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Saturday, June 10th 2006, 10:01am

Cruceros de 1a Clas (1st Class Cruisers)

ARA Almirante Brown - decommissioned and sold to Turkey Q1/1945
[ARA Veinticinco de Mayo sunk 15/6/35]

Vienticinco de Mayo Class, Italy/ Argentina Heavy Cruiser laid down 1925

Displacement:
5,808 t light; 6,043 t standard; 6,904 t normal; 7,593 t full load

Dimensions: Length overall / water x beam x draught
539.26 ft / 524.93 ft x 52.49 ft x 19.49 ft (normal load)
164.37 m / 160.00 m x 16.00 m x 5.94 m

Armament:
6 - 7.48" / 190 mm guns (3x2 guns), 209.28lbs / 94.93kg shells, 1925 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
12 - 3.94" / 100 mm guns (6x2 guns), 30.51lbs / 13.84kg shells, 1925 Model
Quick firing guns in deck mounts with hoists
on side, all forward
14 - 1.46" / 37.0 mm guns (7x2 guns), 1.55lbs / 0.70kg shells, 1931 Model
Anti-aircraft guns in deck mounts
on side ends, majority forward
12 - 0.79" / 20.0 mm guns (2x6 guns), 0.24lbs / 0.11kg shells, 1925 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 1,646 lbs / 747 kg
Shells per gun, main battery: 100
6 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.76" / 70 mm 444.19 ft / 135.39 m 8.69 ft / 2.65 m
Ends: Unarmoured
Main Belt covers 130 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 1.97" / 50 mm 1.97" / 50 mm
2nd: 0.79" / 20 mm 0.79" / 20 mm 0.79" / 20 mm

- Armour deck: 0.98" / 25 mm, Conning tower: 2.36" / 60 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 70,003 shp / 52,223 Kw = 32.12 kts
Range 4,000nm at 20.00 kts
Bunker at max displacement = 1,550 tons

Complement:
378 - 492

Cost:
£2.272 million / $9.089 million

Distribution of weights at normal displacement:
Armament: 206 tons, 3.0 %
Armour: 932 tons, 13.5 %
- Belts: 424 tons, 6.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 169 tons, 2.4 %
- Armour Deck: 320 tons, 4.6 %
- Conning Tower: 18 tons, 0.3 %
Machinery: 2,273 tons, 32.9 %
Hull, fittings & equipment: 2,322 tons, 33.6 %
Fuel, ammunition & stores: 1,097 tons, 15.9 %
Miscellaneous weights: 75 tons, 1.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,110 lbs / 1,864 Kg = 19.6 x 7.5 " / 190 mm shells or 0.9 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 2.8 ft / 0.9 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.58
Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.450
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 22.91 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 51
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.33 ft / 6.50 m
- Forecastle (8 %): 19.69 ft / 6.00 m
- Mid (72 %): 19.69 ft / 6.00 m (11.48 ft / 3.50 m aft of break)
- Quarterdeck (8 %): 11.48 ft / 3.50 m
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 17.44 ft / 5.32 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 130.1 %
- Above water (accommodation/working, high = better): 133.5 %
Waterplane Area: 17,577 Square feet or 1,633 Square metres
Displacement factor (Displacement / loading): 96 %
Structure weight / hull surface area: 79 lbs/sq ft or 387 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.75
- Longitudinal: 1.22
- Overall: 0.79
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

Refit 1935: New twin 37mm mounts replacing singles, two quarterdeck, one centreline aft X position, either side aft deckhouse and two forward of fore 100mm guns. Two 6x20mm mounts abreast funnel. New searchlights and two more added.

This post has been edited 4 times, last edit by "Hood" (May 26th 2012, 11:13am)


2

Tuesday, July 25th 2006, 10:10pm

ARA General Belgrano
ARA Capitan Juan Domingo Peron
ARA Almirante Storni

General Belgrano, Capitan Juan Domingo Peron, Argentina/ Germany Light Cruiser laid down 1932

Displacement:
10,383 t light; 10,805 t standard; 11,886 t normal; 12,750 t full load

Dimensions: Length overall / water x beam x draught
637.98 ft / 623.36 ft x 65.62 ft x 20.34 ft (normal load)
194.46 m / 190.00 m x 20.00 m x 6.20 m

Armament:
15 - 5.91" / 150 mm guns (5x3 guns), 100.31lbs / 45.50kg shells, 1932 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 2 raised mounts - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 28.66lbs / 13.00kg shells, 1932 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread
16 - 1.46" / 37.0 mm guns (8x2 guns), 1.55lbs / 0.70kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 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 1,763 lbs / 799 kg
Shells per gun, main battery: 180
8 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 405.18 ft / 123.50 m 9.71 ft / 2.96 m
Ends: Unarmoured
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.72" / 120 mm 2.76" / 70 mm 4.72" / 120 mm
2nd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
3rd: 0.39" / 10 mm - -
4th: 0.39" / 10 mm - -

- Armour deck: 2.24" / 57 mm, Conning tower: 4.72" / 120 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 85,493 shp / 63,778 Kw = 32.50 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 1,945 tons

Complement:
568 - 739

Cost:
£4.125 million / $16.500 million

Distribution of weights at normal displacement:
Armament: 227 tons, 1.9 %
Armour: 2,605 tons, 21.9 %
- Belts: 777 tons, 6.5 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 598 tons, 5.0 %
- Armour Deck: 1,177 tons, 9.9 %
- Conning Tower: 53 tons, 0.4 %
Machinery: 2,523 tons, 21.2 %
Hull, fittings & equipment: 4,928 tons, 41.5 %
Fuel, ammunition & stores: 1,502 tons, 12.6 %
Miscellaneous weights: 100 tons, 0.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,434 lbs / 8,362 Kg = 179.0 x 5.9 " / 150 mm shells or 2.1 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 3.2 ft / 1.0 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.45
Seaboat quality (Average = 1.00): 1.29

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 9.50 : 1
'Natural speed' for length: 28.61 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 54
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: 31.17 ft / 9.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (45 %): 22.47 ft / 6.85 m
- Quarterdeck (15 %): 22.47 ft / 6.85 m
- Stern: 22.47 ft / 6.85 m
- Average freeboard: 23.29 ft / 7.10 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 85.4 %
- Above water (accommodation/working, high = better): 177.9 %
Waterplane Area: 28,340 Square feet or 2,633 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 109 lbs/sq ft or 532 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.61
- 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
Good seaboat, rides out heavy weather easily


Capitan Juan Domingo Peron and General Belgrano(Post battle damage repairs 1936), Argentina/ Germany Light Cruiser laid down 1932

Displacement:
10,383 t light; 10,805 t standard; 11,886 t normal; 12,750 t full load

Dimensions: Length overall / water x beam x draught
637.98 ft / 623.36 ft x 65.62 ft x 20.34 ft (normal load)
194.46 m / 190.00 m x 20.00 m x 6.20 m

Armament:
15 - 5.91" / 150 mm guns (5x3 guns), 100.31lbs / 45.50kg shells, 1932 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 2 raised mounts - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 28.66lbs / 13.00kg shells, 1932 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread
16 - 1.46" / 37.0 mm guns (8x2 guns), 1.55lbs / 0.70kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
30 - 0.79" / 20.0 mm guns (5x6 guns), 0.24lbs / 0.11kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 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 1,766 lbs / 801 kg
Shells per gun, main battery: 180
8 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 405.18 ft / 123.50 m 9.71 ft / 2.96 m
Ends: Unarmoured
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.72" / 120 mm 2.76" / 70 mm 4.72" / 120 mm
2nd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
3rd: 0.39" / 10 mm - -
4th: 0.39" / 10 mm 0.20" / 5 mm -

- Armour deck: 2.24" / 57 mm, Conning tower: 4.72" / 120 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 85,493 shp / 63,778 Kw = 32.50 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 1,945 tons

Complement:
568 - 739

Cost:
£4.127 million / $16.507 million

Distribution of weights at normal displacement:
Armament: 228 tons, 1.9 %
Armour: 2,606 tons, 21.9 %
- Belts: 777 tons, 6.5 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 599 tons, 5.0 %
- Armour Deck: 1,177 tons, 9.9 %
- Conning Tower: 53 tons, 0.4 %
Machinery: 2,523 tons, 21.2 %
Hull, fittings & equipment: 4,926 tons, 41.4 %
Fuel, ammunition & stores: 1,503 tons, 12.6 %
Miscellaneous weights: 100 tons, 0.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,415 lbs / 8,353 Kg = 178.8 x 5.9 " / 150 mm shells or 2.1 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 3.2 ft / 1.0 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.45
Seaboat quality (Average = 1.00): 1.29

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 9.50 : 1
'Natural speed' for length: 28.61 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 54
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: 31.17 ft / 9.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (45 %): 22.47 ft / 6.85 m
- Quarterdeck (15 %): 22.47 ft / 6.85 m
- Stern: 22.47 ft / 6.85 m
- Average freeboard: 23.29 ft / 7.10 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 85.5 %
- Above water (accommodation/working, high = better): 177.9 %
Waterplane Area: 28,340 Square feet or 2,633 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 109 lbs/sq ft or 532 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.61
- 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
Good seaboat, rides out heavy weather easily


****

General Belgrano, Capitan Juan Domingo Peron, Argentina/ Germany Light Cruiser laid down 1932

Displacement:
10,383 t light; 10,805 t standard; 11,886 t normal; 12,750 t full load

Dimensions: Length overall / water x beam x draught
637.98 ft / 623.36 ft x 65.62 ft x 20.34 ft (normal load)
194.46 m / 190.00 m x 20.00 m x 6.20 m

Armament:
15 - 5.91" / 150 mm guns (5x3 guns), 100.31lbs / 45.50kg shells, 1932 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 2 raised mounts - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 28.66lbs / 13.00kg shells, 1932 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread
16 - 1.46" / 37.0 mm guns (8x2 guns), 1.55lbs / 0.70kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1,763 lbs / 799 kg
Shells per gun, main battery: 180
8 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 405.18 ft / 123.50 m 9.71 ft / 2.96 m
Ends: Unarmoured
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.72" / 120 mm 2.76" / 70 mm 4.72" / 120 mm
2nd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
3rd: 0.39" / 10 mm 0.39" / 10 mm -
4th: 0.39" / 10 mm - -

- Armour deck: 2.24" / 57 mm, Conning tower: 4.72" / 120 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 85,493 shp / 63,778 Kw = 32.50 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 1,945 tons

Complement:
568 - 739

Cost:
£4.125 million / $16.500 million

Distribution of weights at normal displacement:
Armament: 227 tons, 1.9 %
Armour: 2,608 tons, 21.9 %
- Belts: 777 tons, 6.5 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 602 tons, 5.1 %
- Armour Deck: 1,177 tons, 9.9 %
- Conning Tower: 53 tons, 0.4 %
Machinery: 2,523 tons, 21.2 %
Hull, fittings & equipment: 4,924 tons, 41.4 %
Fuel, ammunition & stores: 1,502 tons, 12.6 %
Miscellaneous weights: 100 tons, 0.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,425 lbs / 8,357 Kg = 178.9 x 5.9 " / 150 mm shells or 2.1 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 3.2 ft / 1.0 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.45
Seaboat quality (Average = 1.00): 1.29

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 9.50 : 1
'Natural speed' for length: 28.61 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 54
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: 31.17 ft / 9.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (45 %): 22.47 ft / 6.85 m
- Quarterdeck (15 %): 22.47 ft / 6.85 m
- Stern: 22.47 ft / 6.85 m
- Average freeboard: 23.29 ft / 7.10 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 85.4 %
- Above water (accommodation/working, high = better): 177.9 %
Waterplane Area: 28,340 Square feet or 2,633 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 109 lbs/sq ft or 532 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.61
- 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
Good seaboat, rides out heavy weather easily

1947 Refit Notes
Removal of catapult and aircraft
Modernisation of 37mm and 20mm mounts with new pattern mounts
Refurbishment of internal fittings
Addition of RDF
One Chilean surface search set
One Chilean air search set
German fire-control sets on both main directors and two secondary directors

This post has been edited 5 times, last edit by "Hood" (May 26th 2012, 11:14am)


3

Monday, June 4th 2007, 9:09pm

La Argentina



ARA La Argentina

La Argentina, Argentina Heavy Cruiser laid down 1933

Displacement:
11,647 t light; 12,208 t standard; 13,283 t normal; 14,143 t full load

Dimensions: Length overall / water x beam x draught
634.11 ft / 623.36 ft x 67.26 ft x 21.49 ft (normal load)
193.28 m / 190.00 m x 20.50 m x 6.55 m

Armament:
12 - 7.48" / 190 mm guns (4x3 guns), 253.53lbs / 115.00kg shells, 1933 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 3.94" / 100 mm guns (6x2 guns), 30.51lbs / 13.84kg shells, 1931 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
12 - 0.79" / 20.0 mm guns (2x6 guns), 0.24lbs / 0.11kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, all forward, all raised mounts - superfiring
Weight of broadside 3,430 lbs / 1,556 kg
Shells per gun, main battery: 150
12 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 367.45 ft / 112.00 m 11.48 ft / 3.50 m
Ends: Unarmoured
Main Belt covers 91 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.72" / 120 mm 2.76" / 70 mm 2.76" / 70 mm
2nd: 0.79" / 20 mm 0.59" / 15 mm 1.18" / 30 mm
3rd: 0.39" / 10 mm - -
4th: 0.47" / 12 mm - -

- Armour deck: 2.76" / 70 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 93,000 shp / 69,378 Kw = 32.56 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 1,935 tons

