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1

Saturday, January 10th 2009, 11:25pm

Destroyers

Summary
The Chilean Navy currently uses three main designations for its destroyer fleet.
-- DG: Destructor Grande (Destroyer, Large), a destroyer of over 3,000 tons standard displacement
-- DM: Destructor, Medio (Destroyer, Medium), a destroyer between 1,200 and 3,000 tons standard displacement
-- DL: Destructor, Ligero (Destroyer, Light), a destroyer or corvette of less than 1,200 tons standard displacement

There is no attempt to differentiate the DM of the destroyer hull numbers from the DM (Dragaminas) names of the Minesweepers, as hull numbers are only used for purposes of visual recognition of friendly ships; seamen are expected to recognize that the minesweeper DM-16 is different from the DM-44 Temerario. (At the present time, the number series do not overlap.)

Standard procedure in the Armada de Chile favors placing sisterships together in squadrons whenever possible. The standard Destroyer Squadron is made up of two Destroyer Flotillas. The ranking officer of the four-ship Flotilla is designated the Flotilla Commander, and exercises control over his four-ship element. The Squadron is commanded by a senior Capitan de Navio or full Comodoro, who flies his flag on the lead ship of the first destroyer flotilla.

Current practice is to order destroyers in four or eight-ship strong "flights". Each flight is preferably ordered in the same year from the same yard. This practice has been followed with the newly-built Eyzaguirre and Frey class destroyers, which form the Second and Sixth Destroyer Squadrons respectively. The secondhand Atlantean Alphabet-class destroyer escorts, purchased and refitted in eight-ship groups, form the Fifth, Ninth, and Tenth Destroyer Squadrons, in much the same manner.

As most of the ships procured before 1935 were not acquired under this practice, many of these ships are grouped with non-similar vessels. The First Destroyer Squadron is composed of two different types: six Thompson class destroyers and two Condell-class destroyers. In this unusual case, the Condell-class destroyers, being larger and equipped with squadron command facilities, function as the flotilla flagships.

Index of Classes and Vessels

Heavy Destroyers (DG)
Angamos-class Heavy Destroyers
- Angamos (DG-16): Laid down at Talcahuano July 1940, completed August 1941.
- Iquique (DG-17): Laid down at Talcahuano October 1940, completed November 1941.
- Punta Gruesa (DG-18): Laid down at Talcahuano July 1941, planned for completion August 1942.
- Casma (DG-19): Laid down at Talcahuano October 1941, completed November 1942.
- Papudo (DG-20): Laid down at Talcahuano January 1942, completed February 1943.
- Chipana (DG-21): Laid down at Talcahuano April 1942, completed May 1943.
- Talcahuano (DG-22): Laid down at Talcahuano July 1942, completed July 1943.
- Abtao (DG-23): Laid down at Talcahuano October 1942, completed October 1943.

Medium Destroyers (DM)
Almirante Lynch-class Destroyers
- Almirante Zero (DM-19) - 1932 (Sunk 1937)
- Almirante Lynch (DM-20) - 1933
- Almirante Condell (DM-21) - 1933

Capitan Thompson-class Destroyers
- Capitan Thompson (DM-23) - 1932
- Capitan Lira (DM-24) - 1932
- Capitan Toro (DM-25) - 1932
- Capitan Carrera (DM-26) - 1933
- General Escala (DM-27) - 1933
- General Lagos (DM-28) - 1933

Capitan Eyzaguirre-class Destroyers
- Capitan Eyzaguirre (DM-36) - 1936
- General San Martin (DM-37) - 1937
- Capitan Ferguson (DM-38) - 1937
- Capitan Chavez (DM-39) - 1937
- Capitan Rodríguez (DM-40) - 1937
- General Mackenna (DM-41) - 1937
- General Baquedano (DM-42) - 1937
- General Bulnes (DM-43) - 1937

Temerario-class Destroyers
- Temerario (DM-44) - 1922 (acquired 1938)
- Aleatorio (DM-45) - 1922 (acquired 1938)
- Magnífico (DM-46) - 1922 (acquired 1938)
- Unánime (DM-47) - 1922 (acquired 1938)
- Valeroso (DM-48) - 1922 (acquired 1938)
- Estratégico (DM-49) - 1922 (acquired 1938)
- Cobrizo (DM-50) - 1922 (acquired 1938)
- Concordante (DM-51) - 1922 (acquired 1938)
- Meritorio (DM-52) - 1922 (acquired 1938)
- Llameante (DM-53) - 1922 (acquired 1938)
- Sabedor (DM-54) - 1922 (acquired 1938)
- Rápido (DM-55) - 1922 (acquired 1938)

Voluntario-class Destroyers
- Voluntario (DM-56) - 1924
- Peleador (DM-57) - 1924
- Caballeroso (DM-58) - 1924
- Celeste (DM-59) - 1924
- Caprichoso (DM-60) - 1924
- Feroz (DM-61) - 1924

Almirante Williams-class Destroyers
- Almirante Williams (DM-62): Laid down at Talcahuano January 1944, completed December 1944.
- Almirante Riveros (DM-63): Laid down at Talcahuano January 1944, completed December 1944.

Light Destroyers (DL)
Capitan Frey-class Light Destroyers
- Capitan Frey (DL-07): 1937
- Capitan Guzman (DL-08): 1937
- Capitan Carranza (DL-09): 1937
- Teniente Susa (DL-10): 1937
- Teniente Estrada (DL-11): 1937
- Almirante Rebolledo (DL-12): 1937
- General de la Lastra (DL-13): 1937
- Teniente Molinas (DL-14): 1937

Bolados-class Destroyer Escorts
- Bolados (DL-15): Laid down at Talcahuano January 1942, completed November 1942.
- Téllez (DL-16): Laid down at Talcahuano April 1942, completed February 1943.
- Bravo (DL-17): Laid down at Talcahuano July 1942, completed May 1943.
- Machado (DL-18): Laid down at Talcahuano October 1942, completed August 1943.
- Díaz (DL-19): Laid down at Talcahuano January 1943, completed November 1943.
- Troncoso (DL-20): Laid down at Talcahuano April 1943, completed February 1944.
- Litton (DL-21): Laid down at Talcahuano July 1943, completed May 1944.
- Salinas (DL-22): Laid down at Talcahuano October 1943, completed August 1944.

2

Saturday, January 10th 2009, 11:42pm

Almirante Lynch-class, Chilean Destroyer (Heavy) laid down 1932
Sim by Ithekro

Displacement:
1,986 t light; 2,096 t standard; 2,450 t normal; 2,733 t full load

Dimensions: Length overall / water x beam x draught
392.00 ft / 384.00 ft x 37.00 ft x 14.00 ft (normal load)
119.48 m / 117.04 m x 11.28 m x 4.27 m

Armament:
8 - 5.10" / 130 mm guns (4x2 guns), 66.33lbs / 30.08kg shells, 1933 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, all amidships
6 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1933 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 543 lbs / 246 kg
Shells per gun, main battery: 200
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm 0.50" / 13 mm -
2nd: 0.50" / 13 mm - -
3rd: 0.50" / 13 mm - -

- Conning tower: 1.00" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 39,597 shp / 29,539 Kw = 33.00 kts
Range 7,000nm at 15.00 kts
Bunker at max displacement = 636 tons

Complement:
173 - 226

Cost:
£1.300 million / $5.199 million

Distribution of weights at normal displacement:
Armament: 68 tons, 2.8 %
Armour: 23 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 20 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 4 tons, 0.2 %
Machinery: 1,060 tons, 43.3 %
Hull, fittings & equipment: 815 tons, 33.3 %
Fuel, ammunition & stores: 464 tons, 18.9 %
Miscellaneous weights: 20 tons, 0.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
883 lbs / 400 Kg = 13.3 x 5.1 " / 130 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 1.6 ft / 0.5 m
Roll period: 12.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.96
Seaboat quality (Average = 1.00): 1.26

Hull form characteristics:
Hull has rise forward of midbreak, low quarterdeck
and transom stern
Block coefficient: 0.431
Length to Beam Ratio: 10.38 : 1
'Natural speed' for length: 22.49 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 19.99 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.00 ft / 6.71 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (50 %): 20.00 ft / 6.10 m (16.00 ft / 4.88 m aft of break)
- Quarterdeck (15 %): 12.00 ft / 3.66 m (16.00 ft / 4.88 m before break)
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 17.56 ft / 5.35 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 162.6 %
- Above water (accommodation/working, high = better): 93.8 %
Waterplane Area: 9,272 Square feet or 861 Square metres
Displacement factor (Displacement / loading): 85 %
Structure weight / hull surface area: 42 lbs/sq ft or 204 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.54
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
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:
- Almirante Zero (DD-19) - 1932 (Sunk 1937)
- Almirante Lynch (DD-20) - 1933
- Almirante Condell (DD-21) - 1933

3

Saturday, January 10th 2009, 11:45pm

Capitan Thompson, Chilean Destroyer laid down 1932 (Refitted 1943)
As refitted. (See below for original design.)

