WesWorld

Maipo-class Transport [1]
- Maipo (ex-Manitoba) - 1901, refit 1917
- Rancagua (ex-Idaho) - 1898, refit 1915

Araucano-class Collier/Oiler
- Araucano - 1925

Conguillío-class Subchaser Tenders
- Conguillío (SCT-1) - 1916
- Puyehue (SCT-2) - 1916

Lago-class Destroyer Tender
- Lago General Carrera (ADT-01) - 1937
- Lago Llanquihue (ADT-02) - 1937
- Lago O'Higgins (ADT-03) - 1938
- Lago Ranco (ADT-04) - 1938

Peninsula-class Fast Fleet Oiler
- Península Tres Montes (AO-01) - 1937
- Península de Taitao (AO-02) - 1938
- Península Muñoz Gamero (AO-03) - 1938
- Península de Brunswick (AO-04) - 1938

Oasis-class Medium Fleet Oiler
- Quillagua (AO-05) - 1937
- Toconao (AO-06) - 1938
- Caspana (AO-07) - 1939
- Socaire (AO-08) - 1940

Fjord-class Fast Fleet Oiler
- Fjord de las Montañas (AO-09) - 1939
- Seno Última Esperanza (AO-10) - 1939
- Fiordo de Aisén (AO-11) - 1940
- Seno Almirantazgoa (AO-12) - 1940

Gulf-class Squadron Tender
- Golfo de Ancud (AGT-01) - 1937
- Golfo de Corcovado (AGT-02) - 1939
- Golfo de Quelalmahue (AGT-03) - 1939
- Golfo Coronados (AGT-04) - 1939

Alacalufes-class Yard Tug
- Alacalufes (YTB-01) - 1938
- Río de Los Cipreses (YTB-02) - 1938
- Las Chinchillas (YTB-03) - 1939
- Radal Siete Tazas (YTB-04) - 1939

Katalalixar-class Oceanic Salvage Tug
- YTB-5 Katalalixar - 1939
- YTB-6 Los Flamencos - 1939
- YTB-7 Valle de la Luna - 1941
- YTB-8 Lago Jeinimeni - 1941

Ingeniero Slight-class Netlayer / Salvage Ship
- Ingeniero Slight (YNL-1) - 1940
- Francisco Hudson (YNL-2) - 1941

Vidal Gormaz-class Oceanographic Research Ship
- Vidal Gormaz (YRS-1) - 1940

[Note 1]: Due to the age of the Maipo and Rancagua, no specifications are currently available.

Araucano, Chilean Collier/Oiler laid down 1925

Displacement:
5,677 t light; 5,879 t standard; 9,000 t normal; 11,461 t full load

Dimensions: Length overall / water x beam x draught
380.00 ft / 370.00 ft x 51.00 ft x 23.00 ft (normal load)
115.82 m / 112.78 m x 15.54 m x 7.01 m

Armament:
3 - 4.30" / 109 mm guns in single mounts, 39.75lbs / 18.03kg shells, 1925 Model
Dual purpose guns in deck mounts
on centreline ends, majority forward
4 - 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 amidships
2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1925 Model
Machine guns in deck mounts
on centreline, all forward, all raised mounts - superfiring
Weight of broadside 126 lbs / 57 kg
Shells per gun, main battery: 300

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.00" / 25 mm 240.50 ft / 73.30 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 100 % of normal length

- Torpedo Bulkhead:
2.00" / 51 mm 9.00 ft / 2.74 m 23.00 ft / 7.01 m (to split the cargo holds)

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

- Armour deck: 1.00" / 25 mm, Conning tower: 1.00" / 25 mm

Machinery:
Oil fired boilers, complex reciprocating steam engines,
Geared drive, 2 shafts, 10,783 ihp / 8,044 Kw = 18.00 kts
Range 11,000nm at 18.00 kts (Bunkerage = 5,619 tons)

Complement:
461 - 600

Cost:
£0.979 million / $3.914 million

Distribution of weights at normal displacement:
Armament: 16 tons, 0.2 %
Armour: 418 tons, 4.6 %
- Belts: 104 tons, 1.2 %
- Torpedo bulkhead: 15 tons, 0.2 %
- Armament: 4 tons, 0.0 %
- Armour Deck: 285 tons, 3.2 %
- Conning Tower: 9 tons, 0.1 %
Machinery: 622 tons, 6.9 %
Hull, fittings & equipment: 2,271 tons, 25.2 %
Fuel, ammunition & stores: 3,323 tons, 36.9 %
Miscellaneous weights: 2,350 tons, 26.1 % (1,300 tons of coal. 1000 tons of oil. 50 tons miscellaneous.)

