WesWorld

[SIZE=3]Destroyers of the of the Marinha Imperial[/SIZE]

Matto Grosso-class
- MIBN Matto Grosso
- MIBN Piauhy: rated at 95%, in reserve
- MIBN Rio Grande do Norte
- MIBN Santa Catharina
- MIBN Parana
- MIBN Sergipe: rated at 94%, in reserve

Pará-class Destroyer
- MIBN Pará
- MIBN Parahyba
- MIBN Ceará

Arare-class Destroyer
- MIBN Arara
- MIBN Verde
- MIBN Baldum
- MIBN Cabixi
- MIBN Dourado
- MIBN Engano
- MIBN Farro
- MIBN Grande
- MIBN Gramamae

Santos de Espar-class Destroyer
- MIBN Santos de Espar: Laid down in Rio de Janeiro in January 1942, completed December 1942.
- MIBN Goiás: Laid down in Macapa in January 1942, completed December 1942.
- MIBN Onça: Laid down in Macapa in January 1942, completed December 1942.
- MIBN Leão: Laid down in Macapa in January 1942, completed December 1942.
- MIBN Rio Grande do Sul: Laid down in Macapa in January 1942, completed December 1942.

Niterói-class Destroyer
- MIBN Niterói: Laid down in Rio de Janeiro in January 1943, completed December 1943.
- MIBN Uberlândia: Laid down in Rio de Janeiro in January 1943, completed December 1943.
- MIBN Teresina: Laid down in Rio de Janeiro in January 1943, completed December 1943.
- MIBN Fortaleza: Laid down in Rio de Janeiro in April 1943, completed March 1944.
- MIBN Campinas: Laid down in Macapa in April 1943, completed March 1944.
- MIBN Recife: Laid down in Macapa in April 1943, completed March 1944.
- MIBN Belém: Laid down in Rio de Janeiro in July 1943, completed June 1944.
- MIBN Londrina: Laid down in Rio de Janeiro in July 1943, completed June 1944.
- MIBN Feira de Santana: Laid down in Rio de Janeiro in July 1943, completed June 1944.
- MIBN Contagem: Laid down in Rio de Janeiro in October 1943, completed September 1944.
- MIBN Maceió: Laid down in Macapa in October 1943, completed September 1944.
- MIBN Belford Roxo: Laid down in Macapa in October 1943, completed September 1944.
- MIBN Belo Horizonte: Laid down in Rio de Janeiro in January 1944, completed December 1944.
- MIBN Porto Alegre: Laid down in Rio de Janeiro in January 1944, completed December 1944.
- MIBN São Luís: Laid down in Rio de Janeiro in January 1944, completed December 1944.
- MIBN Natal: Laid down in Macapa in April 1944, completed March 1945.
- MIBN Campo Grande: Laid down in Rio de Janeiro in April 1944, completed March 1945.
- MIBN João Pessoa: Laid down in Macapa in April 1944, completed March 1945.
- MIBN São José dos Campos: Laid down in Rio de Janeiro in July 1944, completed June 1945.
- MIBN Sorocaba: Laid down in Rio de Janeiro in July 1944, completed June 1945.
- MIBN Aracaju: Laid down in Rio de Janeiro in July 1944, completed June 1945.
- MIBN Ribeirão Preto: Laid down in Rio de Janeiro in October 1944, completed September 1945.
- MIBN São João de Meriti: Laid down in Macapa in October 1944, completed September 1945.
- MIBN Mauá: Laid down in Macapa in October 1944, completed September 1945.

