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Teniente Vasquez (ex-RSAN Wasp), laid down 1918, sold 1939
Capitan Garcia (ex-RSAN Stinger), laid down 1918, sold 1939

Displacement:
1.970 t light; 2.061 t standard; 2.321 t normal; 2.528 t full load

Dimensions: Length overall / water x beam x draught
382,92 ft / 377,30 ft x 34,45 ft x 14,53 ft (normal load)
116,71 m / 115,00 m x 10,50 m x 4,43 m

Armament:
4 - 5,91" / 150 mm guns in single mounts, 102,98lbs / 46,71kg shells, 1918 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 1,57" / 40,0 mm guns (2x2 guns), 1,95lbs / 0,88kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
4 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 421 lbs / 191 kg
Shells per gun, main battery: 190
6 - 21,0" / 533 mm above water torpedoes

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

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 50.938 shp / 38.000 Kw = 33,90 kts
Range 4.000nm at 15,00 kts
Bunker at max displacement = 467 tons

Complement:
166 - 217

Cost:
£0,604 million / $2,418 million

Distribution of weights at normal displacement:
Armament: 53 tons, 2,3%
Armour: 16 tons, 0,7%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 16 tons, 0,7%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 1.351 tons, 58,2%
Hull, fittings & equipment: 541 tons, 23,3%
Fuel, ammunition & stores: 351 tons, 15,1%
Miscellaneous weights: 10 tons, 0,4%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
401 lbs / 182 Kg = 3,9 x 5,9 " / 150 mm shells or 0,2 torpedoes
Stability (Unstable if below 1.00): 1,47
Metacentric height 2,0 ft / 0,6 m
Roll period: 10,3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,26
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0,430
Length to Beam Ratio: 10,95 : 1
'Natural speed' for length: 19,42 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 70
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%): 20,01 ft / 6,10 m (11,81 ft / 3,60 m aft of break)
- Mid (50%): 11,81 ft / 3,60 m
- Quarterdeck (15%): 11,81 ft / 3,60 m
- Stern: 11,81 ft / 3,60 m
- Average freeboard: 14,39 ft / 4,39 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 205,8%
- Above water (accommodation/working, high = better): 75,5%
Waterplane Area: 8.162 Square feet or 758 Square metres
Displacement factor (Displacement / loading): 56%
Structure weight / hull surface area: 33 lbs/sq ft or 161 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,50
- Longitudinal: 1,45
- Overall: 0,55
Hull space for machinery, storage, compartmentation is extremely poor
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform

Terror (ex-Madurai, G-120, D-20), laid down 1918, sold to Mexico 1942
Terrible (ex-Coimbatore, G-121, D-21), laid down 1918, sold to Mexico 1942
Torbellino (ex-Nashik, G-122, D-22), laid down 1918, sold to Mexico 1942
Temerario (ex-Aurangabad, G-123, D-23), laid down 1918, sold to Mexico 1942

G-120, laid down 1918

Length, 95.0 m x Beam, 9.5 m x Depth, 3.0 m
1201 tonnes normal displacement (1105 tonnes standard)

Main battery: 4 x 10.5-cm
Secondary battery: 4 x 3.5-cm
AA battery: 2 x 1.5-cm

Weight of broadside: 67 kg

6 TT, 50.0 cm

Hull unarmored
Conning tower, 5.0 cm

Battery armor:
Main, 5.0 cm shields / secondary, 2.0 cm shields
AA, 2.0 cm shields

Maximum speed for 25016 shaft kw = 32.85 knots
Approximate cruising radius, 5500 nm / 10 knots

Typical complement: 102-133


Estimated cost, $1.180 million (£295,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea
conditions.

Oil firing.

Magazines and engineering spaces are cramped, with poor
watertight subdivision.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 18 tonnes = 2 pct
Armor, total ..................... 16 tonnes = 1 pct

C.T. 5 tonnes = 0 pct
Armament 11 tonnes = 1 pct

Machinery ........................ 676 tonnes = 56 pct
Hull and fittings; equipment ..... 358 tonnes = 30 pct
Fuel, ammunition, stores ......... 133 tonnes = 11 pct
Miscellaneous weights ............ 0 tonnes = 0 pct
-----
1201 tonnes = 100 pct

Estimated metacentric height, 0.4 m

Displacement summary:

Light ship: 1068 tonnes
Standard displacement: 1105 tonnes
Normal service: 1201 tonnes
Full load: 1273 tonnes

Loading submergence 525 tonnes/metre

+++++++++++++++++++++++++


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.31

Shellfire needed to sink: 140 kg = 8.7 x 10.5-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 0.2
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 63 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.19

Relative quality as a seaboat: 1.05

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.44
Sharpness coefficient: 0.31
Hull speed coefficient 'M' = 8.96
'Natural speed' for length = 17.7 knots
Power going to wave formation
at top speed: 70 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 193 percent

Relative accommodation and working space: 98 percent


Displacement factor: 47 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.50
(Structure weight per square
metre of hull surface: 160 kg)

Relative longitudinal hull strength: 1.51
(for 4.60 m average freeboard;
freeboard adjustment +1.58 m)

Relative composite hull strength: 0.56

+++++++++++++++++++++++++


[Machine-readable parameters: Spring Style v. 1.2.1]

311.60 x 31.16 x 9.84; 15.09 -- Dimensions
0.44 -- Block coefficient
1918 -- Year laid down
32.85 / 5500 / 10.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
0 tons -- Miscellaneous weights
++++++++++
4 x 4.13; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
4 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
2 x 0.59 -- Tertiary (QF/AA) battery
Gun-shields
:
0 -- No fourth (light) battery
6 / 0 / 19.69 -- TT / submerged / size
++++++++++
0.00 -- No belt armor
0.00 / 1.97 -- Deck / CT
1.97 / 0.79 / 0.79 / 0.00 -- Battery armor