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10,643 lbs / 4,828 Kg = 267.7 x 4.3 " / 109 mm shells or 1.8 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 2.1 ft / 0.6 m
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.726
Length to Beam Ratio: 7.25 : 1
'Natural speed' for length: 19.24 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 17.88 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.00 ft / 9.45 m
- Forecastle (20 %): 21.00 ft / 6.40 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: 21.48 ft / 6.55 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.9 %
- Above water (accommodation/working, high = better): 132.1 %
Waterplane Area: 15,426 Square feet or 1,433 Square metres
Displacement factor (Displacement / loading): 217 %
Structure weight / hull surface area: 80 lbs/sq ft or 390 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 3.94
- Overall: 1.14
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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Ships in Class:
- Araucano (O-1) - 1925

Conguillío-class, Chilean (Atlantean) Subchaser Tenders, laid down 1916

Displacement:
1,027 t light; 1,061 t standard; 1,244 t normal; 1,391 t full load

Dimensions: Length overall / water x beam x draught
310.00 ft / 310.00 ft x 30.00 ft x 10.50 ft (normal load)
94.49 m / 94.49 m x 9.14 m x 3.20 m

Armament:
2 - 3.00" / 76.2 mm guns (1x2 guns), 13.50lbs / 6.12kg shells, 1928 Model
Quick firing guns in a deck mount with hoist
on centreline forward
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.54lbs / 0.70kg shells, 1928 Model
Anti-aircraft guns in deck mount
on centreline forward
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.54lbs / 0.70kg shells, 1928 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, 1916 Model
Anti-aircraft guns in deck mounts
on side, all aft
Weight of broadside 37 lbs / 17 kg
Shells per gun, main battery: 350

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.78" / 20 mm - -

- Conning tower: 1.57" / 40 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 7,000 shp / 5,222 Kw = 22.39 kts
Range 6,500nm at 12.00 kts
Bunker at max displacement = 331 tons

Complement:
104 - 136

Cost:
£0.125 million / $0.500 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0.4 %
Armour: 6 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 4 tons, 0.3 %
Machinery: 261 tons, 21.0 %
Hull, fittings & equipment: 556 tons, 44.7 %
Fuel, ammunition & stores: 217 tons, 17.4 %
Miscellaneous weights: 200 tons, 16.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,864 lbs / 846 Kg = 138.1 x 3.0 " / 76 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 1.0 ft / 0.3 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 72 %
- Recoil effect (Restricted arc if above 1.00): 0.08
Seaboat quality (Average = 1.00): 1.89

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.446
Length to Beam Ratio: 10.33 : 1
'Natural speed' for length: 17.61 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 38
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: 20.00 ft / 6.10 m
- Forecastle (20 %): 18.00 ft / 5.49 m
- Mid (40 %): 10.00 ft / 3.05 m
- Quarterdeck (15 %): 10.00 ft / 3.05 m
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 12.56 ft / 3.83 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 89.4 %
- Above water (accommodation/working, high = better): 121.6 %
Waterplane Area: 5,913 Square feet or 549 Square metres
Displacement factor (Displacement / loading): 163 %
Structure weight / hull surface area: 49 lbs/sq ft or 240 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.05
- Longitudinal: 2.71
- Overall: 1.15
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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of Miscellaneous Weights:
110 tons for fuel (enough for 6 subchasers)
45 tons for depth charges
20 tons for spare parts
15 tons for 3" ammo
5tons for 37mm ammo (6,200 rounds)
5 tons for 12.7mm ammo

Ships in Class
- Conguillío (SCT-1) - 1916
- Puyehue (SCT-2) - 1916

Image originally by wes/thesmilingassassin and modified by me.

Lago General Carrera, Chilean Destroyer Tender laid down 1937

Displacement:
9,478 t light; 9,779 t standard; 14,007 t normal; 17,390 t full load

Dimensions: Length overall / water x beam x draught
534.30 ft / 530.00 ft x 69.50 ft x 28.50 ft (normal load)
162.86 m / 161.54 m x 21.18 m x 8.69 m

Armament:
4 - 4.33" / 110 mm guns (2x2 guns), 40.61lbs / 18.42kg shells, 1937 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, all raised mounts
6 - 1.57" / 40.0 mm guns (2x3 guns), 1.95lbs / 0.88kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
12 - 0.79" / 20.0 mm guns (4x3 guns), 0.24lbs / 0.11kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 177 lbs / 80 kg
Shells per gun, main battery: 200