Matto Grosso class, Brazilian Destroyer laid down 1907 (Engine 1917)

Displacement:
466 t light; 484 t standard; 566 t normal; 631 t full load

Dimensions: Length overall / water x beam x draught
240.00 ft / 240.00 ft x 23.50 ft x 7.80 ft (normal load)
73.15 m / 73.15 m x 7.16 m x 2.38 m

Armament:
2 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1907 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread
4 - 1.85" / 47.0 mm guns (2x2 guns), 3.00lbs / 1.36kg shells, 1907 Model
Quick firing guns in deck mounts
on side, all amidships
Weight of broadside 76 lbs / 34 kg
Shells per gun, main battery: 150
2 - 18.0" / 457.2 mm above water torpedoes

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 10,500 ihp / 7,833 Kw = 27.05 kts
Range 1,600nm at 15.00 kts (Bunkerage = 147 tons)

Complement:
57 - 75

Cost:
£0.066 million / $0.265 million

Distribution of weights at normal displacement:
Armament: 10 tons, 1.7 %
Machinery: 300 tons, 53.0 %
Hull, fittings & equipment: 156 tons, 27.6 %
Fuel, ammunition & stores: 100 tons, 17.7 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
163 lbs / 74 Kg = 5.1 x 4.0 " / 102 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.39
Metacentric height 1.0 ft / 0.3 m
Roll period: 9.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.17
Seaboat quality (Average = 1.00): 0.88

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.450
Length to Beam Ratio: 10.21 : 1
'Natural speed' for length: 15.49 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 79
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: 15.00 ft / 4.57 m
- Forecastle (10 %): 15.00 ft / 4.57 m
- Mid (20 %): 15.00 ft / 4.57 m (8.00 ft / 2.44 m aft of break)
- Quarterdeck (15 %): 8.00 ft / 2.44 m
- Stern: 8.00 ft / 2.44 m
- Average freeboard: 9.40 ft / 2.87 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 184.1 %
- Above water (accommodation/working, high = better): 88.1 %
Waterplane Area: 3,598 Square feet or 334 Square metres
Displacement factor (Displacement / loading): 39 %
Structure weight / hull surface area: 24 lbs/sq ft or 116 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.57
- Longitudinal: 1.48
- Overall: 0.63
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

Six Ships:
MIBN Matto Grosso
MIBN Piauhy (rated at 95%)
MIBN Rio Grande do Norte
MIBN Santa Catharina
MIBN Parana
MIBN Sergipe (rated at 94%)

Margay II Class, Brazil Destroyer laid down 1937

Displacement:
2,104 t light; 2,223 t standard; 2,526 t normal; 2,769 t full load

Dimensions: Length overall / water x beam x draught
404.26 ft / 393.00 ft x 37.50 ft x 15.00 ft (normal load)
123.22 m / 119.79 m x 11.43 m x 4.57 m

Armament:
8 - 4.72" / 120 mm guns (4x2 guns), 52.72lbs / 23.92kg shells, 1936 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
10 - 1.46" / 37.0 mm guns (5x2 guns), 1.55lbs / 0.70kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, all amidships
4 - 0.54" / 13.7 mm guns in single mounts, 0.08lbs / 0.04kg shells, 1936 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 438 lbs / 198 kg
Shells per gun, main battery: 275
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm 0.75" / 19 mm 1.00" / 25 mm

- Conning tower: 1.00" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 44,204 shp / 32,976 Kw = 34.00 kts
Range 6,000nm at 15.00 kts
Bunker at max displacement = 547 tons

Complement:
177 - 231

Cost:
£1.469 million / $5.875 million

Distribution of weights at normal displacement:
Armament: 55 tons, 2.2 %
Armour: 27 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 23 tons, 0.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 4 tons, 0.2 %
Machinery: 1,136 tons, 44.9 %
Hull, fittings & equipment: 812 tons, 32.1 %
Fuel, ammunition & stores: 423 tons, 16.7 %
Miscellaneous weights: 75 tons, 3.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
825 lbs / 374 Kg = 15.7 x 4.7 " / 120 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 1.6 ft / 0.5 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.72
Seaboat quality (Average = 1.00): 1.25

