WesWorld

NUEVE DE JULIO, COMODORE PY, HIPOLITO BOUCHARD, ESPORA (laid down Q1/36)

Light Scout Cruiser, Atlantis Design Scout Cruiser laid down 1932

Displacement:
4,277 t light; 4,454 t standard; 4,944 t normal; 5,337 t full load

Dimensions: Length overall / water x beam x draught
485.91 ft / 475.00 ft x 46.00 ft x 18.00 ft (normal load)
148.11 m / 144.78 m x 14.02 m x 5.49 m

Armament:
10 - 5.12" / 130 mm guns (5x2 guns), 66.14lbs / 30.00kg shells, 1932 Model
Breech loading guns in deck mounts with hoists
on centreline ends, majority aft, 3 raised mounts - superfiring
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 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, all raised mounts
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1932 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 682 lbs / 310 kg
Shells per gun, main battery: 200
12 - 23.6" / 599.44 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.57" / 40 mm 429.99 ft / 131.06 m 8.01 ft / 2.44 m
Ends: Unarmoured
Main Belt covers 139 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm

- Armour deck: 0.79" / 20 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 63,484 shp / 47,359 Kw = 34.00 kts
Range 6,200nm at 15.00 kts
Bunker at max displacement = 883 tons

Complement:
294 - 383

Cost:
£2.203 million / $8.811 million

Distribution of weights at normal displacement:
Armament: 86 tons, 1.7 %
Armour: 486 tons, 9.8 %
- Belts: 213 tons, 4.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 44 tons, 0.9 %
- Armour Deck: 209 tons, 4.2 %
- Conning Tower: 20 tons, 0.4 %
Machinery: 1,874 tons, 37.9 %
Hull, fittings & equipment: 1,761 tons, 35.6 %
Fuel, ammunition & stores: 667 tons, 13.5 %
Miscellaneous weights: 70 tons, 1.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,960 lbs / 1,342 Kg = 44.1 x 5.1 " / 130 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.28
Metacentric height 2.4 ft / 0.7 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.43
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.440
Length to Beam Ratio: 10.33 : 1
'Natural speed' for length: 25.00 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 42
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: 29.99 ft / 9.14 m
- Forecastle (20 %): 18.21 ft / 5.55 m
- Mid (50 %): 18.21 ft / 5.55 m
- Quarterdeck (15 %): 18.21 ft / 5.55 m
- Stern: 18.21 ft / 5.55 m
- Average freeboard: 19.15 ft / 5.84 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 138.1 %
- Above water (accommodation/working, high = better): 88.4 %
Waterplane Area: 14,359 Square feet or 1,334 Square metres
Displacement factor (Displacement / loading): 99 %
Structure weight / hull surface area: 64 lbs/sq ft or 314 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.72
- Longitudinal: 2.15
- Overall: 0.80
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Good seaboat, rides out heavy weather easily


****
1946 Refits

Displacement:
4,277 t light; 4,454 t standard; 4,944 t normal; 5,337 t full load

Dimensions: Length overall / water x beam x draught
485.91 ft / 475.00 ft x 46.00 ft x 18.00 ft (normal load)
148.11 m / 144.78 m x 14.02 m x 5.49 m

Armament:
10 - 5.12" / 130 mm guns (5x2 guns), 66.14lbs / 30.00kg shells, 1932 Model
Breech loading guns in deck mounts with hoists
on centreline ends, majority aft, 3 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 centreline ends, evenly spread, all raised mounts
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 684 lbs / 310 kg
Shells per gun, main battery: 200
12 - 23.6" / 599.44 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.57" / 40 mm 429.99 ft / 131.06 m 8.01 ft / 2.44 m
Ends: Unarmoured
Main Belt covers 139 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm

- Armour deck: 0.79" / 20 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 63,484 shp / 47,359 Kw = 34.00 kts
Range 6,200nm at 15.00 kts
Bunker at max displacement = 883 tons