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

- Conning tower: 0.39" / 10 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 12,244 shp / 9,134 Kw = 18.00 kts
Range 30,000nm at 15.00 kts
Bunker at max displacement = 7,611 tons

Complement:
643 - 836

Cost:
£2.170 million / $8.680 million

Distribution of weights at normal displacement:
Armament: 22 tons, 0.2 %
Armour: 16 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 11 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 5 tons, 0.0 %
Machinery: 339 tons, 2.4 %
Hull, fittings & equipment: 3,600 tons, 25.7 %
Fuel, ammunition & stores: 4,530 tons, 32.3 %
Miscellaneous weights: 5,500 tons, 39.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
24,018 lbs / 10,894 Kg = 591.4 x 4.3 " / 110 mm shells or 3.7 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 3.2 ft / 1.0 m
Roll period: 16.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.62

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.467
Length to Beam Ratio: 7.63 : 1
'Natural speed' for length: 23.02 kts
Power going to wave formation at top speed: 32 %
Trim (Max stability = 0, Max steadiness = 100): 31
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: 24.40 ft / 7.44 m
- Forecastle (20 %): 17.00 ft / 5.18 m
- Mid (50 %): 15.50 ft / 4.72 m
- Quarterdeck (15 %): 15.50 ft / 4.72 m
- Stern: 15.50 ft / 4.72 m
- Average freeboard: 16.62 ft / 5.06 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 52.9 %
- Above water (accommodation/working, high = better): 111.9 %
Waterplane Area: 23,834 Square feet or 2,214 Square metres
Displacement factor (Displacement / loading): 220 %
Structure weight / hull surface area: 96 lbs/sq ft or 467 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.02
- Longitudinal: 1.58
- Overall: 1.06
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of Weights:
- 1,000 tons ammo (shells, depth charges, etc)
- 2,000 tons spare parts
- 1,000 tons spare crew barracks (~500 men capacity)
- 1,000 tons machine shop
- 500 tons for 200 torpedo spares
- 5,500 tons total

Ships in Class:
- ADT-01 Lago General Carrera - 1937
- ADT-02 Lago Llanquihue - 1937
- ADT-03 Lago O'Higgins - 1938
- ADT-04 Lago Ranco - 1938

Image originally by wes/thesmilingassassin and modified by me.

Peninsula-class, Chilean Oil Tanker laid down 1937

Displacement:
11,255 t light; 11,590 t standard; 16,005 t normal; 19,537 t full load

Dimensions: Length overall / water x beam x draught
554.58 ft / 550.00 ft x 70.00 ft x 25.00 ft (normal load)
169.04 m / 167.64 m x 21.34 m x 7.62 m

Armament:
4 - 4.33" / 110 mm guns (2x2 guns), 40.61lbs / 18.42kg shells, 1937 Model
Dual purpose guns in deck mounts
on centreline, all aft
6 - 1.57" / 40.0 mm guns (2x3 guns), 1.95lbs / 0.89kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, all amidships
6 - 0.79" / 20.0 mm guns (2x3 guns), 0.24lbs / 0.11kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 173 lbs / 79 kg
Shells per gun, main battery: 150

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

- Conning tower: 0.39" / 10 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 2 shafts, 13,452 shp / 10,035 Kw = 18.00 kts
Range 40,000nm at 13.00 kts
Bunker at max displacement = 7,947 tons

Complement:
710 - 924

Cost:
£2.533 million / $10.130 million

Distribution of weights at normal displacement:
Armament: 22 tons, 0.1 %
Armour: 18 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 13 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 5 tons, 0.0 %
Machinery: 373 tons, 2.3 %
Hull, fittings & equipment: 3,842 tons, 24.0 %
Fuel, ammunition & stores: 4,750 tons, 29.7 %
Miscellaneous weights: 7,000 tons, 43.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
26,680 lbs / 12,102 Kg = 657.0 x 4.3 " / 110 mm shells or 3.5 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 3.3 ft / 1.0 m
Roll period: 16.1 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.68

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.582
Length to Beam Ratio: 7.86 : 1
'Natural speed' for length: 23.45 kts
Power going to wave formation at top speed: 34 %
Trim (Max stability = 0, Max steadiness = 100): 30
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: 26.00 ft / 7.92 m
- Forecastle (20 %): 17.00 ft / 5.18 m
- Mid (50 %): 17.00 ft / 5.18 m
- Quarterdeck (15 %): 17.00 ft / 5.18 m
- Stern: 17.00 ft / 5.18 m
- Average freeboard: 17.72 ft / 5.40 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 57.1 %
- Above water (accommodation/working, high = better): 126.3 %
Waterplane Area: 27,688 Square feet or 2,572 Square metres
Displacement factor (Displacement / loading): 202 %
Structure weight / hull surface area: 93 lbs/sq ft or 452 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.01
- Longitudinal: 1.23
- Overall: 1.03
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of Weights:
- 500 tons extra strengthened cranes and line-handling equipment
- 1,500 tons spares and supplies
- 5,000 tons fuel
- 7,000 tons total miscellaneous