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.48 : 1
'Natural speed' for length: 22.84 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 1.00 ft / 0.30 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.00 ft / 6.71 m
- Forecastle (20 %): 17.00 ft / 5.18 m
- Mid (50 %): 17.00 ft / 5.18 m
- Quarterdeck (15 %): 17.00 ft / 5.18 m
- Stern: 17.00 ft / 5.18 m
- Average freeboard: 17.40 ft / 5.30 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 166.4 %
- Above water (accommodation/working, high = better): 91.7 %
Waterplane Area: 9,415 Square feet or 875 Square metres
Displacement factor (Displacement / loading): 84 %
Structure weight / hull surface area: 41 lbs/sq ft or 200 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.41
- Overall: 0.59
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

Three Ships:
- MIBN Pará
- MIBN Parahyba
- MIBN Ceará

Arara Class, Brazilian Destroyer laid down 1937

Displacement:
1,586 t light; 1,661 t standard; 1,914 t normal; 2,116 t full load

Dimensions: Length overall / water x beam x draught
384.37 ft / 375.00 ft x 36.00 ft x 12.25 ft (normal load)
117.16 m / 114.30 m x 10.97 m x 3.73 m

Armament:
6 - 4.72" / 120 mm guns (3x2 guns), 52.58lbs / 23.85kg shells, 1937 Model
Dual purpose 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, 1937 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.79" / 20.0 mm guns (1x4 guns), 0.24lbs / 0.11kg shells, 1937 Model
Anti-aircraft guns in deck mount
on side, all raised guns
6 - 0.54" / 13.7 mm guns in single mounts, 0.08lbs / 0.04kg shells, 1937 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 324 lbs / 147 kg
Shells per gun, main battery: 200
10 - 21.0" / 533.4 mm above water torpedoes

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

- Conning tower: 1.00" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 36,871 shp / 27,506 Kw = 33.75 kts
Range 6,000nm at 15.00 kts
Bunker at max displacement = 455 tons

Complement:
144 - 188

Cost:
£1.161 million / $4.643 million

Distribution of weights at normal displacement:
Armament: 41 tons, 2.1 %
Armour: 23 tons, 1.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 19 tons, 1.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 881 tons, 46.0 %
Hull, fittings & equipment: 597 tons, 31.2 %
Fuel, ammunition & stores: 328 tons, 17.1 %
Miscellaneous weights: 45 tons, 2.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
735 lbs / 334 Kg = 14.0 x 4.7 " / 120 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.50
Metacentric height 2.2 ft / 0.7 m
Roll period: 10.3 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.21
Seaboat quality (Average = 1.00): 1.30

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.405
Length to Beam Ratio: 10.42 : 1
'Natural speed' for length: 22.31 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 41
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: 25.75 ft / 7.85 m
- Forecastle (20 %): 20.50 ft / 6.25 m
- Mid (50 %): 20.50 ft / 6.25 m (12.00 ft / 3.66 m aft of break)
- Quarterdeck (15 %): 12.00 ft / 3.66 m
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 16.67 ft / 5.08 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 168.0 %
- Above water (accommodation/working, high = better): 89.2 %
Waterplane Area: 8,650 Square feet or 804 Square metres
Displacement factor (Displacement / loading): 79 %
Structure weight / hull surface area: 34 lbs/sq ft or 166 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.34
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Good seaboat, rides out heavy weather easily

50t for Electronics outfit
25t for ASW equipment

Image and sim by Wes

Nine ships:
- MIBN Arara
- MIBN Verde
- MIBN Baldum
- MIBN Cabixi
- MIBN Dourado
- MIBN Engano
- MIBN Farro
- MIBN Grande
- MIBN Gramamae

[SIZE=1]Pic by Shin[/SIZE]

Santos de Espar Class, Brazilian Destoyer laid down 1942

Displacement:
1,650 t light; 1,746 t standard; 1,994 t normal; 2,192 t full load

Dimensions: Length overall / water x beam x draught
389.24 ft / 374.02 ft x 36.09 ft x 12.30 ft (normal load)
118.64 m / 114.00 m x 11.00 m x 3.75 m