Displacement:
1,369 t light; 1,479 t standard; 1,701 t normal; 1,879 t full load

Dimensions: Length overall / water x beam x draught
363.00 ft / 350.00 ft x 35.00 ft x 12.00 ft (normal load)
110.64 m / 106.68 m x 10.67 m x 3.66 m

Armament:
4 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.40kg shells, 1941 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, all amidships
8 - 1.10" / 27.9 mm guns (4x2 guns), 0.67lbs / 0.30kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 289 lbs / 131 kg
Shells per gun, main battery: 450
4 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.50" / 13 mm 0.50" / 13 mm -
2nd: 0.25" / 6 mm - -
3rd: 0.25" / 6 mm - -

- Conning tower: 0.50" / 13 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 32,315 shp / 24,107 Kw = 33.00 kts
Range 6,000nm at 15.00 kts
Bunker at max displacement = 400 tons

Complement:
132 - 172

Cost:
£0.829 million / $3.317 million

Distribution of weights at normal displacement:
Armament: 36 tons, 2.1 %
Armour: 11 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 9 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 2 tons, 0.1 %
Machinery: 744 tons, 43.7 %
Hull, fittings & equipment: 523 tons, 30.7 %
Fuel, ammunition & stores: 332 tons, 19.5 %
Miscellaneous weights: 55 tons, 3.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
641 lbs / 291 Kg = 9.6 x 5.1 " / 130 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.33
Metacentric height 1.7 ft / 0.5 m
Roll period: 11.2 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.27
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.405
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 21.62 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 59
Bow angle (Positive = bow angles forward): 24.62 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (50 %): 20.00 ft / 6.10 m (11.00 ft / 3.35 m aft of break)
- Quarterdeck (15 %): 11.00 ft / 3.35 m
- Stern: 11.00 ft / 3.35 m
- Average freeboard: 15.82 ft / 4.82 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 164.4 %
- Above water (accommodation/working, high = better): 133.0 %
Waterplane Area: 7,849 Square feet or 729 Square metres
Displacement factor (Displacement / loading): 84 %
Structure weight / hull surface area: 34 lbs/sq ft or 164 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.36
- Overall: 0.59
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

Breakdown of Miscellaneous Weights:
- 15 tons for Colocolo launchers
- 5 tons for hydrophones
- 5 tons for depth charges (24x420-lb bombs)
- 30 tons for dradis and electronics suite

Ships in Class:
- Capitan Thompson (DD-23) - 1932, refitted 1943.
- Capitan Lira (DD-24) - 1932, refitted 1943.
- Capitan Toro (DD-25) - 1932, refitted 1943.
- Capitan Carrera (DD-26) - 1933, refitted 1943.
- General Escala (DD-27) - 1933, refitted 1944.
- General Lagos (DD-28) - 1933, refitted 1944.

* * * * *


Capitan Thompson-class, Chilean Destroyer laid down 1932
Sim by Ithekro

Displacement:
1,389 t light; 1,455 t standard; 1,700 t normal; 1,896 t full load

Dimensions: Length overall / water x beam x draught
363.00 ft / 350.00 ft x 35.00 ft x 12.00 ft (normal load)
110.64 m / 106.68 m x 10.67 m x 3.66 m

Armament:
4 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.40kg shells, 1932 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on centreline, all aft
6 - 0.50" / 12.7 mm guns (4 mounts), 0.06lbs / 0.03kg shells, 1932 Model
Machine guns in deck mounts
on side, all amidships, 4 raised mounts - superfiring
Weight of broadside 281 lbs / 127 kg
Shells per gun, main battery: 200
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.50" / 13 mm 0.50" / 13 mm -
2nd: 0.25" / 6 mm - -
3rd: 0.25" / 6 mm - -

- Conning tower: 0.50" / 13 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 32,297 shp / 24,094 Kw = 33.00 kts
Range 6,000nm at 15.00 kts
Bunker at max displacement = 441 tons

Complement:
132 - 172

Cost:
£0.862 million / $3.447 million

Distribution of weights at normal displacement:
Armament: 35 tons, 2.1 %
Armour: 10 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 9 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 2 tons, 0.1 %
Machinery: 796 tons, 46.8 %
Hull, fittings & equipment: 512 tons, 30.1 %
Fuel, ammunition & stores: 311 tons, 18.3 %
Miscellaneous weights: 35 tons, 2.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
601 lbs / 273 Kg = 9.0 x 5.1 " / 130 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.39
Metacentric height 1.8 ft / 0.6 m
Roll period: 10.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.25
Seaboat quality (Average = 1.00): 1.21

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.405
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 21.62 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 24.62 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (50 %): 20.00 ft / 6.10 m (11.00 ft / 3.35 m aft of break)
- Quarterdeck (15 %): 11.00 ft / 3.35 m
- Stern: 11.00 ft / 3.35 m
- Average freeboard: 15.82 ft / 4.82 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 169.9 %
- Above water (accommodation/working, high = better): 94.4 %
Waterplane Area: 7,848 Square feet or 729 Square metres
Displacement factor (Displacement / loading): 76 %
Structure weight / hull surface area: 33 lbs/sq ft or 160 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.31
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
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:
All refitted, se above

4

Saturday, January 10th 2009, 11:59pm

Capitan Eyzaguirre class Destroyer


Image by thesmilingassassin and lightly modified by me.

This eight-ship class is intended to form the protective flotilla for the future aircraft carrier Libertad.

Capitan Eyzaguirre-class, Chilean Destroyer laid down 1937

Displacement:
1,688 t light; 1,796 t standard; 2,034 t normal; 2,224 t full load

Dimensions: Length overall / water x beam x draught
394.37 ft / 385.00 ft x 36.00 ft x 12.20 ft (normal load)
120.20 m / 117.35 m x 10.97 m x 3.72 m

Armament:
8 - 5.12" / 130 mm guns (4x2 guns), 67.03lbs / 30.40kg shells, 1937 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
2 - 0.79" / 20.0 mm guns (1x2 guns), 0.24lbs / 0.11kg shells, 1937 Model
Anti-aircraft guns in deck mount
on side, all raised guns
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
6 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1937 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 546 lbs / 248 kg
Shells per gun, main battery: 220
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.98" / 25 mm -

- Conning tower: 1.57" / 40 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 38,240 shp / 28,527 Kw = 33.75 kts
Range 5,400nm at 15.00 kts
Bunker at max displacement = 427 tons

Complement:
150 - 196

Cost:
£1.313 million / $5.250 million

Distribution of weights at normal displacement:
Armament: 68 tons, 3.4 %
Armour: 33 tons, 1.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 28 tons, 1.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 5 tons, 0.3 %
Machinery: 887 tons, 43.6 %
Hull, fittings & equipment: 654 tons, 32.2 %
Fuel, ammunition & stores: 346 tons, 17.0 %
Miscellaneous weights: 45 tons, 2.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
714 lbs / 324 Kg = 10.6 x 5.1 " / 130 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.34
Metacentric height 1.8 ft / 0.6 m
Roll period: 11.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.28

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.421
Length to Beam Ratio: 10.69 : 1
'Natural speed' for length: 22.50 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 55
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: 25.75 ft / 7.85 m
- Forecastle (20 %): 20.50 ft / 6.25 m
- Mid (50 %): 20.50 ft / 6.25 m (12.00 ft / 3.66 m aft of break)
- Quarterdeck (15 %): 12.00 ft / 3.66 m
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 16.67 ft / 5.08 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 170.1 %
- Above water (accommodation/working, high = better): 91.3 %
Waterplane Area: 8,977 Square feet or 834 Square metres
Displacement factor (Displacement / loading): 74 %
Structure weight / hull surface area: 36 lbs/sq ft or 176 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.25
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Breakdown of Miscellaneous Weights:
- 35 tons for electronics (dradis, asdic, etc)
- 10 tons for extra depth charges

