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Brockpaine

The Shadow

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21

Monday, January 9th 2012, 6:34pm

Guardia Marina Contrerra-class, Chilean Destroyer laid down 1927
Sim by Ithekro

These two ships were deemed surplus to requirements and sunk in live-weapons trials in 1940 and 1941.

Displacement:
850 t light; 897 t standard; 965 t normal; 1,015 t full load

Dimensions: Length overall / water x beam x draught
300.00 ft / 289.00 ft x 29.00 ft x 10.00 ft (normal load)
91.44 m / 88.09 m x 8.84 m x 3.05 m

Armament:
3 - 4.33" / 110 mm guns in single mounts, 40.59lbs / 18.41kg shells, 1927 Model
Quick firing guns in deck mounts
on centreline ends, majority forward, 1 raised mount
4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1927 Model
Dual purpose guns in deck mounts
on side, evenly spread
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1927 Model
Anti-aircraft guns in deck mount
on centreline
6 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1927 Model
Machine guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 179 lbs / 81 kg
Shells per gun, main battery: 250
2 - 21.0" / 533.4 mm above water torpedoes

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 27,500 shp / 20,515 Kw = 32.27 kts
Range 5,000nm at 10.00 kts (Bunkerage = 122 tons)

Complement:
86 - 112

Cost:
£0.431 million / $1.723 million

Distribution of weights at normal displacement:
Armament: 22 tons, 2.3 %
Machinery: 499 tons, 51.7 %
Hull, fittings & equipment: 329 tons, 34.0 %
Fuel, ammunition & stores: 115 tons, 11.9 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
276 lbs / 125 Kg = 6.8 x 4.3 " / 110 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 1.2 ft / 0.4 m
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, low quarterdeck
Block coefficient: 0.403
Length to Beam Ratio: 9.97 : 1
'Natural speed' for length: 17.00 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 66
Bow angle (Positive = bow angles forward): 24.63 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (20 %): 18.00 ft / 5.49 m
- Mid (50 %): 17.00 ft / 5.18 m (10.00 ft / 3.05 m aft of break)
- Quarterdeck (15 %): 7.00 ft / 2.13 m (10.00 ft / 3.05 m before break)
- Stern: 7.00 ft / 2.13 m
- Average freeboard: 13.88 ft / 4.23 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 186.1 %
- Above water (accommodation/working, high = better): 121.8 %
Waterplane Area: 4,889 Square feet or 454 Square metres
Displacement factor (Displacement / loading): 50 %
Structure weight / hull surface area: 30 lbs/sq ft or 145 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 3.09
- Overall: 0.60
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:
N/A

Ships in Class:
- Guardia Marina Contrerra (DL-5) - 1927
- Guardia Marina Gonzales (DL-6) - 1929

Brockpaine

The Shadow

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22

Wednesday, February 1st 2012, 4:12pm

Maunga Terevaka-class Light Cruiser


Image by thesmilingassassin and colored by Brockpaine

Maunga Terevaka, Chilean Protected Cruiser laid down 1925
Sim by Ithekro (?)

Displacement:
6,743 t light; 6,964 t standard; 7,455 t normal; 7,818 t full load

Dimensions: Length overall / water x beam x draught
490.00 ft / 480.00 ft x 60.00 ft x 21.00 ft (normal load)
149.35 m / 146.30 m x 18.29 m x 6.40 m

Armament:
8 - 5.91" / 150 mm guns (4x2 guns), 102.69lbs / 46.58kg shells, 1925 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 1.46" / 37.0 mm guns (8x2 guns), 1.55lbs / 0.70kg shells, 1925 Model
Anti-aircraft guns in deck mounts
on side, all amidships
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1925 Model
Machine guns in deck mounts
on side, all forward, all raised mounts - superfiring
Weight of broadside 847 lbs / 384 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 419.00 ft / 127.71 m 7.00 ft / 2.13 m
Ends: 2.00" / 51 mm 61.00 ft / 18.59 m 4.00 ft / 1.22 m
Main Belt covers 134 % of normal length

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

- Armour deck: 1.50" / 38 mm, Conning tower: 4.00" / 102 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 79,745 shp / 59,490 Kw = 32.25 kts
Range 7,000nm at 12.00 kts (Bunkerage = 884 tons)

Complement:
400 - 521

Cost:
£2.250 million / $8.998 million

Distribution of weights at normal displacement:
Armament: 106 tons, 1.4 %
Armour: 910 tons, 12.2 %
- Belts: 369 tons, 5.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 30 tons, 0.4 %
- Armour Deck: 477 tons, 6.4 %
- Conning Tower: 33 tons, 0.4 %
Machinery: 2,589 tons, 34.7 %
Hull, fittings & equipment: 3,138 tons, 42.1 %
Fuel, ammunition & stores: 712 tons, 9.6 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6,230 lbs / 2,826 Kg = 60.7 x 5.9 " / 150 mm shells or 1.1 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 3.2 ft / 1.0 m
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.26
Seaboat quality (Average = 1.00): 1.12

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.431
Length to Beam Ratio: 8.00 : 1
'Natural speed' for length: 21.91 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 11.69 degrees
Stern overhang: 4.00 ft / 1.22 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.00 ft / 8.84 m
- Forecastle (20 %): 22.00 ft / 6.71 m
- Mid (50 %): 20.00 ft / 6.10 m
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 21.26 ft / 6.48 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 123.7 %
- Above water (accommodation/working, high = better): 143.5 %
Waterplane Area: 17,196 Square feet or 1,598 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 103 lbs/sq ft or 501 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 2.80
- Overall: 1.10
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:
N/A

Ships in Class:
- Maunga Terevaka (PC-5/CL-5) - 1925. Sold to the Philippines 1941.

