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1

Thursday, September 30th 2004, 7:46am

Heavy Cruisers

List of Heavy Cruisers

CA Perseus
CA Zephyrus
CA Andromeda
CA Hades

CA Phoenix

CA Daedalus
CA Orthus
CA Odyssey
CA Aeneas

CA Dardanus
CA Menemosyne

CA Hector
CA Apollo

CA Ajax (ex-Volcan Osorno)

CA Menelaus
CA Peleus
CA Astyanax
CA Sarpedon

2

Thursday, November 18th 2004, 9:31am

Future project. Its expected that once the Phoenix completes extensive trials that another class of ships based on her design will be built.

3

Saturday, January 29th 2005, 10:02am

Perseus, Atlantean Heavy Cruiser laid down 1944

Displacement:
12,293 t light; 12,967 t standard; 14,435 t normal; 15,608 t full load

Dimensions: Length overall / water x beam x draught
692.90 ft / 670.00 ft x 68.50 ft x 21.50 ft (normal load)
211.20 m / 204.22 m x 20.88 m x 6.55 m

Armament:
12 - 8.00" / 203 mm guns (4x3 guns), 256.00lbs / 116.12kg shells, 1944 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 5.10" / 130 mm guns (4x2 guns), 66.33lbs / 30.09kg shells, 1944 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread, all raised mounts
12 - 2.95" / 74.9 mm guns (6x2 guns), 12.84lbs / 5.82kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
2 - 2.95" / 74.9 mm guns (1x2 guns), 12.84lbs / 5.82kg shells, 1944 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
36 - 0.79" / 20.0 mm guns (7 mounts), 0.24lbs / 0.11kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 28 raised guns
Weight of broadside 3,791 lbs / 1,720 kg
Shells per gun, main battery: 175
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 360.89 ft / 110.00 m 10.01 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 83 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7.99" / 203 mm 2.95" / 75 mm 3.94" / 100 mm
2nd: 1.97" / 50 mm 0.98" / 25 mm 1.57" / 40 mm
3rd: 0.04" / 1 mm - -
4th: 0.04" / 1 mm - -
5th: 0.04" / 1 mm - -

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 89,089 shp / 66,460 Kw = 32.00 kts
Range 10,800nm at 15.00 kts
Bunker at max displacement = 2,641 tons

Complement:
657 - 855

Cost:
£7.715 million / $30.860 million

Distribution of weights at normal displacement:
Armament: 474 tons, 3.3 %
Armour: 2,851 tons, 19.8 %
- Belts: 734 tons, 5.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 681 tons, 4.7 %
- Armour Deck: 1,405 tons, 9.7 %
- Conning Tower: 30 tons, 0.2 %
Machinery: 2,275 tons, 15.8 %
Hull, fittings & equipment: 6,393 tons, 44.3 %
Fuel, ammunition & stores: 2,142 tons, 14.8 %
Miscellaneous weights: 300 tons, 2.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
21,926 lbs / 9,945 Kg = 85.6 x 8.0 " / 203 mm shells or 2.4 torpedoes
Stability (Unstable if below 1.00): 1.03
Metacentric height 3.0 ft / 0.9 m
Roll period: 16.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.86
Seaboat quality (Average = 1.00): 1.21

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.512
Length to Beam Ratio: 9.78 : 1
'Natural speed' for length: 29.55 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.00 ft / 9.45 m
- Forecastle (20 %): 22.00 ft / 6.71 m (21.00 ft / 6.40 m aft of break)
- Mid (50 %): 22.00 ft / 6.71 m
- Quarterdeck (15 %): 22.00 ft / 6.71 m
- Stern: 22.00 ft / 6.71 m
- Average freeboard: 22.57 ft / 6.88 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 79.8 %
- Above water (accommodation/working, high = better): 172.5 %
Waterplane Area: 32,159 Square feet or 2,988 Square metres
Displacement factor (Displacement / loading): 126 %
Structure weight / hull surface area: 130 lbs/sq ft or 633 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.40
- Overall: 1.02
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

Ships in class: Perseus, Zephyrus, Andromeda, Hades
Misc weight breakdown:
120 tons for electronics (Radar ect.)
60 tons for 2 aircraft, 2 catipults and one crane
20 tons for 2x300 kw diesel generators
20 tons for localised AA electronic fire control
80 tons for damage control equipment

4

Saturday, January 29th 2005, 10:09am

Phoenix, Atlantean Heavy Cruiser laid down 1944

Displacement:
13,376 t light; 13,982 t standard; 15,520 t normal; 16,751 t full load

