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1

Wednesday, February 15th 2006, 11:16pm

Light Cruisers

Class B (2000 to 8000 tons) of the Armada

2

Wednesday, February 15th 2006, 11:47pm

El Cunctador class

El Cunctador, Iberia Protected Cruiser laid down 1905

Scrapped 1939

El Cunctador
El Pajero
El Cobarde
El Temeroso

Displacement:
4,312 t light; 4,453 t standard; 4,999 t normal; 5,416 t full load
Loading submergence 361 tons/feet

Dimensions:
459.32 ft x 46.92 ft x 18.04 ft (normal load)
140.00 m x 14.30 m x 5.50 m

Armament:
2 - 6.69" / 170 mm guns
6 - 3.94" / 100 mm guns
2 - 2.24" / 57 mm QF guns
4 - 0.53" / 14 mm guns
Weight of broadside 494 lbs / 224 kg
2 - 18.9" / 480 mm submerged torpedo tubes

Armour:
Belt 2.95" / 75 mm, upper belt 1.97" / 50 mm, end belts 0.51" / 13 mm
Belts cover 124 % of normal area
Main gun shields 4.92" / 125 mm, 2nd gun shields 1.97" / 50 mm
QF gun shields 0.51" / 13 mm
Armour deck 1.57" / 40 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 22,365 shp / 16,685 Kw = 25.00 kts
Range 7,000nm at 10.00 kts

Complement:
297 - 386

Cost:
£0.440 million / $1.760 million

Distribution of weights at normal displacement:
Armament: 62 tons, 1.2 %
Armour: 1,043 tons, 20.9 %
Belts: 639 tons, 12.8 %, Armament: 36 tons, 0.7 %, Armour Deck: 368 tons, 7.4 %
Conning Tower: 0 tons, 0.0 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 1,694 tons, 33.9 %
Hull, fittings & equipment: 1,513 tons, 30.3 %
Fuel, ammunition & stores: 687 tons, 13.7 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 2.7

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.34
Shellfire needed to sink: 3,484 lbs / 1,580 Kg = 23.2 x 6.7 " / 170 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.8
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 74 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.09
Relative quality as seaboat: 1.22

Hull form characteristics:
Block coefficient: 0.450
Sharpness coefficient: 0.32
Hull speed coefficient 'M': 8.21
'Natural speed' for length: 21.43 kts
Power going to wave formation at top speed: 48 %
Trim: 61
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 123.9 %
Relative accommodation and working space: 95.6 %
(Average = 100%)
Displacement factor: 101 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.00
(Structure weight / hull surface area: 72 lbs / square foot or 350 Kg / square metre)
Relative longitudinal hull strength: 1.02
(for 11.81 ft / 3.60 m average freeboard, freeboard adjustment -1.37 ft)
Relative composite hull strength: 1.00

This post has been edited 1 times, last edit by "Commodore Green" (Sep 23rd 2010, 7:54pm)


3

Wednesday, February 15th 2006, 11:50pm

Adelante class

Adelante, Iberia Scout Cruiser laid down 1912

Scrapped 1939

Adelante
Avance
Progreso

Displacement:
2,844 t light; 2,961 t standard; 3,163 t normal; 3,312 t full load
Loading submergence 274 tons/feet

Dimensions:
400.00 ft x 41.00 ft x 15.00 ft (normal load)
121.92 m x 12.50 m x 4.57 m

Armament:
4 - 6.70" / 170 mm guns (4 Main turrets x 1 guns)
6 - 2.24" / 57 mm QF guns
4 - 0.50" / 13 mm guns
Weight of broadside 635 lbs / 288 kg
3 - 17.7" / 449.58 mm submerged torpedo tubes

Armour:
Belt 2.00" / 51 mm, ends unarmoured
Belts cover 130 % of normal area
Main turrets 2.00" / 51 mm, QF gun shields 0.50" / 13 mm
Armour deck 1.20" / 30 mm, Conning tower 2.00" / 51 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 24,035 shp / 17,930 Kw = 27.00 kts
Range 5,000nm at 10.00 kts

Complement:
210 - 274

Cost:
£0.300 million / $1.202 million

Distribution of weights at normal displacement:
Armament: 79 tons, 2.5 %
Armour: 527 tons, 16.7 %
Belts: 213 tons, 6.7 %, Armament: 91 tons, 2.9 %, Armour Deck: 213 tons, 6.7 %
Conning Tower: 9 tons, 0.3 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 958 tons, 30.3 %
Hull, fittings & equipment: 1,279 tons, 40.4 %
Fuel, ammunition & stores: 318 tons, 10.1 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 1.6

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.11
Shellfire needed to sink: 2,417 lbs / 1,096 Kg = 16.1 x 6.7 " / 170 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.6
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 75 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.65
Relative quality as seaboat: 1.27