Ships in Class:
- Capitan Eyzaguirre (DD-36) - 1936
- General San Martin (DD-37) - 1937
- Capitan Ferguson (DD-38) - 1937
- Capitan Chavez (DD-39) - 1937
- Capitan Rodríguez (DD-40) - 1937
- General Mackenna (DD-41) - 1937
- General Baquedano (DD-42) - 1937
- General Bulnes (DD-43) - 1937

Comments and Notes:
The eight destroyers of the Capitan Eyzaguirre class were first ordered as part of the 1936 Naval Bill. To save time in getting construction underway, the design of the Atlantean "K"-class destroyer was purchased and placed into production, with only minor changes. The Eyzaguirres were in many respects lighter versions of the Almirante Zero-class heavy destroyers. The newer ships, however, had only deck mounts rather than full hoist mounts like the Zeros. As a result, the 130mm guns aboard Eyzaguirre did not quite equal the rate of fire of the older ships, and the hoist mounts were reintroduced on all following destroyers. In all other respects, however, the Eyzaguirres had good overall performance.

All eight ships were retrofitted with a radar in 1941.

5

Sunday, May 17th 2009, 9:00am

Capitan Frey-class Light Destroyer

Capitan Frey class, Chilean Corvette laid down 1937
These eight ships were originally intended to be "light destroyers". After several years of operation, the Armada determined that the Freys were too slow and too lightly-armed for frontline duties, but most of all, they were some of the worst seaboats in the Navy. This resulted in their posting in Arica, where the problem is less acute. Strategically, their role was the escort of coastal convoys for protection against submarines and surface raiders.

Over the course of 1943 and 1944, the class was rebuilt as dedicated fast antisubmarine frigates, equipping them with radar and updated sonar. This resulted in the ships losing their aft 110mm mount (the Armada feels 2x110mm is more than sufficient to fight any submarine). Although informally re-classified as "corvettes" in standard parlance, the ships retained their 'DL' hull markings and numbers.

Displacement:
733 t light; 763 t standard; 865 t normal; 947 t full load

Dimensions: Length overall / water x beam x draught
253.82 ft / 246.06 ft x 26.90 ft x 11.15 ft (normal load)
77.37 m / 75.00 m x 8.20 m x 3.40 m

Armament:
2 - 4.33" / 110 mm guns (1x2 guns), 40.61lbs / 18.42kg shells, 1943 Model
Dual purpose guns in a deck mount with hoist
on centreline forward
8 - 1.10" / 27.9 mm guns (2x4 guns), 0.67lbs / 0.30kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, all amidships
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1937 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 87 lbs / 39 kg
Shells per gun, main battery: 250

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.38" / 35 mm 0.98" / 25 mm 1.18" / 30 mm
2nd: 0.59" / 15 mm - -

- Conning tower: 1.57" / 40 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 18,771 shp / 14,003 Kw = 30.64 kts
Range 6,500nm at 12.00 kts
Bunker at max displacement = 184 tons

Complement:
79 - 103

Cost:
£0.494 million / $1.977 million

Distribution of weights at normal displacement:
Armament: 11 tons, 1.3 %
Armour: 10 tons, 1.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 7 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.4 %
Machinery: 399 tons, 46.1 %
Hull, fittings & equipment: 258 tons, 29.8 %
Fuel, ammunition & stores: 132 tons, 15.3 %
Miscellaneous weights: 55 tons, 6.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
257 lbs / 117 Kg = 6.3 x 4.3 " / 110 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 0.9 ft / 0.3 m
Roll period: 12.1 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.28
Seaboat quality (Average = 1.00): 0.83

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.410
Length to Beam Ratio: 9.15 : 1
'Natural speed' for length: 18.25 kts
Power going to wave formation at top speed: 72 %
Trim (Max stability = 0, Max steadiness = 100): 64
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: 21.33 ft / 6.50 m
- Forecastle (25 %): 16.73 ft / 5.10 m
- Mid (41 %): 16.73 ft / 5.10 m (8.86 ft / 2.70 m aft of break)
- Quarterdeck (15 %): 8.86 ft / 2.70 m
- Stern: 8.86 ft / 2.70 m
- Average freeboard: 12.55 ft / 3.82 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 166.2 %
- Above water (accommodation/working, high = better): 112.4 %
Waterplane Area: 4,255 Square feet or 395 Square metres
Displacement factor (Displacement / loading): 73 %
Structure weight / hull surface area: 29 lbs/sq ft or 139 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.51
- Longitudinal: 3.24
- Overall: 0.61
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Breakdown of Miscellaneous Weights:
- 15 tons for Colocolo launchers
- 5 tons for hydrophones
- 5 tons for depth charges (24x420-lb bombs)
- 30 tons for dradis and electronics suite

Ships in Class:
- Capitan Frey (DL-07) - 1937, refitted 1943.
- Capitan Guzman (DL-08) - 1937, refitted 1943.
- Capitan Carranza (DL-09) - 1937, refitted 1943.
- Teniente Susa (DL-10) - 1937, refitted 1943.
- Teniente Estrada (DL-11) - 1937, refitted 1944.
- Almirante Rebolledo (DL-12) - 1937, refitted 1944.
- General de la Lastra (DL-13) - 1937, refitted 1944.
- Teniente Molinas (DL-14) - 1937, refitted 1944.

* * * * *


Capitan Frey-class, Chilean Light Destroyer laid down 1937
Design by Hooman - aka SAE Bird-class Light Destroyer

Displacement:
719 t light; 763 t standard; 865 t normal; 947 t full load

Dimensions: Length overall / water x beam x draught
253,82 ft / 246,06 ft x 26,90 ft x 11,15 ft (normal load)
77,37 m / 75,00 m x 8,20 m x 3,40 m

Armament:
4 - 4,33" / 110 mm guns (2x2 guns), 44,09lbs / 20,00kg shells, 1937 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread
4 - 1,46" / 37,0 mm guns (2x2 guns), 1,55lbs / 0,70kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
6 - 0,79" / 20,0 mm guns (4 mounts), 0,24lbs / 0,11kg shells, 1937 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 184 lbs / 83 kg
Shells per gun, main battery: 250
4 - 21,0" / 533 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,38" / 35 mm 0,98" / 25 mm 1,18" / 30 mm
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 18.767 shp / 14.000 Kw = 30,64 kts
Range 6.500nm at 12,00 kts
Bunker at max displacement = 184 tons

Complement:
79 - 103

Cost:
£0,528 million / $2,111 million

Distribution of weights at normal displacement:
Armament: 21 tons, 2,5%
Armour: 14 tons, 1,6%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 14 tons, 1,6%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 384 tons, 44,4%
Hull, fittings & equipment: 275 tons, 31,8%
Fuel, ammunition & stores: 146 tons, 16,8%
Miscellaneous weights: 25 tons, 2,9%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
247 lbs / 112 Kg = 6,1 x 4,3 " / 110 mm shells or 0,2 torpedoes
Stability (Unstable if below 1.00): 1,09
Metacentric height 0,8 ft / 0,3 m
Roll period: 12,4 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0,62
Seaboat quality (Average = 1.00): 0,80

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,410
Length to Beam Ratio: 9,15 : 1
'Natural speed' for length: 18,25 kts
Power going to wave formation at top speed: 72 %
Trim (Max stability = 0, Max steadiness = 100): 64
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: 21,33 ft / 6,50 m
- Forecastle (25%): 16,73 ft / 5,10 m
- Mid (41%): 16,73 ft / 5,10 m (8,86 ft / 2,70 m aft of break)
- Quarterdeck (15%): 8,86 ft / 2,70 m
- Stern: 8,86 ft / 2,70 m
- Average freeboard: 12,55 ft / 3,82 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 166,8%
- Above water (accommodation/working, high = better): 65,7%
Waterplane Area: 4.255 Square feet or 395 Square metres
Displacement factor (Displacement / loading): 69%
Structure weight / hull surface area: 30 lbs/sq ft or 148 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,50
- Longitudinal: 3,26
- Overall: 0,60
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Breakdown of Miscellaneous Weights:
- 5 tons for hydrophones
- 10 tons for extra depth charges

Ships in Class:
- Capitan Frey (DL-07) - 1937
- Capitan Guzman (DL-08) - 1937
- Capitan Carranza (DL-09) - 1937
- Teniente Susa (DL-10) - 1937
- Teniente Estrada (DL-11) - 1937
- Almirante Rebolledo (DL-12) - 1937
- General de la Lastra (DL-13) - 1937
- Teniente Molinas (DL-14) - 1937

6

Sunday, May 17th 2009, 9:05am

Temerario-class destroyer


Drawing by Alvama, thanks Alvama! Sim by Earl822.