Dimensions: Length overall / water x beam x draught
714.32 ft / 692.00 ft x 70.00 ft x 22.25 ft (normal load)
217.72 m / 210.92 m x 21.34 m x 6.78 m

Armament:
9 - 8.00" / 203 mm guns (3x3 guns), 256.00lbs / 116.12kg shells, 1944 Model
Automatic rapid fire guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
8 - 5.10" / 130 mm guns (4x2 guns), 66.33lbs / 30.09kg shells, 1944 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread, all raised mounts
4 - 5.10" / 130 mm guns (2x2 guns), 66.33lbs / 30.09kg shells, 1944 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts
16 - 2.95" / 75.0 mm guns (8x2 guns), 12.87lbs / 5.84kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
32 - 0.79" / 20.0 mm guns (8x4 guns), 0.24lbs / 0.11kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 6 raised mounts
Weight of broadside 3,314 lbs / 1,503 kg
Shells per gun, main battery: 150
8 - 25.6" / 650.24 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 374.02 ft / 114.00 m 10.01 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 83 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.00" / 203 mm 2.95" / 75 mm 3.94" / 100 mm
2nd: 1.97" / 50 mm 0.98" / 25 mm 1.57" / 40 mm
3rd: 1.97" / 50 mm 0.98" / 25 mm 1.57" / 40 mm
4th: 0.98" / 25 mm - -
5th: 0.98" / 25 mm - -

- Armour deck: 2.36" / 60 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 97,460 shp / 72,705 Kw = 32.50 kts
Range 10,800nm at 15.00 kts
Bunker at max displacement = 2,769 tons

Complement:
694 - 903

Cost:
£8.160 million / $32.638 million

Distribution of weights at normal displacement:
Armament: 472 tons, 3.0 %
Armour: 2,817 tons, 18.2 %
- Belts: 759 tons, 4.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 544 tons, 3.5 %
- Armour Deck: 1,472 tons, 9.5 %
- Conning Tower: 42 tons, 0.3 %
Machinery: 2,489 tons, 16.0 %
Hull, fittings & equipment: 6,748 tons, 43.5 %
Fuel, ammunition & stores: 2,144 tons, 13.8 %
Miscellaneous weights: 850 tons, 5.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
22,923 lbs / 10,398 Kg = 89.5 x 8.0 " / 203 mm shells or 2.4 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 3.2 ft / 1.0 m
Roll period: 16.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.66
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.504
Length to Beam Ratio: 9.89 : 1
'Natural speed' for length: 30.03 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.00 ft / 9.14 m
- Forecastle (20 %): 22.00 ft / 6.71 m
- Mid (50 %): 22.00 ft / 6.71 m
- Quarterdeck (15 %): 22.00 ft / 6.71 m
- Stern: 22.00 ft / 6.71 m
- Average freeboard: 22.64 ft / 6.90 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 81.9 %
- Above water (accommodation/working, high = better): 169.0 %
Waterplane Area: 33,688 Square feet or 3,130 Square metres
Displacement factor (Displacement / loading): 125 %
Structure weight / hull surface area: 131 lbs/sq ft or 638 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.01
- Longitudinal: 1.37
- Overall: 1.04
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

Misc. weight breakdown:
300 tons for automation of 8" guns (100 tons per turret)
120 tons for electronics
100 tons for flagship facilities
60 tons for 2 aircraft, 2 catipults and one crane
20 tons for climate control equipment (air conditioning,ventalation and heating)
20 tons for localised AA electronic fire control
30 tons for Diesel electric generators (3x300kw diesel generators, 10 tons each)
200 tons for additional damage control equipment
Total: 850 tons

5

Saturday, January 29th 2005, 10:26am

Names: Daedalus, Orthos (Ex-Laomedon), Odyssey (ex-Deiphobus), Aeneas


Daedalus, Atlantean Heavy Cruiser laid down 1934

Displacement:
11,466 t light; 12,033 t standard; 13,389 t normal; 14,474 t full load

Dimensions: Length overall / water x beam x draught
683.45 ft / 665.00 ft x 68.00 ft x 20.40 ft (normal load)
208.32 m / 202.69 m x 20.73 m x 6.22 m