Hull form characteristics:
Block coefficient: 0.450
Sharpness coefficient: 0.32
Hull speed coefficient 'M': 8.33
'Natural speed' for length: 20.00 kts
Power going to wave formation at top speed: 55 %
Trim: 59
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 125.9 %
Relative accommodation and working space: 130.7 %
(Average = 100%)
Displacement factor: 103 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.94
(Structure weight / hull surface area: 73 lbs / square foot or 357 Kg / square metre)
Relative longitudinal hull strength: 1.70
(for 15.00 ft / 4.57 m average freeboard, freeboard adjustment 2.97 ft)
Relative composite hull strength: 1.00

This post has been edited 1 times, last edit by "Commodore Green" (Sep 23rd 2010, 7:55pm)


4

Wednesday, February 15th 2006, 11:52pm

Angola class

Angola, Iberia Light Cruiser laid down 1914

All scrapped, 1942-43

Angola
El Salvador
Liberia
Honduras
Diego Garcia
Nicaragua

Displacement:
5,533 t light; 5,745 t standard; 6,137 t normal; 6,427 t full load
Loading submergence 444 tons/feet

Dimensions:
510.00 ft x 52.00 ft x 18.00 ft (normal load)
155.45 m x 15.85 m x 5.49 m

Armament:
7 - 6.70" / 170 mm guns (7 Main turrets x 1 guns)
2 - 2.24" / 57 mm AA guns
4 - 0.50" / 13 mm guns
Weight of broadside 1,064 lbs / 483 kg
2 - 19.0" / 482.6 mm submerged torpedo tubes

Armour:
Belt 3.00" / 76 mm, upper belt 2.00" / 51 mm, end belts 0.50" / 13 mm
Belts cover 110 % of normal area
Main turrets 5.00" / 127 mm, AA gun shields 0.50" / 13 mm
Armour deck 1.80" / 46 mm, Conning tower 6.00" / 152 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 33,016 shp / 24,630 Kw = 27.00 kts
Range 7,000nm at 10.00 kts

Complement:
346 - 450

Cost:
£0.615 million / $2.461 million

Distribution of weights at normal displacement:
Armament: 133 tons, 2.2 %
Armour: 1,642 tons, 26.8 %
Belts: 660 tons, 10.7 %, Armament: 422 tons, 6.9 %, Armour Deck: 517 tons, 8.4 %
Conning Tower: 43 tons, 0.7 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 1,272 tons, 20.7 %
Hull, fittings & equipment: 2,468 tons, 40.2 %
Fuel, ammunition & stores: 604 tons, 9.8 %
Miscellaneous weights: 18 tons, 0.3 %

Metacentric height 2.0

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.04
Shellfire needed to sink: 8,229 lbs / 3,732 Kg = 54.7 x 6.7 " / 170 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.4
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 84 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.59
Relative quality as seaboat: 1.50

Hull form characteristics:
Block coefficient: 0.450
Sharpness coefficient: 0.32
Hull speed coefficient 'M': 8.52
'Natural speed' for length: 22.58 kts
Power going to wave formation at top speed: 49 %
Trim: 56
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 87.4 %
Relative accommodation and working space: 153.9 %
(Average = 100%)
Displacement factor: 117 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.97
(Structure weight / hull surface area: 90 lbs / square foot or 439 Kg / square metre)
Relative longitudinal hull strength: 1.45
(for 18.00 ft / 5.49 m average freeboard, freeboard adjustment 4.27 ft)
Relative composite hull strength: 1.01

5

Wednesday, February 15th 2006, 11:55pm

Santiago de Cuba class

Santiago de Cuba, Iberia Light Cruiser laid down 1917

All scrapped, 1943-44

Santiago de Cuba
Luanda
Macao
Santander

Displacement:
7,222 t light; 7,471 t standard; 7,884 t normal; 8,182 t full load
Loading submergence 568 tons/feet

Dimensions:
574.15 ft x 59.06 ft x 18.04 ft (normal load)
175.00 m x 18.00 m x 5.50 m

Armament:
7 - 6.69" / 170 mm guns
8 - 2.24" / 57 mm AA guns
4 - 0.53" / 14 mm guns
Weight of broadside 1,095 lbs / 497 kg
8 - 18.9" / 480 mm above water torpedoes

Armour:
Belt 3.35" / 85 mm, upper belt 1.97" / 50 mm, end belts 0.79" / 20 mm
Belts cover 111 % of normal area
Main gun shields 3.94" / 100 mm, AA gun shields 0.51" / 13 mm
Armour deck 1.57" / 40 mm, Conning tower 5.91" / 150 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 63,769 shp / 47,572 Kw = 31.00 kts
Range 7,000nm at 10.00 kts

Complement:
418 - 543

Cost:
£1.264 million / $5.055 million

Distribution of weights at normal displacement:
Armament: 137 tons, 1.7 %
Armour: 1,561 tons, 19.8 %
Belts: 853 tons, 10.8 %, Armament: 78 tons, 1.0 %, Armour Deck: 579 tons, 7.3 %
Conning Tower: 50 tons, 0.6 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,338 tons, 29.7 %
Hull, fittings & equipment: 3,181 tons, 40.4 %
Fuel, ammunition & stores: 661 tons, 8.4 %
Miscellaneous weights: 6 tons, 0.1 %