Armament:
6 - 4.72" / 120 mm guns (3x2 guns), 52.91lbs / 24.00kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority aft, 1 raised mount aft - superfiring
6 - 1.46" / 37.0 mm guns (3x2 guns), 1.55lbs / 0.70kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on centreline, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1942 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.79" / 20.0 mm guns (1x4 guns), 0.24lbs / 0.11kg shells, 1942 Model
Machine guns in deck mount
on centreline forward, all raised guns - superfiring
Weight of broadside 330 lbs / 150 kg
Shells per gun, main battery: 300
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm 0.59" / 15 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 38,300 shp / 28,572 Kw = 33.75 kts
Range 6,000nm at 15.00 kts
Bunker at max displacement = 446 tons

Complement:
148 - 193

Cost:
£1.382 million / $5.527 million

Distribution of weights at normal displacement:
Armament: 41 tons, 2.1 %
Armour: 14 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 14 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 892 tons, 44.7 %
Hull, fittings & equipment: 633 tons, 31.7 %
Fuel, ammunition & stores: 344 tons, 17.3 %
Miscellaneous weights: 70 tons, 3.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
654 lbs / 297 Kg = 12.4 x 4.7 " / 120 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 1.5 ft / 0.4 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.57
Seaboat quality (Average = 1.00): 1.09

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.420
Length to Beam Ratio: 10.36 : 1
'Natural speed' for length: 22.24 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 5.68 ft / 1.73 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.25 ft / 8.00 m
- Forecastle (20 %): 19.69 ft / 6.00 m
- Mid (50 %): 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: 16.11 ft / 4.91 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 165.7 %
- Above water (accommodation/working, high = better): 84.0 %
Waterplane Area: 8,738 Square feet or 812 Square metres
Displacement factor (Displacement / loading): 83 %
Structure weight / hull surface area: 37 lbs/sq ft or 180 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.00
- Overall: 0.57
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

45t for Electronics outfit
25t for ASW equipment

Ships in Class:
- MIBN Santos de Espar: Laid down in Rio de Janeiro in January 1942, completed December 1942.
- MIBN Goiás: Laid down in Macapa in January 1942, completed December 1942.
- MIBN Onça: Laid down in Macapa in January 1942, completed December 1942.
- MIBN Leão: Laid down in Macapa in January 1942, completed December 1942.
- MIBN Rio Grande do Sul: Laid down in Macapa in January 1942, completed December 1942.

Niterói-class, Brazilian Destroyer laid down 1943

Displacement:
2,200 t light; 2,361 t standard; 2,728 t normal; 3,022 t full load

Dimensions: Length overall / water x beam x draught
402.06 ft / 393.70 ft x 41.01 ft x 13.12 ft (normal load)
122.55 m / 120.00 m x 12.50 m x 4.00 m

Armament:
6 - 4.72" / 120 mm guns (3x2 guns), 52.91lbs / 24.00kg shells, 1943 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1943 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread, all raised mounts
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1943 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1943 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 335 lbs / 152 kg
Shells per gun, main battery: 550
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm 0.59" / 15 mm
2nd: 0.59" / 15 mm 0.20" / 5 mm 0.20" / 5 mm
3rd: 0.59" / 15 mm - -

- Conning tower: 0.98" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 48,166 shp / 35,932 Kw = 34.00 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 661 tons

Complement:
188 - 245

Cost:
£1.865 million / $7.461 million

Distribution of weights at normal displacement:
Armament: 50 tons, 1.8 %
Armour: 21 tons, 0.8 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 17 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 4 tons, 0.2 %
Machinery: 1,188 tons, 43.5 %
Hull, fittings & equipment: 827 tons, 30.3 %
Fuel, ammunition & stores: 528 tons, 19.3 %
Miscellaneous weights: 115 tons, 4.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
975 lbs / 442 Kg = 18.5 x 4.7 " / 120 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 1.8 ft / 0.5 m
Roll period: 12.9 seconds
Steadiness - As gun platform (Average = 50 %): 75 %
- Recoil effect (Restricted arc if above 1.00): 0.44
Seaboat quality (Average = 1.00): 1.13