Temerario-class, Chilean Destroyer laid down 1922 (Engine 1941)
The twelve Temerarios were acquired in great haste from Nordmark during the Peruvian War, when the Chilean Navy urgently needed more destroyers. They turned out to be an excellent purchase, as they've got decent enough size, speed, and armament. In 1941, a refit program began to bring the ships up to a fairly modern standard.

Displacement:
1,376 t light; 1,450 t standard; 1,656 t normal; 1,821 t full load

Dimensions: Length overall / water x beam x draught
337.70 ft / 334.00 ft x 31.10 ft x 12.40 ft (normal load)
102.93 m / 101.80 m x 9.48 m x 3.78 m

Armament:
4 - 4.33" / 110 mm guns in single mounts, 40.61lbs / 18.42kg shells, 1941 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
2 - 3.00" / 76.2 mm guns (1x2 guns), 13.50lbs / 6.12kg shells, 1941 Model
Anti-aircraft guns in deck mount
on centreline amidships
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 197 lbs / 89 kg
Shells per gun, main battery: 350
4 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm 0.50" / 13 mm -

- Conning tower: 3.00" / 76 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 35,732 shp / 26,656 Kw = 33.50 kts
Range 5,500nm at 15.00 kts
Bunker at max displacement = 371 tons

Complement:
129 - 168

Cost:
£0.490 million / $1.959 million

Distribution of weights at normal displacement:
Armament: 25 tons, 1.5 %
Armour: 18 tons, 1.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 9 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 9 tons, 0.5 %
Machinery: 791 tons, 47.8 %
Hull, fittings & equipment: 487 tons, 29.4 %
Fuel, ammunition & stores: 280 tons, 16.9 %
Miscellaneous weights: 55 tons, 3.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
476 lbs / 216 Kg = 11.7 x 4.3 " / 110 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 1.1 ft / 0.3 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.55
Seaboat quality (Average = 1.00): 0.99

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 10.74 : 1
'Natural speed' for length: 20.87 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 71
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (20 %): 17.00 ft / 5.18 m
- Mid (45 %): 17.00 ft / 5.18 m (12.70 ft / 3.87 m aft of break)
- Quarterdeck (15 %): 12.70 ft / 3.87 m
- Stern: 12.70 ft / 3.87 m
- Average freeboard: 14.96 ft / 4.56 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 170.9 %
- Above water (accommodation/working, high = better): 107.2 %
Waterplane Area: 6,883 Square feet or 639 Square metres
Displacement factor (Displacement / loading): 77 %
Structure weight / hull surface area: 33 lbs/sq ft or 161 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.40
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Breakdown of Miscellaneous Weights:
- 15 tons for Kodkod or Colocolo (probable 1940 installation)
- 5 tons for paravanes and minesweeping equipment
- 5 tons for hydrophones
- 15 tons for depth charges (70x420-lb bombs) or mines (16x2000-lb mines)
- 15 tons for basic electronics

--------------------------


Temerario-class, Nordish-built Chilean Destroyers laid down 1922

Displacement:
1,448 t light; 1,500 t standard; 1,656 t normal; 1,781 t full load

Dimensions: Length overall / water x beam x draught
337.70 ft / 334.00 ft x 31.10 ft x 12.40 ft (normal load)
102.93 m / 101.80 m x 9.48 m x 3.78 m

Armament:
4 - 4.33" / 110 mm guns in single mounts, 40.61lbs / 18.42kg shells, 1922 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1922 Model
Anti-aircraft guns in deck mounts
on side, all amidships
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1922 Model
Breech loading guns in deck mounts
on side, evenly spread
2 - 1.90" / 48.3 mm guns in single mounts, 3.43lbs / 1.56kg shells, 1922 Model
Quick firing guns in deck mounts
on side, evenly spread
Weight of broadside 203 lbs / 92 kg
Shells per gun, main battery: 150
4 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm 0.50" / 13 mm -

- Conning tower: 3.00" / 76 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 38,031 shp / 28,371 Kw = 34.00 kts
Range 4,000nm at 14.00 kts
Bunker at max displacement = 282 tons

Complement:
129 - 168

Cost:
£0.542 million / $2.167 million

Distribution of weights at normal displacement:
Armament: 25 tons, 1.5 %
Armour: 18 tons, 1.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 9 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 9 tons, 0.5 %
Machinery: 905 tons, 54.6 %
Hull, fittings & equipment: 485 tons, 29.3 %
Fuel, ammunition & stores: 208 tons, 12.5 %
Miscellaneous weights: 15 tons, 0.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
392 lbs / 178 Kg = 9.7 x 4.3 " / 110 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 1.1 ft / 0.3 m
Roll period: 12.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.55
Seaboat quality (Average = 1.00): 0.94

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 10.74 : 1
'Natural speed' for length: 20.87 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 74
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (15 %): 17.00 ft / 5.18 m
- Mid (45 %): 17.00 ft / 5.18 m (12.70 ft / 3.87 m aft of break)
- Quarterdeck (15 %): 12.70 ft / 3.87 m
- Stern: 12.70 ft / 3.87 m
- Average freeboard: 14.88 ft / 4.53 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 189.0 %
- Above water (accommodation/working, high = better): 108.6 %
Waterplane Area: 6,883 Square feet or 639 Square metres
Displacement factor (Displacement / loading): 59 %
Structure weight / hull surface area: 33 lbs/sq ft or 162 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.34
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Breakdown of Miscellaneous Weights:
Not available

Ships in Class:
- Temerario (DD-44) - 1922/1938
- Aleatorio (DD-45) - 1922/1938
- Magnífico (DD-46) - 1922/1938
- Unánime (DD-47) - 1922/1938
- Valeroso (DD-48) - 1922/1938
- Estratégico (DD-49) - 1922/1938
- Cobrizo (DD-50) - 1922/1938
- Concordante (DD-51) - 1922/1938
- Meritorio (DD-52) - 1922/1938
- Llameante (DD-53) - 1922/1938
- Sabedor (DD-54) - 1922/1938
- Rápido (DD-55) - 1922/1938

Comments and Notes:
The Temerario-class, formerly the Nordish 22-class destroyers, were purchased in late 1937 but not delivered until after the Peruvian War was settled. The ships were sorted out into two six-ship squadrons, with Temerario, Aleatorio, Magnífico, Unánime, Valeroso, and Estratégico replacing the lost ships of the 4th Destroyer Squadron, and Cobrizo, Concordante, Meritorio, Llameante, Sabedor, and Rápido forming the new 7th Destroyer Squadron.

In a break from tradition, the ships of the class were not named after naval heroes.

7

Wednesday, April 6th 2011, 4:21pm


Image originally by thesmilingassassin and modified by me.

Battle-class, Chilean Destroyer Leader laid down 1940
The Battle-class (unofficially sometimes called the Angamos-class) was an outgrowth of the Chilean Navy's harsh experience at the Battle of Ilo, where four large Peruvian destroyers led by the Independencia wiped out a division of much smaller Chilean "light destroyers". This experience shattered the Chilean Navy's opinion of small surface escorts and led to a massive upswing in the size of Chilean destroyers designed postwar. Simultaneously, the Armada felt the converted "flak cruisers" Astraea and Tierra del Fuego provided excellent service during the war, and the Naval Design Board proposed new-built design.