(Note: For portability, values are stored in Anglo-American units)

Jaguar (ex-Vijayawada, ex-G-124, D-24), laid down 1919, sunk August 10 1937
Pantera (ex-Visakhapatnan, ex-G-125, D-25), laid down 1919, sunk July 31 1937
Ocelote (ex-Jabalpar, ex-G-126, D-26), laid down 1919, sunk August 10 1937
Margay (ex-Jamshedput, ex-G-127, D-27), laid down 1920, sold to Mexico 1942

G-120, laid down 1918

Length, 95.0 m x Beam, 9.5 m x Depth, 3.0 m
1201 tonnes normal displacement (1105 tonnes standard)

Main battery: 4 x 10.5-cm
Secondary battery: 4 x 3.5-cm
AA battery: 2 x 1.5-cm

Weight of broadside: 67 kg

6 TT, 50.0 cm

Hull unarmored
Conning tower, 5.0 cm

Battery armor:
Main, 5.0 cm shields / secondary, 2.0 cm shields
AA, 2.0 cm shields

Maximum speed for 25016 shaft kw = 32.85 knots
Approximate cruising radius, 5500 nm / 10 knots

Typical complement: 102-133


Estimated cost, $1.180 million (£295,000)

Remarks:

Caution: Hull structure is subject to strain in open-sea
conditions.

Oil firing.

Magazines and engineering spaces are cramped, with poor
watertight subdivision.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 18 tonnes = 2 pct
Armor, total ..................... 16 tonnes = 1 pct

C.T. 5 tonnes = 0 pct
Armament 11 tonnes = 1 pct

Machinery ........................ 676 tonnes = 56 pct
Hull and fittings; equipment ..... 358 tonnes = 30 pct
Fuel, ammunition, stores ......... 133 tonnes = 11 pct
Miscellaneous weights ............ 0 tonnes = 0 pct
-----
1201 tonnes = 100 pct

Estimated metacentric height, 0.4 m

Displacement summary:

Light ship: 1068 tonnes
Standard displacement: 1105 tonnes
Normal service: 1201 tonnes
Full load: 1273 tonnes

Loading submergence 525 tonnes/metre

+++++++++++++++++++++++++


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.31

Shellfire needed to sink: 140 kg = 8.7 x 10.5-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 0.2
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 63 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.19

Relative quality as a seaboat: 1.05

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.44
Sharpness coefficient: 0.31
Hull speed coefficient 'M' = 8.96
'Natural speed' for length = 17.7 knots
Power going to wave formation
at top speed: 70 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 193 percent

Relative accommodation and working space: 98 percent


Displacement factor: 47 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.50
(Structure weight per square
metre of hull surface: 160 kg)

Relative longitudinal hull strength: 1.51
(for 4.60 m average freeboard;
freeboard adjustment +1.58 m)

Relative composite hull strength: 0.56

+++++++++++++++++++++++++


[Machine-readable parameters: Spring Style v. 1.2.1]

311.60 x 31.16 x 9.84; 15.09 -- Dimensions
0.44 -- Block coefficient
1918 -- Year laid down
32.85 / 5500 / 10.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
0 tons -- Miscellaneous weights
++++++++++
4 x 4.13; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
4 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
2 x 0.59 -- Tertiary (QF/AA) battery
Gun-shields
:
0 -- No fourth (light) battery
6 / 0 / 19.69 -- TT / submerged / size
++++++++++
0.00 -- No belt armor
0.00 / 1.97 -- Deck / CT
1.97 / 0.79 / 0.79 / 0.00 -- Battery armor


(Note: For portability, values are stored in Anglo-American units)

The Indian destroyers of the Third Cruiser Squadron after a refit would be delivered to Peru in the middle of 1937. SIM by Howard. Peru knows the quality of the ships and seakeeping of the three destroyers was not the best but they wanted hulls for secondary missions.

Apurimac (ex-BNS Churu), laid down 1917 (Engine 1932) – scrapped 1946
Rimac (ex-BNS Bareilly), laid down 1917 (Engine 1932) – scrapped 1946
Gamarra (ex-BNS Rae Bareli), laid down 1917 (Engine 1932) – scrapped 1946

Displacement:
1,606 t light; 1,668 t standard; 1,808 t normal; 1,920 t full load

Dimensions: Length overall / water x beam x draught
350.19 ft / 336.29 ft x 31.17 ft x 13.12 ft (normal load)
106.74 m / 102.50 m x 9.50 m x 4.00 m

Armament:
4 - 3.94" / 100 mm guns (2x2 guns), 30.51lbs / 13.84kg shells, 1932 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread
8 - 1.46" / 37.0 mm guns (2x4 guns), 1.55lbs / 0.70kg shells, 1932 Model
Anti-aircraft guns in deck mounts with hoists
on side, all amidships
8 - 1.06" / 27.0 mm guns (4x2 guns), 0.60lbs / 0.27kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 139 lbs / 63 kg
Shells per gun, main battery: 300
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0.98" / 25 mm 218.57 ft / 66.62 m 6.69 ft / 2.04 m
Ends: Unarmoured
Main Belt covers 100 % of normal length
Main belt does not fully cover magazines and engineering spaces

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

- Conning tower: 0.98" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 37,039 shp / 27,631 Kw = 32.00 kts
Range 5,000nm at 12.00 kts
Bunker at max displacement = 252 tons

