ARA Contra Almirante Barbera
ARA Simon Bolivar
Future Destroyer Class, Argentina Destroyer laid down 1933
Displacement:
1,569 t light; 1,654 t standard; 1,894 t normal; 2,086 t full load
Dimensions: Length overall / water x beam x draught
385.06 ft / 377.30 ft x 35.43 ft x 12.30 ft (normal load)
117.37 m / 115.00 m x 10.80 m x 3.75 m
Armament:
6 - 4.53" / 115 mm guns (3x2 guns), 55.12lbs / 25.00kg shells, 1933 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 2 raised mounts - superfiring
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mount
on centreline amidships, all raised guns - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 342 lbs / 155 kg
Shells per gun, main battery: 240
6 - 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 0.79" / 20 mm
2nd: 0.39" / 10 mm - -
3rd: 0.47" / 12 mm - -
- Conning tower: 1.97" / 50 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 34,353 shp / 25,628 Kw = 33.26 kts
Range 5,500nm at 15.00 kts
Bunker at max displacement = 432 tons
Complement:
143 - 186
Cost:
£0.979 million / $3.914 million
Distribution of weights at normal displacement:
Armament: 36 tons, 1.9 %
Armour: 21 tons, 1.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 14 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.3 %
Machinery: 869 tons, 45.9 %
Hull, fittings & equipment: 578 tons, 30.5 %
Fuel, ammunition & stores: 325 tons, 17.1 %
Miscellaneous weights: 65 tons, 3.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
601 lbs / 273 Kg = 13.0 x 4.5 " / 115 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.34
Metacentric height 1.8 ft / 0.5 m
Roll period: 11.2 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.48
Seaboat quality (Average = 1.00): 1.03
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.403
Length to Beam Ratio: 10.65 : 1
'Natural speed' for length: 22.34 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 20.00 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 (43 %): 19.69 ft / 6.00 m (10.66 ft / 3.25 m aft of break)
- Quarterdeck (15 %): 10.66 ft / 3.25 m
- Stern: 10.66 ft / 3.25 m
- Average freeboard: 14.67 ft / 4.47 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 167.9 %
- Above water (accommodation/working, high = better): 96.1 %
Waterplane Area: 8,555 Square feet or 795 Square metres
Displacement factor (Displacement / loading): 80 %
Structure weight / hull surface area: 36 lbs/sq ft or 178 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.52
- Overall: 0.55
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
1944 Refit Notes
Replacement of sextuple 20mm mount with a twin M1944 37mm mount
Replacement of twin 37mm mounts with new M1944 twin mounts
Replacement of single 20mm with twin 20mm mounts
***
1944 Refit
Future Destroyer Class, Argentina Destroyer laid down 1933
Displacement:
1,569 t light; 1,654 t standard; 1,894 t normal; 2,086 t full load
Dimensions: Length overall / water x beam x draught
385.06 ft / 377.30 ft x 35.43 ft x 12.30 ft (normal load)
117.37 m / 115.00 m x 10.80 m x 3.75 m
Armament:
6 - 4.53" / 115 mm guns (3x2 guns), 55.12lbs / 25.00kg shells, 1933 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 2 raised mounts - superfiring
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mount
on centreline amidships, all raised guns - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 342 lbs / 155 kg
Shells per gun, main battery: 240
6 - 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 0.79" / 20 mm
2nd: 0.39" / 10 mm - -
3rd: 0.47" / 12 mm - -
- Conning tower: 1.97" / 50 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 34,353 shp / 25,628 Kw = 33.26 kts
Range 5,500nm at 15.00 kts
Bunker at max displacement = 432 tons
Complement:
143 - 186
Cost:
£0.979 million / $3.914 million
Distribution of weights at normal displacement:
Armament: 36 tons, 1.9 %
Armour: 21 tons, 1.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 14 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.3 %
Machinery: 869 tons, 45.9 %
Hull, fittings & equipment: 578 tons, 30.5 %
Fuel, ammunition & stores: 325 tons, 17.1 %
Miscellaneous weights: 65 tons, 3.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
601 lbs / 273 Kg = 13.0 x 4.5 " / 115 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.34
Metacentric height 1.8 ft / 0.5 m
Roll period: 11.2 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.48