Due to budgetary concerns - the Magallanes-class "light cruisers" were growing and eating up increased portions of the 1940 budget - the Navy factions decided to forge a compromise with the Battle-class, building a hybrid of the "heavy destroyer" and the "flak cruiser". This led inadvertently to a secondary argument over how to classify the ships: the Battles were unarmoured and clearly smaller than most light cruisers, while they substantially outgunned and outmassed most destroyers. The Armada finally settled on calling them "destroyer leaders" (although this was a misnomer as they operated together, rather than as flagships for flotillas). In a nod to the counter-arguments, however, the Battles received hull numbers in sequence with cruisers, and carried the designation "CLD" for "Light Cruiser, Dual Role".

The Battles were one of the first ships in the Chilean Navy to use the CODAS (combined diesel and steam) power arrangement. This arrangement used a pair of Austral-licensed B&W maritime diesels for economical cruising up to approximately sixteen knots, and two steam turbines to make "dash speeds" up to thirty-four knots. The diesels also provided enough electricity to operate the increasing quantities of electrical systems installed aboard Chilean warships, such as dradis. Although there was some uncertainty in the Armada regarding the reliability of maritime diesels, the B&Ws proved to be more reliable in operation than regular steam plants.

Displacement:
3,575 t light; 3,838 t standard; 4,345 t normal; 4,751 t full load

Dimensions: Length overall / water x beam x draught
507.64 ft / 492.13 ft x 47.57 ft x 14.76 ft (normal load)
154.73 m / 150.00 m x 14.50 m x 4.50 m

Armament:
8 - 5.12" / 130 mm guns (4x2 guns), 67.03lbs / 30.40kg shells, 1940 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 3.00" / 76.2 mm guns (4x2 guns), 13.50lbs / 6.12kg shells, 1940 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 660 lbs / 299 kg
Shells per gun, main battery: 450
8 - 23.6" / 600 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 1.50" / 38 mm 1.00" / 25 mm 1.00" / 25 mm

- Conning tower: 2.00" / 51 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Electric motors, 2 shafts, 57,694 shp / 43,040 Kw = 34.00 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 913 tons

Complement:
266 - 347

Cost:
£2.543 million / $10.174 million

Distribution of weights at normal displacement:
Armament: 99 tons, 2.3 %
Armour: 68 tons, 1.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 57 tons, 1.3 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 11 tons, 0.3 %
Machinery: 1,543 tons, 35.5 %
Hull, fittings & equipment: 1,705 tons, 39.2 %
Fuel, ammunition & stores: 771 tons, 17.7 %
Miscellaneous weights: 160 tons, 3.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,702 lbs / 1,226 Kg = 40.3 x 5.1 " / 130 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 2.1 ft / 0.6 m
Roll period: 13.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.54
Seaboat quality (Average = 1.00): 1.09

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.440
Length to Beam Ratio: 10.34 : 1
'Natural speed' for length: 25.44 kts
Power going to wave formation at top speed: 61 %
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: 24.61 ft / 7.50 m
- Forecastle (20 %): 21.33 ft / 6.50 m
- Mid (50 %): 18.04 ft / 5.50 m
- Quarterdeck (20 %): 11.48 ft / 3.50 m (18.04 ft / 5.50 m before break)
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 18.14 ft / 5.53 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 139.1 %
- Above water (accommodation/working, high = better): 145.9 %
Waterplane Area: 15,385 Square feet or 1,429 Square metres
Displacement factor (Displacement / loading): 106 %
Structure weight / hull surface area: 65 lbs/sq ft or 319 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.72
- Longitudinal: 1.53
- Overall: 0.78
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

Breakdown of Miscellaneous Weights:
- 65 tons for Suite-42a electronics
- 18 tons for eight reload torpedoes (4,410 lb each)
- 15 tons for Colocolo antisubmarine rocket-launched depth charges
- 10 tons for air-conditioning and heating
- 12 tons for depth charges (56x420-lb bombs)
- 10 tons for miscellaneous radio, electronics and ECM gear
- 30 tons for crew comforts and future additions
160 tons total miscellaneous weight

Suite-42a Electronics
- Type 102 "Cactus" surface search radars (2 radars, 15 tons)
- Type 203 "Cabrillas" air search radars (1 radar, 5 tons)
- Type 301 "Boldo" fire-control radars (1 radar, 10 tons)
- Type 202 Jabali height-finding radar (1 radar, 5 tons)
- SAGEM HF/DF (5 tons)
- SPR-42 Sound Projector-Receivers (10 tons)
- Roth-389 backup diesel generator set (5 tons)
- Mk42 Nevada Gunnery Computer and Battle Room facilities (10 tons)

Ships in Class:
- Angamos (CLD-16): Laid down at Talcahuano July 1940, completed August 1941.
- Iquique (CLD-17): Laid down at Talcahuano October 1940, completed November 1941.
- Punta Gruesa (CLD-18): Laid down at Talcahuano July 1941, planned for completion August 1942.
- Casma (CLD-19): Laid down at Talcahuano October 1941, completed November 1942.
- Papudo (CLD-20): Laid down at Talcahuano January 1942, completed February 1943.
- Chipana (CLD-21): Laid down at Talcahuano April 1942, completed May 1943.
- Talcahuano (CLD-22): Laid down at Talcahuano July 1942, completed July 1943.
- Abtao (CLD-23): Laid down at Talcahuano October 1942, completed October 1943.

Notes:
Some debate and confusion in the Armada de Chile about how to classify these ships. They have a heavy destroyer's gun, torpedo and ASW armament and a cruiser's machinery set and hull. They have received cruiser hull numbers but will be classified as a destroyer for officer assignments. The designations "corvette", "frigate", "esploratori", "scout cruiser", "contradestroyer", "destroyer leader", "superdestroyer" and "assault frigate" have all been discussed, with "destroyer leader" and "frigate" becoming standard use.

8

Friday, October 26th 2012, 9:39am

Voluntario-class (former Z-203), Chilean (ex-German) destroyer laid down 1924 (Rebuilt 1941)
Six of these German destroyers were acquired in late 1940. A comprehensive rebuild program began in 1941.

Displacement:
1,400 t light; 1,509 t standard; 1,680 t normal; 1,816 t full load

Dimensions: Length overall / water x beam x draught
350.07 ft / 350.07 ft x 35.10 ft x 11.81 ft (normal load)
106.70 m / 106.70 m x 10.70 m x 3.60 m

Armament:
4 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.41kg shells, 1941 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 1.57" / 40.0 mm guns (2x4 guns), 1.95lbs / 0.89kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 1.10" / 27.9 mm guns (2x4 guns), 0.67lbs / 0.30kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 289 lbs / 131 kg
Shells per gun, main battery: 450
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.79" / 20 mm 0.79" / 20 mm
2nd: 0.98" / 25 mm 0.59" / 15 mm -
3rd: 0.98" / 25 mm 0.59" / 15 mm -

- Conning tower: 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 32,055 shp / 23,913 Kw = 33.00 kts
Range 4,500nm at 15.00 kts
Bunker at max displacement = 306 tons

Complement:
130 - 170

Cost:
£0.564 million / $2.258 million

Distribution of weights at normal displacement:
Armament: 36 tons, 2.2 %
Armour: 31 tons, 1.8 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 25 tons, 1.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.4 %
Machinery: 738 tons, 43.9 %
Hull, fittings & equipment: 540 tons, 32.2 %
Fuel, ammunition & stores: 280 tons, 16.7 %
Miscellaneous weights: 55 tons, 3.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
551 lbs / 250 Kg = 8.2 x 5.1 " / 130 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 1.3 ft / 0.4 m
Roll period: 13.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.59
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.405
Length to Beam Ratio: 9.97 : 1
'Natural speed' for length: 21.63 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.67 ft / 6.30 m
- Forecastle (20 %): 14.76 ft / 4.50 m
- Mid (50 %): 14.76 ft / 4.50 m
- Quarterdeck (15 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 15.24 ft / 4.64 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 165.2 %
- Above water (accommodation/working, high = better): 93.9 %
Waterplane Area: 7,874 Square feet or 732 Square metres
Displacement factor (Displacement / loading): 81 %
Structure weight / hull surface area: 36 lbs/sq ft or 175 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.96
- Overall: 0.57
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Breakdown of Miscellaneous Weights:
- 15 tons for Colocolo launchers
- 5 tons for hydrophones
- 5 tons for depth charges (24x420-lb bombs)
- 30 tons for dradis and electronics suite

---------------------------------------------------


Voluntario-class (ex-Z-203-class), German-built Chilean Zerstorer laid down 1924
Original ship design.

