WesWorld

ARA Independencia
ARA Guardabosques

Built in Japan, Light Carrier laid down 1934

Displacement:
13,800 t light; 14,430 t standard; 15,999 t normal; 17,254 t full load

Dimensions: Length overall / water x beam x draught
656.16 ft / 640.00 ft x 66.00 ft x 24.00 ft (normal load)
200.00 m / 195.07 m x 20.12 m x 7.32 m

Armament:
8 - 4.53" / 115 mm guns (4x2 guns), 55.12lbs / 25.00kg shells, 1934 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, 2 raised mounts - superfiring
16 - 4.53" / 115 mm guns (8x2 guns), 55.12lbs / 25.00kg shells, 1934 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread
16 - 1.46" / 37.0 mm guns (4x4 guns), 1.55lbs / 0.70kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
24 - 0.79" / 20.0 mm guns (4x6 guns), 0.24lbs / 0.11kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 1,366 lbs / 620 kg
Shells per gun, main battery: 350

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.53" / 115 mm 393.70 ft / 120.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Upper: 2.36" / 60 mm 524.93 ft / 160.00 m 18.04 ft / 5.50 m
Main Belt covers 95 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm 1.18" / 30 mm
2nd: 1.97" / 50 mm 0.98" / 25 mm 1.18" / 30 mm
3rd: 0.79" / 20 mm - -

- Armour deck: 2.56" / 65 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 110,498 shp / 82,431 Kw = 33.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 2,824 tons

Complement:
710 - 924

Cost:
£5.152 million / $20.608 million

Distribution of weights at normal displacement:
Armament: 145 tons, 0.9 %
Armour: 3,239 tons, 20.2 %
- Belts: 1,644 tons, 10.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 101 tons, 0.6 %
- Armour Deck: 1,456 tons, 9.1 %
- Conning Tower: 38 tons, 0.2 %
Machinery: 3,179 tons, 19.9 %
Hull, fittings & equipment: 5,110 tons, 31.9 %
Fuel, ammunition & stores: 2,199 tons, 13.7 %
Miscellaneous weights: 2,127 tons, 13.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
21,491 lbs / 9,748 Kg = 463.1 x 4.5 " / 115 mm shells or 2.1 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 3.3 ft / 1.0 m
Roll period: 15.2 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.25
Seaboat quality (Average = 1.00): 1.21

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.552
Length to Beam Ratio: 9.70 : 1
'Natural speed' for length: 28.77 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 43
Bow angle (Positive = bow angles forward): 23.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.00 ft / 9.45 m
- Forecastle (20 %): 28.10 ft / 8.56 m
- Mid (40 %): 28.10 ft / 8.56 m (20.10 ft / 6.13 m aft of break)
- Quarterdeck (15 %): 20.10 ft / 6.13 m
- Stern: 20.10 ft / 6.13 m
- Average freeboard: 23.53 ft / 7.17 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.9 %
- Above water (accommodation/working, high = better): 186.2 %
Waterplane Area: 30,760 Square feet or 2,858 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 102 lbs/sq ft or 497 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.57
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily


***

1943 Refit

Independencia, Japan/ Argentina Light Carrier laid down 1934

Displacement:
13,804 t light; 14,432 t standard; 16,001 t normal; 17,257 t full load

Dimensions: Length overall / water x beam x draught
656.14 ft / 639.99 ft x 66.01 ft x 24.02 ft (normal load)
199.99 m / 195.07 m x 20.12 m x 7.32 m

Armament:
8 - 4.53" / 115 mm guns (4x2 guns), 55.12lbs / 25.00kg shells, 1934 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 4.53" / 115 mm guns (8x2 guns), 55.12lbs / 25.00kg shells, 1934 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
16 - 1.46" / 37.0 mm guns (4x4 guns), 1.55lbs / 0.70kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, all aft
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 1,362 lbs / 618 kg
Shells per gun, main battery: 350