Armament:
12 - 8.00" / 203 mm guns (4x3 guns), 256.00lbs / 116.12kg shells, 1934 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 3.95" / 100 mm guns (6x2 guns), 30.81lbs / 13.98kg shells, 1934 Model
Dual purpose guns in deck mounts
on side, evenly spread, all raised mounts
12 - 1.58" / 40.0 mm guns (6x2 guns), 1.95lbs / 0.88kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
24 - 0.79" / 20.1 mm guns (6x4 guns), 0.25lbs / 0.11kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0.50" / 12.7 mm guns (6x2 guns), 0.06lbs / 0.03kg shells, 1934 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 3,472 lbs / 1,575 kg
Shells per gun, main battery: 150
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 362.00 ft / 110.34 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 84 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.50" / 140 mm 3.15" / 80 mm 3.95" / 100 mm
2nd: 1.00" / 25 mm - -

- Armour deck: 2.00" / 51 mm, Conning tower: 1.58" / 40 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 80,298 shp / 59,903 Kw = 31.51 kts
Range 9,500nm at 15.00 kts
Bunker at max displacement = 2,441 tons

Complement:
622 - 809

Cost:
£5.347 million / $21.389 million

Distribution of weights at normal displacement:
Armament: 434 tons, 3.2 %
Armour: 2,538 tons, 19.0 %
- Belts: 734 tons, 5.5 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 617 tons, 4.6 %
- Armour Deck: 1,168 tons, 8.7 %
- Conning Tower: 19 tons, 0.1 %
Machinery: 2,310 tons, 17.3 %
Hull, fittings & equipment: 6,034 tons, 45.1 %
Fuel, ammunition & stores: 1,923 tons, 14.4 %
Miscellaneous weights: 150 tons, 1.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
20,263 lbs / 9,191 Kg = 79.2 x 8.0 " / 203 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 3.2 ft / 1.0 m
Roll period: 15.9 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.74
Seaboat quality (Average = 1.00): 1.23

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.508
Length to Beam Ratio: 9.78 : 1
'Natural speed' for length: 29.45 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.50 ft / 8.69 m
- Forecastle (20 %): 21.00 ft / 6.40 m
- Mid (50 %): 21.00 ft / 6.40 m
- Quarterdeck (15 %): 21.00 ft / 6.40 m
- Stern: 21.00 ft / 6.40 m
- Average freeboard: 21.60 ft / 6.58 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 82.8 %
- Above water (accommodation/working, high = better): 178.3 %
Waterplane Area: 31,567 Square feet or 2,933 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 127 lbs/sq ft or 621 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.32
- Overall: 1.03
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

110 tons for aircraft, catipults and cranes
10 tons for surface search radar
30 tons for future growth

6

Saturday, January 29th 2005, 10:29am



Dardanus/Menemosyne, Atlantis Heavy Cruiser laid down 1931

Displacement:
10,907 t light; 11,404 t standard; 12,693 t normal; 13,723 t full load

Dimensions: Length overall / water x beam x draught
623.36 ft / 612.00 ft x 66.00 ft x 21.65 ft (normal load)
190.00 m / 186.54 m x 20.12 m x 6.60 m

Armament:
9 - 8.00" / 203 mm guns (3x3 guns), 256.00lbs / 116.12kg shells, 1931 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
10 - 4.50" / 114 mm guns (5x2 guns), 45.56lbs / 20.67kg shells, 1931 Model
Dual purpose guns in deck mounts
on side, evenly spread, all raised mounts
12 - 1.57" / 40 mm guns (6x2 guns), 1.93lbs / 0.88kg shells, 1931 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
24 - 0.79" / 20 mm guns (8x3 guns), 0.24lbs / 0.11kg shells, 1931 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
10 - 0.50" / 12.7 mm guns (5x2 guns), 0.06lbs / 0.03kg shells, 1931 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 2,789 lbs / 1,265 kg
Shells per gun, main battery: 150
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 395.00 ft / 120.40 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 99 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.50" / 140 mm 3.15" / 80 mm 3.92" / 100 mm
2nd: 1.00" / 25 mm - -

- Armour deck: 2.35" / 60 mm, Conning tower: 4.15" / 105 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 84,601 shp / 63,112 Kw = 32.00 kts
Range 9,200nm at 15.00 kts
Bunker at max displacement = 2,319 tons

Complement:
597 - 777

Cost:
£4.489 million / $17.958 million

Distribution of weights at normal displacement:
Armament: 349 tons, 2.7 %
Armour: 2,552 tons, 20.1 %
- Belts: 782 tons, 6.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 495 tons, 3.9 %
- Armour Deck: 1,226 tons, 9.7 %
- Conning Tower: 49 tons, 0.4 %
Machinery: 2,530 tons, 19.9 %
Hull, fittings & equipment: 5,327 tons, 42.0 %
Fuel, ammunition & stores: 1,785 tons, 14.1 %
Miscellaneous weights: 150 tons, 1.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,220 lbs / 8,264 Kg = 71.2 x 8.0 " / 203 mm shells or 2.1 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 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.66
Seaboat quality (Average = 1.00): 1.23