Metacentric height 3.3

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.22
Shellfire needed to sink: 8,709 lbs / 3,950 Kg = 58.1 x 6.7 " / 170 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.3
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 73 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.16
Relative quality as seaboat: 1.30

Hull form characteristics:
Block coefficient: 0.451
Sharpness coefficient: 0.32
Hull speed coefficient 'M': 8.82
'Natural speed' for length: 23.96 kts
Power going to wave formation at top speed: 53 %
Trim: 56
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 109.9 %
Relative accommodation and working space: 154.9 %
(Average = 100%)
Displacement factor: 107 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.97
(Structure weight / hull surface area: 95 lbs / square foot or 461 Kg / square metre)
Relative longitudinal hull strength: 1.37
(for 19.69 ft / 6.00 m average freeboard, freeboard adjustment 5.25 ft)
Relative composite hull strength: 1.01

6

Wednesday, February 15th 2006, 11:57pm

Santiago de Cuba class

Santa Juana, Iberia Protected Cruiser laid down 1909

Scrapped 1940

Santa Juana
Santa Katharina
San Bernardo
San José
San Fernando

Displacement:
4,802 t light; 4,982 t standard; 5,443 t normal; 5,790 t full load
Loading submergence 394 tons/feet

Dimensions:
480.00 ft x 49.00 ft x 18.00 ft (normal load)
146.30 m x 14.94 m x 5.49 m

Armament:
4 - 6.70" / 170 mm guns (4 Main turrets x 1 guns)
8 - 3.92" / 100 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
2 - 2.24" / 57 mm QF guns
4 - 0.50" / 13 mm guns
Weight of broadside 854 lbs / 387 kg
2 - 17.7" / 449.58 mm submerged torpedo tubes

Armour:
Belt 3.00" / 76 mm, upper belt 2.00" / 51 mm, end belts 0.50" / 13 mm
Belts cover 124 % of normal area
Main turrets 5.00" / 127 mm, 2nd casemates 2.00" / 51 mm
QF gun shields 0.50" / 13 mm
Armour deck 1.80" / 46 mm, Conning tower 6.00" / 152 mm

Machinery:
Oil fired boilers, steam turbines,
No drive to shaft, 3 shafts, 31,326 shp / 23,369 Kw = 27.00 kts
Range 7,000nm at 10.00 kts

Complement:
316 - 411

Cost:
£0.457 million / $1.828 million

Distribution of weights at normal displacement:
Armament: 107 tons, 2.0 %
Armour: 1,412 tons, 25.9 %
Belts: 687 tons, 12.6 %, Armament: 226 tons, 4.2 %, Armour Deck: 459 tons, 8.4 %
Conning Tower: 40 tons, 0.7 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 1,424 tons, 26.2 %
Hull, fittings & equipment: 1,860 tons, 34.2 %
Fuel, ammunition & stores: 641 tons, 11.8 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 2.4

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is adequate

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.20
Shellfire needed to sink: 5,210 lbs / 2,363 Kg = 34.6 x 6.7 " / 170 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.0
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 56 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.27
Relative quality as seaboat: 1.00

Hull form characteristics:
Block coefficient: 0.450
Sharpness coefficient: 0.32
Hull speed coefficient 'M': 8.34
'Natural speed' for length: 21.91 kts
Power going to wave formation at top speed: 51 %
Trim: 56
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 103.5 %
Relative accommodation and working space: 99.6 %
(Average = 100%)
Displacement factor: 106 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.02
(Structure weight / hull surface area: 82 lbs / square foot or 402 Kg / square metre)
Relative longitudinal hull strength: 1.00
(for 12.00 ft / 3.66 m average freeboard, freeboard adjustment -1.41 ft)
Relative composite hull strength: 1.00

This post has been edited 2 times, last edit by "Commodore Green" (Jul 3rd 2011, 3:34pm)


7

Thursday, February 16th 2006, 12:04am

Avada Kedavra class

Avada Kedavra VII, Iberia SCB laid down 1921

Avada Kedavra
Crucio
Imperius
Expelliarmus
Alohomora
Accio

Displacement:
7,753 t light; 8,011 t standard; 9,374 t normal; 10,427 t full load
Loading submergence 613 tons/feet

Dimensions:
590.55 ft x 60.70 ft x 19.69 ft (normal load)
180.00 m x 18.50 m x 6.00 m

Armament:
12 - 5.12" / 130 mm guns (4 Main turrets x 3 guns, 2 superfiring turrets)
8 - 2.24" / 57 mm guns (4 2nd turrets x 2 guns)
4 - 0.53" / 14 mm guns
Weight of broadside 850 lbs / 386 kg
8 - 23.6" / 600 mm above water torpedoes