Complement:
138 - 180

Cost:
£0.356 million / $1.422 million

Distribution of weights at normal displacement:
Armament: 17 tons, 1.0 %
Armour: 76 tons, 4.2 %
- Belts: 59 tons, 3.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 14 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 891 tons, 49.3 %
Hull, fittings & equipment: 532 tons, 29.4 %
Fuel, ammunition & stores: 202 tons, 11.1 %
Miscellaneous weights: 90 tons, 5.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
551 lbs / 250 Kg = 18.1 x 3.9 " / 100 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.22
Metacentric height 1.2 ft / 0.4 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 44 %
- Recoil effect (Restricted arc if above 1.00): 0.24
Seaboat quality (Average = 1.00): 0.77

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.460
Length to Beam Ratio: 10.79 : 1
'Natural speed' for length: 18.34 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.18 ft / 6.15 m
- Forecastle (20 %): 12.83 ft / 3.91 m
- Mid (50 %): 12.83 ft / 3.91 m
- Quarterdeck (15 %): 12.83 ft / 3.91 m
- Stern: 12.83 ft / 3.91 m
- Average freeboard: 13.42 ft / 4.09 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 172.7 %
- Above water (accommodation/working, high = better): 56.6 %
Waterplane Area: 6,742 Square feet or 626 Square metres
Displacement factor (Displacement / loading): 73 %
Structure weight / hull surface area: 39 lbs/sq ft or 189 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.62
- Longitudinal: 1.94
- Overall: 0.70
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

90 tons for radar , sonar, Y guns, and mine rails

(Historical data)

This is the trawler Rio Maranon, which was converted into service as a fisheries research vessel. She's got a limited armament for policing and wartime purposes.

The ship is somewhat large and fast for a trawler; her civilian owners found her too expensive to economically operate, but it suited the Marina's needs reasonably well.

Rio Maranon, laid down 1935, refitted into service 1942

Enter ship name, Enter country Enter ship type laid down 1938

Displacement: 1,021 t light; 1,051 t standard; 1,199 t normal; 1,317 t full load

Dimensions: Length overall / water x beam x draught

204.35 ft / 196.85 ft x 36.09 ft x 9.84 ft (normal load) [62.29 m / 60.00 m x 11.00 m x 3.00 m]

Armament:

1 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1938 Model Dual purpose gun in a deck mount with hoist on centerline forward, 1 raised gun
1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft gun in deck mount on centerline aft, 1 raised gun
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1938 Model Anti-aircraft guns in deck mounts on side, all amidships, all raised mounts - superfiring
Weight of broadside 37 lbs / 17 kg
Shells per gun, main battery: 300

Armor:

Gun armor: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 0.98" / 25 mm 0.39" / 10 mm 0.98" / 25 mm
2nd: 0.79" / 20 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:

Coal fired boilers, complex reciprocating steam engines, Geared drive, 2 shafts, 4,000 ihp / 2,984 Kw = 17.92 kts
Range 6,000nm at 10.00 kts (Bunkerage = 265 tons)

Complement: 101 - 132

Cost: £0.416 million / $1.664 million

Distribution of weights at normal displacement:

Armament: 5 tons, 0.4 %
Armor: 3 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.2 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 244 tons, 20.3 %
Hull, fittings & equipment: 381 tons, 31.8 %
Fuel, ammunition & stores: 178 tons, 14.8 %
Miscellaneous weights: 389 tons, 32.5 %
-105 t: Accommodation for 33 scientists and/or marine constables
-100 t: Trawl gear
-100 t: Labs and workspace
-74 t: Weight reserve/deck cargo
-10 t: Rails, Throwers, and 30 depth charges

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 1,490 lbs / 676 Kg = 42.2 x 4.1 " / 105 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 1.4 ft / 0.4 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 1.64

Hull form characteristics:

Hull has raised forecastle
Block coefficient: 0.600
Length to Beam Ratio: 5.45: 1
'Natural speed' for length: 14.03 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 31
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.95 ft / 7.30 m
- Forecastle (20 %): 21.00 ft / 6.40 m (13.12 ft / 4.00 m aft of break)
- Mid (50 %): 11.81 ft / 3.60 m
- Quarterdeck (25 %): 13.12 ft / 4.00 m
- Stern: 15.09 ft / 4.60 m
- Average freeboard: 14.82 ft / 4.52 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 104.8 %
- Above water (accommodation/working, high = better): 122.2 %
Waterplane Area: 5,196 Square feet or 483 Square meters
Displacement factor (Displacement / loading): 131 %
Structure weight / hull surface area: 43 lbs/sq ft or 209 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.82
- Longitudinal: 5.43
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

The following small vessels have been scrapped or otherwise expended in service, and are no longer in the inventory

Iquitos (1875)
73x22x7
41t
2x1-pdr
2xMG
speed 8knt


Cahaupanas (1896)
65x12.5x3.5'
30t
2xMG
speed 7knt


Francisco Pizarro (1899)
50x8x1.5'
?t
1xMG
speed 10knt


America, Peruvian Amazon Flotilla Gunboat laid down 1903

Displacement: 159 t light; 165 t standard; 183 t normal; 198 t full load

Dimensions: Length overall / water x beam x draught
133.00 ft / 133.00 ft x 19.50 ft x 4.50 ft (normal load)
40.54 m / 40.54 m x 5.94 m x 1.37 m

Armament: 2 - 3.00" / 76.2 mm guns in single mounts, 14.00lbs / 6.35kg shells, 1903 Model Quick firing guns in deck mounts on centreline ends, evenly spread
2 - 0.30" / 7.6 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1903 Model Machine guns in deck mounts on side, all amidships
Weight of broadside 28 lbs / 13 kg
Shells per gun, main battery: 150