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.508
Length to Beam Ratio: 9.27 : 1
'Natural speed' for length: 28.37 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 57
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: 31.20 ft / 9.51 m
- Forecastle (20 %): 27.00 ft / 8.23 m
- Mid (45 %): 27.00 ft / 8.23 m (19.00 ft / 5.79 m aft of break)
- Quarterdeck (20 %): 19.00 ft / 5.79 m
- Stern: 19.00 ft / 5.79 m
- Average freeboard: 22.94 ft / 6.99 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.7 %
- Above water (accommodation/working, high = better): 173.5 %
Waterplane Area: 28,197 Square feet or 2,620 Square metres
Displacement factor (Displacement / loading): 120 %
Structure weight / hull surface area: 119 lbs/sq ft or 580 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.75
- Overall: 1.01
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

7

Monday, June 11th 2007, 9:28am

In 1941 Atlantis purchased the Volcan Osorno from Chile. It is planned that she will recieve a refit to bring her secondary and AA armament up to Atlantean standards. She was to originally retain her Chilean name but in the event the Chileans used the name for a new destroyer and out of respect for the Chileans she was renamed Ajax. She most likely serve along side the Hector class heavy cruisers.

Ajax (ex-Volcan Osorno), Atlantean Heavy cruiser laid down 1926 (Engine 1942)

Displacement:
9,575 t light; 10,036 t standard; 10,927 t normal; 11,640 t full load

Dimensions: Length overall / water x beam x draught
557.38 ft / 551.00 ft x 64.00 ft x 22.50 ft (normal load)
169.89 m / 167.94 m x 19.51 m x 6.86 m

Armament:
9 - 8.00" / 203 mm guns (3x3 guns), 256.00lbs / 116.12kg shells, 1926 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
12 - 3.95" / 100 mm guns (6x2 guns), 30.81lbs / 13.98kg shells, 1926 Model
Dual purpose guns in deck mounts
on side, evenly spread, all raised mounts
2 - 3.95" / 100 mm guns (1x2 guns), 30.81lbs / 13.98kg shells, 1926 Model
Dual purpose guns in deck mount
on centreline aft, all raised guns - superfiring
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.88kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
26 - 0.79" / 20.0 mm guns (11 mounts), 0.24lbs / 0.11kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 12 raised mounts
Weight of broadside 2,773 lbs / 1,258 kg
Shells per gun, main battery: 150
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.50" / 114 mm 360.00 ft / 109.73 m 10.00 ft / 3.05 m
Ends: Unarmoured
Upper: 2.76" / 70 mm 170.00 ft / 51.82 m 5.00 ft / 1.52 m
Main Belt covers 101 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.50" / 140 mm 3.92" / 100 mm 3.15" / 80 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm -
3rd: 2.00" / 51 mm 1.00" / 25 mm -
4th: 1.00" / 25 mm - -

- Armour deck: 1.58" / 40 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 71,569 shp / 53,390 Kw = 30.00 kts
Range 12,000nm at 12.00 kts
Bunker at max displacement = 1,604 tons

Complement:
533 - 694

Cost:
£3.068 million / $12.271 million

Distribution of weights at normal displacement:
Armament: 347 tons, 3.2 %
Armour: 2,006 tons, 18.4 %
- Belts: 799 tons, 7.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 500 tons, 4.6 %
- Armour Deck: 674 tons, 6.2 %
- Conning Tower: 33 tons, 0.3 %
Machinery: 1,870 tons, 17.1 %
Hull, fittings & equipment: 5,103 tons, 46.7 %
Fuel, ammunition & stores: 1,352 tons, 12.4 %
Miscellaneous weights: 250 tons, 2.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
15,864 lbs / 7,196 Kg = 62.0 x 8.0 " / 203 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 2.8 ft / 0.9 m
Roll period: 16.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.76
Seaboat quality (Average = 1.00): 1.42

Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak
Block coefficient: 0.482
Length to Beam Ratio: 8.61 : 1
'Natural speed' for length: 23.47 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 49
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: 30.00 ft / 9.14 m
- Forecastle (25 %): 29.00 ft / 8.84 m (28.60 ft / 8.72 m aft of break)
- Mid (45 %): 28.50 ft / 8.69 m (19.00 ft / 5.79 m aft of break)
- Quarterdeck (18 %): 19.00 ft / 5.79 m
- Stern: 19.00 ft / 5.79 m
- Average freeboard: 23.51 ft / 7.17 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.1 %
- Above water (accommodation/working, high = better): 148.6 %
Waterplane Area: 23,118 Square feet or 2,148 Square metres
Displacement factor (Displacement / loading): 125 %
Structure weight / hull surface area: 127 lbs/sq ft or 622 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 2.69
- Overall: 1.10
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