Seaboat quality (Average = 1.00): 1.03
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.403
Length to Beam Ratio: 10.65 : 1
'Natural speed' for length: 22.34 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 20.00 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 (43 %): 19.69 ft / 6.00 m (10.66 ft / 3.25 m aft of break)
- Quarterdeck (15 %): 10.66 ft / 3.25 m
- Stern: 10.66 ft / 3.25 m
- Average freeboard: 14.67 ft / 4.47 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 167.9 %
- Above water (accommodation/working, high = better): 96.1 %
Waterplane Area: 8,555 Square feet or 795 Square metres
Displacement factor (Displacement / loading): 80 %
Structure weight / hull surface area: 36 lbs/sq ft or 178 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.52
- Overall: 0.55
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
1944 Refit Notes
Replacement of sextuple 20mm mount with a twin M1944 37mm mount
Replacement of twin 37mm mounts with new M1944 twin mounts
Replacement of single 20mm with twin 20mm mounts
******
1936 Class
ARA Capitan Tejada
ARA Lynch
ARA Parker
Project 417 1936 Class, Argentina Destroyer laid down 1936
Displacement:
1,570 t light; 1,660 t standard; 1,894 t normal; 2,081 t full load
Dimensions: Length overall / water x beam x draught
385.06 ft / 377.30 ft x 35.43 ft x 12.30 ft (normal load)
117.37 m / 115.00 m x 10.80 m x 3.75 m
Armament:
6 - 4.53" / 115 mm guns (3x2 guns), 55.00lbs / 24.95kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 2 raised mounts - superfiring
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 338 lbs / 153 kg
Shells per gun, main battery: 275
8 - 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 0.79" / 20 mm
2nd: 0.47" / 12 mm - -
3rd: 0.39" / 10 mm - -
- Conning tower: 0.98" / 25 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 34,509 shp / 25,743 Kw = 33.30 kts
Range 5,500nm at 15.00 kts
Bunker at max displacement = 420 tons
Complement:
143 - 186
Cost:
£1.077 million / $4.310 million
Distribution of weights at normal displacement:
Armament: 36 tons, 1.9 %
Armour: 18 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 15 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 852 tons, 45.0 %
Hull, fittings & equipment: 579 tons, 30.6 %
Fuel, ammunition & stores: 324 tons, 17.1 %
Miscellaneous weights: 85 tons, 4.5 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
605 lbs / 275 Kg = 13.0 x 4.5 " / 115 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.30
Metacentric height 1.7 ft / 0.5 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.49
Seaboat quality (Average = 1.00): 1.02
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.403
Length to Beam Ratio: 10.65 : 1
'Natural speed' for length: 22.34 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 20.00 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 (43 %): 19.69 ft / 6.00 m (10.66 ft / 3.25 m aft of break)
- Quarterdeck (15 %): 10.66 ft / 3.25 m
- Stern: 10.66 ft / 3.25 m
- Average freeboard: 14.67 ft / 4.47 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 166.4 %
- Above water (accommodation/working, high = better): 75.5 %
Waterplane Area: 8,555 Square feet or 795 Square metres
Displacement factor (Displacement / loading): 81 %
Structure weight / hull surface area: 36 lbs/sq ft or 178 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.52
- Overall: 0.56
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
1944 Refit Notes
Replacement of two sextuple 20mm mounts with two twin M1944 37mm mounts
Replacement of single 20mm with twin 20mm mounts
***
1944 Refit
Project 417 1936 Class, Argentina Destroyer laid down 1936
Displacement:
1,570 t light; 1,660 t standard; 1,894 t normal; 2,081 t full load
Dimensions: Length overall / water x beam x draught
385.06 ft / 377.30 ft x 35.43 ft x 12.30 ft (normal load)
117.37 m / 115.00 m x 10.80 m x 3.75 m
Armament:
6 - 4.53" / 115 mm guns (3x2 guns), 55.00lbs / 24.95kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 2 raised mounts - superfiring
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 338 lbs / 153 kg
Shells per gun, main battery: 275
8 - 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 0.79" / 20 mm
2nd: 0.47" / 12 mm - -
3rd: 0.39" / 10 mm - -
- Conning tower: 0.98" / 25 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 34,509 shp / 25,743 Kw = 33.30 kts