Complement:
618 - 804

Cost:
£5.159 million / $20.637 million

Distribution of weights at normal displacement:
Armament: 362 tons, 2.7 %
Armour: 2,852 tons, 21.5 %
- Belts: 850 tons, 6.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 461 tons, 3.5 %
- Armour Deck: 1,503 tons, 11.3 %
- Conning Tower: 38 tons, 0.3 %
Machinery: 2,710 tons, 20.4 %
Hull, fittings & equipment: 5,643 tons, 42.5 %
Fuel, ammunition & stores: 1,636 tons, 12.3 %
Miscellaneous weights: 80 tons, 0.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
19,167 lbs / 8,694 Kg = 91.6 x 7.5 " / 190 mm shells or 2.1 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 3.4 ft / 1.0 m
Roll period: 15.2 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.73
Seaboat quality (Average = 1.00): 1.16

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.516
Length to Beam Ratio: 9.27 : 1
'Natural speed' for length: 28.61 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 52
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: 29.53 ft / 9.00 m
- Forecastle (18 %): 22.97 ft / 7.00 m
- Mid (50 %): 22.31 ft / 6.80 m
- Quarterdeck (18 %): 22.31 ft / 6.80 m
- Stern: 22.31 ft / 6.80 m
- Average freeboard: 23.01 ft / 7.01 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88.8 %
- Above water (accommodation/working, high = better): 153.3 %
Waterplane Area: 29,489 Square feet or 2,740 Square metres
Displacement factor (Displacement / loading): 118 %
Structure weight / hull surface area: 122 lbs/sq ft or 597 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.66
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

This post has been edited 1 times, last edit by "Hood" (May 26th 2012, 11:14am)


4

Thursday, October 16th 2008, 10:34pm

Project 208 Almirante Domecq Garcia

ARA Almirante Domecq Garcia

This ship is the fourth General Belgrano Class cruiser, the only one to be built in Argentina and modified to take account of wartime lessons.

Almirante Domecq Garcia, Argentina/ Germany Light Cruiser laid down 1936

Displacement:
10,422 t light; 10,844 t standard; 11,886 t normal; 12,719 t full load

Dimensions: Length overall / water x beam x draught
637.98 ft / 623.36 ft x 65.62 ft x 20.34 ft (normal load)
194.46 m / 190.00 m x 20.00 m x 6.20 m

Armament:
15 - 5.91" / 150 mm guns (5x3 guns), 100.31lbs / 45.50kg shells, 1932 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 2 raised mounts - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 28.66lbs / 13.00kg shells, 1932 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread
14 - 1.46" / 37.0 mm guns (7x2 guns), 1.55lbs / 0.70kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 6 raised mounts
24 - 0.79" / 20.0 mm guns (4x6 guns), 0.24lbs / 0.11kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 1,761 lbs / 799 kg
Shells per gun, main battery: 180
8 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.51" / 140 mm 393.70 ft / 120.00 m 9.71 ft / 2.96 m
Ends: Unarmoured
Main Belt covers 97 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.72" / 120 mm 2.76" / 70 mm 4.72" / 120 mm
2nd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
3rd: 0.39" / 10 mm 0.20" / 5 mm -
4th: 0.47" / 12 mm - -

- Armour deck: 2.36" / 60 mm, Conning tower: 4.72" / 120 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 85,458 shp / 63,752 Kw = 32.50 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 1,875 tons

Complement:
568 - 739

Cost:
£4.699 million / $18.796 million

Distribution of weights at normal displacement:
Armament: 227 tons, 1.9 %
Armour: 2,776 tons, 23.4 %
- Belts: 885 tons, 7.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 599 tons, 5.0 %
- Armour Deck: 1,239 tons, 10.4 %
- Conning Tower: 53 tons, 0.4 %
Machinery: 2,398 tons, 20.2 %
Hull, fittings & equipment: 4,921 tons, 41.4 %
Fuel, ammunition & stores: 1,464 tons, 12.3 %
Miscellaneous weights: 100 tons, 0.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
19,062 lbs / 8,646 Kg = 185.1 x 5.9 " / 150 mm shells or 2.2 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 3.1 ft / 1.0 m
Roll period: 15.6 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.29

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 9.50 : 1
'Natural speed' for length: 28.61 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 55
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: 31.17 ft / 9.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (45 %): 22.47 ft / 6.85 m
- Quarterdeck (15 %): 22.47 ft / 6.85 m
- Stern: 22.47 ft / 6.85 m
- Average freeboard: 23.29 ft / 7.10 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 82.1 %
- Above water (accommodation/working, high = better): 177.9 %
Waterplane Area: 28,340 Square feet or 2,633 Square metres
Displacement factor (Displacement / loading): 125 %
Structure weight / hull surface area: 109 lbs/sq ft or 531 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.62
- Overall: 0.99
Caution: Hull subject to strain in open-sea
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
Good seaboat, rides out heavy weather easily

This post has been edited 1 times, last edit by "Hood" (May 26th 2012, 11:14am)