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.53" / 115 mm 393.70 ft / 120.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Upper: 2.36" / 60 mm 524.93 ft / 160.00 m 18.04 ft / 5.50 m
Main Belt covers 95 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm 1.18" / 30 mm
2nd: 1.97" / 50 mm 0.98" / 25 mm 1.18" / 30 mm
3rd: 0.79" / 20 mm - -

- Armour deck: 2.56" / 65 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 110,490 shp / 82,426 Kw = 33.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 2,824 tons

Complement:
710 - 924

Cost:
£5.151 million / $20.602 million

Distribution of weights at normal displacement:
Armament: 144 tons, 0.9 %
Armour: 3,239 tons, 20.2 %
- Belts: 1,644 tons, 10.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 101 tons, 0.6 %
- Armour Deck: 1,456 tons, 9.1 %
- Conning Tower: 38 tons, 0.2 %
Machinery: 3,179 tons, 19.9 %
Hull, fittings & equipment: 5,116 tons, 32.0 %
Fuel, ammunition & stores: 2,197 tons, 13.7 %
Miscellaneous weights: 2,127 tons, 13.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
21,509 lbs / 9,756 Kg = 463.5 x 4.5 " / 115 mm shells or 2.1 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 3.3 ft / 1.0 m
Roll period: 15.2 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.25
Seaboat quality (Average = 1.00): 1.21

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.552
Length to Beam Ratio: 9.70 : 1
'Natural speed' for length: 28.77 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 43
Bow angle (Positive = bow angles forward): 23.00 degrees
Stern overhang: 2.99 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.00 ft / 9.45 m
- Forecastle (20 %): 28.08 ft / 8.56 m
- Mid (40 %): 28.08 ft / 8.56 m (20.11 ft / 6.13 m aft of break)
- Quarterdeck (15 %): 20.11 ft / 6.13 m
- Stern: 20.11 ft / 6.13 m
- Average freeboard: 23.53 ft / 7.17 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.8 %
- Above water (accommodation/working, high = better): 186.2 %
Waterplane Area: 30,754 Square feet or 2,857 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 102 lbs/sq ft or 498 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.56
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

Refit Notes

Replacement of quadruple 37mm mounts with new pattern mounts
Existing 37mm mounts swapped with twin 20mm mounts
Replacement of sextuple 20mm with twin 37mm mounts
New directors
One RDF set fitted
Refurbishment of internal fittings for life extension
New catapults fitted

ARA Avispón (ex- Italian Giovanni delle Bande Nere)

Brought in 1940 from Italy. Bande Nere was reconstructed in 1934, with a new steam/diesel powerplant and additional bunkerage. The four barbettes were removed and a single 152mm mount added in their place. A large transport deck was built along the weather deck. Alongside of the new superstructure is a small flying off deck for light aircraft and autogyros. On the starboard side of the superstructure is a large gangway for ease of embarkation in port. Aft is a 50t crane and two assault boats. She can serve as an aircraft transport, replenishment vessel or a landing support vessel. Below decks are accomodations for 300 troops. Between this ship and the ten MZ landing craft it is possible to transport a battalion of soldiers over short distances.

Condottieri I, Italian Light Cruiser laid down 1925 (Engine 1934)

Displacement:
5,602 t light; 5,781 t standard; 6,664 t normal; 7,371 t full load

Dimensions: Length overall / water x beam x draught
539.12 ft / 524.93 ft x 52.49 ft x 19.69 ft (normal load)
164.32 m / 160.00 m x 16.00 m x 6.00 m

Armament:
1 - 5.98" / 152 mm guns in single mounts, 110.23lbs / 50.00kg shells, 1925 Model
Breech loading gun in deck mount
on centreline forward
12 - 1.85" / 47.0 mm guns (3x4 guns), 3.86lbs / 1.75kg shells, 1925 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
4 - 1.85" / 47.0 mm guns (2x2 guns), 3.86lbs / 1.75kg shells, 1925 Model
Anti-aircraft guns in deck mounts
on side, all forward
Weight of broadside 172 lbs / 78 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.76" / 70 mm 449.48 ft / 137.00 m 8.69 ft / 2.65 m
Ends: Unarmoured
Main Belt covers 132 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.79" / 20 mm 0.39" / 10 mm -
2nd: 0.39" / 10 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