Armour:
Belt 0.79" / 20 mm, ends unarmoured
Belts cover 132 % of normal area
Main turrets 0.79" / 20 mm, 2nd turrets 0.39" / 10 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 102,603 shp / 76,542 Kw = 34.00 kts
Range 10,000nm at 15.00 kts

Complement:
476 - 619

Cost:
£2.177 million / $8.708 million

Distribution of weights at normal displacement:
Armament: 106 tons, 1.1 %
Armour: 234 tons, 2.5 %
Belts: 153 tons, 1.6 %, Armament: 81 tons, 0.9 %, Armour Deck: 0 tons, 0.0 %
Conning Tower: 0 tons, 0.0 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 3,533 tons, 37.7 %
Hull, fittings & equipment: 3,879 tons, 41.4 %
Fuel, ammunition & stores: 1,622 tons, 17.3 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 3.4

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.23
Shellfire needed to sink: 7,054 lbs / 3,200 Kg = 105.2 x 5.1 " / 130 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.1
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 77 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.23
Relative quality as seaboat: 1.08

Hull form characteristics:
Block coefficient: 0.465
Sharpness coefficient: 0.32
Hull speed coefficient 'M': 8.57
'Natural speed' for length: 24.30 kts
Power going to wave formation at top speed: 58 %
Trim: 71
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 130.9 %
Relative accommodation and working space: 140.7 %
(Average = 100%)
Displacement factor: 115 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.05
(Structure weight / hull surface area: 106 lbs / square foot or 518 Kg / square metre)
Relative longitudinal hull strength: 1.52
(for 20.34 ft / 6.20 m average freeboard, freeboard adjustment 5.39 ft)
Relative composite hull strength: 1.09

flat stern for speed
torpedoes 4 * 2 ( 2 either side of funnels, boat on bridges over those)
57 mm twin mounts before and after that installation
bridge tower pagode, a bit like Graf Spee
flush deck
3 funnels, 5° rake

8

Tuesday, October 31st 2006, 9:41pm

Hasta Leugo Class

All the ships listed from here are only LA's designs, and are the only references I have for them. If they are incorrect, I can only apologise.

Hasta Luego, Iberia Scout Cruiser laid down 1919

Hasta Leoga
Hasta la Vista
Hasta Nunca
Hasta la Proxima
Hasta Otra
Hasta Siempre

Displacement:
4,241 t light; 4,369 t standard; 4,567 t normal; 4,707 t full load
Loading submergence 391 tons/feet

Dimensions:
508.53 ft x 45.28 ft x 15.09 ft (normal load)
155.00 m x 13.80 m x 4.60 m

Armament:
6 - 5.12" / 130 mm guns (2 Main turrets x 3 guns)
6 - 2.24" / 57 mm AA guns
4 - 0.53" / 14 mm guns
Weight of broadside 436 lbs / 198 kg
8 - 23.6" / 600 mm above water torpedoes

Armour:
Belt 1.97" / 50 mm, ends unarmoured
Belts cover 147 % of normal area
Main turrets 1.97" / 50 mm, AA gun shields 0.79" / 20 mm
Armour deck 1.18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 53,509 shp / 39,918 Kw = 32.00 kts
Range 5,000nm at 10.00 kts

Complement:
277 - 361

Cost:
£1.001 million / $4.002 million

Distribution of weights at normal displacement:
Armament: 55 tons, 1.2 %
Armour: 685 tons, 15.0 %
Belts: 313 tons, 6.9 %, Armament: 73 tons, 1.6 %, Armour Deck: 299 tons, 6.5 %
Conning Tower: 0 tons, 0.0 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 1,888 tons, 41.3 %
Hull, fittings & equipment: 1,614 tons, 35.3 %
Fuel, ammunition & stores: 326 tons, 7.1 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 2.3

Remarks:
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.25
Shellfire needed to sink: 2,591 lbs / 1,175 Kg = 38.7 x 5.1 " / 130 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.6
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 71 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.28
Relative quality as seaboat: 1.17

Hull form characteristics:
Block coefficient: 0.460
Sharpness coefficient: 0.31
Hull speed coefficient 'M': 9.37
'Natural speed' for length: 22.55 kts
Power going to wave formation at top speed: 56 %
Trim: 61
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 143.0 %
Relative accommodation and working space: 107.6 %
(Average = 100%)
Displacement factor: 93 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.84
(Structure weight / hull surface area: 67 lbs / square foot or 327 Kg / square metre)
Relative longitudinal hull strength: 1.07
(for 16.40 ft / 5.00 m average freeboard, freeboard adjustment 3.46 ft)
Relative composite hull strength: 0.86

9

Tuesday, October 31st 2006, 9:57pm

Aguila, Royal Yacht?