Complement:
294 - 383

Cost:
£2.203 million / $8.813 million

Distribution of weights at normal displacement:
Armament: 87 tons, 1.8 %
Armour: 486 tons, 9.8 %
- Belts: 213 tons, 4.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 44 tons, 0.9 %
- Armour Deck: 209 tons, 4.2 %
- Conning Tower: 20 tons, 0.4 %
Machinery: 1,874 tons, 37.9 %
Hull, fittings & equipment: 1,760 tons, 35.6 %
Fuel, ammunition & stores: 668 tons, 13.5 %
Miscellaneous weights: 70 tons, 1.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,957 lbs / 1,341 Kg = 44.1 x 5.1 " / 130 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.28
Metacentric height 2.4 ft / 0.7 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.43
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.440
Length to Beam Ratio: 10.33 : 1
'Natural speed' for length: 25.00 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 42
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: 29.99 ft / 9.14 m
- Forecastle (20 %): 18.21 ft / 5.55 m
- Mid (50 %): 18.21 ft / 5.55 m
- Quarterdeck (15 %): 18.21 ft / 5.55 m
- Stern: 18.21 ft / 5.55 m
- Average freeboard: 19.15 ft / 5.84 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 138.2 %
- Above water (accommodation/working, high = better): 88.4 %
Waterplane Area: 14,359 Square feet or 1,334 Square metres
Displacement factor (Displacement / loading): 99 %
Structure weight / hull surface area: 64 lbs/sq ft or 314 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.72
- Longitudinal: 2.15
- Overall: 0.80
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Good seaboat, rides out heavy weather easily

Refit Notes

Replacement of twin 37mm mounts with new 1944 Model mounts
Replacement of single 20mm mounts with new twin mounts
Removal of 12.7mm machine-guns
Refurbishment of internal fittings for life extension
Replacement of LA and HA rangefinders with new HA/LA director towers

ARA Vice Almirnate Higgins

Project 325 Vice Almirante Higgins, Argentina Minelayer/Cruiser laid down 1941

Displacement:
2,752 t light; 2,880 t standard; 3,273 t normal; 3,587 t full load

Dimensions: Length overall / water x beam x draught
513.55 ft / 508.53 ft x 43.31 ft x 11.48 ft (normal load)
156.53 m / 155.00 m x 13.20 m x 3.50 m

Armament:
6 - 4.53" / 115 mm guns (3x2 guns), 55.12lbs / 25.00kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
24 - 0.79" / 20.0 mm guns (4x6 guns), 0.24lbs / 0.11kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 355 lbs / 161 kg
Shells per gun, main battery: 300

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.38" / 35 mm 0.79" / 20 mm 0.98" / 25 mm
2nd: 0.39" / 10 mm - -
3rd: 0.47" / 12 mm - -

- Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 43,500 shp / 32,451 Kw = 32.05 kts
Range 6,500nm at 15.00 kts
Bunker at max displacement = 707 tons

Complement:
216 - 281

Cost:
£1.787 million / $7.148 million

Distribution of weights at normal displacement:
Armament: 38 tons, 1.2 %
Armour: 34 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 20 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 13 tons, 0.4 %
Machinery: 1,150 tons, 35.1 %
Hull, fittings & equipment: 1,231 tons, 37.6 %
Fuel, ammunition & stores: 521 tons, 15.9 %
Miscellaneous weights: 300 tons, 9.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,314 lbs / 1,049 Kg = 49.9 x 4.5 " / 115 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.36
Metacentric height 2.5 ft / 0.7 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.27
Seaboat quality (Average = 1.00): 1.68

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.453
Length to Beam Ratio: 11.74 : 1
'Natural speed' for length: 22.55 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 30
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: 23.62 ft / 7.20 m
- Forecastle (20 %): 20.01 ft / 6.10 m
- Mid (50 %): 18.04 ft / 5.50 m
- Quarterdeck (15 %): 18.04 ft / 5.50 m
- Stern: 18.04 ft / 5.50 m
- Average freeboard: 19.02 ft / 5.80 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 133.9 %
- Above water (accommodation/working, high = better): 229.7 %
Waterplane Area: 14,082 Square feet or 1,308 Square metres
Displacement factor (Displacement / loading): 112 %
Structure weight / hull surface area: 46 lbs/sq ft or 226 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.60
- Longitudinal: 1.57
- Overall: 0.66
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

126 tons for 180 1,400lb Mines
100 tons for accomdation for 50 cadets
20 tons for 2x Depth Charge Racks and 2x DCT with 40x DC
20 tons for electronics
30 tons growth

ARA Santisima Trinidad
ARA Moreno
ARA Rivadavia
ARA Fortaleza
ARA Delante


Project 326A, Argentina Light Cruiser laid down 1942

Displacement:
7,882 t light; 8,227 t standard; 9,003 t normal; 9,624 t full load

Dimensions: Length overall / water x beam x draught
566.09 ft / 557.74 ft x 59.06 ft x 19.69 ft (normal load)
172.55 m / 170.00 m x 18.00 m x 6.00 m

Armament:
9 - 5.91" / 150 mm guns (3x3 guns), 100.31lbs / 45.50kg shells, 1935 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
8 - 4.53" / 115 mm guns (4x2 guns), 55.12lbs / 25.00kg shells, 1936 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread
12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.24lbs / 0.11kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 1,365 lbs / 619 kg
Shells per gun, main battery: 200
6 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 328.08 ft / 100.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 90 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.94" / 100 mm 2.95" / 75 mm 1.97" / 50 mm
2nd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
3rd: 0.39" / 10 mm - -
4th: 0.47" / 12 mm - -

- Armour deck: 1.97" / 50 mm, Conning tower: 0.98" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 75,000 shp / 55,950 Kw = 32.58 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 1,397 tons

Complement:
461 - 600

Cost:
£4.383 million / $17.531 million

Distribution of weights at normal displacement:
Armament: 165 tons, 1.8 %
Armour: 1,607 tons, 17.8 %
- Belts: 540 tons, 6.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 237 tons, 2.6 %
- Armour Deck: 820 tons, 9.1 %
- Conning Tower: 9 tons, 0.1 %
Machinery: 1,959 tons, 21.8 %
Hull, fittings & equipment: 3,952 tons, 43.9 %
Fuel, ammunition & stores: 1,121 tons, 12.4 %
Miscellaneous weights: 200 tons, 2.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,864 lbs / 6,742 Kg = 144.3 x 5.9 " / 150 mm shells or 1.8 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 3.2 ft / 1.0 m
Roll period: 13.9 seconds
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0.43
Seaboat quality (Average = 1.00): 1.47

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.486
Length to Beam Ratio: 9.44 : 1
'Natural speed' for length: 27.12 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 37
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: 31.17 ft / 9.50 m
- Forecastle (20 %): 24.61 ft / 7.50 m
- Mid (45 %): 22.97 ft / 7.00 m
- Quarterdeck (15 %): 22.97 ft / 7.00 m
- Stern: 22.97 ft / 7.00 m
- Average freeboard: 24.02 ft / 7.32 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88.4 %
- Above water (accommodation/working, high = better): 182.3 %
Waterplane Area: 22,528 Square feet or 2,093 Square metres
Displacement factor (Displacement / loading): 128 %
Structure weight / hull surface area: 98 lbs/sq ft or 481 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.64
- 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

Class Names: Santisima Trinidad, Moreno, Rivadavia, Fortaleza, Delante

Misc Weight:
28 tons for two triple torpedo mounts and twelve 600mm torpdoes
75 tons for one catapult and two aircraft
10 tons air conditioning and heating
25 tons for two RDF sets
20 tons for additional equipment in command spaces
40 tons for growth