Ships in Class:
- Península Tres Montes (AO-01) - 1937
- Península de Taitao (AO-02) - 1938
- Península Muñoz Gamero (AO-03) - 1938
- Península de Brunswick (AO-04) - 1939

Image originally by wes/thesmilingassassin and modified by me.

Oasis-class, Chilean Oil Tanker laid down 1937

Displacement:
9,039 t light; 9,302 t standard; 12,008 t normal; 14,172 t full load

Dimensions: Length overall / water x beam x draught
534.46 ft / 530.00 ft x 68.00 ft x 23.00 ft (normal load)
162.90 m / 161.54 m x 20.73 m x 7.01 m

Armament:
4 - 4.33" / 110 mm guns (2x2 guns), 40.61lbs / 18.42kg shells, 1935 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
12 - 0.79" / 20.0 mm guns (4x3 guns), 0.24lbs / 0.11kg shells, 1935 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 165 lbs / 75 kg
Shells per gun, main battery: 250

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

- Conning tower: 0.79" / 20 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 2 shafts, 11,229 shp / 8,377 Kw = 18.00 kts
Range 34,000nm at 12.00 kts
Bunker at max displacement = 4,870 tons

Complement:
573 - 745

Cost:
£1.926 million / $7.705 million

Distribution of weights at normal displacement:
Armament: 21 tons, 0.2 %
Armour: 16 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 7 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 9 tons, 0.1 %
Machinery: 319 tons, 2.7 %
Hull, fittings & equipment: 3,183 tons, 26.5 %
Fuel, ammunition & stores: 2,969 tons, 24.7 %
Miscellaneous weights: 5,500 tons, 45.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
19,735 lbs / 8,952 Kg = 486.0 x 4.3 " / 110 mm shells or 3.0 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 3.2 ft / 1.0 m
Roll period: 15.9 seconds
Steadiness - As gun platform (Average = 50 %): 48 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.60

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.507
Length to Beam Ratio: 7.79 : 1
'Natural speed' for length: 23.02 kts
Power going to wave formation at top speed: 33 %
Trim (Max stability = 0, Max steadiness = 100): 29
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: 25.32 ft / 7.72 m
- Forecastle (20 %): 16.12 ft / 4.91 m
- Mid (50 %): 16.12 ft / 4.91 m
- Quarterdeck (15 %): 16.12 ft / 4.91 m
- Stern: 16.12 ft / 4.91 m
- Average freeboard: 16.86 ft / 5.14 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 60.7 %
- Above water (accommodation/working, high = better): 129.5 %
Waterplane Area: 24,167 Square feet or 2,245 Square metres
Displacement factor (Displacement / loading): 190 %
Structure weight / hull surface area: 88 lbs/sq ft or 430 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.01
- Longitudinal: 1.27
- Overall: 1.03
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of Miscellaneous Weights:
- 500 tons extra strengthened cranes and line-handling equipment
- 5,000 tons fuel
- 5,500 tons total miscellaneous

Ships in Class:
- Quillagua (AO-05) - 1937
- Toconao (AO-06) - 1938
- Caspana (AO-07) - 1939

Golfo-class, Chilean Squadron Tender laid down 1935

Displacement:
6,208 t light; 6,396 t standard; 8,280 t normal; 9,787 t full load

Dimensions: Length overall / water x beam x draught
423.88 ft / 420.00 ft x 60.00 ft x 23.00 ft (normal load)
129.20 m / 128.02 m x 18.29 m x 7.01 m

Armament:
2 - 4.33" / 110 mm guns (1x2 guns), 40.61lbs / 18.42kg shells, 1935 Model
Dual purpose guns in deck mount
on centreline forward
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.89kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
12 - 0.79" / 20.0 mm guns (4x3 guns), 0.24lbs / 0.11kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 100 lbs / 45 kg
Shells per gun, main battery: 350

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 2,275 shp / 1,697 Kw = 12.00 kts
Range 30,000nm at 12.00 kts
Bunker at max displacement = 3,391 tons