Aguila, Iberia Royal Yacht laid down 1920

Scrapped 1940

Displacement:
7,737 t light; 7,999 t standard; 9,234 t normal; 10,185 t full load
Loading submergence 610 tons/feet

Dimensions:
574.15 ft x 61.35 ft x 19.36 ft (normal load)
175.00 m x 18.70 m x 5.90 m

Armament:
8 - 6.00" / 152 mm guns (2 Main turrets x 4 guns)
12 - 2.24" / 57 mm AA guns
Weight of broadside 932 lbs / 423 kg

Armour:
Belt 2.95" / 75 mm, ends unarmoured
Belts cover 100 % of normal area
Main turrets 2.95" / 75 mm, AA gun shields 0.79" / 20 mm,
Armour deck 1.38" / 35 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 54,755 shp / 40,847 Kw = 29.00 kts
Range 9,000nm at 15.00 kts

Complement:
470 - 612

Cost:
£1.505 million / $6.019 million

Distribution of weights at normal displacement:
Armament: 116 tons, 1.3 %
Armour: 1,129 tons, 12.2 %
Belts: 427 tons, 4.6 %, Armament: 157 tons, 1.7 %, Armour Deck: 545 tons, 5.9 %
Conning Tower: 0 tons, 0.0 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 1,915 tons, 20.7 %
Hull, fittings & equipment: 3,377 tons, 36.6 %
Fuel, ammunition & stores: 1,497 tons, 16.2 %
Miscellaneous weights: 1,200 tons, 13.0 %

Metacentric height 3.2

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.17
Shellfire needed to sink: 12,501 lbs / 5,670 Kg = 115.7 x 6.0 " / 152 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.7
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 70 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.24
Relative quality as seaboat: 1.42

Hull form characteristics:
Block coefficient: 0.474
Sharpness coefficient: 0.33
Hull speed coefficient 'M': 8.37
'Natural speed' for length: 23.96 kts
Power going to wave formation at top speed: 51 %
Trim: 49
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 91.6 %
Relative accommodation and working space: 170.4 %
(Average = 100%)
Displacement factor: 130 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.96
(Structure weight / hull surface area: 95 lbs / square foot or 464 Kg / square metre)
Relative longitudinal hull strength: 1.36
(for 19.69 ft / 6.00 m average freeboard, freeboard adjustment 4.78 ft)
Relative composite hull strength: 1.00

Player:
This very controversial ship is Iberia's Royal Yacht.

King Enrique himself forced the quad turrets and this ship on the admiralty against strong protests. The turrets are dual cradle ones. Parliament went amok but could not stop the construction since HM is paying for 50% of it out of his own purse. One of the main objections is against building a worthless light cruiser that counts under the Treaty of Cleito limitations. The ship is too slow, doesn't carry torpedoes and not enough AAA. The 1200 ts of luxury accommodations really screw the design up ;-)

The 57 mm are triplets

In a way it is an experimental vessel to try out new ideas. This really is the reason why the admiralty agreed to "The King's toy". Ideas can be validated without tying up major fleet units.

The looks of the ship should be imagined as follows:
3 storey deckhouse
2 raked funnels
colour scheme yellow with black hull like vicorian warships and classic yachts
Eagle figurehead
goldwork bow and stern
stern gallery (like HMS RoyalSovereign)

Ok folks, beat me and build something weirder :-))

This post has been edited 1 times, last edit by "Commodore Green" (Jul 3rd 2011, 4:05pm)


10

Tuesday, October 31st 2006, 10:02pm

Teide Class CL

Teide, Iberia CL laid down 1925

Teide
Mulhacén
Aneto
Veleta
Llardana
Alcazaba

Displacement:
5,745 t light; 5,978 t standard; 6,952 t normal; 7,731 t full load

Dimensions: Length overall / water x beam x draught
565.13 ft / 547.90 ft x 52.49 ft x 17.55 ft (normal load)
172.25 m / 167.00 m x 16.00 m x 5.35 m

Armament:
9 - 5.98" / 152 mm guns (3x3 guns), 107.15lbs / 48.60kg shells, 1925 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
18 - 2.24" / 57.0 mm guns (6x3 guns), 5.65lbs / 2.56kg shells, 1925 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, 2 raised mounts - superfiring
24 - 0.98" / 25.0 mm guns (12x2 guns), 0.48lbs / 0.22kg shells, 1925 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 8 raised mounts
Weight of broadside 1,078 lbs / 489 kg
Shells per gun, main battery: 150
8 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.36" / 60 mm 429.79 ft / 131.00 m 9.19 ft / 2.80 m
Ends: Unarmoured
Main Belt covers 121 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.36" / 60 mm 0.79" / 20 mm 1.97" / 50 mm
2nd: 0.79" / 20 mm - -
3rd: 0.59" / 15 mm - -

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 68,609 shp / 51,183 Kw = 32.00 kts
Range 9,000nm at 15.00 kts
Bunker at max displacement = 1,753 tons

