment of internal fittings for life extension

Misc Weight
10 tons for German HA/LA director with FC RDF
5 tons for Chilean surface search RDF set
15 tons for one DCR and two DCT for 20x DC
10 tons for Asdic

ARA Baradero

Project 451 Indomita II Class, Argentina Torpedo Boat laid down 1937

Displacement:
788 t light; 822 t standard; 891 t normal; 947 t full load

Dimensions: Length overall / water x beam x draught
290.71 ft / 285.43 ft x 31.50 ft x 7.71 ft (normal load)
88.61 m / 87.00 m x 9.60 m x 2.35 m

Armament:
4 - 3.94" / 100 mm guns (2x2 guns), 30.42lbs / 13.80kg shells, 1933 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread
6 - 1.46" / 37.0 mm guns (3x2 guns), 1.55lbs / 0.70kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, all aft, all raised mounts - superfiring
12 - 0.79" / 20.0 mm guns (2x6 guns), 0.24lbs / 0.11kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, all forward, all raised mounts - superfiring
Weight of broadside 134 lbs / 61 kg
Shells per gun, main battery: 200
4 - 23.6" / 600 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm -
2nd: 0.39" / 10 mm - -
3rd: 0.47" / 12 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 22,000 shp / 16,412 Kw = 32.00 kts
Range 2,500nm at 15.00 kts
Bunker at max displacement = 125 tons

Complement:
81 - 106

Cost:
£0.548 million / $2.193 million

Distribution of weights at normal displacement:
Armament: 17 tons, 1.9 %
Armour: 8 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 8 tons, 0.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 420 tons, 47.2 %
Hull, fittings & equipment: 303 tons, 34.0 %
Fuel, ammunition & stores: 103 tons, 11.6 %
Miscellaneous weights: 40 tons, 4.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
342 lbs / 155 Kg = 11.2 x 3.9 " / 100 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.3 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.15
Seaboat quality (Average = 1.00): 0.80

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 9.06 : 1
'Natural speed' for length: 19.56 kts
Power going to wave formation at top speed: 71 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 18.37 ft / 5.60 m
- Mid (40 %): 18.37 ft / 5.60 m (10.66 ft / 3.25 m aft of break)
- Quarterdeck (13 %): 10.66 ft / 3.25 m
- Stern: 10.66 ft / 3.25 m
- Average freeboard: 13.85 ft / 4.22 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 172.1 %
- Above water (accommodation/working, high = better): 111.2 %
Waterplane Area: 5,957 Square feet or 553 Square metres
Displacement factor (Displacement / loading): 64 %
Structure weight / hull surface area: 28 lbs/sq ft or 137 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.39
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Indomita II features additional twin 37mm mount, two sextuple 20mm mounts, 200rpg for 100mm, HACS Mk 10, 600mm torpedoes, four DCT and two racks (40 DC total) and Langhiri-Florisson ASDIC

ARA Corrientes
ARA Misiones

Project 454 Corrientes Class, Argentina Torpedo Boat laid down 1942

Displacement:
960 t light; 1,020 t standard; 1,096 t normal; 1,156 t full load

Dimensions: Length overall / water x beam x draught
315.44 ft / 311.68 ft x 31.50 ft x 8.53 ft (normal load)
96.15 m / 95.00 m x 9.60 m x 2.60 m

Armament:
6 - 4.53" / 115 mm guns (3x2 guns), 55.12lbs / 25.00kg shells, 1933 Model
Quick firing guns in deck mounts
on centreline ends, majority forward, 1 raised mount - superfiring
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, all aft, all raised mounts - superfiring
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1940 Model
Anti-aircraft guns in deck mount
on centreline amidships, all raised guns - superfiring
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, all forward
Weight of broadside 341 lbs / 154 kg
Shells per gun, main battery: 200
4 - 23.6" / 600 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm -
2nd: 0.59" / 15 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 22,500 shp / 16,785 Kw = 31.55 kts
Range 2,500nm at 15.00 kts
Bunker at max displacement = 136 tons

Complement:
94 - 123

Cost:
£0.808 million / $3.231 million

Distribution of weights at normal displacement:
Armament: 36 tons, 3.3 %
Armour: 15 tons, 1.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 15 tons, 1.3 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 451 tons, 41.1 %
Hull, fittings & equipment: 397 tons, 36.2 %
Fuel, ammunition & stores: 136 tons, 12.4 %
Miscellaneous weights: 62 tons, 5.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
454 lbs / 206 Kg = 9.8 x 4.5 " / 115 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0.43
Seaboat quality (Average = 1.00): 1.09

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.458
Length to Beam Ratio: 9.90 : 1
'Natural speed' for length: 20.27 kts
Power going to wave formation at top speed: 68 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 21.33 ft / 6.50 m
- Forecastle (20 %): 19.69 ft / 6.00 m
- Mid (40 %): 19.69 ft / 6.00 m (11.81 ft / 3.60 m aft of break)
- Quarterdeck (13 %): 11.81 ft / 3.60 m
- Stern: 11.81 ft / 3.60 m
- Average freeboard: 15.09 ft / 4.60 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 165.5 %
- Above water (accommodation/working, high = better): 121.2 %
Waterplane Area: 6,549 Square feet or 608 Square metres
Displacement factor (Displacement / loading): 71 %
Structure weight / hull surface area: 31 lbs/sq ft or 149 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.85
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

Class Names: Corrientes, Misiones

Misc weight
12 tons for torpedo gear (including four 600mm torpedoes and qaud mount)
20 tons for extra habitibility for crew comfort
15 tons for one DCR and two DCT for 20 DC
15 tons for growth

1948 Refit Notes
Addition of Chilean surface search RDF set
Splinter protection added to all LAA mounts