- Armour deck: 1.38" / 35 mm, Conning tower: 1.42" / 36 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 2 shafts, 62,000 shp / 46,252 Kw = 32.63 kts
Range 5,000nm at 20.00 kts
Bunker at max displacement = 1,589 tons

Complement:
368 - 479

Cost:
£1.513 million / $6.053 million

Distribution of weights at normal displacement:
Armament: 20 tons, 0.3 %
Armour: 903 tons, 13.6 %
- Belts: 428 tons, 6.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 6 tons, 0.1 %
- Armour Deck: 458 tons, 6.9 %
- Conning Tower: 11 tons, 0.2 %
Machinery: 1,784 tons, 26.8 %
Hull, fittings & equipment: 2,096 tons, 31.4 %
Fuel, ammunition & stores: 1,062 tons, 15.9 %
Miscellaneous weights: 800 tons, 12.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6,924 lbs / 3,141 Kg = 64.6 x 6.0 " / 152 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 2.3 ft / 0.7 m
Roll period: 14.6 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 1.14

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.430
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 26.38 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 62
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.61 ft / 7.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (38 %): 22.97 ft / 7.00 m (14.76 ft / 4.50 m aft of break)
- Quarterdeck (15 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 18.01 ft / 5.49 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 103.1 %
- Above water (accommodation/working, high = better): 158.4 %
Waterplane Area: 17,967 Square feet or 1,669 Square metres
Displacement factor (Displacement / loading): 123 %
Structure weight / hull surface area: 70 lbs/sq ft or 343 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.87
- Longitudinal: 1.41
- Overall: 0.91
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

700tons = aircraft and vehicles

Sim and info by Red Admiral

***

1942 Refit

Avispón , Italy Training Carrier/ Landing Ship laid down 1925 (Engine 1934)

Displacement:
5,626 t light; 5,781 t standard; 6,664 t normal; 7,371 t full load

Dimensions: Length overall / water x beam x draught
539.12 ft / 524.93 ft x 52.49 ft x 19.69 ft (normal load)
164.32 m / 160.00 m x 16.00 m x 6.00 m

Armament:
1 - 5.12" / 130 mm guns in single mounts, 67.24lbs / 30.50kg shells, 1933 Model
Breech loading gun in deck mount
on centreline forward
8 - 1.46" / 37.0 mm guns (2x4 guns), 1.55lbs / 0.70kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - 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 forward
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 86 lbs / 39 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.76" / 70 mm 449.48 ft / 137.00 m 8.69 ft / 2.65 m
Ends: Unarmoured
Main Belt covers 132 % of normal length

- 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 - -
4th: 0.39" / 10 mm - -

- Armour deck: 1.38" / 35 mm, Conning tower: 1.42" / 36 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 62,034 shp / 46,277 Kw = 32.63 kts
Range 5,000nm at 20.00 kts
Bunker at max displacement = 1,589 tons

Complement:
368 - 479

Cost:
£1.492 million / $5.967 million

Distribution of weights at normal displacement:
Armament: 11 tons, 0.2 %
Armour: 902 tons, 13.5 %
- Belts: 428 tons, 6.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.1 %
- Armour Deck: 458 tons, 6.9 %
- Conning Tower: 11 tons, 0.2 %
Machinery: 1,785 tons, 26.8 %
Hull, fittings & equipment: 2,113 tons, 31.7 %
Fuel, ammunition & stores: 1,038 tons, 15.6 %
Miscellaneous weights: 815 tons, 12.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,136 lbs / 3,237 Kg = 106.4 x 5.1 " / 130 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 2.3 ft / 0.7 m
Roll period: 14.7 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.14