Complement:
379 - 494

Cost:
£2.049 million / $8.196 million

Distribution of weights at normal displacement:
Armament: 135 tons, 1.9 %
Armour: 1,205 tons, 17.3 %
- Belts: 376 tons, 5.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 127 tons, 1.8 %
- Armour Deck: 687 tons, 9.9 %
- Conning Tower: 15 tons, 0.2 %
Machinery: 2,228 tons, 32.0 %
Hull, fittings & equipment: 2,077 tons, 29.9 %
Fuel, ammunition & stores: 1,207 tons, 17.4 %
Miscellaneous weights: 100 tons, 1.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,534 lbs / 2,057 Kg = 42.3 x 6.0 " / 152 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 2.6 ft / 0.8 m
Roll period: 13.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.45
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.482
Length to Beam Ratio: 10.44 : 1
'Natural speed' for length: 23.41 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 4.92 ft / 1.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.33 ft / 6.50 m
- Forecastle (18 %): 19.69 ft / 6.00 m
- Mid (62 %): 19.69 ft / 6.00 m (11.48 ft / 3.50 m aft of break)
- Quarterdeck (18 %): 11.48 ft / 3.50 m
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 16.68 ft / 5.09 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 120.6 %
- Above water (accommodation/working, high = better): 122.7 %
Waterplane Area: 18,855 Square feet or 1,752 Square metres
Displacement factor (Displacement / loading): 102 %
Structure weight / hull surface area: 69 lbs/sq ft or 337 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.73
- Longitudinal: 0.90
- Overall: 0.75
Caution: Hull subject to strain in open-sea
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

11

Tuesday, October 31st 2006, 10:18pm

San Hainando Class CL

San Hainando, Iberia CL laid down 1928

San Hainando
Puerto Rico
Islas Canarias
Paracels
Islas Baleares

Displacement:
5,344 t light; 5,541 t standard; 6,299 t normal; 6,905 t full load

Dimensions: Length overall / water x beam x draught
554.00 ft / 525.00 ft x 50.00 ft x 17.00 ft (normal load)
168.86 m / 160.02 m x 15.24 m x 5.18 m

Armament:
9 - 5.98" / 152 mm guns (3x3 guns), 107.15lbs / 48.60kg shells, 1925 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
10 - 2.24" / 57.0 mm guns (5x2 guns), 5.65lbs / 2.56kg shells, 1921 Model
Dual purpose guns in deck mounts with hoists
on centreline, all amidships, 1 raised mount - superfiring
16 - 0.98" / 25.0 mm guns (8x2 guns), 0.48lbs / 0.22kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on centreline, all amidships, all raised mounts - superfiring
Weight of broadside 1,029 lbs / 467 kg
Shells per gun, main battery: 120
6 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 398.79 ft / 121.55 m 9.22 ft / 2.81 m
Ends: Unarmoured
Main Belt covers 117 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.15" / 80 mm 0.79" / 20 mm 1.97" / 50 mm
2nd: 1.18" / 30 mm - -

- Armour deck: 1.18" / 30 mm, Conning tower: 1.18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 2 shafts, 64,809 shp / 48,347 Kw = 33.00 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 1,364 tons

Complement:
353 - 459

Cost:
£2.205 million / $8.820 million

Distribution of weights at normal displacement:
Armament: 129 tons, 2.0 %
Armour: 1,019 tons, 16.2 %
- Belts: 469 tons, 7.5 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 146 tons, 2.3 %
- Armour Deck: 395 tons, 6.3 %
- Conning Tower: 9 tons, 0.1 %
Machinery: 2,018 tons, 32.0 %
Hull, fittings & equipment: 2,079 tons, 33.0 %
Fuel, ammunition & stores: 955 tons, 15.2 %
Miscellaneous weights: 100 tons, 1.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,404 lbs / 1,998 Kg = 41.1 x 6.0 " / 152 mm shells or 0.9 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 2.4 ft / 0.7 m
Roll period: 13.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.57
Seaboat quality (Average = 1.00): 1.21

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.494
Length to Beam Ratio: 10.50 : 1
'Natural speed' for length: 26.07 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 45.00 degrees
Stern overhang: 4.00 ft / 1.22 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.00 ft / 7.62 m
- Forecastle (20 %): 22.00 ft / 6.71 m
- Mid (40 %): 18.00 ft / 5.49 m
- Quarterdeck (15 %): 18.00 ft / 5.49 m
- Stern: 19.50 ft / 5.94 m
- Average freeboard: 19.55 ft / 5.96 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 121.1 %
- Above water (accommodation/working, high = better): 145.5 %
Waterplane Area: 18,087 Square feet or 1,680 Square metres
Displacement factor (Displacement / loading): 102 %
Structure weight / hull surface area: 66 lbs/sq ft or 323 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.70
- Longitudinal: 1.44
- Overall: 0.75
Caution: Hull subject to strain in open-sea
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

armour 12° inclined
Greek Style HA/LA turrets

This post has been edited 1 times, last edit by "Commodore Green" (Jul 3rd 2011, 3:59pm)