Brockpaine

The Shadow

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23

Wednesday, February 1st 2012, 4:13pm

Capitan Orella-class Escort Destroyer


Image by thesmilingassassin and modified by me (Brockpaine)

Capitan Orella-class (Alphabet-B Destroyer), Atlantean-built Chilean Destroyer laid down 1917 (Engine 1936)
Original Alphabet-B sim by thesmilingassassin; Orella refit sim by Brockpaine.

Sold to the Philippines, Q1/1941.

Displacement:
1,181 t light; 1,233 t standard; 1,390 t normal; 1,516 t full load

Dimensions: Length overall / water x beam x draught
330.63 ft / 325.00 ft x 32.00 ft x 11.00 ft (normal load)
100.78 m / 99.06 m x 9.75 m x 3.35 m

Armament:
4 - 4.33" / 110 mm guns in single mounts, 40.61lbs / 18.42kg shells, 1936 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
2 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1917 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1917 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 168 lbs / 76 kg
Shells per gun, main battery: 250
5 - 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

- Conning tower: 1.57" / 40 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 31,558 shp / 23,542 Kw = 32.00 kts
Range 7,000nm at 12.00 kts
Bunker at max displacement = 283 tons

Complement:
113 - 147

Cost:
£0.282 million / $1.126 million

Distribution of weights at normal displacement:
Armament: 21 tons, 1.5 %
Armour: 19 tons, 1.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 14 tons, 1.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 4 tons, 0.3 %
Machinery: 685 tons, 49.3 %
Hull, fittings & equipment: 430 tons, 30.9 %
Fuel, ammunition & stores: 209 tons, 15.0 %
Miscellaneous weights: 27 tons, 1.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
380 lbs / 172 Kg = 9.3 x 4.3 " / 110 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 1.1 ft / 0.3 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 79 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.425
Length to Beam Ratio: 10.16 : 1
'Natural speed' for length: 18.03 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 73
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (30 %): 20.00 ft / 6.10 m
- Mid (40 %): 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: 14.72 ft / 4.49 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 173.5 %
- Above water (accommodation/working, high = better): 92.7 %
Waterplane Area: 6,508 Square feet or 605 Square metres
Displacement factor (Displacement / loading): 70 %
Structure weight / hull surface area: 32 lbs/sq ft or 155 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.19
- 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

Breakdown of Miscellaneous Weights:
- 14 tons for 56 depth charges
- 9 tons for sonar
- 4 tons for anti sub equipment

Ships in Class:
- Capitan Orella (DDE-01) - 1917/1936
- Capitan Duran (DDE-02) - 1917/1936
- Capitan Godoy (DDE-03) - 1917/1936
- Capitan Munoz Gamero (DDE-04) - 1917/1936
- Capitan Sandoval (DDE-05)- 1917/1936
- Capitan Monk (DDE-06) - 1917/1936
- Capitan Merino Jarpa (DDE-07) - 1917/1936
- Capitan Pinto (DDE-08) - 1917/1936

Brockpaine

The Shadow

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24

Friday, February 17th 2012, 10:44pm

Nevado Ojos del Salado-class Heavy Cruiser


Image by thesmilingassassin, colored by Brockpaine

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

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

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

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

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

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

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

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

Complement:
533 - 694

Cost:
£3.304 million / $13.218 million

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

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

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.482
Length to Beam Ratio: 8.61 : 1
'Natural speed' for length: 23.47 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.00 ft / 8.53 m
- Forecastle (25 %): 27.50 ft / 8.38 m (26.00 ft / 7.92 m aft of break)
- Mid (45 %): 26.00 ft / 7.92 m
- Quarterdeck (18 %): 18.00 ft / 5.49 m
- Stern: 18.00 ft / 5.49 m
- Average freeboard: 23.51 ft / 7.16 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 94.4 %
- Above water (accommodation/working, high = better): 148.0 %
Waterplane Area: 23,118 Square feet or 2,148 Square metres
Displacement factor (Displacement / loading): 116 %
Structure weight / hull surface area: 128 lbs/sq ft or 625 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 2.68
- Overall: 1.10
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Breakdown of Miscellaneous Weights
N/A

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

Brockpaine

The Shadow

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25

Wednesday, September 5th 2012, 8:05pm



Praia-class, Atlantean-built Chilean Floatplane Carrier laid down 1918

Displacement:
4,020 t light; 4,118 t standard; 4,466 t normal; 4,745 t full load

Dimensions: Length overall / water x beam x draught
369.27 ft / 365.00 ft x 46.00 ft x 14.00 ft (normal load)
112.55 m / 111.25 m x 14.02 m x 4.27 m