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.430
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 26.38 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 62
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.61 ft / 7.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (38 %): 22.97 ft / 7.00 m (14.76 ft / 4.50 m aft of break)
- Quarterdeck (15 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 18.01 ft / 5.49 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 102.1 %
- Above water (accommodation/working, high = better): 158.4 %
Waterplane Area: 17,967 Square feet or 1,669 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 71 lbs/sq ft or 346 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.88
- Longitudinal: 1.43
- Overall: 0.92
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

25% Refit Notes
Italian 47mm guns removed and replaced by 37mm mounts, one qaud 47mm mount removed totally
Two 20mm cannon added
152mm gun replaced by a 130mm gun
RDF set added
Refurbishment of interal fittings for life extension
New catapult fitted

Project 721, Argentina Aircraft Carrier laid down 1948

Displacement:
16,025 t light; 16,565 t standard; 19,112 t normal; 21,150 t full load

Dimensions: Length overall / water x beam x draught
705.18 ft / 688.98 ft x 96.78 ft x 18.37 ft (normal load)
214.94 m / 210.00 m x 29.50 m x 5.60 m

Armament:
8 - 5.04" / 128 mm guns (4x2 guns), 64.00lbs / 29.03kg shells, 1947 Model
Automatic rapid fire guns in deck mounts with hoists
on side ends, evenly spread, all raised mounts - superfiring
12 - 2.17" / 55.0 mm guns (6x2 guns), 5.08lbs / 2.30kg shells, 1947 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 592 lbs / 268 kg
Shells per gun, main battery: 450

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.76" / 70 mm 196.85 ft / 60.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 44 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Torpedo Bulkhead:
0.98" / 25 mm 508.53 ft / 155.00 m 16.99 ft / 5.18 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.79" / 20 mm 0.98" / 25 mm
2nd: 0.59" / 15 mm 0.59" / 15 mm -
3rd: 0.59" / 15 mm 0.39" / 10 mm -

- Armour deck: 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 100,000 shp / 74,600 Kw = 31.16 kts
Range 14,000nm at 16.00 kts
Bunker at max displacement = 4,585 tons

Complement:
812 - 1,056

Cost:
£7.274 million / $29.098 million

Distribution of weights at normal displacement:
Armament: 87 tons, 0.5 %
Armour: 2,398 tons, 12.5 %
- Belts: 287 tons, 1.5 %
- Torpedo bulkhead: 315 tons, 1.6 %
- Armament: 39 tons, 0.2 %
- Armour Deck: 1,758 tons, 9.2 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 2,444 tons, 12.8 %
Hull, fittings & equipment: 6,897 tons, 36.1 %
Fuel, ammunition & stores: 3,087 tons, 16.2 %
Miscellaneous weights: 4,200 tons, 22.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
37,517 lbs / 17,018 Kg = 586.3 x 5.0 " / 128 mm shells or 6.1 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 6.7 ft / 2.0 m
Roll period: 15.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 1.10

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.546
Length to Beam Ratio: 7.12 : 1
'Natural speed' for length: 30.64 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 4.92 ft / 1.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.00 ft / 9.45 m
- Forecastle (25 %): 31.00 ft / 9.45 m (21.00 ft / 6.40 m aft of break)
- Mid (50 %): 21.00 ft / 6.40 m
- Quarterdeck (15 %): 21.00 ft / 6.40 m
- Stern: 21.00 ft / 6.40 m
- Average freeboard: 23.50 ft / 7.16 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88.6 %
- Above water (accommodation/working, high = better): 237.7 %
Waterplane Area: 48,264 Square feet or 4,484 Square metres
Displacement factor (Displacement / loading): 157 %
Structure weight / hull surface area: 111 lbs/sq ft or 544 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.12
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Class Names:

Belt is box armour around magazines

Endurance is 12,000nm at 15kts (3,954 tons), remaining bunkerage (631 tons) for aviation fuel (917,818 litres)