Machinery:

Coal fired boilers, simple reciprocating steam engines, Direct drive, 2 shafts, 512 ihp / 382 Kw = 14.00 kts
Range 2,500nm at 8.00 kts (Bunkerage = 34 tons)

Complement: 24 - 32

Cost: £0.019 million / $0.076 million

Distribution of weights at normal displacement:

Armament: 3 tons, 1.8 %
Machinery: 76 tons, 41.2 %
Hull, fittings & equipment: 65 tons, 35.2 %
Fuel, ammunition & stores: 25 tons, 13.5 %
Miscellaneous weights: 15 tons, 8.2 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 113 lbs / 51 Kg = 8.4 x 3.0 " / 76 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.39
Metacentric height 0.8 ft / 0.2 m
Roll period: 9.4 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.10
Seaboat quality (Average = 1.00): 1.09

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 6.82 : 1
'Natural speed' for length: 11.53 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 65
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: 5.50 ft / 1.68 m
- Forecastle (20 %): 5.50 ft / 1.68 m
- Mid (50 %): 5.50 ft / 1.68 m
- Quarterdeck (15 %): 5.50 ft / 1.68 m
- Stern: 5.50 ft / 1.68 m
- Average freeboard: 5.50 ft / 1.68 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 156.4 %
- Above water (accommodation/working, high = better): 79.0 %
Waterplane Area: 1,810 Square feet or 168 Square metres
Displacement factor (Displacement / loading): 84 %
Structure weight / hull surface area: 25 lbs/sq ft or 124 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.69
- Overall: 1.04

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


Cusco (1906)
Puno
Requena
Oreliano
73x10x2.5'
20t
1xMG
speed 9.25knt

(Historical data)

Peruvian Lima-class Coast Defense Battleship laid down 1926

Displacement:
7,594 t light; 8,002 t standard; 8,672 t normal; 9,208 t full load

Dimensions: Length overall / water x beam x draught
417.29 ft / 408.00 ft x 63.50 ft x 21.30 ft (normal load)
127.19 m / 124.36 m x 19.35 m x 6.49 m

Armament:
4 - 12.00" / 305 mm guns (2x2 guns), 864.00lbs / 391.90kg shells, 1926 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
4 - 6.00" / 152 mm guns (2x2 guns), 108.00lbs / 48.99kg shells, 1926 Model
Quick firing guns in turrets (on barbettes)
on centreline ends, evenly spread, all raised mounts - superfiring
12 - 3.00" / 76.2 mm guns (6x2 guns), 13.50lbs / 6.12kg shells, 1926 Model
Quick firing guns in deck mounts with hoists
on side, evenly spread
8 - 1.57" / 40.0 mm guns (6 mounts), 1.95lbs / 0.89kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.98" / 25.0 mm guns (6 mounts), 0.48lbs / 0.22kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, evenly spread

Weight of broadside 4,069 lbs / 1,846 kg
Shells per gun, main battery: 100

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 10.0" / 255 mm 183.73 ft / 56.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 69 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.0" / 255 mm 5.91" / 150 mm 10.0" / 255 mm
2nd: 1.97" / 50 mm 1.18" / 30 mm 1.97" / 50 mm
3rd: 1.18" / 30 mm - -
4th: 0.79" / 20 mm - -
5th: 0.59" / 15 mm - -

- Armour deck: 3.54" / 90 mm, Conning tower: 2.56" / 65 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 20,600 shp / 15,368 Kw = 21.75 kts
Range 13,700nm at 10.00 kts (Bunkerage = 1,206 tons)

Complement:
449 - 584

Cost:
£2.713 million / $10.853 million

Distribution of weights at normal displacement:
Armament: 509 tons, 5.9 %
Armour: 2,837 tons, 32.7 %
- Belts: 868 tons, 10.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 761 tons, 8.8 %
- Armour Deck: 1,185 tons, 13.7 %
- Conning Tower: 23 tons, 0.3 %
Machinery: 659 tons, 7.6 %
Hull, fittings & equipment: 3,589 tons, 41.4 %
Fuel, ammunition & stores: 1,077 tons, 12.4 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12,246 lbs / 5,555 Kg = 14.2 x 12.0 " / 305 mm shells or 2.2 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 2.8 ft / 0.8 m
Roll period: 16.0 seconds
Steadiness - As gun platform (Average = 50 %): 63 %
- Recoil effect (Restricted arc if above 1.00): 0.80
Seaboat quality (Average = 1.00): 1.23

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 6.43 : 1
'Natural speed' for length: 20.20 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 51
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.00 ft / 7.01 m
- Forecastle (20 %): 16.00 ft / 4.88 m
- Mid (50 %): 15.00 ft / 4.57 m
- Quarterdeck (15 %): 15.00 ft / 4.57 m
- Stern: 15.00 ft / 4.57 m
- Average freeboard: 15.91 ft / 4.85 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 69.2 %
- Above water (accommodation/working, high = better): 116.8 %
Waterplane Area: 18,081 Square feet or 1,680 Square metres
Displacement factor (Displacement / loading): 105 %
Structure weight / hull surface area: 134 lbs/sq ft or 653 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 2.41
- Overall: 1.04
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily

Transferred to the Philippines; subsequently transferred to Poland.