Armament:
2 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1918 Model
Breech loading guns in deck mounts with hoists
on centreline, all amidships
2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, all aft
8 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 95 lbs / 43 kg
Shells per gun, main battery: 140

Aircraft:
8 Latecoere L.298 Seaplane Torpedo Bombers/Scouts

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 13,997 shp / 10,442 Kw = 21.50 kts
Range 9,000nm at 10.00 kts
Bunker at max displacement = 627 tons

Complement:
273 - 355

Cost:
£0.443 million / $1.771 million

Distribution of weights at normal displacement:
Armament: 12 tons, 0.3 %
Machinery: 505 tons, 11.3 %
Hull, fittings & equipment: 2,103 tons, 47.1 %
Fuel, ammunition & stores: 446 tons, 10.0 %
Miscellaneous weights: 1,400 tons, 31.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,649 lbs / 3,469 Kg = 239.0 x 4.0 " / 102 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.01
Metacentric height 1.6 ft / 0.5 m
Roll period: 15.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.665
Length to Beam Ratio: 7.93 : 1
'Natural speed' for length: 19.10 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.00 ft / 7.92 m
- Forecastle (20 %): 25.00 ft / 7.62 m (18.00 ft / 5.49 m aft of break)
- Mid (0 %): 18.00 ft / 5.49 m
- Quarterdeck (15 %): 18.00 ft / 5.49 m
- Stern: 18.00 ft / 5.49 m
- Average freeboard: 19.48 ft / 5.94 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 73.6 %
- Above water (accommodation/working, high = better): 163.8 %
Waterplane Area: 13,040 Square feet or 1,211 Square metres
Displacement factor (Displacement / loading): 178 %
Structure weight / hull surface area: 92 lbs/sq ft or 451 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.37
- Longitudinal: 4.50
- Overall: 1.55
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of Weights:
N/A

Ships in Class:
- Michimalonco (CLV-2) - 1918 (acquired 1926, ex-Praia) - Scrapped
- Capitan Litton (CLV-03) - 1918 (acquired 1926, ex-Lautaro, ex-Mindelo) - Scrapped

Brockpaine

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26

Wednesday, December 26th 2012, 10:06pm


Image by wes/thesmilingassassin and heavily modified by me.

Capitan Oyama-class, Chilean Armoured Cruiser laid down 1930/1933

Displacement:
22,745 t light; 23,671 t standard; 27,000 t normal; 29,555 t full load

Dimensions: Length overall / water x beam x draught
738.00 ft / 720.00 ft x 92.00 ft x 29.00 ft (normal load)
224.94 m / 219.46 m x 28.04 m x 8.84 m

Armament:
9 - 10.00" / 254 mm guns (3x3 guns), 500.00lbs / 226.80kg shells, 1930 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
20 - 4.33" / 110 mm guns (10x2 guns), 40.61lbs / 18.42kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, 4 raised mounts - superfiring
24 - 1.46" / 37.0 mm guns (12x2 guns), 1.55lbs / 0.70kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 6 raised mounts
Weight of broadside 5,349 lbs / 2,426 kg
Shells per gun, main battery: 125

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 8.50" / 216 mm 470.00 ft / 143.26 m 12.00 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 100 % of normal length

- Torpedo Bulkhead:
1.00" / 25 mm 470.00 ft / 143.26 m 26.00 ft / 7.92 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.50" / 216 mm 4.13" / 105 mm 8.00" / 203 mm
2nd: 4.13" / 105 mm 4.13" / 105 mm 4.00" / 102 mm
3rd: 0.25" / 6 mm - -

- Armour deck: 4.00" / 102 mm, Conning tower: 8.50" / 216 mm

Machinery:
Oil fired boilers, steam turbines,
Electric cruising motors plus geared drives, 3 shafts, 150,000 shp / 111,900 Kw = 33.41 kts
Range 8,000nm at 20.00 kts (Bunkerage = 5,991 tons)

Complement:
1,053 - 1,369

Cost:
£8.339 million / $33.356 million

Distribution of weights at normal displacement:
Armament: 669 tons, 2.5 %
Armour: 7,382 tons, 27.3 %
- Belts: 2,038 tons, 7.5 %
- Torpedo bulkhead: 452 tons, 1.7 %
- Armament: 1,356 tons, 5.0 %
- Armour Deck: 3,371 tons, 12.5 %
- Conning Tower: 165 tons, 0.6 %
Machinery: 4,545 tons, 16.8 %
Hull, fittings & equipment: 10,074 tons, 37.3 %
Fuel, ammunition & stores: 4,255 tons, 15.8 %
Miscellaneous weights: 75 tons, 0.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
31,655 lbs / 14,359 Kg = 63.3 x 10.0 " / 254 mm shells or 4.0 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 5.3 ft / 1.6 m
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.39
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.492
Length to Beam Ratio: 7.83 : 1
'Natural speed' for length: 31.27 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 65
Bow angle (Positive = bow angles forward): 25.82 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.00 ft / 9.45 m
- Forecastle (20 %): 25.00 ft / 7.62 m
- Mid (50 %): 24.00 ft / 7.32 m
- Quarterdeck (15 %): 21.00 ft / 6.40 m
- Stern: 21.00 ft / 6.40 m
- Average freeboard: 23.86 ft / 7.27 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 95.2 %
- Above water (accommodation/working, high = better): 193.0 %
Waterplane Area: 45,554 Square feet or 4,232 Square metres
Displacement factor (Displacement / loading): 123 %
Structure weight / hull surface area: 152 lbs/sq ft or 744 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.46
- 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