Displacement:
1,496 t light; 1,554 t standard; 1,680 t normal; 1,780 t full load

Dimensions: Length overall / water x beam x draught
350.07 ft / 350.07 ft x 35.10 ft x 11.81 ft (normal load)
106.70 m / 106.70 m x 10.70 m x 3.60 m

Armament:
4 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.40kg shells, 1924 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
1 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1924 Model
Anti-aircraft gun in deck mount
on side amidships, 1 raised gun
4 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1924 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 290 lbs / 131 kg
Shells per gun, main battery: 150
10 - 19.7" / 500 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm - -
2nd: 0.98" / 25 mm - -
3rd: 0.98" / 25 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 34,364 shp / 25,636 Kw = 33.56 kts
Range 4,500nm at 12.00 kts
Bunker at max displacement = 225 tons

Complement:
130 - 170

Cost:
£0.623 million / $2.490 million

Distribution of weights at normal displacement:
Armament: 36 tons, 2.2 %
Armour: 24 tons, 1.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 24 tons, 1.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 847 tons, 50.4 %
Hull, fittings & equipment: 569 tons, 33.8 %
Fuel, ammunition & stores: 183 tons, 10.9 %
Miscellaneous weights: 20 tons, 1.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
517 lbs / 235 Kg = 7.7 x 5.1 " / 130 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.30
Metacentric height 1.7 ft / 0.5 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 48 %
- Recoil effect (Restricted arc if above 1.00): 0.44
Seaboat quality (Average = 1.00): 0.93

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.405
Length to Beam Ratio: 9.97 : 1
'Natural speed' for length: 21.63 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.67 ft / 6.30 m
- Forecastle (20 %): 14.76 ft / 4.50 m
- Mid (50 %): 14.76 ft / 4.50 m
- Quarterdeck (15 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 15.24 ft / 4.64 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 180.7 %
- Above water (accommodation/working, high = better): 86.4 %
Waterplane Area: 7,874 Square feet or 732 Square metres
Displacement factor (Displacement / loading): 65 %
Structure weight / hull surface area: 38 lbs/sq ft or 184 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.52
- Longitudinal: 2.03
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Ships in Class:
- Voluntario (DD-56) - 1924
- Peleador (DD-57) - 1924
- Caballeroso (DD-58) - 1924
- Celeste (DD-59) - 1924
- Caprichoso (DD-60) - 1924
- Feroz (DD-61) - 1924

9

Wednesday, June 26th 2013, 5:05am

Bolados class, Chilean Light Destroyer laid down 1943
These eight American-designed surface escorts (OTL Rudderow class destroyer escort) were acquired to help replace increasingly-aged secondhand destroyers, focusing on escort of coastal trade. Although they slightly exceed the tonnage specification, they are classified as Light Destroyers due to their light armament and 26 knot speed.

Displacement:
1,195 t light; 1,261 t standard; 1,445 t normal; 1,592 t full load

Dimensions: Length overall / water x beam x draught
325.39 ft / 314.96 ft x 36.42 ft x 10.50 ft (normal load)
99.18 m / 96.00 m x 11.10 m x 3.20 m

Armament:
2 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.40kg shells, 1943 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1943 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 144 lbs / 65 kg
Shells per gun, main battery: 450
3 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.59" / 15 mm 0.59" / 15 mm
2nd: 0.79" / 20 mm 0.39" / 10 mm -
3rd: 0.59" / 15 mm 0.20" / 5 mm -

- Conning tower: 1.18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 11,837 shp / 8,830 Kw = 26.00 kts
Range 5,500nm at 15.00 kts
Bunker at max displacement = 330 tons

Complement:
116 - 152

Cost:
£0.653 million / $2.611 million

Distribution of weights at normal displacement:
Armament: 18 tons, 1.2 %
Armour: 12 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 9 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 306 tons, 21.2 %
Hull, fittings & equipment: 699 tons, 48.3 %
Fuel, ammunition & stores: 250 tons, 17.3 %
Miscellaneous weights: 160 tons, 11.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,466 lbs / 1,119 Kg = 36.8 x 5.1 " / 130 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 1.4 ft / 0.4 m
Roll period: 13.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.22
Seaboat quality (Average = 1.00): 1.48

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.420
Length to Beam Ratio: 8.65 : 1
'Natural speed' for length: 20.72 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 1.00 ft / 0.30 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.92 ft / 7.90 m
- Forecastle (20 %): 19.03 ft / 5.80 m
- Mid (50 %): 11.98 ft / 3.65 m
- Quarterdeck (15 %): 11.98 ft / 3.65 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 15.08 ft / 4.60 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92.7 %
- Above water (accommodation/working, high = better): 135.9 %
Waterplane Area: 7,424 Square feet or 690 Square metres
Displacement factor (Displacement / loading): 156 %
Structure weight / hull surface area: 53 lbs/sq ft or 258 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.88
- Longitudinal: 3.43
- 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

Breakdown of Miscellaneous Weights:
- 30 tons for Suite-42a electronics
- 15 tons for hydrophones and ASDIC
- 6 tons for three reload torpedoes (3,638 lb each)
- 15 tons for Colocolo antisubmarine rocket-launched depth charges
- 12 tons for Colocolo reloads
- 10 tons for air-conditioning and heating
- 10 tons for miscellaneous radio, electronics and ECM gear
- 30 tons for crew comforts and future additions
- 32 tons for depth charges (150x420-lb bombs)
160 tons total miscellaneous weight

Electronics:
- Type 102 Cactus surface/air search dradis: 5 tons
- Type 200 Moonraker air search dradis: 5 tons
- Type 301 Boldo fire-control dradis: 5 tons
- Mk41 Nevada Gunnery Computer: 10 tons
- Roth-389 Emergency Electrical Generator Set: 5 tons
Total: 30 tons

Ships in Class:
- Bolados: Laid down at Talcahuano January 1942, completed November 1942.
- Téllez: Laid down at Talcahuano April 1942, completed February 1943.
- Bravo: Laid down at Talcahuano July 1942, completed May 1943.
- Machado: Laid down at Talcahuano October 1942, completed August 1943.
- Díaz: Laid down at Valparaiso January 1943, completed November 1943.
- Troncoso: Laid down at Valparaiso April 1943, completed February 1944.
- Litton: Laid down at Valparaiso July 1943, completed May 1944.
- Salinas: Laid down at Valparaiso October 1943, completed August 1944.

10

Tuesday, December 24th 2013, 7:26pm



Almirante Williams-class, Chilean Destroyer laid down 1944
These two ships are designed to serve as the destroyer-leaders to round out the 5th Destroyer Squadron, composed of the ex-German Voluntario-class destroyers. They may form the basis for a further Chilean destroyer class.

Displacement:
2,200 t light; 2,350 t standard; 2,665 t normal; 2,917 t full load

Dimensions: Length overall / water x beam x draught
402.37 ft / 393.70 ft x 37.73 ft x 14.44 ft (normal load)
122.64 m / 120.00 m x 11.50 m x 4.40 m

Armament:
4 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.41kg shells, 1944 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 1.10" / 27.9 mm guns (2x4 guns), 0.67lbs / 0.30kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 327 lbs / 149 kg
Shells per gun, main battery: 500
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 1.00" / 25 mm - -
3rd: 1.00" / 25 mm - -

- Conning tower: 2.00" / 51 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 2 shafts, 46,761 shp / 34,884 Kw = 34.00 kts
Range 6,500nm at 15.00 kts
Bunker at max displacement = 566 tons

Complement:
185 - 241

Cost:
£1.857 million / $7.430 million

Distribution of weights at normal displacement:
Armament: 48 tons, 1.8 %
Armour: 34 tons, 1.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 26 tons, 1.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 8 tons, 0.3 %
Machinery: 1,136 tons, 42.6 %
Hull, fittings & equipment: 822 tons, 30.8 %
Fuel, ammunition & stores: 465 tons, 17.5 %
Miscellaneous weights: 160 tons, 6.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
917 lbs / 416 Kg = 13.7 x 5.1 " / 130 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 1.5 ft / 0.5 m
Roll period: 13.0 seconds
Steadiness - As gun platform (Average = 50 %): 75 %
- Recoil effect (Restricted arc if above 1.00): 0.55
Seaboat quality (Average = 1.00): 1.33