(Historical data)

Huascar (ex- BNS Babur, ex-RSAN Uruguay) Sunk July 31st, 1937



Huascar, Peruvian (ex-Indian, ex-SAE) Battleship laid down 1908 (Engine 1931)

Displacement:
20,281 t light; 21,477 t standard; 23,637 t normal; 25,365 t full load

Dimensions: Length overall / water x beam x draught
552.44 ft / 547.90 ft x 83.66 ft (Bulges 91.86 ft) x 27.62 ft (normal load)
168.38 m / 167.00 m x 25.50 m (Bulges 28.00 m) x 8.42 m

Armament:
8 - 12.01" / 305 mm guns (4x2 guns), 865.70lbs / 392.67kg shells, 1908 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 6.00" / 152 mm guns (6x2 guns), 108.00lbs / 48.99kg shells, 1926 Model
Breech loading guns in turrets (on barbettes)
on side, evenly spread
12 - 3.00" / 76.2 mm guns (6x2 guns), 13.50lbs / 6.12kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
16 - 0.98" / 25.0 mm guns (8x2 guns), 0.48lbs / 0.22kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 8,391 lbs / 3,806 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.6" / 320 mm 323.26 ft / 98.53 m 10.99 ft / 3.35 m
Ends: 5.91" / 150 mm 224.61 ft / 68.46 m 10.99 ft / 3.35 m
Upper: 7.87" / 200 mm 323.26 ft / 98.53 m 8.01 ft / 2.44 m
Main Belt covers 91 % of normal length

- Torpedo Bulkhead and Bulges:
2.36" / 60 mm 323.26 ft / 98.53 m 25.98 ft / 7.92 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.8" / 300 mm 9.84" / 250 mm 11.8" / 300 mm
2nd: 5.91" / 150 mm 3.94" / 100 mm 5.91" / 150 mm
3rd: 0.79" / 20 mm - -
4th: 0.39" / 10 mm - -

- Armour deck: 4.72" / 120 mm, Conning tower: 11.81" / 300 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 51,351 shp / 38,308 Kw = 23.90 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 3,889 tons

Complement:
953 - 1,239

Cost:
£1.806 million / $7.224 million

Distribution of weights at normal displacement:
Armament: 1,049 tons, 4.4 %
Armour: 9,781 tons, 41.4 %
- Belts: 3,446 tons, 14.6 %
- Torpedo bulkhead: 734 tons, 3.1 %
- Armament: 2,475 tons, 10.5 %
- Armour Deck: 2,916 tons, 12.3 %
- Conning Tower: 210 tons, 0.9 %
Machinery: 1,536 tons, 6.5 %
Hull, fittings & equipment: 7,856 tons, 33.2 %
Fuel, ammunition & stores: 3,356 tons, 14.2 %
Miscellaneous weights: 60 tons, 0.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
36,195 lbs / 16,418 Kg = 41.8 x 12.0 " / 305 mm shells or 7.5 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 4.5 ft / 1.4 m
Roll period: 18.2 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.40
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.595
Length to Beam Ratio: 5.96 : 1
'Natural speed' for length: 23.41 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 25.75 ft / 7.85 m
- Forecastle (21 %): 16.40 ft / 5.00 m
- Mid (50 %): 16.40 ft / 5.00 m
- Quarterdeck (20 %): 16.40 ft / 5.00 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 17.19 ft / 5.24 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 74.4 %
- Above water (accommodation/working, high = better): 109.4 %
Waterplane Area: 33,369 Square feet or 3,100 Square metres
Displacement factor (Displacement / loading): 111 %
Structure weight / hull surface area: 163 lbs/sq ft or 796 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.41
- Overall: 1.01
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate

60 tons reserved for flag brdge and staff accommodations

(Historical data)

Atahualpa (former SAE Koning Frederik II) laid down 1912, rebuild 1927, transfered in September 1934. To China, 1943
Manco Capac (former SAE Koning Hendrick) laid down 1912, rebuild 1927, transfered in November 1934. To China, 1943

Displacement: 25.326 t light; 26.654 t standard (26.400 t officially); 28.598 t normal; 30.153 t full load

Dimensions: Length overall / water x beam x draught
646,62 ft / 639,76 ft x 93,50 ft x 27,89 ft (normal load)
197,09 m / 195,00 m x 28,50 m x 8,50 m

Armament:
10 - 13,78" / 350 mm guns (5x2 guns), 1.308,20lbs / 593,39kg shells, 1912 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 2 raised mounts - superfiring
12 - 5,91" / 150 mm guns in single mounts, 102,98lbs / 46,71kg shells, 1912 Model
Breech loading guns in casemate mounts
on side, all amidships
12 - 4,13" / 105 mm guns (6x2 guns), 35,32lbs / 16,02kg shells, 1924 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
16 - 1,57" / 40,0 mm guns (6 mounts), 1,95lbs / 0,88kg shells, 1923 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
24 - 0,79" / 20,0 mm guns (4x6 guns), 0,24lbs / 0,11kg shells, 1925 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 14.779 lbs / 6.703 kg
Shells per gun, main battery: 90

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13,8" / 350 mm 409,68 ft / 124,87 m 14,11 ft / 4,30 m
Ends: 5,91" / 150 mm 131,23 ft / 40,00 m 7,55 ft / 2,30 m
98,85 ft / 30,13 m Unarmoured ends
Upper: 7,87" / 200 mm 262,47 ft / 80,00 m 7,05 ft / 2,15 m
Main Belt covers 99% of normal length

- Torpedo Bulkhead:
1,57" / 40 mm 409,68 ft / 124,87 m 13,78 ft / 4,20 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11,8" / 300 mm 7,87" / 200 mm 11,0" / 280 mm
2nd: 5,91" / 150 mm - -
3rd: 0,98" / 25 mm - -
4th: 0,59" / 15 mm - -
5th: 0,39" / 10 mm - -

- Armour deck: 3,15" / 80 mm, Conning tower: 1,97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 80.428 shp / 60.000 Kw = 26,45 kts
Range 7.600nm at 15,00 kts
Bunker at max displacement = 3.499 tons

Complement:
1.099 - 1.429

Cost:
£2,794 million / $11,174 million

Distribution of weights at normal displacement:
Armament: 1.847 tons, 6,5%
Armour: 10.157 tons, 35,5%
- Belts: 4.396 tons, 15,4%
- Torpedo bulkhead: 329 tons, 1,2%
- Armament: 2.843 tons, 9,9%
- Armour Deck: 2.549 tons, 8,9%
- Conning Tower: 40 tons, 0,1%
Machinery: 2.539 tons, 8,9%
Hull, fittings & equipment: 10.733 tons, 37,5%
Fuel, ammunition & stores: 3.272 tons, 11,4%
Miscellaneous weights: 50 tons, 0,2%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
33.495 lbs / 15.193 Kg = 25,6 x 13,8 " / 350 mm shells or 4,9 torpedoes
Stability (Unstable if below 1.00): 1,09
Metacentric height 5,3 ft / 1,6 m
Roll period: 17,0 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0,62
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0,600
Length to Beam Ratio: 6,84 : 1
'Natural speed' for length: 25,29 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 51
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: 25,59 ft / 7,80 m
- Forecastle (22%): 24,93 ft / 7,60 m (17,06 ft / 5,20 m aft of break)
- Mid (50%): 17,06 ft / 5,20 m
- Quarterdeck (15%): 17,06 ft / 5,20 m
- Stern: 17,06 ft / 5,20 m
- Average freeboard: 18,85 ft / 5,75 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 98,5%
- Above water (accommodation/working, high = better): 129,4%
Waterplane Area: 43.752 Square feet or 4.065 Square metres
Displacement factor (Displacement / loading): 95%
Structure weight / hull surface area: 179 lbs/sq ft or 875 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,23
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

(Historical data)

Almirante Grau - Retired
Coronel Bolognesi - Retired

SIM by Hrolf Hakonson

Peruvian Almirante Grau-class Light Cruiser laid down 1905 (Engine 1925)

Displacement:
2,964 t light; 3,077 t standard; 3,220 t normal; 3,334 t full load

Dimensions: Length overall / water x beam x draught
376.88 ft / 375.00 ft x 40.50 ft x 14.00 ft (normal load)
114.87 m / 114.30 m x 12.34 m x 4.27 m

Armament:
4 - 6.00" / 152 mm guns (2x2 guns), 108.00lbs / 48.99kg shells, 1925 Model
Quick firing guns in deck mounts with hoists
on centreline ends, evenly spread
6 - 3.00" / 76.2 mm guns in single mounts, 14.00lbs / 6.35kg shells, 1905 Model
Quick firing guns in deck mounts
on side, evenly spread
8 - 1.18" / 30.0 mm guns in single mounts, 1.00lbs / 0.45kg shells, 1905 Model
Quick firing guns in deck mounts
on side, evenly spread
4 guns in hull casemates - Limited use in all but light seas
1 - 3.00" / 76.2 mm guns in single mounts, 14.00lbs / 6.35kg shells, 1925 Model
Anti-aircraft gun in deck mount
on centreline aft

Weight of broadside 538 lbs / 244 kg
Shells per gun, main battery: 150

2 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.00" / 76 mm - -
2nd: 2.00" / 51 mm - -
4th: 1.00" / 25 mm - -

- Armour deck: 1.50" / 38 mm, Conning tower: 3.00" / 76 mm

Machinery:
Oil fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 22,419 ihp / 16,724 Kw = 26.00 kts
Range 3,700nm at 10.00 kts (Bunkerage = 257 tons)

Complement:
213 - 277

Cost:
£0.336 million / $1.342 million

Distribution of weights at normal displacement:
Armament: 67 tons, 2.1 %
Armour: 358 tons, 11.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 55 tons, 1.7 %
- Armour Deck: 289 tons, 9.0 %
- Conning Tower: 14 tons, 0.4 %
Machinery: 1,256 tons, 39.0 %
Hull, fittings & equipment: 1,259 tons, 39.1 %
Fuel, ammunition & stores: 255 tons, 7.9 %
Miscellaneous weights: 25 tons, 0.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,842 lbs / 835 Kg = 17.1 x 6.0 " / 152 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.22
Metacentric height 1.9 ft / 0.6 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.41
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.530
Length to Beam Ratio: 9.26 : 1
'Natural speed' for length: 19.36 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 58
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: 21.50 ft / 6.55 m
- Forecastle (10 %): 20.50 ft / 6.25 m
- Mid (20 %): 20.50 ft / 6.25 m (13.50 ft / 4.11 m aft of break)
- Quarterdeck (20 %): 13.50 ft / 4.11 m
- Stern: 13.50 ft / 4.11 m
- Average freeboard: 14.94 ft / 4.55 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 150.2 %
- Above water (accommodation/working, high = better): 134.9 %
Waterplane Area: 10,403 Square feet or 966 Square metres
Displacement factor (Displacement / loading): 92 %
Structure weight / hull surface area: 71 lbs/sq ft or 346 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 2.03
- Overall: 1.06

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

(Historical data)

Piura (ex-RSAN Nampula) - Sunk 1937 Peruvian Crisis
Arequipa (ex-Ancash, ex-RSAN Oudtshoorn) - Scrapped

(Arequipa re-named 1942, used for training duties; scrapped 1945)