12

Saturday, September 25th 2010, 12:50am

Alba de Tormes Class

Alba de Tormes (Battle), Iberia CL-AA laid down 1939

Alba de Tormes, laid down 1939
Albuera, laid down 1939
Alcañiz, laid down 1939
Almaraz, laid down 1939
Barrosa, laid down 1940
Bailén, laid down 1940
Bussaco, laid down 1940
Benavente, laid down 1940
Campo Maior, laid down 1940
Castalla, laid down 1940
Castellón, laid down 1940
Chaves, laid down 1940
Nivelle, laid down 1941
Ordal, laid down 1941


Displacement:
4,244 t light; 4,496 t standard; 4,945 t normal; 5,304 t full load

Dimensions: Length overall / water x beam x draught
536.75 ft / 508.53 ft x 49.21 ft x 16.40 ft (normal load)
163.60 m / 155.00 m x 15.00 m x 5.00 m

Armament:
8 - 5.12" / 130 mm guns (4x2 guns), 67.03lbs / 30.40kg shells, 1939 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 2.24" / 57.0 mm guns (8x2 guns), 5.65lbs / 2.56kg shells, 1939 Model
Breech loading guns in deck mounts with hoists
on side, evenly spread, 4 raised mounts
24 - 0.98" / 25.0 mm guns (12x2 guns), 0.48lbs / 0.22kg shells, 1939 Model
Breech loading guns in deck mounts
on side, evenly spread, 8 raised mounts
Weight of broadside 638 lbs / 289 kg
Shells per gun, main battery: 400
8 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0.98" / 25 mm 413.71 ft / 126.10 m 16.40 ft / 5.00 m
Ends: Unarmoured
Main Belt covers 125 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.95" / 75 mm 1.97" / 50 mm 1.97" / 50 mm
2nd: 0.79" / 20 mm 0.79" / 20 mm 0.79" / 20 mm
3rd: 0.59" / 15 mm 0.59" / 15 mm -

- Armour deck: 0.98" / 25 mm, Conning tower: 2.95" / 75 mm

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 2 shafts, 60,998 shp / 45,504 Kw = 34.00 kts
Range 6,000nm at 15.00 kts
Bunker at max displacement = 807 tons

Complement:
294 - 383

Cost:
£2.598 million / $10.394 million

Distribution of weights at normal displacement:
Armament: 80 tons, 1.6 %
Armour: 741 tons, 15.0 %
- Belts: 267 tons, 5.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 160 tons, 3.2 %
- Armour Deck: 295 tons, 6.0 %
- Conning Tower: 18 tons, 0.4 %
Machinery: 1,650 tons, 33.4 %
Hull, fittings & equipment: 1,673 tons, 33.8 %
Fuel, ammunition & stores: 701 tons, 14.2 %
Miscellaneous weights: 100 tons, 2.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,084 lbs / 1,399 Kg = 46.0 x 5.1 " / 130 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 2.0 ft / 0.6 m
Roll period: 14.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.39
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.422
Length to Beam Ratio: 10.33 : 1
'Natural speed' for length: 25.93 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 35.00 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.25 ft / 8.00 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (42 %): 21.33 ft / 6.50 m (13.12 ft / 4.00 m aft of break)
- Quarterdeck (15 %): 13.12 ft / 4.00 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 17.34 ft / 5.29 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 125.1 %
- Above water (accommodation/working, high = better): 122.6 %
Waterplane Area: 16,216 Square feet or 1,506 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 63 lbs/sq ft or 307 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.71
- Longitudinal: 1.16
- Overall: 0.75
Caution: Hull subject to strain in open-sea
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


Designed primarily as Destroyer leaders, but with a secondary role as AA escorts.
Turrets are based on those used in Danish Valkyrie class cruisers.
Turrets simmed as triples, then added as misc weight, in this case 33 tons.

This post has been edited 2 times, last edit by "Commodore Green" (Feb 27th 2011, 9:51pm)


13

Wednesday, January 22nd 2014, 8:24pm

Espada Ropera class cruiser

Espada Ropera, laid down 1943
Espada Larga, laid down1943
Maza, laid down 1943
Hacha de Guerra, laid down 1943
Chafarote, laid down 1944
Alabarda, laid down 1944
Arcabuz, laid down 1945
Sable, laid down 1945
Daga, laid down 1945

Enter ship name, Enter country Enter ship type laid down 1943

Displacement:
6,136 t light; 6,472 t standard; 7,555 t normal; 8,422 t full load

Dimensions: Length overall / water x beam x draught
540.69 ft / 524.93 ft x 52.49 ft x 19.19 ft (normal load)
164.80 m / 160.00 m x 16.00 m x 5.85 m

Armament:
12 - 5.12" / 130 mm guns (6x2 guns), 67.03lbs / 30.40kg shells, 1943 Model
Dual purpose guns in deck mounts with hoists
on centreline, evenly spread, 4 raised mounts
16 - 2.24" / 57.0 mm guns (8x2 guns), 5.65lbs / 2.56kg shells, 1943 Model
Dual purpose guns in deck mounts
on side, all amidships
16 - 0.98" / 25.0 mm guns (8x2 guns), 0.48lbs / 0.22kg shells, 1943 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 902 lbs / 409 kg
Shells per gun, main battery: 300

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.95" / 75 mm 341.21 ft / 104.00 m 11.48 ft / 3.50 m
Ends: Unarmoured
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
2nd: 1.97" / 50 mm 0.98" / 25 mm 1.97" / 50 mm
3rd: 0.79" / 20 mm 0.39" / 10 mm -
4th: 0.39" / 10 mm - -

- Armour deck: 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 68,561 shp / 51,146 Kw = 32.50 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 1,950 tons

Complement:
404 - 526

Cost:
£3.649 million / $14.594 million

Distribution of weights at normal displacement:
Armament: 113 tons, 1.5 %
Armour: 1,248 tons, 16.5 %
- Belts: 481 tons, 6.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 71 tons, 0.9 %
- Armour Deck: 695 tons, 9.2 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,771 tons, 23.4 %
Hull, fittings & equipment: 2,760 tons, 36.5 %
Fuel, ammunition & stores: 1,419 tons, 18.8 %
Miscellaneous weights: 245 tons, 3.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
9,961 lbs / 4,518 Kg = 35.3 x 6 " / 152 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 2.3 ft / 0.7 m
Roll period: 14.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.43
Seaboat quality (Average = 1.00): 1.09

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 26.15 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 64
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: 25.26 ft / 7.70 m
- Forecastle (20 %): 20.34 ft / 6.20 m
- Mid (50 %): 18.70 ft / 5.70 m
- Quarterdeck (15 %): 17.06 ft / 5.20 m
- Stern: 17.06 ft / 5.20 m
- Average freeboard: 19.14 ft / 5.83 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 93.1 %
- Above water (accommodation/working, high = better): 167.8 %
Waterplane Area: 19,093 Square feet or 1,774 Square metres
Displacement factor (Displacement / loading): 127 %
Structure weight / hull surface area: 86 lbs/sq ft or 419 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.72
- 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

14

Saturday, May 14th 2016, 4:57pm

Balista Class Light Cruiser

The Balista class light cruisers are also incremental improvements on the preceding Espada Ropera class; basically, the only material change is additional miscellaneous weight set aside for electronics and fire control as a result of lighter engine weights.

A run of six units is foreseen as replacement of older light cruisers continues at pace.

Balista, laid down 1946
Alfange, laid down 1946
Tridente, laid down 1946

Enter ship name, Enter country Enter ship type laid down 1946

Displacement:
6,163 t light; 6,499 t standard; 7,555 t normal; 8,400 t full load

Dimensions: Length overall / water x beam x draught
540.69 ft / 524.93 ft x 52.49 ft x 19.19 ft (normal load)
164.80 m / 160.00 m x 16.00 m x 5.85 m

Armament:
12 - 5.12" / 130 mm guns (6x2 guns), 67.03lbs / 30.41kg shells, 1946 Model
Dual purpose guns in deck mounts with hoists
on centreline, evenly spread, 4 raised mounts
16 - 2.24" / 57.0 mm guns (8x2 guns), 5.65lbs / 2.56kg shells, 1946 Model
Dual purpose guns in deck mounts
on side, all amidships
16 - 0.98" / 25.0 mm guns (8x2 guns), 0.48lbs / 0.22kg shells, 1946 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 902 lbs / 409 kg
Shells per gun, main battery: 300

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.95" / 75 mm 341.21 ft / 104.00 m 13.12 ft / 4.00 m
Ends: Unarmoured
Main Belt covers 100 % of normal length

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

- Armour deck: 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 68,561 shp / 51,146 Kw = 32.50 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 1,902 tons

Complement:
404 - 526

Cost:
£3.901 million / $15.605 million

Distribution of weights at normal displacement:
Armament: 113 tons, 1.5 %
Armour: 1,273 tons, 16.9 %
- Belts: 550 tons, 7.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 28 tons, 0.4 %
- Armour Deck: 695 tons, 9.2 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,712 tons, 22.7 %
Hull, fittings & equipment: 2,745 tons, 36.3 %
Fuel, ammunition & stores: 1,392 tons, 18.4 %
Miscellaneous weights: 320 tons, 4.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10,091 lbs / 4,577 Kg = 35.7 x 6 " / 152 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 2.3 ft / 0.7 m
Roll period: 14.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.43
Seaboat quality (Average = 1.00): 1.10

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 26.15 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 64
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: 25.26 ft / 7.70 m
- Forecastle (20 %): 20.34 ft / 6.20 m
- Mid (50 %): 18.70 ft / 5.70 m
- Quarterdeck (15 %): 17.06 ft / 5.20 m
- Stern: 17.06 ft / 5.20 m
- Average freeboard: 19.14 ft / 5.83 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 91.7 %
- Above water (accommodation/working, high = better): 167.8 %
Waterplane Area: 19,093 Square feet or 1,774 Square metres
Displacement factor (Displacement / loading): 128 %
Structure weight / hull surface area: 85 lbs/sq ft or 417 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.73
- 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