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.451
Length to Beam Ratio: 9.60 : 1
'Natural speed' for length: 22.86 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 66
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: 22.97 ft / 7.00 m
- Forecastle (30 %): 22.15 ft / 6.75 m
- Mid (60 %): 21.33 ft / 6.50 m (13.12 ft / 4.00 m aft of break)
- Quarterdeck (15 %): 13.12 ft / 4.00 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 18.51 ft / 5.64 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 162.1 %
- Above water (accommodation/working, high = better): 110.8 %
Waterplane Area: 10,704 Square feet or 994 Square metres
Displacement factor (Displacement / loading): 90 %
Structure weight / hull surface area: 40 lbs/sq ft or 195 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.21
- Overall: 0.58
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

Breakdown of Miscellaneous Weights:
- 60 tons for Suite-44a electronics
- 23 tons for ten reload torpedoes (4,410 lb each)
- 10 tons for antisubmarine rocket-launched depth charges
- 10 tons for air-conditioning and heating
- 12 tons for depth charges (56x420-lb bombs)
120 tons total miscellaneous weight

Electronics Suite:
- Type 102 "Cactus" surface search radars (2 radars, 15 tons)
- Type 203 "Cabrillas" air search radars (1 radar, 7.5 tons)
- Type 301 "Boldo" fire-control radars (1 radar, 5 tons)
- Type 202 "Jabali" height-finding radar (1 radar, 2.5 tons)
- SAGEM HF/DF (2.55 tons)
- SPR-42 Sound Projector-Receivers (10 tons)
- Roth-391 backup diesel generator set (7.5 tons)
- Mk42 Nevada Gunnery Computer and Battle Room facilities (10 tons)
- 60 tons

Notes:
Electronics suite purchased from Chile.

Ships in Class:
- MIBN Niterói: Laid down in Rio de Janeiro in January 1943, completed December 1943.
- MIBN Uberlândia: Laid down in Rio de Janeiro in January 1943, completed December 1943.
- MIBN Teresina: Laid down in Rio de Janeiro in January 1943, completed December 1943.
- MIBN Fortaleza: Laid down in Rio de Janeiro in April 1943, completed March 1944.
- MIBN Campinas: Laid down in Macapa in April 1943, completed March 1944.
- MIBN Recife: Laid down in Macapa in April 1943, completed March 1944.
- MIBN Belém: Laid down in Rio de Janeiro in July 1943, completed June 1944.
- MIBN Londrina: Laid down in Rio de Janeiro in July 1943, completed June 1944.
- MIBN Feira de Santana: Laid down in Rio de Janeiro in July 1943, completed June 1944.
- MIBN Contagem: Laid down in Rio de Janeiro in October 1943, completed September 1944.
- MIBN Maceió: Laid down in Macapa in October 1943, completed September 1944.
- MIBN Belford Roxo: Laid down in Macapa in October 1943, completed September 1944.
- MIBN Belo Horizonte: Laid down in Rio de Janeiro in January 1944, completed December 1944.
- MIBN Porto Alegre: Laid down in Rio de Janeiro in January 1944, completed December 1944.
- MIBN São Luís: Laid down in Rio de Janeiro in January 1944, completed December 1944.
- MIBN Natal: Laid down in Macapa in April 1944, completed March 1945.
- MIBN Campo Grande: Laid down in Rio de Janeiro in April 1944, completed March 1945.
- MIBN João Pessoa: Laid down in Macapa in April 1944, completed March 1945.
- MIBN São José dos Campos: Laid down in Rio de Janeiro in July 1944, completed June 1945.
- MIBN Sorocaba: Laid down in Rio de Janeiro in July 1944, completed June 1945.
- MIBN Aracaju: Laid down in Rio de Janeiro in July 1944, completed June 1945.
- MIBN Ribeirão Preto: Laid down in Rio de Janeiro in October 1944, completed September 1945.
- MIBN São João de Meriti: Laid down in Macapa in October 1944, completed September 1945.
- MIBN Mauá: Laid down in Macapa in October 1944, completed September 1945.