Hangar deck: 550 x 70 x 17.5ft
Served by two 55 x 44ft lifts with capacity for 30,000lbs
Two hydralic accelerators with capacity for 30,000lbs aircraft
Arrestor gear of 9 wires, 1 trickle wire, 2 forward wires and two safety barriers

48 aircraft usually carried (4x 12 aircraft squadrons)
2 crated spare aircraft carried for attrition replacement

Electric Equipment:
One Chilean surface search RDF set
One Chilean aerial search RDF set
One German main HA/LA director with RDF
Four German AA directors with RDF
HF/DF
VHF Homing Beacon

Misc Weight
2,400 tons for 48 aircraft
150 tons for lifts
500 tons for hangar equipment and aircraft stores
500 tons for aircraft ammunition stores
200 tons for fireproof partitions and fire-fighting gear in hangar
100 tons for electronics
200 tons for command spaces and CIC
150 tons for air conditioning and habitability

Acquired from Peru in Q4/1948. Peru had acquired the carrier entered into negotiations with Italy in 1941 for this former training carrier. Italy undertook an extensive refit in order to prepare the vessel for combat service, and handed the ship over in July 1942.

The Argentine airgroup is expected to be approximately 24 FMA I-02N Pulqui fighters and 24 IMPA NT-2 Alicanto torpedo-bombers.


Sketch by Red Admiral.

ARA Almirante Brown (ex-Peruvian Lima, ex-Italian Giovanni Caboto), laid down 1930, refitted 1941/2, purchased 1942

Displacement:
12,681 t light; 13,114 t standard; 15,512 t normal; 17,430 t full load

Dimensions: Length overall / water x beam x draught
671.99 ft / 656.17 ft x 69.09 ft x 23.95 ft (normal load)
204.82 m / 200.00 m x 21.06 m x 7.30 m

Armament:
36 - 1.46" / 37.0 mm guns (9x4 guns), 1.55lbs / 0.70kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 56 lbs / 25 kg
Shells per gun, main battery: 4,000

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.18" / 30 mm 459.32 ft / 140.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Upper: 1.18" / 30 mm 459.32 ft / 140.00 m 16.40 ft / 5.00 m
Main Belt covers 108 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.79" / 20 mm -

- Armour deck: 0.79" / 20 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 82,000 shp / 61,172 Kw = 29.93 kts
Range 7,400nm at 20.00 kts
Bunker at max displacement = 4,316 tons

Complement:
694 - 903

Cost:
£3.335 million / $13.341 million

Distribution of weights at normal displacement:
Armament: 7 tons, 0.0 %
Armour: 1,082 tons, 7.0 %
- Belts: 588 tons, 3.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 17 tons, 0.1 %
- Armour Deck: 440 tons, 2.8 %
- Conning Tower: 37 tons, 0.2 %
Machinery: 2,485 tons, 16.0 %
Hull, fittings & equipment: 4,906 tons, 31.6 %
Fuel, ammunition & stores: 2,831 tons, 18.3 %
Miscellaneous weights: 4,200 tons, 27.1 %
-3,600 t: Up to 60 aircraft
-370 t: Weight reserve
-200 t: Command and operational facilities
-30 t: Sensor fit

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
23,358 lbs / 10,595 Kg = 15,113.6 x 1.5 " / 37 mm shells or 2.4 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 3.7 ft / 1.1 m
Roll period: 15.0 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.70

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.500
Length to Beam Ratio: 9.50 : 1
'Natural speed' for length: 25.62 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 30
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 34.45 ft / 10.50 m
- Forecastle (20 %): 27.89 ft / 8.50 m
- Mid (50 %): 27.89 ft / 8.50 m (19.69 ft / 6.00 m aft of break)
- Quarterdeck (23 %): 19.69 ft / 6.00 m
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 24.31 ft / 7.41 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.2 %
- Above water (accommodation/working, high = better): 199.0 %
Waterplane Area: 30,207 Square feet or 2,806 Square metres
Displacement factor (Displacement / loading): 150 %
Structure weight / hull surface area: 97 lbs/sq ft or 474 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.54
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather