WesWorld

Training Minelayer

ARA Fulton
Commissioned 1896 - Decommissioned Q4/44
79x15x6
79t
speed 9knt


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Sail Training Ship

ARA Presidente Sarmiento
Commissioned 1987, refitted 1939
251.4x43.25x23.25
2,850t
3x120mm
1x102mm
2x6-pdr
2x3-pdr
3 torpedo tubes
speed 15knt


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3 river police craft
P101
P102
P103


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Transports

ARA Rio Negro (1860, rebuilt 1920)
325x36x19.75
2,478t gross
speed 11knt
range 5900@11knt

ARA Patagonia (1884, rebuilt from cruiser 1919)
224.6x32.75x16.75
1,203t gross
speed 10knt
range 4500@10knt

ARA Vicente Fidel Lopez (1905)
164x26x11.5
507t gross
speed 9.3knt

ARA America (1919)
262x43.5x24
2,686t gross
speed 9.5knt


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Oil Tanker

ARA Ministro Ezcurra (1913)
250x40x18.75
2,600t gross
speed 10.5knt
Refitted 1941


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Survey Ship

ARA Alferez Mackinlay (1913)
193.75x28.25x13
783t
speed 10knt
Refitted 1941


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Tugboats

Ona (1912)
Querandi
130x28x12
325t gross
speed 12knt

Azopardo (1918)
164x27.5x14
437t gross
speed 14knt

Project 711 Harbour Tug
Fourteen built 1937-1944
70 tons, 19.5 x 5.1 x 2.3m, 11 kts, 1x 200hp diesel, 7 crew, 1x 13mm HMG


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Crane Ship

Pilcomayo (1874)
416t
speed 9knt

ARA Capitan de Navio Parker

Project 613 Class, Argentina Offical State Yacht/ Sloop laid down 1934

Displacement:
967 t light; 999 t standard; 1,206 t normal; 1,371 t full load

Dimensions: Length overall / water x beam x draught
280.37 ft / 275.10 ft x 33.63 ft x 10.99 ft (normal load)
85.46 m / 83.85 m x 10.25 m x 3.35 m

Armament:
2 - 3.94" / 100 mm guns in single mounts, 30.42lbs / 13.80kg shells, 1932 Model
Quick firing guns in deck mounts
on centreline, all forward, 1 raised mount
1 - 2.24" / 57.0 mm guns in single mounts, 5.51lbs / 2.50kg shells, 1927 Model
Breech loading gun in deck mount
on side amidships
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, all forward
Weight of broadside 67 lbs / 30 kg
Shells per gun, main battery: 200

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

Machinery:
Oil fired boilers, complex reciprocating steam engines,
Geared drive, 2 shafts, 5,000 ihp / 3,730 Kw = 20.37 kts
Range 4,500nm at 15.00 kts
Bunker at max displacement = 372 tons

Complement:
101 - 132

Cost:
£0.394 million / $1.574 million

Distribution of weights at normal displacement:
Armament: 8 tons, 0.7 %
Armour: 3 tons, 0.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.3 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 281 tons, 23.3 %
Hull, fittings & equipment: 525 tons, 43.5 %
Fuel, ammunition & stores: 239 tons, 19.8 %
Miscellaneous weights: 150 tons, 12.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,245 lbs / 1,018 Kg = 73.6 x 3.9 " / 100 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 1.5 ft / 0.5 m
Roll period: 11.5 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.07
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.415
Length to Beam Ratio: 8.18 : 1
'Natural speed' for length: 16.59 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 25
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 %): 18.04 ft / 5.50 m
- Mid (65 %): 18.04 ft / 5.50 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: 15.31 ft / 4.67 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 95.1 %
- Above water (accommodation/working, high = better): 171.2 %
Waterplane Area: 5,748 Square feet or 534 Square metres
Displacement factor (Displacement / loading): 154 %
Structure weight / hull surface area: 45 lbs/sq ft or 219 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.83
- Longitudinal: 4.93
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Project 707 Coastal Tanker
ARA Dona Elora
ARA Dona Stella
ARA Dona Irma

400 tons, 43.5 x 7 x 4.2m, 8 kts, 1x 500hp diesel, 250 tons fuel capacity


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Project 710 Large Tanker
ARA Dona Dorothea

5,750 tons (22,050 tons full load), 158 x 20.75 x 9.2m, 15kts, two steam turbines 10,000hp


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Project 711 Harbour Tug (6 built TG-1 to TG-4)
70 tons, 19.5 x 5.1 x 2.3m, 11 kts, 1x 200hp diesel, 7 crew, 1x 13mm HMG

Project 708/ 708A, Argentina Destroyer Tender/ Repair Ship laid down 1938

Displacement:
7,531 t light; 7,710 t standard; 8,227 t normal; 8,641 t full load

Dimensions: Length overall / water x beam x draught
414.44 ft / 410.11 ft x 78.74 ft x 19.69 ft (normal load)
126.32 m / 125.00 m x 24.00 m x 6.00 m

Armament:
2 - 3.94" / 100 mm guns (1x2 guns), 30.42lbs / 13.80kg shells, 1933 Model
Dual purpose guns in deck mount
on centreline forward
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 75 lbs / 34 kg
Shells per gun, main battery: 300

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: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 14,500 shp / 10,817 Kw = 20.12 kts
Range 8,000nm at 12.00 kts
Bunker at max displacement = 932 tons

Complement:
431 - 561

Cost:
£1.844 million / $7.374 million

Distribution of weights at normal displacement:
Armament: 9 tons, 0.1 %
Armour: 5 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 397 tons, 4.8 %
Hull, fittings & equipment: 2,620 tons, 31.8 %
Fuel, ammunition & stores: 696 tons, 8.5 %
Miscellaneous weights: 4,500 tons, 54.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,797 lbs / 6,712 Kg = 485.0 x 3.9 " / 100 mm shells or 2.5 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 4.1 ft / 1.3 m
Roll period: 16.3 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.453
Length to Beam Ratio: 5.21 : 1
'Natural speed' for length: 20.25 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 30
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: 24.61 ft / 7.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (50 %): 22.97 ft / 7.00 m
- Quarterdeck (15 %): 11.48 ft / 3.50 m (22.97 ft / 7.00 m before break)
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 21.37 ft / 6.52 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 76.7 %
- Above water (accommodation/working, high = better): 209.6 %
Waterplane Area: 20,649 Square feet or 1,918 Square metres
Displacement factor (Displacement / loading): 153 %
Structure weight / hull surface area: 88 lbs/sq ft or 431 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.89
- Longitudinal: 2.71
- 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

Project 708: ARA Cabo San Antonio and ARA Cabo San Francisco de Paula are destroyer tenders equipped with stores, a bakery, hospital, a foundry and machine shops with milling and grinding machines.

Project 708A: ARA Cabo San Gonzalo is a repair ship equipped with a foundry, two furnaces, a coppersmiths shop, plumbers shop , carpenters shop, heavy and light machine shops and electrical and torpedo repair shops.


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ARA Delphin

Project 708B, Argentina Submarine Tender laid down 1945

Displacement:
7,560 t light; 7,739 t standard; 8,227 t normal; 8,618 t full load

Dimensions: Length overall / water x beam x draught
414.44 ft / 410.11 ft x 78.74 ft x 19.69 ft (normal load)
126.32 m / 125.00 m x 24.00 m x 6.00 m

Armament:
2 - 3.94" / 100 mm guns (1x2 guns), 30.42lbs / 13.80kg shells, 1933 Model
Dual purpose guns in deck mount
on centreline forward
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 75 lbs / 34 kg
Shells per gun, main battery: 300

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 - -
3rd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 14,500 shp / 10,817 Kw = 20.12 kts
Range 8,000nm at 12.00 kts
Bunker at max displacement = 879 tons

Complement:
431 - 561

Cost:
£2.237 million / $8.948 million

Distribution of weights at normal displacement:
Armament: 9 tons, 0.1 %
Armour: 5 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 366 tons, 4.5 %
Hull, fittings & equipment: 2,614 tons, 31.8 %
Fuel, ammunition & stores: 667 tons, 8.1 %
Miscellaneous weights: 4,565 tons, 55.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,796 lbs / 6,711 Kg = 484.9 x 3.9 " / 100 mm shells or 2.5 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 4.1 ft / 1.2 m
Roll period: 16.4 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.453
Length to Beam Ratio: 5.21 : 1
'Natural speed' for length: 20.25 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 30
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: 24.61 ft / 7.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (50 %): 22.97 ft / 7.00 m
- Quarterdeck (15 %): 11.48 ft / 3.50 m (22.97 ft / 7.00 m before break)
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 21.37 ft / 6.52 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 76.3 %
- Above water (accommodation/working, high = better): 209.6 %
Waterplane Area: 20,649 Square feet or 1,918 Square metres
Displacement factor (Displacement / loading): 153 %
Structure weight / hull surface area: 88 lbs/sq ft or 430 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.89
- Longitudinal: 2.70
- 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

Project 708B: equipped with stores, a bakery, hospital, a foundry and machine shops with milling and grinding machines, coppersmiths shop, torpedo stowage, battery charging facility and electrical and torpedo repair shops.

Parana Class

ARA Parana

Re-rated as a gunnery training ship in 1938.
[sister ARA Rosario decommissioned in 1938]

Parana has been rebuilt in 1935 to the following standard.Re-rated gunnery training ship 1938.
Parana, Argentina Armoured Gunboat (Post Repairs) laid down 1909 (Engine 1935)

Displacement:
972 t light; 1,016 t standard; 1,055 t normal; 1,086 t full load

Dimensions: Length overall / water x beam x draught
329.75 ft / 329.75 ft x 32.75 ft x 7.40 ft (normal load)
100.51 m / 100.51 m x 9.98 m x 2.26 m

Armament:
2 - 6.10" / 155 mm guns in single mounts, 97.00lbs / 44.00kg shells, 1932 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
4 - 2.95" / 75.0 mm guns in single mounts, 13.67lbs / 6.20kg shells, 1932 Model
Breech loading guns in deck mounts
on side ends, evenly spread
2 - 0.79" / 20.0 mm guns (1x2 guns), 0.24lbs / 0.11kg shells, 1932 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
4 - 0.51" / 13.0 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1932 Model
Machine guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 249 lbs / 113 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.56" / 65 mm 192.09 ft / 58.55 m 4.92 ft / 1.50 m
Ends: Unarmoured
Main Belt covers 90 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.59" / 15 mm -
2nd: 1.18" / 30 mm 0.59" / 15 mm -
3rd: 0.39" / 10 mm - -
4th: 0.39" / 10 mm - -

- Armour deck: 1.50" / 38 mm, Conning tower: 2.95" / 75 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,500 shp / 1,119 Kw = 15.09 kts
Range 2,700nm at 10.00 kts
Bunker at max displacement = 71 tons

Complement:
92 - 120

Cost:
£0.069 million / $0.277 million

Distribution of weights at normal displacement:
Armament: 35 tons, 3.3 %
Armour: 319 tons, 30.2 %
- Belts: 102 tons, 9.7 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 17 tons, 1.6 %
- Armour Deck: 193 tons, 18.3 %
- Conning Tower: 7 tons, 0.6 %
Machinery: 43 tons, 4.0 %
Hull, fittings & equipment: 576 tons, 54.6 %
Fuel, ammunition & stores: 83 tons, 7.9 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,105 lbs / 2,316 Kg = 44.9 x 6.1 " / 155 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.23
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.23
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, raised quarterdeck
Block coefficient: 0.462
Length to Beam Ratio: 10.07 : 1
'Natural speed' for length: 18.16 kts
Power going to wave formation at top speed: 28 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): -5.00 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 (15 %): 19.69 ft / 6.00 m (13.12 ft / 4.00 m aft of break)
- Mid (50 %): 13.12 ft / 4.00 m
- Quarterdeck (15 %): 19.69 ft / 6.00 m (13.12 ft / 4.00 m before break)
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 15.09 ft / 4.60 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 39.8 %
- Above water (accommodation/working, high = better): 189.0 %
Waterplane Area: 6,958 Square feet or 646 Square metres
Displacement factor (Displacement / loading): 154 %
Structure weight / hull surface area: 43 lbs/sq ft or 211 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.87
- Longitudinal: 3.41
- 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

Almirante Irizar Project 712, Argentina Survey Ship laid down 1942

Displacement:
990 t light; 1,022 t standard; 1,244 t normal; 1,423 t full load

Dimensions: Length overall / water x beam x draught
265.94 ft / 262.47 ft x 33.63 ft x 10.99 ft (normal load)
81.06 m / 80.00 m x 10.25 m x 3.35 m

Armament:
2 - 3.94" / 100 mm guns in single mounts, 30.42lbs / 13.80kg shells, 1932 Model
Quick firing guns in deck mounts
on centreline, all forward, 1 raised mount
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on centreline, all aft, all raised mounts - 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, all raised mounts - superfiring
Weight of broadside 64 lbs / 29 kg
Shells per gun, main battery: 175

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Ends: Unarmoured

- Torpedo Bulkhead:
1.97" / 50 mm 262.47 ft / 80.00 m 10.99 ft / 3.35 m

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 5,000 shp / 3,730 Kw = 20.08 kts
Range 6,500nm at 15.00 kts
Bunker at max displacement = 401 tons

Complement:
104 - 136

Cost:
£0.380 million / $1.520 million

Distribution of weights at normal displacement:
Armament: 8 tons, 0.6 %
Armour: 213 tons, 17.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 210 tons, 16.9 %
- Armament: 3 tons, 0.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 131 tons, 10.5 %
Hull, fittings & equipment: 509 tons, 40.9 %
Fuel, ammunition & stores: 254 tons, 20.4 %
Miscellaneous weights: 130 tons, 10.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,221 lbs / 1,915 Kg = 138.4 x 3.9 " / 100 mm shells or 1.8 torpedoes
Stability (Unstable if below 1.00): 1.33
Metacentric height 1.6 ft / 0.5 m
Roll period: 11.1 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.07
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.449
Length to Beam Ratio: 7.80 : 1
'Natural speed' for length: 16.20 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 25
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: 19.69 ft / 6.00 m
- Forecastle (20 %): 18.04 ft / 5.50 m
- Mid (65 %): 18.04 ft / 5.50 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: 15.31 ft / 4.67 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 127.6 %
- Above water (accommodation/working, high = better): 162.7 %
Waterplane Area: 5,625 Square feet or 523 Square metres
Displacement factor (Displacement / loading): 186 %
Structure weight / hull surface area: 45 lbs/sq ft or 218 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.83
- Longitudinal: 5.07
- Overall: 1.00
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

Misc Weight
60 tons for survey team qaurters
40 tons for survey gear and extra deck handling equipment
20 tons for growth (reserved for installation of A/S weapons in wartime)

Torpedo Bulkhead simulates ice strengthened hull



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Project 715 Coastal Survey Craft

ARA Cormoran
ARA Petrel


Project 715, Argentina Coastal Survey Craft laid down 1944

Displacement:
156 t light; 160 t standard; 192 t normal; 218 t full load

Dimensions: Length overall / water x beam x draught
149.13 ft / 144.36 ft x 21.33 ft x 5.74 ft (normal load)
45.46 m / 44.00 m x 6.50 m x 1.75 m

Armament:
1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1941 Model
Anti-aircraft gun in deck mount
on centreline forward
4 - 0.31" / 7.9 mm guns (2x2 guns), 0.02lbs / 0.01kg shells, 1933 Model
Machine guns in deck mounts
on side, all forward
Weight of broadside 2 lbs / 1 kg
Shells per gun, main battery: 250

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,000 shp / 746 Kw = 17.84 kts
Range 5,500nm at 12.00 kts
Bunker at max displacement = 58 tons

Complement:
25 - 33

Cost:
£0.062 million / $0.247 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.1 %
Armour: 0 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 26 tons, 13.3 %
Hull, fittings & equipment: 96 tons, 50.2 %
Fuel, ammunition & stores: 36 tons, 19.0 %
Miscellaneous weights: 33 tons, 17.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
596 lbs / 270 Kg = 385.8 x 1.5 " / 37 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 0.6 ft / 0.2 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.87

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.380
Length to Beam Ratio: 6.77 : 1
'Natural speed' for length: 14.47 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 38
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: 13.12 ft / 4.00 m
- Forecastle (20 %): 10.50 ft / 3.20 m
- Mid (50 %): 9.35 ft / 2.85 m
- Quarterdeck (15 %): 9.35 ft / 2.85 m
- Stern: 8.20 ft / 2.50 m
- Average freeboard: 9.88 ft / 3.01 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 63.7 %
- Above water (accommodation/working, high = better): 142.7 %
Waterplane Area: 1,947 Square feet or 181 Square metres
Displacement factor (Displacement / loading): 223 %
Structure weight / hull surface area: 25 lbs/sq ft or 124 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.80
- Longitudinal: 7.74
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Class Names: Cormoran, Petrel

ARA General San Martin

Rebuilt ex-Brazilian Margay Class destroyer brought in 1942.

Project 451C (ex-Margay Class), Brazil School Ship (Argentine Refit 1942) laid down 1932 (Engine 1942)

Displacement:
2,118 t light; 2,204 t standard; 2,602 t normal; 2,919 t full load

Dimensions: Length overall / water x beam x draught
401.26 ft / 390.00 ft x 40.00 ft x 13.00 ft (normal load)
122.30 m / 118.87 m x 12.19 m x 3.96 m

Armament:
2 - 5.12" / 130 mm guns (1x2 guns), 70.55lbs / 32.00kg shells, 1937 Model
Dual purpose guns in a deck mount with hoist
on centreline forward
2 - 4.53" / 115 mm guns (1x2 guns), 55.12lbs / 25.00kg shells, 1937 Model
Dual purpose guns in a deck mount with hoist
on centreline forward, all raised guns - superfiring
12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 271 lbs / 123 kg
Shells per gun, main battery: 200
4 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.00" / 25 mm 390.00 ft / 118.87 m 8.00 ft / 2.44 m
Ends: Unarmoured
Main Belt covers 154 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm 2.00" / 51 mm
2nd: 1.97" / 50 mm 0.98" / 25 mm 2.00" / 51 mm
3rd: 0.39" / 10 mm - -
4th: 0.39" / 10 mm - -

- Armour deck: 0.25" / 6 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 3 shafts, 40,000 shp / 29,840 Kw = 31.39 kts
Range 13,000nm at 12.00 kts
Bunker at max displacement = 715 tons

Complement:
181 - 236

Cost:
£1.108 million / $4.432 million

Distribution of weights at normal displacement:
Armament: 31 tons, 1.2 %
Armour: 181 tons, 7.0 %
- Belts: 115 tons, 4.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 19 tons, 0.7 %
- Armour Deck: 46 tons, 1.8 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,027 tons, 39.5 %
Hull, fittings & equipment: 699 tons, 26.9 %
Fuel, ammunition & stores: 484 tons, 18.6 %
Miscellaneous weights: 180 tons, 6.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,065 lbs / 483 Kg = 15.9 x 5.1 " / 130 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.26
Metacentric height 1.9 ft / 0.6 m
Roll period: 12.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.31
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.449
Length to Beam Ratio: 9.75 : 1
'Natural speed' for length: 19.75 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 58
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 %): 16.00 ft / 4.88 m
- Mid (50 %): 16.00 ft / 4.88 m
- Quarterdeck (15 %): 16.00 ft / 4.88 m
- Stern: 16.00 ft / 4.88 m
- Average freeboard: 16.48 ft / 5.02 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 144.9 %
- Above water (accommodation/working, high = better): 137.8 %
Waterplane Area: 9,943 Square feet or 924 Square metres
Displacement factor (Displacement / loading): 96 %
Structure weight / hull surface area: 38 lbs/sq ft or 184 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.59
- Overall: 0.56
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Refit Changes
120mm mounts replaced by one 130mm Mk III DP mount and one 115mm Mk III DP mount
Removal of upper torpedo tube mount
Removal of Z mount
New main director
Addition of RDF
Addition of new boilers and tubines
Addition of 1,000hp diesel engine to drive third shaft (max speed 11 kts on diesel
New deckhouse aft with accomodation for 50 cadets and classroom
Landing spot abve deckhouse
Refurbishment of internal fittings

Misc Weight Breakdown
9 tons for one quad torpedo mount and four torpedoes
15 tons RDF
100 tons for accomodation for 50 cadets
26 tons for diesel and gearbox
25 tons for strengthened deck for landing spot
5 tons for classroom spaces

Project 713 Fulton, Argentina Mine Warfare Training Ship laid down 1944

Displacement:
378 t light; 392 t standard; 427 t normal; 455 t full load

Dimensions: Length overall / water x beam x draught
209.62 ft / 203.41 ft x 24.61 ft x 6.23 ft (normal load)
63.89 m / 62.00 m x 7.50 m x 1.90 m

Armament:
1 - 3.94" / 100 mm guns in single mounts, 39.68lbs / 18.00kg shells, 1944 Model
Quick firing gun in deck mount
on centreline forward
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
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 forward, all raised mounts - superfiring
Weight of broadside 43 lbs / 20 kg
Shells per gun, main battery: 200

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 0.20" / 5 mm -

- Conning tower: 1.97" / 50 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,000 shp / 746 Kw = 15.32 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 63 tons

Complement:
46 - 61

Cost:
£0.137 million / $0.549 million

Distribution of weights at normal displacement:
Armament: 4 tons, 1.0 %
Armour: 5 tons, 1.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 2 tons, 0.6 %
Machinery: 26 tons, 6.0 %
Hull, fittings & equipment: 194 tons, 45.4 %
Fuel, ammunition & stores: 49 tons, 11.4 %
Miscellaneous weights: 150 tons, 35.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,119 lbs / 507 Kg = 36.7 x 3.9 " / 100 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 0.7 ft / 0.2 m
Roll period: 12.2 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.12
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.479
Length to Beam Ratio: 8.27 : 1
'Natural speed' for length: 14.26 kts
Power going to wave formation at top speed: 44 %
Trim (Max stability = 0, Max steadiness = 100): 25
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: 17.06 ft / 5.20 m
- Forecastle (14 %): 16.40 ft / 5.00 m
- Mid (38 %): 16.40 ft / 5.00 m (7.55 ft / 2.30 m aft of break)
- Quarterdeck (20 %): 7.55 ft / 2.30 m
- Stern: 7.55 ft / 2.30 m
- Average freeboard: 10.95 ft / 3.34 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 66.7 %
- Above water (accommodation/working, high = better): 145.9 %
Waterplane Area: 3,273 Square feet or 304 Square metres
Displacement factor (Displacement / loading): 178 %
Structure weight / hull surface area: 32 lbs/sq ft or 154 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.86
- Longitudinal: 4.02
- 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

Misc weight includes interchangable minesweeping and minelaying gear. Up to 60 mines can be carried.
20 tons for teaching spaces

Beagle Project 714, Argentina Transport laid down 1944

Displacement:
3,458 t light; 3,561 t standard; 5,106 t normal; 6,342 t full load

Dimensions: Length overall / water x beam x draught
395.34 ft / 390.42 ft x 59.06 ft x 14.76 ft (normal load)
120.50 m / 119.00 m x 18.00 m x 4.50 m

Armament:
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 aft, all raised mounts - superfiring
Weight of broadside 0 lbs / 0 kg
Shells per gun, main battery: 2,000

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 4,000 shp / 2,984 Kw = 15.27 kts
Range 35,000nm at 12.00 kts
Bunker at max displacement = 2,781 tons

Complement:
301 - 392

Cost:
£0.911 million / $3.643 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 102 tons, 2.0 %
Hull, fittings & equipment: 1,706 tons, 33.4 %
Fuel, ammunition & stores: 1,648 tons, 32.3 %
Miscellaneous weights: 1,650 tons, 32.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,211 lbs / 8,261 Kg = 74,607.8 x 0.8 " / 20 mm shells or 3.7 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 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.525
Length to Beam Ratio: 6.61 : 1
'Natural speed' for length: 19.76 kts
Power going to wave formation at top speed: 33 %
Trim (Max stability = 0, Max steadiness = 100): 35
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: 27.89 ft / 8.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (50 %): 19.69 ft / 6.00 m
- Quarterdeck (15 %): 19.69 ft / 6.00 m
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 21.23 ft / 6.47 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 42.9 %
- Above water (accommodation/working, high = better): 203.3 %
Waterplane Area: 15,719 Square feet or 1,460 Square metres
Displacement factor (Displacement / loading): 275 %
Structure weight / hull surface area: 69 lbs/sq ft or 336 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.64
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Class Names: Canal Beagle, Cabo de Hornos

Range is 8000nm at 12 kts (671 tons bunker)

Cargo Sim
1,500 tons misc weight as high cargo plus 2,110 tons bunkerage as low cargo, total 3,610 tons of cargo
100 tons misc weight reserved for cranes and deck equipment and 50 tons for 25 passengers

ARA Alferez de Navio Gomez

Project 716, Argentina River Tender laid down 1945

Displacement:
384 t light; 394 t standard; 470 t normal; 532 t full load

Dimensions: Length overall / water x beam x draught
140.40 ft / 131.23 ft x 29.53 ft x 8.20 ft (normal load)
42.79 m / 40.00 m x 9.00 m x 2.50 m

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 516 shp / 385 Kw = 12.03 kts
Range 10,000nm at 10.00 kts
Bunker at max displacement = 138 tons

Complement:
49 - 65

Cost:
£0.106 million / $0.422 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 13 tons, 2.8 %
Hull, fittings & equipment: 121 tons, 25.8 %
Fuel, ammunition & stores: 86 tons, 18.3 %
Miscellaneous weights: 250 tons, 53.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
744 lbs / 338 Kg = 6.9 x 6 " / 152 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 0.9 ft / 0.3 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, raised quarterdeck
Block coefficient: 0.518
Length to Beam Ratio: 4.44 : 1
'Natural speed' for length: 11.46 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 14.76 ft / 4.50 m
- Forecastle (20 %): 14.76 ft / 4.50 m (6.56 ft / 2.00 m aft of break)
- Mid (50 %): 6.56 ft / 2.00 m
- Quarterdeck (20 %): 14.76 ft / 4.50 m (6.56 ft / 2.00 m before break)
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 9.84 ft / 3.00 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 67.5 %
- Above water (accommodation/working, high = better): 67.0 %
Waterplane Area: 2,625 Square feet or 244 Square metres
Displacement factor (Displacement / loading): 170 %
Structure weight / hull surface area: 30 lbs/sq ft or 147 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 4.14
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Excellent seaboat, comfortable, rides out heavy weather easily

Misc Weight:
20 tons for crane
80 tons for metalworking and woodworking workshops
150 tons for cargo
Normal range 1000nm @ 6kts(8 tons), rest (130 tons) is spare bunkerage for refuelling small vessels or for generator use

Project 717, Argentina Transport laid down 1946

ARA Bahia San Blas

Displacement:
4,109 t light; 4,235 t standard; 5,888 t normal; 7,210 t full load

Dimensions: Length overall / water x beam x draught
430.85 ft / 426.51 ft x 59.06 ft x 15.58 ft (normal load)
131.32 m / 130.00 m x 18.00 m x 4.75 m

Armament:
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
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, all forward, all raised mounts - superfiring
Weight of broadside 7 lbs / 3 kg
Shells per gun, main battery: 2,000

Machinery:
Diesel Internal combustion motors,
Geared drive, 1 shaft, 5,000 shp / 3,730 Kw = 15.96 kts
Range 35,000nm at 12.00 kts
Bunker at max displacement = 2,975 tons

Complement:
335 - 436

Cost:
£1.149 million / $4.595 million

Distribution of weights at normal displacement:
Armament: 1 tons, 0.0 %
Machinery: 125 tons, 2.1 %
Hull, fittings & equipment: 1,983 tons, 33.7 %
Fuel, ammunition & stores: 1,779 tons, 30.2 %
Miscellaneous weights: 2,000 tons, 34.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
19,150 lbs / 8,686 Kg = 12,391.0 x 1.5 " / 37 mm shells or 3.6 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 3.0 ft / 0.9 m
Roll period: 14.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.525
Length to Beam Ratio: 7.22 : 1
'Natural speed' for length: 20.65 kts
Power going to wave formation at top speed: 32 %
Trim (Max stability = 0, Max steadiness = 100): 35
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: 24.61 ft / 7.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (50 %): 21.33 ft / 6.50 m
- Quarterdeck (15 %): 21.33 ft / 6.50 m
- Stern: 21.33 ft / 6.50 m
- Average freeboard: 22.03 ft / 6.72 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 45.3 %
- Above water (accommodation/working, high = better): 204.6 %
Waterplane Area: 16,581 Square feet or 1,540 Square metres
Displacement factor (Displacement / loading): 261 %
Structure weight / hull surface area: 71 lbs/sq ft or 349 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.55
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Class Names: Bahia San Blas

Range is 10000nm at 12 kts (493 tons bunker)

Capacity Sim
1,160 tons bunkerage as low cargo
900 tons misc weight as high cargo, total cargo 2,060 tons
900 tons misc weight for 450 troops
200 tons misc weight for cranes, deck equipment, 4x LCVP and davits etc.

ARA Proveedor, Project 720, Argentina Fleet Replenishment Ship laid down 1948

Displacement:
9,459 t light; 9,709 t standard; 12,081 t normal; 13,978 t full load

Dimensions: Length overall / water x beam x draught
639.82 ft / 623.36 ft x 73.98 ft x 18.86 ft (normal load)
195.02 m / 190.00 m x 22.55 m x 5.75 m

Armament:
2 - 3.94" / 100 mm guns (1x2 guns), 30.42lbs / 13.80kg shells, 1933 Model
Dual purpose guns in deck mount
on centreline aft
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all aft, all raised mounts - superfiring
4 - 0.79" / 20.0 mm guns in single mounts, 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 68 lbs / 31 kg
Shells per gun, main battery: 200

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, 11,250 shp / 8,393 Kw = 18.02 kts
Range 17,000nm at 16.00 kts
Bunker at max displacement = 4,269 tons

Complement:
576 - 749

Cost:
£2.808 million / $11.233 million

Distribution of weights at normal displacement:
Armament: 9 tons, 0.1 %
Armour: 5 tons, 0.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 275 tons, 2.3 %
Hull, fittings & equipment: 3,870 tons, 32.0 %
Fuel, ammunition & stores: 2,622 tons, 21.7 %
Miscellaneous weights: 5,300 tons, 43.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
24,142 lbs / 10,951 Kg = 791.2 x 3.9 " / 100 mm shells or 3.7 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 3.7 ft / 1.1 m
Roll period: 16.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.55

Hull form characteristics:
Hull has raised forecastle, raised quarterdeck
Block coefficient: 0.486
Length to Beam Ratio: 8.43 : 1
'Natural speed' for length: 24.97 kts
Power going to wave formation at top speed: 27 %
Trim (Max stability = 0, Max steadiness = 100): 45
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 8.99 ft / 2.74 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27.89 ft / 8.50 m
- Forecastle (17 %): 24.61 ft / 7.50 m (16.40 ft / 5.00 m aft of break)
- Mid (50 %): 16.40 ft / 5.00 m
- Quarterdeck (15 %): 21.33 ft / 6.50 m (16.40 ft / 5.00 m before break)
- Stern: 21.33 ft / 6.50 m
- Average freeboard: 18.76 ft / 5.72 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 56.6 %
- Above water (accommodation/working, high = better): 164.6 %
Waterplane Area: 30,342 Square feet or 2,819 Square metres
Displacement factor (Displacement / loading): 204 %
Structure weight / hull surface area: 90 lbs/sq ft or 440 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.05
- Longitudinal: 0.99
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Range is 16,000nm at 16kts (bunkerage 3,780 tons), remaining 489 tons is transferable fuel (oil fuel or aviation fuel)

Misc Weight
5 tons for one surface search RDF set
250 tons for cranes and underway replenishment equipment
3,000 tons for dry stores
750 tons for frozen stores and refridgeration equipment
750 tons ammunition
250 tons for workshops
250 tons for extra cabins
45 tons spare

Project 722 Class, Argentina Landing Ship Tank laid down 1948

Displacement:
2,644 t light; 2,721 t standard; 3,209 t normal; 3,599 t full load

Dimensions: Length overall / water x beam x draught
347.84 ft / 344.49 ft x 55.12 ft x 9.84 ft (normal load)
106.02 m / 105.00 m x 16.80 m x 3.00 m

Armament:
1 - 4.53" / 115 mm guns in single mounts, 55.12lbs / 25.00kg shells, 1933 Model
Dual purpose gun in a deck mount with hoist
on centreline aft
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 forward
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 63 lbs / 29 kg
Shells per gun, main battery: 350

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

- Conning tower: 1.97" / 50 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 4,000 shp / 2,984 Kw = 16.63 kts
Range 8,800nm at 15.00 kts
Bunker at max displacement = 878 tons

Complement:
213 - 277

Cost:
£0.834 million / $3.338 million

Distribution of weights at normal displacement:
Armament: 7 tons, 0.2 %
Armour: 14 tons, 0.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 9 tons, 0.3 %
Machinery: 98 tons, 3.0 %
Hull, fittings & equipment: 1,168 tons, 36.4 %
Fuel, ammunition & stores: 565 tons, 17.6 %
Miscellaneous weights: 1,357 tons, 42.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
9,117 lbs / 4,135 Kg = 196.5 x 4.5 " / 115 mm shells or 2.2 torpedoes
Stability (Unstable if below 1.00): 1.22
Metacentric height 2.9 ft / 0.9 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.81

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.601
Length to Beam Ratio: 6.25 : 1
'Natural speed' for length: 21.78 kts
Power going to wave formation at top speed: 41 %
Trim (Max stability = 0, Max steadiness = 100): 39
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: 19.03 ft / 5.80 m
- Forecastle (20 %): 15.75 ft / 4.80 m
- Mid (50 %): 15.75 ft / 4.80 m
- Quarterdeck (35 %): 15.75 ft / 4.80 m
- Stern: 15.75 ft / 4.80 m
- Average freeboard: 16.01 ft / 4.88 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 58.7 %
- Above water (accommodation/working, high = better): 204.0 %
Waterplane Area: 14,487 Square feet or 1,346 Square metres
Displacement factor (Displacement / loading): 198 %
Structure weight / hull surface area: 61 lbs/sq ft or 299 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.74
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Class Names: Punta Medanos, Punta Delgada

Electronic Equipment:
One Phillips high-definition surface search set

Project 723, Argentina MTB Tender laid down 1949

Displacement:
578 t light; 596 t standard; 681 t normal; 749 t full load

Dimensions: Length overall / water x beam x draught
206.30 ft / 196.85 ft x 32.81 ft x 8.20 ft (normal load)
62.88 m / 60.00 m x 10.00 m x 2.50 m

Armament:
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mount
on centreline forward
2 - 0.51" / 13.0 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1936 Model
Machine guns in deck mounts
on side, all aft, all raised mounts - superfiring
Weight of broadside 3 lbs / 1 kg
Shells per gun, main battery: 2,000

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,500 shp / 1,119 Kw = 15.70 kts
Range 10,000nm at 10.00 kts
Bunker at max displacement = 154 tons

Complement:
66 - 86

Cost:
£0.196 million / $0.783 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.1 %
Armour: 1 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 36 tons, 5.3 %
Hull, fittings & equipment: 211 tons, 30.9 %
Fuel, ammunition & stores: 103 tons, 15.1 %
Miscellaneous weights: 330 tons, 48.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,077 lbs / 488 Kg = 696.6 x 1.5 " / 37 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 1.2 ft / 0.4 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.67

Hull form characteristics:
Hull has raised forecastle, raised quarterdeck
Block coefficient: 0.450
Length to Beam Ratio: 6.00 : 1
'Natural speed' for length: 14.03 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 30
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.40 ft / 5.00 m
- Forecastle (20 %): 14.76 ft / 4.50 m (6.56 ft / 2.00 m aft of break)
- Mid (50 %): 6.56 ft / 2.00 m
- Quarterdeck (20 %): 14.76 ft / 4.50 m (6.56 ft / 2.00 m before break)
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 9.97 ft / 3.04 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 71.7 %
- Above water (accommodation/working, high = better): 78.0 %
Waterplane Area: 4,120 Square feet or 383 Square metres
Displacement factor (Displacement / loading): 168 %
Structure weight / hull surface area: 34 lbs/sq ft or 168 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.24
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Class Names: El Austral, Atlantis

Misc Weight:
25 tons for crane
150 tons for workshops
150 tons for cargo/ reload torpedoes
5 tons for Philips surface search RDF set
Normal range 2500nm @ 10kts(43 tons), rest (112 tons) is petrol bunkerage for refuelling MTBs

Project 725, Argentina Tanker laid down 1949

Displacement:
1,985 t light; 2,070 t standard; 3,851 t normal; 5,276 t full load

Dimensions: Length overall / water x beam x draught
319.30 ft / 311.68 ft x 47.57 ft x 15.49 ft (normal load)
97.32 m / 95.00 m x 14.50 m x 4.72 m

Armament:
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mount
on centreline aft
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 forward
Weight of broadside 4 lbs / 2 kg
Shells per gun, main battery: 3,500

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 1 shaft, 1,500 shp / 1,119 Kw = 12.05 kts
Range 50,000nm at 12.00 kts
Bunker at max displacement = 3,206 tons

Complement:
243 - 317

Cost:
£0.572 million / $2.288 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Armour: 1 tons, 0.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 36 tons, 0.9 %
Hull, fittings & equipment: 992 tons, 25.8 %
Fuel, ammunition & stores: 1,866 tons, 48.5 %
Miscellaneous weights: 955 tons, 24.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,626 lbs / 6,181 Kg = 8,816.3 x 1.5 " / 37 mm shells or 4.1 torpedoes
Stability (Unstable if below 1.00): 1.24
Metacentric height 2.4 ft / 0.7 m
Roll period: 12.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, raised quarterdeck
Block coefficient: 0.587
Length to Beam Ratio: 6.55 : 1
'Natural speed' for length: 17.65 kts
Power going to wave formation at top speed: 30 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.61 ft / 7.50 m
- Forecastle (30 %): 21.33 ft / 6.50 m (13.12 ft / 4.00 m aft of break)
- Mid (50 %): 13.12 ft / 4.00 m
- Quarterdeck (30 %): 20.67 ft / 6.30 m (13.12 ft / 4.00 m before break)
- Stern: 20.67 ft / 6.30 m
- Average freeboard: 18.24 ft / 5.56 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 31.8 %
- Above water (accommodation/working, high = better): 107.6 %
Waterplane Area: 10,457 Square feet or 971 Square metres
Displacement factor (Displacement / loading): 373 %
Structure weight / hull surface area: 55 lbs/sq ft or 268 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.89
- Longitudinal: 3.00
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Class Names: San Luis, Mercedes

Misc Weight includes 100 tons for at-sea refuelling gear and derricks and 5 tons for a Phillips RDF set