Breakdown of Miscellaneous Weights:
N/A

Ships in Class:
- Capitan Oyama (AC-4) - 1930 (Sold to Colombia)
- General O'Higgins (AC-5) - 1933 (Sold to Colombia)

Brockpaine

The Shadow

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27

Saturday, March 29th 2014, 9:00pm

SC-1-type, Chilean sub chaser/patrol vessel laid down 1923 (Atlantis built)
Scrapped 1944

Displacement:
111 t light; 115 t standard; 122 t normal; 128 t full load
Loading submergence 33 tons/feet

Dimensions:
110.00 ft x 15.00 ft x 4.50 ft (normal load)
33.53 m x 4.57 m x 1.37 m

Armament:
1 - 3.00" / 76 mm gun
2 - 1.57" / 40 mm AA guns
4 - 1.00" / 25 mm guns
Weight of broadside 19 lbs / 9 kg

Armour:
Main gun shield 1.00" / 25 mm

Machinery:
Petrol Internal combustion motors,
Direct drive, 1 shaft, 1,254 shp / 936 Kw = 18.00 kts
Range 1,000nm at 12.00 kts

Complement:
18 - 23

Cost:
£0.034 million / $0.137 million

Distribution of weights at normal displacement:
Armament: 2 tons, 2.0 %
Armour: 1 tons, 0.5 %
Belts: 0 tons, 0.0 %, Armament: 1 tons, 0.5 %, Armour Deck: 0 tons, 0.0 %
Conning Tower: 0 tons, 0.0 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 42 tons, 34.3 %
Hull, fittings & equipment: 56 tons, 45.6 %
Fuel, ammunition & stores: 12 tons, 9.4 %
Miscellaneous weights: 10 tons, 8.2 %

Metacentric height 0.3

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is cramped
Caution: Lacks seaworthiness - very limited seakeeping ability

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.04
Shellfire needed to sink: 93 lbs / 42 Kg = 6.9 x 3.0 " / 76 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.2
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 42 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.23
Relative quality as seaboat: 0.59

Hull form characteristics:
Block coefficient: 0.577
Sharpness coefficient: 0.39
Hull speed coefficient 'M': 6.77
'Natural speed' for length: 10.49 kts
Power going to wave formation at top speed: 72 %
Trim: 60
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 135.0 %
Relative accommodation and working space: 78.5 %
(Average = 100%)
Displacement factor: 107 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.05
(Structure weight / hull surface area: 29 lbs / square foot or 140 Kg / square metre)
Relative longitudinal hull strength: 3.63
(for 6.50 ft / 1.98 m average freeboard, freeboard adjustment 0.22 ft)
Relative composite hull strength: 1.19

Ships in Class:
- SC-1 (SC-1) - 1923
- SC-2 (SC-2) - 1923
- SC-3 (SC-3) - 1923
- SC-4 (SC-4) - 1923
- SC-5 (SC-5) - 1923
- SC-6 (SC-6) - 1923
- SC-7 (SC-7) - 1923
- SC-8 (SC-8) - 1923
- SC-9 (SC-9) - 1923
- SC-10 (SC-10) - 1923
- SC-11 (SC-11) - 1923
- SC-12 (SC-12) - 1923

Brockpaine

The Shadow

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28

Friday, May 22nd 2015, 3:52pm

These two vessels were retired in the mid-1940s and scrapped in France.

Quoted



Astraea and Antrim, Atlantean Light Cruiser laid down 1915

Displacement:
7,251 t light; 7,479 t standard; 8,015 t normal; 8,444 t full load

Dimensions: Length overall / water x beam x draught
578.88 ft / 575.00 ft x 56.00 ft x 18.00 ft (normal load)
176.44 m / 175.26 m x 17.07 m x 5.49 m

Armament:
4 - 5.50" / 140 mm guns in single mounts, 83.19lbs / 37.73kg shells, 1915 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread, 1 raised mount
4 - 5.50" / 140 mm guns in single mounts, 83.19lbs / 37.73kg shells, 1915 Model
Breech loading guns in deck mounts
on side, all amidships
4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1915 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
8 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1915 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 724 lbs / 328 kg
Shells per gun, main battery: 150
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 410.00 ft / 124.97 m 12.00 ft / 3.66 m
Ends: 1.50" / 38 mm 160.00 ft / 48.77 m 8.00 ft / 2.44 m
5.00 ft / 1.52 m Unarmoured ends
Upper: 0.78" / 20 mm 200.00 ft / 60.96 m 0.00 ft / 0.00 m
Main Belt covers 110 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.57" / 40 mm - -

- Armour deck: 1.18" / 30 mm, Conning tower: 5.90" / 150 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 64,871 shp / 48,394 Kw = 31.00 kts
Range 5,600nm at 12.00 kts
Bunker at max displacement = 965 tons

Complement:
423 - 550

Cost:
£0.980 million / $3.920 million

Distribution of weights at normal displacement:
Armament: 90 tons, 1.1 %
Armour: 1,238 tons, 15.4 %
- Belts: 705 tons, 8.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 20 tons, 0.2 %
- Armour Deck: 462 tons, 5.8 %
- Conning Tower: 51 tons, 0.6 %
Machinery: 2,457 tons, 30.7 %
Hull, fittings & equipment: 3,416 tons, 42.6 %
Fuel, ammunition & stores: 764 tons, 9.5 %
Miscellaneous weights: 50 tons, 0.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,625 lbs / 3,912 Kg = 103.7 x 5.5 " / 140 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 3.2 ft / 1.0 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.10
Seaboat quality (Average = 1.00): 1.10

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.484
Length to Beam Ratio: 10.27 : 1
'Natural speed' for length: 23.98 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 64
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: 22.00 ft / 6.71 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (65 %): 20.00 ft / 6.10 m (10.00 ft / 3.05 m aft of break)
- Quarterdeck (15 %): 10.00 ft / 3.05 m
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 16.66 ft / 5.08 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 109.2 %
- Above water (accommodation/working, high = better): 133.6 %
Waterplane Area: 21,147 Square feet or 1,965 Square metres
Displacement factor (Displacement / loading): 116 %
Structure weight / hull surface area: 104 lbs/sq ft or 508 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.25
- Longitudinal: 1.28
- Overall: 1.25
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

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




Astraea-class, Atlantean/Chilean Light Antiaircraft Cruiser laid down 1915, Rebuilt 1937

Displacement:
6,961 t light; 7,374 t standard; 8,015 t normal; 8,528 t full load

Dimensions: Length overall / water x beam x raught
579.23 ft / 575.00 ft x 56.00 ft x 18.00 ft (normal load)
176.55 m / 175.26 m x 17.07 m x 5.49 m

Armament:
8 - 5.12" / 130 mm guns (4x2 guns), 67.03lbs / 30.40kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 5.12" / 130 mm guns (4x2 guns), 67.03lbs / 30.40kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.24lbs / 0.11kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 1,094 lbs / 496 kg
Shells per gun, main battery: 375
12 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 430.00 ft / 131.06 m 12.00 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 115 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.57" / 40 mm 0.79" / 20 mm 1.18" / 30 mm
2nd: 1.57" / 40 mm 0.79" / 20 mm 1.18" / 30 mm
3rd: 0.59" / 15 mm - -
4th: 0.59" / 15 mm - -

- Armour deck: 1.18" / 30 mm, Conning tower: 5.91" / 150 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 83,485 shp / 62,280 Kw = 33.00 kts
Range 5,950nm at 15.00 kts
Bunker at max displacement = 1,153 tons

Complement:
423 - 550

Cost:
£0.993 million / $3.971 million

Distribution of weights at normal displacement:
Armament: 137 tons, 1.7 %
Armour: 1,237 tons, 15.4 %
- Belts: 661 tons, 8.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 64 tons, 0.8 %
- Armour Deck: 462 tons, 5.8 %
- Conning Tower: 51 tons, 0.6 %
Machinery: 2,314 tons, 28.9 %
Hull, fittings & equipment: 3,173 tons, 39.6 %
Fuel, ammunition & stores: 1,054 tons, 13.2 %
Miscellaneous weights: 100 tons, 1.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,381 lbs / 3,802 Kg = 125.0 x 5.1 " / 130 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 2.7 ft / 0.8 m
Roll period: 14.4 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.39
Seaboat quality (Average = 1.00): 1.04

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.484
Length to Beam Ratio: 10.27 : 1
'Natural speed' for length: 23.98 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (20 %): 21.00 ft / 6.40 m
- Mid (65 %): 21.00 ft / 6.40 m (13.00 ft / 3.96 m aft of break)
- Quarterdeck (15 %): 13.00 ft / 3.96 m
- Stern: 13.00 ft / 3.96 m
- Average freeboard: 18.44 ft / 5.62 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 110.6 %
- Above water (accommodation/working, high = better): 131.2 %
Waterplane Area: 21,147 Square feet or 1,965 Square metres
Displacement factor (Displacement / loading): 114 %
Structure weight / hull surface area: 94 lbs/sq ft or 459 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.27
- 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

Breakdown of Excess Weights:
Air search radar - 20 tons
Surface search radar - 20 tons
Extra AA ammo - 20 tons
Air conditioning/Heating - 5 tons
Torpedo reloads - 30 tons
Crew comforts - 5 tons

Electronics:
- 1x YPSBM (Atlantean) Surface Search Y-Range. Designation name "Mainsail."
- 1x YPTBM (Atlantean) Air Search Y-Range. Designation name "Moonraker."

Ships in Class:
- Astraea (CL-10) - 1915/1937
- Tierra del Fuego (CL-11) - 1915/1937

Brockpaine

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29

Thursday, January 12th 2017, 9:20pm

Quoted

Alphabet Destroyer C-class, Atlantean-built Chilean Destroyer laid down 1917 (Engine 1938)
Rebuilt as Destroyer-Escort+Minesweeper in 1938

Displacement:
1,195 t light; 1,244 t standard; 1,389 t normal; 1,505 t full load

Dimensions: Length overall / water x beam x draught
330.63 ft / 325.00 ft x 32.00 ft x 11.00 ft (normal load)
100.78 m / 99.06 m x 9.75 m x 3.35 m

Armament:
3 - 4.33" / 110 mm guns in single mounts, 40.61lbs / 18.42kg shells, 1938 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount
2 - 1.57" / 40.0 mm guns (1x2 guns), 1.95lbs / 0.88kg shells, 1938 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
4 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1917 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 127 lbs / 57 kg
Shells per gun, main battery: 300
4 - 21.0" / 533.4 mm above water torpedoes

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 36,005 shp / 26,860 Kw = 33.00 kts
Range 5,000nm at 13.50 kts
Bunker at max displacement = 261 tons

Complement:
113 - 147

Cost:
£0.284 million / $1.135 million

Distribution of weights at normal displacement:
Armament: 16 tons, 1.1 %
Machinery: 721 tons, 51.9 %
Hull, fittings & equipment: 413 tons, 29.7 %
Fuel, ammunition & stores: 195 tons, 14.0 %
Miscellaneous weights: 45 tons, 3.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
352 lbs / 160 Kg = 8.7 x 4.3 " / 110 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 1.3 ft / 0.4 m
Roll period: 12.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.27
Seaboat quality (Average = 1.00): 0.95

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.425
Length to Beam Ratio: 10.16 : 1
'Natural speed' for length: 18.03 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 74
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (30 %): 20.00 ft / 6.10 m
- Mid (40 %): 20.00 ft / 6.10 m (10.00 ft / 3.05 m aft of break)
- Quarterdeck (15 %): 10.00 ft / 3.05 m
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 14.12 ft / 4.30 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 180.6 %
- Above water (accommodation/working, high = better): 95.3 %
Waterplane Area: 6,507 Square feet or 605 Square metres
Displacement factor (Displacement / loading): 65 %
Structure weight / hull surface area: 32 lbs/sq ft or 155 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.51
- Longitudinal: 2.01
- 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 electronics
- 5 tons for hydrophones
- 15 tons for depth charges (70x420-lb bombs) or mines (16x2000-lb mines)

Ships in Class:
- Teniente Aldea (DDE-09)
- Teniente Serrano (DDE-10)
- Teniente Videla (DDE-11)
- Teniente Requelme (DDE-12)
- Teniente Ibarra (DDE-13)
- Teniente de la Fuente (DDE-14)
- Teniente Hoste (DDE-15)
- Teniente Larraguibel (DDE-16)

Notes:
These ships are acquired for use as antisubmarine escorts and anti-air protection, and so their relatively light firepower is not as concerning as it otherwise might be. They were decommissioned in early 1945 to clear their names for the refitted Farragut-class destroyers.


Quoted

Alphabet Destroyer D-class, Atlantean-built Chilean Destroyer laid down 1917 (Engine 1938)
Rebuilt as Destroyer-Escort+Minesweeper in 1939

Displacement:
1,195 t light; 1,244 t standard; 1,389 t normal; 1,505 t full load

Dimensions: Length overall / water x beam x draught
330.63 ft / 325.00 ft x 32.00 ft x 11.00 ft (normal load)
100.78 m / 99.06 m x 9.75 m x 3.35 m

Armament:
3 - 4.33" / 110 mm guns in single mounts, 40.61lbs / 18.42kg shells, 1938 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount
2 - 1.57" / 40.0 mm guns (1x2 guns), 1.95lbs / 0.88kg shells, 1938 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
4 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1917 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 127 lbs / 57 kg
Shells per gun, main battery: 300
4 - 21.0" / 533.4 mm above water torpedoes

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 36,005 shp / 26,860 Kw = 33.00 kts
Range 5,000nm at 13.50 kts
Bunker at max displacement = 261 tons

Complement:
113 - 147

Cost:
£0.284 million / $1.135 million

Distribution of weights at normal displacement:
Armament: 16 tons, 1.1 %
Machinery: 721 tons, 51.9 %
Hull, fittings & equipment: 413 tons, 29.7 %
Fuel, ammunition & stores: 195 tons, 14.0 %
Miscellaneous weights: 45 tons, 3.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
352 lbs / 160 Kg = 8.7 x 4.3 " / 110 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 1.3 ft / 0.4 m
Roll period: 12.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.27
Seaboat quality (Average = 1.00): 0.95

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.425
Length to Beam Ratio: 10.16 : 1
'Natural speed' for length: 18.03 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 74
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (30 %): 20.00 ft / 6.10 m
- Mid (40 %): 20.00 ft / 6.10 m (10.00 ft / 3.05 m aft of break)
- Quarterdeck (15 %): 10.00 ft / 3.05 m
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 14.12 ft / 4.30 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 180.6 %
- Above water (accommodation/working, high = better): 95.3 %
Waterplane Area: 6,507 Square feet or 605 Square metres
Displacement factor (Displacement / loading): 65 %
Structure weight / hull surface area: 32 lbs/sq ft or 155 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.51
- Longitudinal: 2.01
- 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 electronics
- 5 tons for hydrophones
- 15 tons for depth charges (70x420-lb bombs) or mines (16x2000-lb mines)

Ships in Class:
- Teniente Villaroel (DDE-17)
- Teniente Don Francisco (DDE-18)
- Teniente Livingstone (DDE-19)
- Teniente Lafourcade (DDE-20)
- Teniente Huneeus (DDE-21)
- Teniente Toesca (DDE-22)
- Teniente Cabrillo (DDE-23)
- Teniente Don Diego (DDE-24)

Notes:
Alphabet destroyers built to repeat Aldea-class specifications. These ships are acquired for use as antisubmarine escorts and anti-air protection, and so their relatively light firepower is not as concerning as it otherwise might be.


All ships were retired and scrapped by the end of Q1/1947.

Brockpaine

The Shadow

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30

Tuesday, January 17th 2017, 4:57pm

Mapuche, Chilean Light Carrier laid down 1926 (Engine 1927) (Atlantean/Chilean design)

Displacement:
12,103 t light; 12,447 t standard; 13,651 t normal; 14,615 t full load

Dimensions: Length overall / water x beam x draught
556.95 ft / 551.00 ft x 64.00 ft (Bulges 75.00 ft) x 24.60 ft (normal load)
169.76 m / 167.94 m x 19.51 m (Bulges 22.86 m) x 7.50 m

Armament:
4 - 4.33" / 110 mm guns (2x2 guns), 40.59lbs / 18.41kg shells, 1926 Model
Dual purpose guns in deck mounts with hoists
on centreline, evenly spread, all raised mounts
6 - 4.33" / 110 mm guns in single mounts, 40.59lbs / 18.41kg shells, 1926 Model
Dual purpose guns in deck mounts
on side, evenly spread, all raised mounts
20 - 1.46" / 37.0 mm guns (10x2 guns), 1.54lbs / 0.70kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1926 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 437 lbs / 198 kg
Shells per gun, main battery: 250

Aircraft:
1936 Complement:
- 18 Spartan SP-20A2N "Corsair II" or FMA I-01N "Buchon"
- 9 Accrisius DBN-1 "Banshee" Dive Bombers
- 9 ANAF TBN-8 Torpedo Bombers
- 36 aircraft total (up to 47 may be carried)

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.10" / 130 mm 365.00 ft / 111.25 m 12.00 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 102 % of normal length

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

- Armour deck: 1.57" / 40 mm, Conning tower: 2.35" / 60 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 95,599 shp / 71,317 Kw = 31.00 kts
Range 12,500nm at 12.00 kts
Bunker at max displacement = 2,167 tons

Complement:
630 - 820

Cost:
£3.081 million / $12.326 million

Distribution of weights at normal displacement:
Armament: 55 tons, 0.4 %
Armour: 1,639 tons, 12.0 %
- Belts: 937 tons, 6.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 8 tons, 0.1 %
- Armour Deck: 664 tons, 4.9 %
- Conning Tower: 29 tons, 0.2 %
Machinery: 3,018 tons, 22.1 %
Hull, fittings & equipment: 4,192 tons, 30.7 %
Fuel, ammunition & stores: 1,549 tons, 11.3 %
Miscellaneous weights: 3,200 tons, 23.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,357 lbs / 6,512 Kg = 353.7 x 4.3 " / 110 mm shells or 1.9 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 2.8 ft / 0.9 m
Roll period: 18.8 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 1.26

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.470
Length to Beam Ratio: 7.35 : 1
'Natural speed' for length: 23.47 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.00 ft / 8.53 m
- Forecastle (25 %): 27.50 ft / 8.38 m (26.00 ft / 7.92 m aft of break)
- Mid (45 %): 26.00 ft / 7.92 m
- Quarterdeck (18 %): 16.00 ft / 4.88 m
- Stern: 16.00 ft / 4.88 m
- Average freeboard: 22.78 ft / 6.94 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 100.9 %
- Above water (accommodation/working, high = better): 157.4 %
Waterplane Area: 22,876 Square feet or 2,125 Square metres
Displacement factor (Displacement / loading): 121 %
Structure weight / hull surface area: 102 lbs/sq ft or 498 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 2.04
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Breakdown of Weights:
- Weight for 56 aircraft (3,136 tons)
- 64 tons for flag bridge and communications gear

Ships in Class:
- Mapuche (PAL-01) - 1927, retired and scrapped 1947

Brockpaine

The Shadow

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Tuesday, January 17th 2017, 4:59pm

Guardia Marina Hyatt, Chilean Light Aviation Cruiser laid down 1925 (Engine 1939)
In late 1939, the Hyatt received an extreme reconstruction intended to enhance her capabilities. The ship was lengthened by twenty-five feet, and modest bulges were added to correct stability issues. Her aircraft complement of eight floatplanes was replaced in large part by a number of early helicopters, which the Armada de Chile felt could prove more useful, as they could be recovered at speed, or in rough weather that would cause difficulties for floatplanes.

In June 1947, the ship was decommissioned and retired.

Displacement:
4,875 t light; 5,026 t standard; 5,716 t normal; 6,268 t full load

Dimensions: Length overall / water x beam x draught
435.00 ft / 410.00 ft x 48.10 ft (Bulges 51.00 ft) x 16.25 ft (normal load)
132.59 m / 124.97 m x 14.66 m (Bulges 15.54 m) x 4.95 m

Armament:
4 - 5.91" / 150 mm guns (2x2 guns), 102.98lbs / 46.71kg shells, 1925 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread, 1 raised mount
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.89kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, all forward
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1939 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 429 lbs / 195 kg
Shells per gun, main battery: 150

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

- Conning tower: 2.00" / 51 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 68,133 shp / 50,828 Kw = 31.00 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 1,242 tons

Complement:
328 - 427

Cost:
£1.551 million / $6.202 million

Distribution of weights at normal displacement:
Armament: 54 tons, 0.9 %
Armour: 37 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 23 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 14 tons, 0.2 %
Machinery: 1,843 tons, 32.3 %
Hull, fittings & equipment: 2,191 tons, 38.3 %
Fuel, ammunition & stores: 841 tons, 14.7 %
Miscellaneous weights: 750 tons, 13.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,759 lbs / 2,159 Kg = 46.2 x 5.9 " / 150 mm shells or 0.9 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 2.0 ft / 0.6 m
Roll period: 15.2 seconds
Steadiness - As gun platform (Average = 50 %): 61 %
- Recoil effect (Restricted arc if above 1.00): 0.27
Seaboat quality (Average = 1.00): 1.15

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.589
Length to Beam Ratio: 8.04 : 1
'Natural speed' for length: 20.25 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 53
Bow angle (Positive = bow angles forward): 19.65 degrees
Stern overhang: 15.00 ft / 4.57 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.00 ft / 8.53 m
- Forecastle (20 %): 24.00 ft / 7.32 m
- Mid (50 %): 21.00 ft / 6.40 m
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 22.05 ft / 6.72 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 126.1 %
- Above water (accommodation/working, high = better): 177.6 %
Waterplane Area: 14,273 Square feet or 1,326 Square metres
Displacement factor (Displacement / loading): 117 %
Structure weight / hull surface area: 78 lbs/sq ft or 382 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.86
- Longitudinal: 4.03
- Overall: 1.01
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

Breakdown of Miscellaneous Weights:
- 200 tons for eight gyros or helicopters
- 400 tons for flight deck, elevators, and side-screens
- 100 tons for crane, gear, and aviation gear
- 20 tons for surface-search radar
- 20 tons for air-search radar
- 10 tons for squadron leader communications gear

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



Image by thesmilingassassin and colored by Brockpaine.

Guardia Marina Hyatt, Chilean Seaplane Carrier-Cruiser laid down 1925 (Engine/Conversion 1927)

Displacement:
4,487 t light; 4,626 t standard; 5,150 t normal; 5,549 t full load

Dimensions: Length overall / water x beam x draught
392.00 ft / 385.00 ft x 48.10 ft x 16.25 ft (normal load)
119.48 m / 117.35 m x 14.66 m x 4.95 m

Armament:
4 - 5.91" / 150 mm guns (2x2 guns), 102.69lbs / 46.58kg shells, 1925 Model
Breech loading guns in deck mounts with hoists
on centreline, all forward, 1 raised mount - superfiring
8 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1925 Model
Anti-aircraft guns in deck mounts
on side, all forward
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1925 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 424 lbs / 192 kg
Shells per gun, main battery: 150

Aircraft:
- 8 floatplanes

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

- Conning tower: 0.75" / 19 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 50,000 shp / 37,300 Kw = 29.01 kts
Range 3,500nm at 18.00 kts (Bunkerage = 944 tons)

Complement:
303 - 395

Cost:
£1.383 million / $5.530 million

Distribution of weights at normal displacement:
Armament: 53 tons, 1.0 %
Armour: 11 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 6 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 5 tons, 0.1 %
Machinery: 1,578 tons, 30.6 %
Hull, fittings & equipment: 2,195 tons, 42.6 %
Fuel, ammunition & stores: 663 tons, 12.9 %
Miscellaneous weights: 650 tons, 12.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,490 lbs / 2,037 Kg = 43.7 x 5.9 " / 150 mm shells or 0.9 torpedoes
Stability (Unstable if below 1.00): 1.01
Metacentric height 1.7 ft / 0.5 m
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.39
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.599
Length to Beam Ratio: 8.00 : 1
'Natural speed' for length: 19.62 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 10.12 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.00 ft / 8.53 m
- Forecastle (20 %): 22.00 ft / 6.71 m
- Mid (50 %): 21.00 ft / 6.40 m
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 21.51 ft / 6.55 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 121.1 %
- Above water (accommodation/working, high = better): 174.4 %
Waterplane Area: 13,234 Square feet or 1,229 Square metres
Displacement factor (Displacement / loading): 121 %
Structure weight / hull surface area: 86 lbs/sq ft or 420 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 4.85
- Overall: 1.17
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 Weights:
N/A

Ships in Class:
- Guardia Marina Hyatt (CLV-1) - 1925/1927
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