New superstructure, Hangars added, new secondary and light AA weapons, range increased


Volcan Osorno
Nevado Ojos del Salado-class, Chilean "Heavy" Cruiser laid down 1928 (1926 Atlantis design) purchased 1941
Sim by thesmilingassassin

Displacement:
9,859 t light; 10,318 t standard; 10,927 t normal; 11,414 t full load

Dimensions: Length overall / water x beam x draught
556.95 ft / 551.00 ft x 64.00 ft x 22.50 ft (normal load)
169.76 m / 167.94 m x 19.51 m x 6.86 m

Armament:
9 - 8.00" / 203 mm guns (3x3 guns), 256.00lbs / 116.12kg shells, 1926 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
8 - 4.33" / 110 mm guns (4x2 guns), 40.59lbs / 18.41kg shells, 1926 Model
Quick firing guns in deck mounts
on side, all amidships
3 - 4.33" / 110 mm guns (1x3 guns), 40.59lbs / 18.41kg shells, 1926 Model
Quick firing guns in deck mount
on centreline aft
12 - 1.46" / 37.0 mm guns (6x2 guns), 1.54lbs / 0.70kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 2,769 lbs / 1,256 kg
Shells per gun, main battery: 150
12 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.50" / 114 mm 360.00 ft / 109.73 m 10.00 ft / 3.05 m
Ends: Unarmoured
Upper: 2.76" / 70 mm 170.00 ft / 51.82 m 5.00 ft / 1.52 m
Main Belt covers 101 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.50" / 140 mm 3.92" / 100 mm 3.15" / 80 mm
2nd: 1.00" / 25 mm - -

- Armour deck: 1.57" / 40 mm, Conning tower: 1.95" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 71,569 shp / 53,390 Kw = 30.00 kts
Range 10,000nm at 10.00 kts
Bunker at max displacement = 1,095 tons

Complement:
533 - 694

Cost:
£3.304 million / $13.218 million

Distribution of weights at normal displacement:
Armament: 346 tons, 3.2 %
Armour: 1,943 tons, 17.8 %
- Belts: 799 tons, 7.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 452 tons, 4.1 %
- Armour Deck: 671 tons, 6.1 %
- Conning Tower: 21 tons, 0.2 %
Machinery: 2,291 tons, 21.0 %
Hull, fittings & equipment: 5,129 tons, 46.9 %
Fuel, ammunition & stores: 1,067 tons, 9.8 %
Miscellaneous weights: 150 tons, 1.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,482 lbs / 6,569 Kg = 56.6 x 8.0 " / 203 mm shells or 1.8 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 2.9 ft / 0.9 m
Roll period: 15.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.78
Seaboat quality (Average = 1.00): 1.42

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.482
Length to Beam Ratio: 8.61 : 1
'Natural speed' for length: 23.47 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 49
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: 28.00 ft / 8.53 m
- Forecastle (25 %): 27.50 ft / 8.38 m (26.00 ft / 7.92 m aft of break)
- Mid (45 %): 26.00 ft / 7.92 m
- Quarterdeck (18 %): 18.00 ft / 5.49 m
- Stern: 18.00 ft / 5.49 m
- Average freeboard: 23.51 ft / 7.16 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 94.4 %
- Above water (accommodation/working, high = better): 148.0 %
Waterplane Area: 23,118 Square feet or 2,148 Square metres
Displacement factor (Displacement / loading): 116 %
Structure weight / hull surface area: 128 lbs/sq ft or 625 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 2.68
- Overall: 1.10
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

Breakdown of Miscellaneous Weights
N/A

Ships in Class:
- Nevado Ojos del Salado (CA-1) - 1928, Scrapped after battle damage, 1938
- Volcan Osorno (CA-2) - 1929, sold to Atlantis Q1-1941

8

Wednesday, May 11th 2016, 9:48pm

Hector, Atlantis Heavy Cruiser laid down 1928


Hector/Apollo, Atlantean Heavy cruiser laid down 1928 (Engine 1942)

Displacement:
10,968 t light; 11,459 t standard; 12,432 t normal; 13,211 t full load

Dimensions: Length overall / water x beam x draught
595.92 ft / 585.00 ft x 66.00 ft x 24.50 ft (normal load)
181.64 m / 178.31 m x 20.12 m x 7.47 m

Armament:
9 - 8.00" / 203 mm guns (3x3 guns), 256.00lbs / 116.12kg shells, 1928 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
12 - 3.95" / 100 mm guns (6x2 guns), 30.81lbs / 13.98kg shells, 1942 Model
Dual purpose guns in deck mounts
on side, evenly spread, 4 raised mounts
2 - 3.95" / 100 mm guns (1x2 guns), 30.81lbs / 13.98kg shells, 1942 Model
Dual purpose guns in deck mount
on centreline aft, all raised guns - superfiring
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.88kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
18 - 0.79" / 20.0 mm guns (6x3 guns), 0.24lbs / 0.11kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 2,771 lbs / 1,257 kg
Shells per gun, main battery: 150
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 390.00 ft / 118.87 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 103 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.51" / 140 mm 3.94" / 100 mm 3.94" / 100 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm -
3rd: 2.00" / 51 mm 1.00" / 25 mm -
4th: 1.00" / 25 mm - -

- Armour deck: 2.36" / 60 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 96,795 shp / 72,209 Kw = 32.00 kts
Range 12,000nm at 12.00 kts
Bunker at max displacement = 1,752 tons

Complement:
588 - 765

Cost:
£3.928 million / $15.713 million

Distribution of weights at normal displacement:
Armament: 346 tons, 2.8 %
Armour: 2,429 tons, 19.5 %
- Belts: 770 tons, 6.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 538 tons, 4.3 %
- Armour Deck: 1,085 tons, 8.7 %
- Conning Tower: 36 tons, 0.3 %
Machinery: 2,529 tons, 20.3 %
Hull, fittings & equipment: 5,414 tons, 43.5 %
Fuel, ammunition & stores: 1,464 tons, 11.8 %
Miscellaneous weights: 250 tons, 2.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
15,251 lbs / 6,918 Kg = 59.6 x 8.0 " / 203 mm shells or 1.9 torpedoes
Stability (Unstable if below 1.00): 1.01
Metacentric height 2.7 ft / 0.8 m
Roll period: 16.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.66
Seaboat quality (Average = 1.00): 1.13

Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak
Block coefficient: 0.460
Length to Beam Ratio: 8.86 : 1
'Natural speed' for length: 24.19 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 62
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: 30.00 ft / 9.14 m
- Forecastle (20 %): 26.20 ft / 7.99 m (26.00 ft / 7.92 m aft of break)
- Mid (45 %): 26.00 ft / 7.92 m (18.00 ft / 5.49 m aft of break)
- Quarterdeck (15 %): 18.00 ft / 5.49 m
- Stern: 19.00 ft / 5.79 m
- Average freeboard: 22.02 ft / 6.71 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 90.2 %
- Above water (accommodation/working, high = better): 139.3 %
Waterplane Area: 24,834 Square feet or 2,307 Square metres
Displacement factor (Displacement / loading): 118 %
Structure weight / hull surface area: 131 lbs/sq ft or 638 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.02
- Longitudinal: 2.06
- Overall: 1.10
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

Superstructure modified/replaced, Hangars added, new machinery, new secondary and light AA weapons added, new torpedo launchers added and torpedo outfit increased to 10 (2x5)
Misc weight breakdown
50 tons for 2 aircraft
50 tons for cross deck catipult
50 tons for 2x25ton cranes
60 tons for radars
20 tons for torpedo reloads
20 tons for improved gun directors

As built

Hector/Apollo

Displacement:
10,839 t light; 11,329 t standard; 12,432 t normal; 13,315 t full load

Dimensions: Length overall / water x beam x draught
595.92 ft / 585.00 ft x 66.00 ft x 24.50 ft (normal load)
181.64 m / 178.31 m x 20.12 m x 7.47 m

Armament:
9 - 8.00" / 203 mm guns (3x3 guns), 256.00lbs / 116.12kg shells, 1928 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
8 - 4.50" / 114 mm guns (4x2 guns), 45.56lbs / 20.67kg shells, 1928 Model
Dual purpose guns in deck mounts
on side, all amidships
2 - 4.50" / 114 mm guns (1x2 guns), 45.56lbs / 20.67kg shells, 1928 Model
Dual purpose guns in deck mount
on centreline aft
8 - 1.57" / 40 mm guns (4x2 guns), 1.93lbs / 0.88kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
18 - 0.79" / 20 mm guns (6x3 guns), 0.24lbs / 0.11kg shells, 1928 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 2,779 lbs / 1,261 kg
Shells per gun, main battery: 150
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.70" / 119 mm 390.00 ft / 118.87 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 103 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.50" / 140 mm 3.92" / 100 mm 3.92" / 100 mm
2nd: 1.00" / 25 mm - -
3rd: 1.00" / 25 mm - -

- Armour deck: 2.35" / 60 mm, Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 96,795 shp / 72,209 Kw = 32.00 kts
Range 12,000nm at 12.00 kts
Bunker at max displacement = 1,986 tons

Complement:
588 - 765

Cost:
£4.174 million / $16.695 million

Distribution of weights at normal displacement:
Armament: 347 tons, 2.8 %
Armour: 2,389 tons, 19.2 %
- Belts: 766 tons, 6.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 507 tons, 4.1 %
- Armour Deck: 1,080 tons, 8.7 %
- Conning Tower: 36 tons, 0.3 %
Machinery: 3,014 tons, 24.2 %
Hull, fittings & equipment: 4,939 tons, 39.7 %
Fuel, ammunition & stores: 1,593 tons, 12.8 %
Miscellaneous weights: 150 tons, 1.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,563 lbs / 6,152 Kg = 53.0 x 8.0 " / 203 mm shells or 1.7 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 3.0 ft / 0.9 m
Roll period: 16.1 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.65
Seaboat quality (Average = 1.00): 1.15

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.460
Length to Beam Ratio: 8.86 : 1
'Natural speed' for length: 24.19 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 62
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: 30.00 ft / 9.14 m
- Forecastle (20 %): 26.00 ft / 7.92 m
- Mid (45 %): 26.00 ft / 7.92 m (18.00 ft / 5.49 m aft of break)
- Quarterdeck (20 %): 18.00 ft / 5.49 m
- Stern: 19.00 ft / 5.79 m
- Average freeboard: 22.02 ft / 6.71 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 101.9 %
- Above water (accommodation/working, high = better): 147.1 %
Waterplane Area: 24,834 Square feet or 2,307 Square metres
Displacement factor (Displacement / loading): 110 %
Structure weight / hull surface area: 119 lbs/sq ft or 582 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.85
- 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

9

Wednesday, May 11th 2016, 9:54pm

Menelaus, Atlantis heavy Cruiser laid down 1923

Ships in class: Menelaus, Peleus, Astyanax, Sarpedon

As refit



Menelaus, Atlantean Heavy Cruiser laid down 1923

Displacement:
10,692 t light; 11,141 t standard; 11,818 t normal; 12,359 t full load

Dimensions: Length overall / water x beam x draught
623.95 ft / 618.00 ft x 64.00 ft x 22.25 ft (normal load)
190.18 m / 188.37 m x 19.51 m x 6.78 m

Armament:
8 - 8.00" / 203 mm guns (4x2 guns), 256.00lbs / 116.12kg shells, 1923 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 3.95" / 100 mm guns (6x2 guns), 30.81lbs / 13.98kg shells, 1936 Model
Dual purpose guns in deck mounts
on side, evenly spread, all raised mounts
8 - 1.58" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
20 - 0.79" / 20.0 mm guns (8 mounts), 0.24lbs / 0.11kg shells, 1936 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, 1936 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 2,439 lbs / 1,106 kg
Shells per gun, main battery: 150
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.10" / 104 mm 425.00 ft / 129.54 m 10.00 ft / 3.05 m
Ends: Unarmoured
Upper: 2.76" / 70 mm 170.00 ft / 51.82 m 5.00 ft / 1.52 m
Main Belt covers 106 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.50" / 140 mm 3.92" / 100 mm 3.15" / 80 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm -

- Armour deck: 1.58" / 40 mm, Conning tower: 1.58" / 40 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 91,059 shp / 67,930 Kw = 32.00 kts
Range 10,000nm at 10.00 kts
Bunker at max displacement = 1,218 tons

Complement:
566 - 736

Cost:
£3.073 million / $12.292 million

Distribution of weights at normal displacement:
Armament: 305 tons, 2.6 %
Armour: 2,091 tons, 17.7 %
- Belts: 837 tons, 7.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 488 tons, 4.1 %
- Armour Deck: 748 tons, 6.3 %
- Conning Tower: 18 tons, 0.1 %
Machinery: 3,043 tons, 25.8 %
Hull, fittings & equipment: 5,003 tons, 42.3 %
Fuel, ammunition & stores: 1,125 tons, 9.5 %
Miscellaneous weights: 250 tons, 2.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12,325 lbs / 5,591 Kg = 48.1 x 8.0 " / 203 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 3.2 ft / 1.0 m
Roll period: 15.1 seconds
Steadiness - As gun platform (Average = 50 %): 59 %
- Recoil effect (Restricted arc if above 1.00): 0.52
Seaboat quality (Average = 1.00): 1.17

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.470
Length to Beam Ratio: 9.66 : 1
'Natural speed' for length: 24.86 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 28.00 ft / 8.53 m
- Forecastle (25 %): 27.50 ft / 8.38 m (27.00 ft / 8.23 m aft of break)
- Mid (45 %): 18.00 ft / 5.49 m
- Quarterdeck (18 %): 18.00 ft / 5.49 m
- Stern: 18.00 ft / 5.49 m
- Average freeboard: 21.33 ft / 6.50 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 106.0 %
- Above water (accommodation/working, high = better): 139.6 %
Waterplane Area: 25,658 Square feet or 2,384 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 119 lbs/sq ft or 582 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.01
- Longitudinal: 1.53
- Overall: 1.05
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent


Menelaus class as built

Sarpedon and Astyanax are slightly different in appearance due to their later lay down date, having newer aft main and secondary dirrectors.

Menelaus class as planned

The Menelaus class was orriginally designed with eight single 4" secondary guns and increased lifeboat capacity. Their subsequent redesign traded the eight single 4" turrets for four twins and added scouting aircraft and catipults at the expence of some lifeboats.

Menelaus, Peleus, Sarpedon, Astyanax

Displacement:
10,696 t light; 11,141 t standard; 11,818 t normal; 12,359 t full load

Dimensions: Length overall / water x beam x draught
623.95 ft / 618.00 ft x 64.00 ft x 22.25 ft (normal load)
190.18 m / 188.37 m x 19.51 m x 6.78 m

Armament:
8 - 8.00" / 203 mm guns (4x2 guns), 256.00lbs / 116.12kg shells, 1923 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 4.50" / 114 mm guns (4x2 guns), 45.56lbs / 20.67kg shells, 1923 Model
Quick firing guns in deck mounts
on side, all aft
12 - 1.00" / 25.4 mm guns (6x2 guns), 0.50lbs / 0.23kg shells, 1923 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 2,418 lbs / 1,097 kg
Shells per gun, main battery: 150
12 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.10" / 104 mm 425.00 ft / 129.54 m 10.00 ft / 3.05 m
Ends: Unarmoured
Upper: 2.76" / 70 mm 170.00 ft / 51.82 m 5.00 ft / 1.52 m
Main Belt covers 106 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.50" / 140 mm 3.92" / 100 mm 3.15" / 80 mm
2nd: 1.00" / 25 mm - -

- Armour deck: 1.57" / 40 mm, Conning tower: 1.57" / 40 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 91,059 shp / 67,930 Kw = 32.00 kts
Range 10,000nm at 10.00 kts
Bunker at max displacement = 1,218 tons

Complement:
566 - 736

Cost:
£3.067 million / $12.269 million

Distribution of weights at normal displacement:
Armament: 302 tons, 2.6 %
Armour: 2,083 tons, 17.6 %
- Belts: 837 tons, 7.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 483 tons, 4.1 %
- Armour Deck: 745 tons, 6.3 %
- Conning Tower: 18 tons, 0.1 %
Machinery: 3,043 tons, 25.8 %
Hull, fittings & equipment: 5,217 tons, 44.2 %
Fuel, ammunition & stores: 1,122 tons, 9.5 %
Miscellaneous weights: 50 tons, 0.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,052 lbs / 6,374 Kg = 54.9 x 8.0 " / 203 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 3.1 ft / 0.9 m
Roll period: 15.3 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.69
Seaboat quality (Average = 1.00): 1.42

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.470
Length to Beam Ratio: 9.66 : 1
'Natural speed' for length: 24.86 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 28.00 ft / 8.53 m
- Forecastle (25 %): 27.50 ft / 8.38 m (26.00 ft / 7.92 m aft of break)
- Mid (45 %): 26.00 ft / 7.92 m
- Quarterdeck (18 %): 18.00 ft / 5.49 m
- Stern: 18.00 ft / 5.49 m
- Average freeboard: 23.51 ft / 7.16 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 104.1 %
- Above water (accommodation/working, high = better): 159.8 %
Waterplane Area: 25,658 Square feet or 2,384 Square metres
Displacement factor (Displacement / loading): 111 %
Structure weight / hull surface area: 117 lbs/sq ft or 573 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.95
- Overall: 1.02
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