Complement:
433 - 564

Cost:
£1.206 million / $4.822 million

Distribution of weights at normal displacement:
Armament: 12 tons, 0.2 %
Machinery: 65 tons, 0.8 %
Hull, fittings & equipment: 2,131 tons, 25.7 %
Fuel, ammunition & stores: 2,072 tons, 25.0 %
Miscellaneous weights: 4,000 tons, 48.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,270 lbs / 6,019 Kg = 326.8 x 4.3 " / 110 mm shells or 2.7 torpedoes
Stability (Unstable if below 1.00): 1.03
Metacentric height 2.5 ft / 0.7 m
Roll period: 16.1 seconds
Steadiness - As gun platform (Average = 50 %): 41 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.38

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.500
Length to Beam Ratio: 7.00 : 1
'Natural speed' for length: 20.49 kts
Power going to wave formation at top speed: 22 %
Trim (Max stability = 0, Max steadiness = 100): 24
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 %): 14.00 ft / 4.27 m
- Mid (50 %): 14.00 ft / 4.27 m
- Quarterdeck (15 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 14.64 ft / 4.46 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 57.3 %
- Above water (accommodation/working, high = better): 103.4 %
Waterplane Area: 16,790 Square feet or 1,560 Square metres
Displacement factor (Displacement / loading): 196 %
Structure weight / hull surface area: 82 lbs/sq ft or 401 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.04
- Longitudinal: 1.76
- Overall: 1.09
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily

Breakdown of Miscellaneous Weights:

Ships in Class:
- Golfo de Ancud (AGT-01) - 1937
- Golfo de Corcovado (AGT-02) - 1939
- Golfo de Quelalmahue (AGT-03) - 1939
- Golfo Coronados (AGT-04) - 1939

Alacalufes, Chilean Light Yard Tug laid down 1938

Displacement:
75 t light; 81 t standard; 92 t normal; 101 t full load

Dimensions: Length overall / water x beam x draught
90.25 ft / 90.25 ft x 18.00 ft x 4.75 ft (normal load)
27.51 m / 27.51 m x 5.49 m x 1.45 m

Armament:
2 - 1.57" / 40.0 mm guns (1x2 guns), 1.95lbs / 0.88kg shells, 1939 Model
Anti-aircraft guns in deck mount
on centreline forward, all raised guns - superfiring
2 - 0.79" / 20.0 mm guns (1x2 guns), 0.24lbs / 0.11kg shells, 1939 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
Weight of broadside 4 lbs / 2 kg
Shells per gun, main battery: 1,500

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

Machinery:
Diesel Internal combustion generators,
Electric motors, 2 shafts, 594 shp / 443 Kw = 16.55 kts
Range 2,500nm at 12.00 kts
Bunker at max displacement = 20 tons

Complement:
14 - 19

Cost:
£0.031 million / $0.124 million

Distribution of weights at normal displacement:
Armament: 1 tons, 0.6 %
Armour: 1 tons, 1.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 1.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 16 tons, 17.5 %
Hull, fittings & equipment: 45 tons, 49.3 %
Fuel, ammunition & stores: 17 tons, 18.5 %
Miscellaneous weights: 12 tons, 13.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
224 lbs / 102 Kg = 114.8 x 1.6 " / 40 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 0.5 ft / 0.1 m
Roll period: 11.2 seconds
Steadiness - As gun platform (Average = 50 %): 48 %
- Recoil effect (Restricted arc if above 1.00): 0.05
Seaboat quality (Average = 1.00): 1.14

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.417
Length to Beam Ratio: 5.01 : 1
'Natural speed' for length: 11.73 kts
Power going to wave formation at top speed: 73 %
Trim (Max stability = 0, Max steadiness = 100): 40
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: 12.00 ft / 3.66 m
- Forecastle (20 %): 10.00 ft / 3.05 m
- Mid (50 %): 8.00 ft / 2.44 m
- Quarterdeck (15 %): 8.00 ft / 2.44 m
- Stern: 8.00 ft / 2.44 m
- Average freeboard: 8.86 ft / 2.70 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 80.7 %
- Above water (accommodation/working, high = better): 120.8 %
Waterplane Area: 1,049 Square feet or 97 Square metres
Displacement factor (Displacement / loading): 186 %
Structure weight / hull surface area: 21 lbs/sq ft or 103 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.74
- Longitudinal: 16.13
- Overall: 1.01
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent

Breakdown of Miscellaneous Weight:
- 12 tons towing equipment

Ships in Class:
- Alacalufes (YTB-01) - 1938
- Río de Los Cipreses (YTB-02) - 1938
- Las Chinchillas (YTB-03) - 1939
- Radal Siete Tazas (YTB-04) - 1939