Range 5,500nm at 15.00 kts
Bunker at max displacement = 420 tons
Complement:
143 - 186
Cost:
£1.077 million / $4.310 million
Distribution of weights at normal displacement:
Armament: 36 tons, 1.9 %
Armour: 18 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 15 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 852 tons, 45.0 %
Hull, fittings & equipment: 579 tons, 30.6 %
Fuel, ammunition & stores: 324 tons, 17.1 %
Miscellaneous weights: 85 tons, 4.5 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
605 lbs / 275 Kg = 13.0 x 4.5 " / 115 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.30
Metacentric height 1.7 ft / 0.5 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.49
Seaboat quality (Average = 1.00): 1.02
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.403
Length to Beam Ratio: 10.65 : 1
'Natural speed' for length: 22.34 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 20.00 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 (43 %): 19.69 ft / 6.00 m (10.66 ft / 3.25 m aft of break)
- Quarterdeck (15 %): 10.66 ft / 3.25 m
- Stern: 10.66 ft / 3.25 m
- Average freeboard: 14.67 ft / 4.47 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 166.4 %
- Above water (accommodation/working, high = better): 75.5 %
Waterplane Area: 8,555 Square feet or 795 Square metres
Displacement factor (Displacement / loading): 81 %
Structure weight / hull surface area: 36 lbs/sq ft or 178 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.52
- Overall: 0.56
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
1944 Refit Notes
Replacement of two sextuple 20mm mounts with two twin M1944 37mm mounts
Replacement of single 20mm with twin 20mm mounts
***
1939 Class
ARA Cervantes
ARA Juan de Garray
ARA Catamarca
ARA San Juan
ARA Santa Cruz
ARA Spiro
Project 421 1939 Class, Argentina Destroyer laid down 1939
Displacement:
1,594 t light; 1,686 t standard; 1,936 t normal; 2,136 t full load
Dimensions: Length overall / water x beam x draught
383.82 ft / 377.30 ft x 35.43 ft x 12.30 ft (normal load)
116.99 m / 115.00 m x 10.80 m x 3.75 m
Armament:
6 - 4.53" / 115 mm guns (3x2 guns), 55.12lbs / 25.00kg shells, 1933 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 2 raised mounts - superfiring
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 339 lbs / 154 kg
Shells per gun, main battery: 275
8 - 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 0.79" / 20 mm
2nd: 0.39" / 10 mm - -
3rd: 0.39" / 10 mm - -
- Conning tower: 0.98" / 25 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 35,000 shp / 26,110 Kw = 33.25 kts
Range 6,000nm at 15.00 kts
Bunker at max displacement = 451 tons
Complement:
145 - 189
Cost:
£1.197 million / $4.788 million
Distribution of weights at normal displacement:
Armament: 36 tons, 1.9 %
Armour: 18 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 14 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 856 tons, 44.2 %
Hull, fittings & equipment: 600 tons, 31.0 %
Fuel, ammunition & stores: 342 tons, 17.7 %
Miscellaneous weights: 85 tons, 4.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
659 lbs / 299 Kg = 14.2 x 4.5 " / 115 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.31
Metacentric height 1.7 ft / 0.5 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.50
Seaboat quality (Average = 1.00): 1.06
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.412
Length to Beam Ratio: 10.65 : 1
'Natural speed' for length: 22.31 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 17.00 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 (43 %): 19.69 ft / 6.00 m (11.48 ft / 3.50 m aft of break)
- Quarterdeck (15 %): 11.48 ft / 3.50 m
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 15.14 ft / 4.62 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 163.4 %
- Above water (accommodation/working, high = better): 77.8 %
Waterplane Area: 8,605 Square feet or 799 Square metres
Displacement factor (Displacement / loading): 85 %
Structure weight / hull surface area: 37 lbs/sq ft or 179 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.67
- Overall: 0.56
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Class Names: Cervantes, Juan de Garray, Catamarca, San Juan, Santa Cruz, Spiro
Misc Weight: Includes eight 600mm torpedoes, 4 DCT and two racks (40 DC) and Langhiri-Florisson ASDIC