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.435
Length to Beam Ratio: 10.43 : 1
'Natural speed' for length: 22.75 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.25 ft / 8.00 m
- Forecastle (25 %): 23.79 ft / 7.25 m
- Mid (50 %): 21.33 ft / 6.50 m (13.94 ft / 4.25 m aft of break)
- Quarterdeck (15 %): 13.94 ft / 4.25 m
- Stern: 13.94 ft / 4.25 m
- Average freeboard: 18.80 ft / 5.73 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 160.7 %
- Above water (accommodation/working, high = better): 94.1 %
Waterplane Area: 9,723 Square feet or 903 Square metres
Displacement factor (Displacement / loading): 90 %
Structure weight / hull surface area: 38 lbs/sq ft or 187 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.78
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Breakdown of Miscellaneous Weights:
- 65 tons for Suite-42a electronics
- 18 tons for eight reload torpedoes (4,410 lb each)
- 15 tons for Colocolo antisubmarine rocket-launched depth charges
- 10 tons for air-conditioning and heating
- 12 tons for depth charges (56x420-lb bombs)
- 10 tons for miscellaneous radio, electronics and ECM gear
- 30 tons for crew comforts and future additions
160 tons total miscellaneous weight

Suite-42a Electronics
- Type 102 "Cactus" surface search radars (2 radars, 15 tons)
- Type 203 "Cabrillas" air search radars (1 radar, 5 tons)
- Type 301 "Boldo" fire-control radars (1 radar, 10 tons)
- Type 202 Jabali height-finding radar (1 radar, 5 tons)
- SAGEM HF/DF (5 tons)
- SPR-42 Sound Projector-Receivers (10 tons)
- Roth-389 backup diesel generator set (5 tons)
- Mk42 Nevada Gunnery Computer and Battle Room facilities (10 tons)

Ships in Class:
- Almirante Williams (DM-62): Laid down at Talcahuano January 1944, completed December 1944.
- Almirante Riveros (DM-63): Laid down at Talcahuano January 1944, completed December 1944.

11

Wednesday, May 21st 2014, 2:49am



Aldea-class destroyer, Chilean Destroyer, laid down 1929
Former Farragut-class United States destroyer, laid down 1929

Displacement:
1,452 t light; 1,550 t standard; 1,755 t normal; 1,918 t full load

Dimensions: Length overall / water x beam x draught
338.84 ft / 334.00 ft x 34.50 ft x 13.00 ft (normal load)
103.28 m / 101.80 m x 10.52 m x 3.96 m

Armament:
4 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.40kg shells, 1945 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.89kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 284 lbs / 129 kg
Shells per gun, main battery: 385
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm 1.00" / 25 mm -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 36,137 shp / 26,958 Kw = 33.50 kts
Range 5,500nm at 15.00 kts
Bunker at max displacement = 368 tons

Complement:
135 - 176

Cost:
£0.760 million / $3.042 million

Distribution of weights at normal displacement:
Armament: 35 tons, 2.0 %
Armour: 17 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 17 tons, 0.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 782 tons, 44.6 %
Hull, fittings & equipment: 518 tons, 29.5 %
Fuel, ammunition & stores: 302 tons, 17.2 %
Miscellaneous weights: 100 tons, 5.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
568 lbs / 257 Kg = 8.5 x 5.1 " / 130 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 1.4 ft / 0.4 m
Roll period: 12.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.30
Seaboat quality (Average = 1.00): 1.06

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.410
Length to Beam Ratio: 9.68 : 1
'Natural speed' for length: 21.16 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 66
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: 22.75 ft / 6.93 m
- Forecastle (18 %): 21.00 ft / 6.40 m
- Mid (34 %): 21.00 ft / 6.40 m (13.10 ft / 3.99 m aft of break)
- Quarterdeck (18 %): 13.00 ft / 3.96 m
- Stern: 13.00 ft / 3.96 m
- Average freeboard: 15.87 ft / 4.84 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 168.0 %
- Above water (accommodation/working, high = better): 82.0 %
Waterplane Area: 7,407 Square feet or 688 Square metres
Displacement factor (Displacement / loading): 79 %
Structure weight / hull surface area: 34 lbs/sq ft or 166 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.70
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform

Breakdown of Miscellaneous Weights:
- 30 tons for Suite-42a electronics
- 15 tons for hydrophones and ASDIC
- 15 tons for Colocolo antisubmarine rocket-launched depth charges
- 19 tons for Colocolo reloads
- 21 tons for depth charges (100x420-lb bombs)
160 tons total miscellaneous weight

Electronics:
- Type 102 Cactus surface/air search dradis: 5 tons
- Type 200 Moonraker air search dradis: 5 tons
- Type 301 Boldo fire-control dradis: 5 tons
- Mk41 Nevada Gunnery Computer: 10 tons
- Roth-389 Emergency Electrical Generator Set: 5 tons
Total: 30 tons

Ships in Class:
- Teniente Aldea (DM-70), ex USS Farragut (DD-138), acquired 1944.
- Teniente Serrano (DM-71), ex USS MacDonough (DD-141), acquired 1944.
- Teniente Videla (DM-72), ex USS Aylwin (DD-145), acquired 1944.
- Teniente Requelme (DM-73), ex USS Hull (DD-140), acquired 1944.
- Teniente Ibarra (DM-74), ex USS Dale (DD-143), acquired 1944.
- Teniente de la Fuente (DM-75), ex USS Monaghan (DD-144), acquired 1944.
- Teniente Hoste (DM-76), ex USS Worden (DD-142), acquired 1944.
- Teniente Larraguibel (DM-77), ex USS Dewey (DD-139), acquired 1944.

12

Wednesday, May 21st 2014, 3:02am



Cerro Fitz Roy, German Heavy Destroyer laid down 1933 – Refitted 1942

Displacement:
2,703 t light; 2,878 t standard; 3,288 t normal; 3,616 t full load

Dimensions: Length overall / water x beam x draught
483.15 ft / 465.88 ft x 44.29 ft x 13.94 ft (normal load)
147.26 m / 142.00 m x 13.50 m x 4.25 m

Armament:
6 - 5.12" / 130 mm guns (3x2 guns), 67.03lbs / 30.40kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
4 - 2.95" / 75.0 mm guns (2x2 guns), 13.23lbs / 6.00kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on centreline, all aft, all raised mounts - superfiring
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 459 lbs / 208 kg
Shells per gun, main battery: 410
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm 0.98" / 25 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm -
3rd: 0.79" / 20 mm 0.79" / 20 mm -

- Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 2 shafts, 54,231 shp / 40,456 Kw = 35.00 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 738 tons

Complement:
216 - 282

Cost:
£1.602 million / $6.409 million

Distribution of weights at normal displacement:
Armament: 67 tons, 2.0 %
Armour: 53 tons, 1.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 40 tons, 1.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 13 tons, 0.4 %
Machinery: 1,342 tons, 40.8 %
Hull, fittings & equipment: 1,081 tons, 32.9 %
Fuel, ammunition & stores: 585 tons, 17.8 %
Miscellaneous weights: 160 tons, 4.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,383 lbs / 627 Kg = 20.6 x 5.1 " / 130 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.29
Metacentric height 2.3 ft / 0.7 m
Roll period: 12.2 seconds
Steadiness - As gun platform (Average = 50 %): 64 %
- Recoil effect (Restricted arc if above 1.00): 0.35
Seaboat quality (Average = 1.00): 1.28

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.52 : 1
'Natural speed' for length: 24.86 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27.07 ft / 8.25 m
- Forecastle (20 %): 22.15 ft / 6.75 m
- Mid (40 %): 22.15 ft / 6.75 m (15.58 ft / 4.75 m aft of break)
- Quarterdeck (15 %): 15.58 ft / 4.75 m
- Stern: 15.58 ft / 4.75 m
- Average freeboard: 18.60 ft / 5.67 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 155.0 %
- Above water (accommodation/working, high = better): 150.0 %
Waterplane Area: 13,182 Square feet or 1,225 Square metres
Displacement factor (Displacement / loading): 94 %
Structure weight / hull surface area: 45 lbs/sq ft or 218 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.53
- Longitudinal: 1.63
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