Katalalixar, Chile Fleet Tug laid down 1939

Displacement:
1,000 t light; 1,036 t standard; 1,191 t normal; 1,315 t full load

Dimensions: Length overall / water x beam x draught
200.00 ft / 200.00 ft x 32.00 ft x 15.00 ft (normal load)
60.96 m / 60.96 m x 9.75 m x 4.57 m

Armament:
1 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1939 Model
Anti-aircraft gun in deck mount
on centreline forward, 1 raised gun
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1939 Model
Breech loading guns in deck mounts
on side, all amidships, all raised mounts - superfiring
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1939 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 22 lbs / 10 kg
Shells per gun, main battery: 750

Machinery:
Diesel Internal combustion generators,
Electric motors, 2 shafts, 2,538 shp / 1,893 Kw = 16.50 kts
Range 5,000nm at 14.00 kts
Bunker at max displacement = 280 tons

Complement:
100 - 131

Cost:
£0.273 million / $1.092 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.2 %
Machinery: 69 tons, 5.8 %
Hull, fittings & equipment: 844 tons, 70.9 %
Fuel, ammunition & stores: 191 tons, 16.0 %
Miscellaneous weights: 85 tons, 7.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,129 lbs / 1,873 Kg = 305.9 x 3.0 " / 76 mm shells or 2.6 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 %): 59 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 1.69

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.434
Length to Beam Ratio: 6.25 : 1
'Natural speed' for length: 14.14 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 35
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: 16.00 ft / 4.88 m
- Forecastle (20 %): 13.00 ft / 3.96 m
- Mid (50 %): 9.00 ft / 2.74 m
- Quarterdeck (15 %): 11.00 ft / 3.35 m
- Stern: 13.00 ft / 3.96 m
- Average freeboard: 11.44 ft / 3.49 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 30.7 %
- Above water (accommodation/working, high = better): 80.3 %
Waterplane Area: 4,032 Square feet or 375 Square metres
Displacement factor (Displacement / loading): 488 %
Structure weight / hull surface area: 112 lbs/sq ft or 549 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 2.29
- Longitudinal: 11.19
- Overall: 2.68
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of Miscellaneous Weight:
- 30 tons salvage crane
- 20 tons towing equipment
- 15 tons ASW fit
- 15 tons high-capacity pumps
- 5 tons reserved for diving bell/sub rescue apparatus

Ships in Class:
- YTB-5 Katalalixar - 1939
- YTB-6 Los Flamencos - 1939
- YTB-7 Valle de la Luna - 1941
- YTB-8 Lago Jeinimeni - 1941

Fjord de los Montanas, Chilean Fleet Tanker laid down 1939

Displacement:
8,691 t light; 9,210 t standard; 23,041 t normal; 34,106 t full load

Dimensions: Length overall / water x beam x draught
591.56 ft / 575.00 ft x 75.00 ft x 34.00 ft (normal load)
180.31 m / 175.26 m x 22.86 m x 10.36 m

Armament:
1 - 4.33" / 110 mm guns in single mounts, 40.61lbs / 18.42kg shells, 1939 Model
Dual purpose gun in deck mount
on centreline forward
4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, all amidships
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 110 lbs / 50 kg
Shells per gun, main battery: 750

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 10,946 shp / 8,166 Kw = 16.00 kts
Range 64,250nm at 16.00 kts
Bunker at max displacement = 24,896 tons

Complement:
934 - 1,215

Cost:
£2.078 million / $8.314 million

Distribution of weights at normal displacement:
Armament: 14 tons, 0.1 %
Armour: 8 tons, 0.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 8 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 296 tons, 1.3 %
Hull, fittings & equipment: 4,874 tons, 21.2 %
Fuel, ammunition & stores: 14,350 tons, 62.3 %
Miscellaneous weights: 3,500 tons, 15.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
97,780 lbs / 44,352 Kg = 2,407.7 x 4.3 " / 110 mm shells or 12.0 torpedoes
Stability (Unstable if below 1.00): 1.43
Metacentric height 6.1 ft / 1.8 m
Roll period: 12.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.99

Hull form characteristics:
Hull has raised forecastle, raised quarterdeck
Block coefficient: 0.550
Length to Beam Ratio: 7.67 : 1
'Natural speed' for length: 23.98 kts
Power going to wave formation at top speed: 28 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 6.00 ft / 1.83 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.00 ft / 8.84 m
- Forecastle (20 %): 24.00 ft / 7.32 m (17.00 ft / 5.18 m aft of break)
- Mid (50 %): 17.00 ft / 5.18 m
- Quarterdeck (25 %): 24.00 ft / 7.32 m (17.00 ft / 5.18 m before break)
- Stern: 25.00 ft / 7.62 m
- Average freeboard: 20.68 ft / 6.30 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 23.1 %
- Above water (accommodation/working, high = better): 104.3 %
Waterplane Area: 30,097 Square feet or 2,796 Square metres
Displacement factor (Displacement / loading): 547 %
Structure weight / hull surface area: 99 lbs/sq ft or 481 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.63
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Notes:
4,819 tons of range reserved for ship's use, remainder simmed as cargo.

Ships in Class:
- Fjord de las Montañas (AO-09) - 1939
- Seno Última Esperanza (AO-10) - 1939
- Fiordo de Aisén (AO-11) - 1940
- Seno Almirantazgoa (AO-12) - 1940

Another Future Project

Almirante José Toribio Merino Saavedra-class, Chilean Multipurpose Auxiliary laid down 1940
These three vessels are designed as "multi-purpose" support ships, and can be quickly converted to serve as submarine motherships, minelayers, infantry landing ships, seaplane tenders, or other various roles. This depends almost completely on the general stores they carry, and the ships are visually identical. The lead vessel, Almirante José Toribio Merino Saavedra, will be assigned as a submarine mothership, while Ministro Zentento and Presidente Errazuriz will be assigned as infantry landing ships.

Displacement:
2,650 t light; 2,759 t standard; 3,500 t normal; 4,093 t full load

Dimensions: Length overall / water x beam x draught
352.25 ft / 344.49 ft x 48.23 ft x 13.12 ft (normal load)
107.37 m / 105.00 m x 14.70 m x 4.00 m

Armament:
4 - 4.33" / 110 mm guns in single mounts, 40.61lbs / 18.42kg shells, 1940 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on centreline, all aft, all raised mounts - superfiring
6 - 0.79" / 20.0 mm guns (2x3 guns), 0.24lbs / 0.11kg shells, 1940 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 172 lbs / 78 kg
Shells per gun, main battery: 400

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

- Conning tower: 1.18" / 30 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 3,857 shp / 2,878 Kw = 16.00 kts
Range 11,500nm at 15.00 kts
Bunker at max displacement = 1,333 tons

Complement:
226 - 295

Cost:
£0.751 million / $3.005 million

Distribution of weights at normal displacement:
Armament: 21 tons, 0.6 %
Armour: 21 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 15 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.2 %
Machinery: 103 tons, 2.9 %
Hull, fittings & equipment: 1,104 tons, 31.5 %
Fuel, ammunition & stores: 850 tons, 24.3 %
Miscellaneous weights: 1,400 tons, 40.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,705 lbs / 3,495 Kg = 189.7 x 4.3 " / 110 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 2.0 ft / 0.6 m
Roll period: 14.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.11
Seaboat quality (Average = 1.00): 1.94

Hull form characteristics:
Hull has low forecastle, low quarterdeck
Block coefficient: 0.562
Length to Beam Ratio: 7.14 : 1
'Natural speed' for length: 18.56 kts
Power going to wave formation at top speed: 39 %
Trim (Max stability = 0, Max steadiness = 100): 36
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 (20 %): 12.37 ft / 3.77 m (18.04 ft / 5.50 m aft of break)
- Mid (50 %): 14.76 ft / 4.50 m
- Quarterdeck (15 %): 8.20 ft / 2.50 m (14.76 ft / 4.50 m before break)
- Stern: 9.02 ft / 2.75 m
- Average freeboard: 14.57 ft / 4.44 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 59.5 %
- Above water (accommodation/working, high = better): 153.4 %
Waterplane Area: 11,724 Square feet or 1,089 Square metres
Displacement factor (Displacement / loading): 195 %
Structure weight / hull surface area: 64 lbs/sq ft or 311 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.71
- Overall: 1.01
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 Miscellaneous Weights (as LSI(M)):
- 75 tons for 6 Landing Craft Assault (12.5 tons each)
- 70 tons for 2 Landing Craft Mechanized (35 tons each)
- 926 tons for 463 troops
- 329 tons for associated gear
(Note 1: as LSI(M), ship is not intended to beach during assault operations.)

Breakdown of Miscellaneous Weights (as BMS):
- 462 tons for spare crew quarters and recreational areas
- 200 tons for engineering workshop
- 200 tons for torpedo workshop
- 50 tons for working crane
- 488 for spare ammo and torpedoes

Proposed Ships in Class:
- Almirante José Toribio Merino Saavedra (Submarine Mothership) - Ordered for 1940
- Ministro Zentento (Landing Ship Infantry (Medium)) - Ordered for 1940
- Presidente Errazuriz (Landing Ship Infantry (Medium)) - Ordered for 1941

Ship design started out as a 'backsim' of the Swedish ship Visborg.

Ingeniero Slight, Chilean Netlayer, Rescue Ship and Salvage Vessel laid down 1940

Displacement:
952 t light; 983 t standard; 1,229 t normal; 1,425 t full load

Dimensions: Length overall / water x beam x draught
189.10 ft / 180.45 ft x 37.73 ft x 11.48 ft (normal load)
57.64 m / 55.00 m x 11.50 m x 3.50 m

Armament:
1 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1940 Model
Dual purpose gun in deck mount
on centreline forward
8 - 1.10" / 27.9 mm guns (2x4 guns), 0.67lbs / 0.30kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, all aft, all raised mounts - superfiring
Weight of broadside 19 lbs / 9 kg
Shells per gun, main battery: 500

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 1 shaft, 969 shp / 723 Kw = 12.50 kts
Range 10,000nm at 12.50 kts
Bunker at max displacement = 443 tons

Complement:
103 - 134

Cost:
£0.233 million / $0.934 million

Distribution of weights at normal displacement:
Armament: 2 tons, 0.2 %
Armour: 2 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 26 tons, 2.1 %
Hull, fittings & equipment: 472 tons, 38.4 %
Fuel, ammunition & stores: 277 tons, 22.5 %
Miscellaneous weights: 450 tons, 36.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,665 lbs / 1,209 Kg = 197.4 x 3.0 " / 76 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.4 ft / 0.4 m
Roll period: 13.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 4.78 : 1
'Natural speed' for length: 13.43 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 14.76 ft / 4.50 m
- Forecastle (20 %): 11.48 ft / 3.50 m
- Mid (50 %): 9.02 ft / 2.75 m
- Quarterdeck (15 %): 9.84 ft / 3.00 m
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 10.54 ft / 3.21 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 49.7 %
- Above water (accommodation/working, high = better): 83.6 %
Waterplane Area: 4,608 Square feet or 428 Square metres
Displacement factor (Displacement / loading): 235 %
Structure weight / hull surface area: 67 lbs/sq ft or 329 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.40
- Longitudinal: 4.86
- Overall: 1.59
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Ships in Class:
- Ingeniero Slight (YNL-1) - 1940
- Francisco Hudson (YNL-2) - 1941

Notes:
These vessels have a diving bell for submarine rescue, cranes, and other miscellaneous salvage equipment.

Vidal Gormaz, Chilean Oceanographic Research Ship laid down 1940

Displacement:
1,134 t light; 1,182 t standard; 1,941 t normal; 2,549 t full load

Dimensions: Length overall / water x beam x draught
229.17 ft / 213.25 ft x 38.39 ft x 15.09 ft (normal load)
69.85 m / 65.00 m x 11.70 m x 4.60 m

Armament:
1 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1940 Model
Dual purpose gun in deck mount
on centreline forward
8 - 1.10" / 27.9 mm guns (2x4 guns), 0.67lbs / 0.30kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 19 lbs / 9 kg
Shells per gun, main battery: 750

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 5,092 shp / 3,799 Kw = 18.00 kts
Range 15,000nm at 15.00 kts
Bunker at max displacement = 1,366 tons

Complement:
146 - 190

Cost:
£0.364 million / $1.457 million

Distribution of weights at normal displacement:
Armament: 2 tons, 0.1 %
Machinery: 136 tons, 7.0 %
Hull, fittings & equipment: 500 tons, 25.8 %
Fuel, ammunition & stores: 808 tons, 41.6 %
Miscellaneous weights: 495 tons, 25.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,367 lbs / 1,981 Kg = 323.5 x 3.0 " / 76 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.4 ft / 0.4 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.60

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.550
Length to Beam Ratio: 5.56 : 1
'Natural speed' for length: 14.60 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 44
Bow angle (Positive = bow angles forward): 35.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.04 ft / 5.50 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (50 %): 14.76 ft / 4.50 m
- Quarterdeck (15 %): 8.20 ft / 2.50 m (14.76 ft / 4.50 m before break)
- Stern: 8.20 ft / 2.50 m
- Average freeboard: 14.48 ft / 4.42 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 53.0 %
- Above water (accommodation/working, high = better): 112.9 %
Waterplane Area: 5,713 Square feet or 531 Square metres
Displacement factor (Displacement / loading): 247 %
Structure weight / hull surface area: 49 lbs/sq ft or 241 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.84
- Longitudinal: 4.77
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Ships in Class:
- Vidal Gormaz