Breakdown of Miscellaneous Weights:
Not yet available

Electronics:
Not yet available

Ships in Class:
- Cerro Fitz Roy (DM-64) (ex-Lebrecht Maas)
- Nevado Ojos del Salado (DM-65) (ex-Theodor Reidel)
- Nevado Sajama (DM-66) (ex-Georg Thiele)
- Cerro Solo (DM-67) (ex-Max Schulz)
- Volcan Osorno (DM-68) (ex-Richard Beitzen)
- Torres del Paine (DM-69) (ex-Paul Jacobi)

13

Thursday, January 12th 2017, 8:25pm



Almirante Simpson, Chilean Destroyer laid down 1947

Displacement:
2,200 t light; 2,350 t standard; 2,656 t normal; 2,901 t full load

Dimensions: Length overall / water x beam x draught
402.37 ft / 393.70 ft x 37.73 ft x 14.44 ft (normal load)
122.64 m / 120.00 m x 11.50 m x 4.40 m

Armament:
4 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.41kg shells, 1947 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1947 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 1.10" / 27.9 mm guns (2x4 guns), 0.67lbs / 0.30kg shells, 1947 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 325 lbs / 147 kg
Shells per gun, main battery: 500
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.57" / 40 mm 0.79" / 20 mm 0.79" / 20 mm
2nd: 0.98" / 25 mm - -
3rd: 0.59" / 15 mm - -

- Conning tower: 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 2 shafts, 46,626 shp / 34,783 Kw = 34.00 kts
Range 6,500nm at 15.00 kts
Bunker at max displacement = 551 tons

Complement:
184 - 240

Cost:
£1.973 million / $7.890 million

Distribution of weights at normal displacement:
Armament: 47 tons, 1.8 %
Armour: 29 tons, 1.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 21 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 8 tons, 0.3 %
Machinery: 1,103 tons, 41.5 %
Hull, fittings & equipment: 821 tons, 30.9 %
Fuel, ammunition & stores: 456 tons, 17.2 %
Miscellaneous weights: 200 tons, 7.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
931 lbs / 422 Kg = 13.9 x 5.1 " / 130 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 1.4 ft / 0.4 m
Roll period: 13.2 seconds
Steadiness - As gun platform (Average = 50 %): 75 %
- Recoil effect (Restricted arc if above 1.00): 0.56
Seaboat quality (Average = 1.00): 1.34

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.434
Length to Beam Ratio: 10.43 : 1
'Natural speed' for length: 22.76 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.25 ft / 8.00 m
- Forecastle (25 %): 23.79 ft / 7.25 m
- Mid (50 %): 21.33 ft / 6.50 m (13.94 ft / 4.25 m aft of break)
- Quarterdeck (15 %): 13.94 ft / 4.25 m
- Stern: 13.94 ft / 4.25 m
- Average freeboard: 18.80 ft / 5.73 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 158.7 %
- Above water (accommodation/working, high = better): 110.8 %
Waterplane Area: 9,712 Square feet or 902 Square metres
Displacement factor (Displacement / loading): 91 %
Structure weight / hull surface area: 38 lbs/sq ft or 187 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.81
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Breakdown of Miscellaneous Weights:
- 67 tons for Electronics (see below)
- 18 tons for eight reload torpedoes (4,410 lb each)
- 15 tons for Colocolo antisubmarine rocket-launched depth charges
- 20 tons for Colocolo reloads
- 20 tons for air-conditioning
- 60 tons for additional 130mm gun automation equipment (15t per gun)
200 tons total miscellaneous weight

Electronics:
- SAGEM DRBV-11 Moselle PA search radar (1 radar, 15 tons)
- Sisdef Type 104.1 "Cactus/5" sentry radar (1 radar, 10 tons)
- Sisdef Type 301.3.2 "Boldo" fire-control radars (2 radars, 10 tons)
- Sisdef Type 103.1 "Nalca" navigational surface and air search radar (1 radar, 2 tons)
- SAGEM HF/DF (5 tons)
- Sisdef SPR-48P Passive (Rochelle Salt) Hydrophones (2 primary, 2 secondary, 10 tons)
- Sisdef SPR-46A Active Hydrophones (1 primary, 5 tons)
- Sisdef SPR-48A Active Hydrophones (2 primary, 2 secondary, 5 tons)
- M47 Gunnery Computer and Battle Room facilities (10 tons)

Ships in Class:
- Almirante Simpson (DM-78): Laid down January 1947, completed December 1947.
- Almirante Goni (DM-79): Laid down January 1947, completed December 1947.
- Almirante Lynch (DM-80): Laid down July 1947, completed June 1948.
- Almirante Condell (DM-81): Laid down July 1947, completed June 1948.
- Capitan Orella (DM-82): Laid down January 1948, completed December 1948.
- Capitan Merino Jarpa (DM-83): Laid down January 1948, completed December 1948.
- Capitan Munoz Gamero (DM-84): Laid down July 1948, completed June 1949.
- Capitan Martinez (DM-85): Laid down July 1948, completed June 1949.

14

Thursday, January 24th 2019, 4:57pm

Chacabuco-class Destroyers

Chacabuco, Chilean Destroyer laid down 1948

Displacement:
2,700 t light; 2,886 t standard; 3,286 t normal; 3,606 t full load

Dimensions: Length overall / water x beam x draught
483.15 ft / 465.88 ft x 44.29 ft x 13.94 ft (normal load)
147.26 m / 142.00 m x 13.50 m x 4.25 m

Armament:
6 - 5.12" / 130 mm guns (3x2 guns), 67.03lbs / 30.41kg shells, 1940 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
4 - 2.95" / 75.0 mm guns (2x2 guns), 13.23lbs / 6.00kg shells, 1948 Model
Anti-aircraft guns in deck mounts
on centreline, all aft, all raised mounts - superfiring
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1948 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 459 lbs / 208 kg
Shells per gun, main battery: 450
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.57" / 40 mm 0.79" / 20 mm 0.98" / 25 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm -
3rd: 0.79" / 20 mm 0.79" / 20 mm -

- Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 2 shafts, 54,210 shp / 40,441 Kw = 35.00 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 720 tons

Complement:
216 - 282

Cost:
£2.487 million / $9.949 million

Distribution of weights at normal displacement:
Armament: 67 tons, 2.0 %
Armour: 47 tons, 1.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 34 tons, 1.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 13 tons, 0.4 %
Machinery: 1,305 tons, 39.7 %
Hull, fittings & equipment: 1,081 tons, 32.9 %
Fuel, ammunition & stores: 586 tons, 17.8 %
Miscellaneous weights: 200 tons, 6.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,385 lbs / 628 Kg = 20.7 x 5.1 " / 130 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.23
Metacentric height 2.1 ft / 0.7 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.38
Seaboat quality (Average = 1.00): 1.28

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.52 : 1
'Natural speed' for length: 24.86 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27.07 ft / 8.25 m
- Forecastle (20 %): 22.15 ft / 6.75 m
- Mid (40 %): 22.15 ft / 6.75 m (15.58 ft / 4.75 m aft of break)
- Quarterdeck (15 %): 15.58 ft / 4.75 m
- Stern: 15.58 ft / 4.75 m
- Average freeboard: 18.60 ft / 5.67 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 153.2 %
- Above water (accommodation/working, high = better): 149.9 %
Waterplane Area: 13,180 Square feet or 1,224 Square metres
Displacement factor (Displacement / loading): 96 %
Structure weight / hull surface area: 45 lbs/sq ft or 218 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.53
- Longitudinal: 1.64
- Overall: 0.59
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

Breakdown of Miscellaneous Weights:
- 67 tons for Electronics (see below)
- 18 tons for eight reload torpedoes (4,410 lb each)
- 15 tons for Colocolo antisubmarine rocket-launched depth charges
- 20 tons for Colocolo reloads
- 20 tons for air-conditioning
- 60 tons for additional 130mm gun automation equipment (10t per gun)
200 tons total miscellaneous weight

Electronics:
Same as Cerro Fitz Roy and Almirante Simpson-class.

Ships in Class:
- Chacabuco (DM-86)
- Maipú (DM-87)