SIM By HoOmAn


Displacement:
3.961 t light; 4.110 t standard; 4.497 t normal; 4.789 t full load
Loading submergence 312 tons/feet

Dimensions:
428,15 ft x 42,65 ft x 18,54 ft (normal load)
130,50 m x 13,00 m x 5,65 m

Armament:
6 - 5,91" / 150 mm guns
4 - 3,46" / 88 mm guns
6 - 1,57" / 40 mm AA guns
8 - 0,79" / 20 mm guns
Weight of broadside 715 lbs / 324 kg
6 - 21,0" / 533 mm above water torpedoes

Armour:
Belt 1,97" / 50 mm, ends unarmoured
Belts cover 143% of normal area
Main gun shields 1,57" / 40 mm, 2nd gun shields 0,98" / 25 mm
AA gun shields 0,98" / 25 mm
Armour deck 1,18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 53.619 shp / 40.000 Kw = 31,31 kts
Range 7.500nm at 12,00 kts

Complement:
274 - 356

Cost:
£1,420 million / $5,681 million

Distribution of weights at normal displacement:
Armament: 89 tons, 2,0%
Armour: 517 tons, 11,5%
Belts: 252 tons, 5,6%, Armament: 27 tons, 0,6%, Armour Deck: 239 tons, 5,3%
Conning Tower: 0 tons, 0,0%, Torpedo bulkhead: 0 tons, 0,0%
Machinery: 1.756 tons, 39,0%
Hull, fittings & equipment: 1.599 tons, 35,5%
Fuel, ammunition & stores: 536 tons, 11,9%
Miscellaneous weights: 0 tons, 0,0%

Metacentric height 1,8

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

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,13
Shellfire needed to sink: 2.515 lbs / 1.141 Kg = 24,4 x 5,9 " / 150 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0,6
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 70 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,29
Relative quality as seaboat: 1,01

Hull form characteristics:
Block coefficient: 0,465
Sharpness coefficient: 0,32
Hull speed coefficient 'M': 7,93
'Natural speed' for length: 20,69 kts
Power going to wave formation at top speed: 62 %
Trim: 70
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 141,7%
Relative accommodation and working space: 94,6%
(Average = 100%)
Displacement factor: 94%
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,93
(Structure weight / hull surface area: 77 lbs / square foot or 375 Kg / square metre)
Relative longitudinal hull strength: 1,84
(for 16,08 ft / 4,90 m average freeboard, freeboard adjustment 3,17 ft)
Relative composite hull strength: 1,00

(Historical data)

Callao (Ex-ARA Sarmiento) - scrapped 1938-39

Guns + parts used for Lima and Callao heavy cruisers

Callao (ex Argentine Sarmiento)
Conversion by Hrolf

Callao, Peruvian Armored Cruiser laid down 1906 (Engine 1931)

Displacement:
12,976 t light; 13,830 t standard; 15,482 t normal; 16,804 t full load

Dimensions: Length overall / water x beam x draught
550.27 ft / 547.90 ft x 75.00 ft x 25.75 ft (normal load)
167.72 m / 167.00 m x 22.86 m x 7.85 m

Armament:
6 - 8.00" / 203 mm guns (2x3 guns), 256.00lbs / 116.12kg shells, 1931 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
8 - 8.00" / 203 mm guns (4x2 guns), 256.00lbs / 116.12kg shells, 1931 Model
Breech loading guns in turrets (on barbettes)
on side ends, evenly spread
14 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1931 Model
Breech loading guns in casemate mounts
on side, evenly spread
12 guns in hull casemates - Limited use in heavy seas
8 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1931 Model
Dual purpose guns in deck mounts
on side, evenly spread, 6 raised mounts
16 - 0.98" / 25.0 mm guns (8x2 guns), 0.48lbs / 0.22kg shells, 1931 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 5,200 lbs / 2,359 kg
Shells per gun, main battery: 170

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7.00" / 178 mm 320.00 ft / 97.54 m 10.50 ft / 3.20 m
Ends: 4.00" / 102 mm 209.00 ft / 63.70 m 10.39 ft / 3.17 m
18.90 ft / 5.76 m Unarmoured ends
Upper: 3.00" / 76 mm 320.00 ft / 97.54 m 8.00 ft / 2.44 m
Main Belt covers 90 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.00" / 203 mm 4.50" / 114 mm 8.00" / 203 mm
2nd: 6.00" / 152 mm 4.00" / 102 mm 6.00" / 152 mm
3rd: 3.00" / 76 mm - 3.00" / 76 mm
4th: 1.50" / 38 mm - -
5th: 1.00" / 25 mm - -

- Armour deck: 2.50" / 64 mm, Conning tower: 8.00" / 203 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 77,771 shp / 58,017 Kw = 28.75 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 2,974 tons

Complement:
693 - 902

Cost:
£1.330 million / $5.320 million

Distribution of weights at normal displacement:
Armament: 650 tons, 4.2 %
Armour: 4,274 tons, 27.6 %
- Belts: 1,690 tons, 10.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1,197 tons, 7.7 %
- Armour Deck: 1,280 tons, 8.3 %
- Conning Tower: 107 tons, 0.7 %
Machinery: 2,357 tons, 15.2 %
Hull, fittings & equipment: 5,696 tons, 36.8 %
Fuel, ammunition & stores: 2,505 tons, 16.2 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
20,713 lbs / 9,395 Kg = 80.9 x 8.0 " / 203 mm shells or 2.4 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 4.4 ft / 1.4 m
Roll period: 15.0 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.48
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.512
Length to Beam Ratio: 7.31 : 1
'Natural speed' for length: 23.41 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27.07 ft / 8.25 m
- Forecastle (20 %): 21.49 ft / 6.55 m
- Mid (65 %): 21.49 ft / 6.55 m
- Quarterdeck (15 %): 14.50 ft / 4.42 m
- Stern: 14.50 ft / 4.42 m
- Average freeboard: 20.19 ft / 6.15 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.0 %
- Above water (accommodation/working, high = better): 155.3 %
Waterplane Area: 27,681 Square feet or 2,572 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 135 lbs/sq ft or 657 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.81
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent

(Historical data)

Colonel Bolognesi (ex-Indian Colombo C-12) - Rebuild/service - to China, 1942



As Refitted, 1927-1929

laid down 1917

Length, 152.4 m x Beam, 15.2 m x Depth, 4.6 m
5158 tonnes normal displacement (4561 tonnes standard)

Main battery: 6 x 15.0-cm (3x2 deck mount w/hoist)
Secondary battery: 4 x 10.5-cm (1x2, 2x1)
AA battery: 6 x 3.5-cm (6x1)
Light battery: 8 x 1.5-cm (2x4)

Weight of broadside: 349 kg

8 TT, 55.0 cm (2x4)

Main belt, 7.5 cm; ends unarmored
Armor deck, average 3.5 cm
Conning tower, 7.5 cm

Battery armor:
Main, 5.0 cm shields / secondary, 3.0 cm
AA, 2.0 cm shields / light guns, 2.0 cm shields

Maximum speed for 30006 shaft kw = 29.02 knots
Approximate cruising radius, 9000 nm / 12 knots

Typical complement: 304-396


Estimated cost, $3.205 million (£801,000)

Remarks:

Oil firing.

Relative extent of belt armor, 110 percent of 'typical' coverage.

Ship has slow, easy roll; a good, steady gun platform.

Main deck secondary guns subject to being washed down
in a seaway.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 96 tonnes = 2 pct
Armor, total ..................... 814 tonnes = 16 pct

Belt 366 tonnes = 7 pct
Deck 389 tonnes = 8 pct
C.T. 19 tonnes = 0 pct
Armament 40 tonnes = 1 pct

Machinery ........................ 1474 tonnes = 29 pct
Hull and fittings; equipment ..... 1934 tonnes = 38 pct
Fuel, ammunition, stores ......... 764 tonnes = 15 pct
Miscellaneous weights ............ 75 tonnes = 1 pct
-----
5158 tonnes = 100 pct

Estimated metacentric height, 0.8 m

Displacement summary:

Light ship: 4394 tonnes
Standard displacement: 4561 tonnes
Normal service: 5158 tonnes
Full load: 5615 tonnes

Loading submergence 1428 tonnes/metre

+++++++++++++++++++++++++


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.27

Shellfire needed to sink: 2533 kg = 54.1 x 15.0-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 1.1
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 72 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.16

Relative quality as a seaboat: 1.14

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.48
Sharpness coefficient: 0.32
Hull speed coefficient 'M' = 8.85
'Natural speed' for length = 22.4 knots
Power going to wave formation
at top speed: 54 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 109 percent

Relative accommodation and working space: 110 percent


Displacement factor: 112 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.99
(Structure weight per square
metre of hull surface: 385 kg)

Relative longitudinal hull strength: 1.12
(for 4.60 m average freeboard;
freeboard adjustment +0.56 m)

Relative composite hull strength: 1.01

+++++++++++++++++++++++++


[Machine-readable parameters: Spring Style v. 1.2.1]

499.87 x 49.86 x 15.09; 15.09 -- Dimensions
0.48 -- Block coefficient
1917 -- Year laid down
29.02 / 9000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
75 tons -- Miscellaneous weights
++++++++++
6 x 5.91; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
4 x 4.13; 0 -- Secondary battery; turrets
Main deck battery
:
6 x 1.38 -- Tertiary (QF/AA) battery
Gun-shields
:
8 x 0.59 -- Fourth (light) battery
8 / 0 / 21.65 -- TT / submerged / size
++++++++++
2.95 / 0.00 / 0.00 / 0.00; 110 -- Belt armor; relative extent
1.38 / 2.95 -- Deck / CT
1.97 / 1.18 / 0.79 / 0.79 -- Battery armor


(Note: For portability, values are stored in Anglo-American units)

(Historical data)



Almirante Guise,(former Indian CL Sittwe) AAA escort - to China, 1942
Almirante Tucker,(former Indian CL Pondicherry) AAA escort - to China, 1942

Ex- Indian CL Sittwe and later the Pondicherry will be refitted to this before delivery. SIM is by Howard. Engine stays the same but armament is changed.

Almirante Guise,(former Indian CL Sittwe) Peru AAA escort laid down 1917 (Engine 1926)
Almirante Tucker,(former Indian CL Pondicherry) Peru AAA escort laid down 1917 (Engine 1926)

Displacement:
3,533 t light; 3,689 t standard; 4,264 t normal; 4,724 t full load

Dimensions: Length overall / water x beam x draught
440.35 ft / 423.23 ft x 45.93 ft x 17.06 ft (normal load)
134.22 m / 129.00 m x 14.00 m x 5.20 m

Armament:
6 - 5.00" / 127 mm guns (3x2 guns), 62.50lbs / 28.35kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward
16 - 1.46" / 37.0 mm guns (4x4 guns), 1.55lbs / 0.70kg shells, 1932 Model
Anti-aircraft guns in deck mounts with hoists
on side, all amidships
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 404 lbs / 183 kg
Shells per gun, main battery: 300
10 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.95" / 75 mm 1.57" / 40 mm 1.57" / 40 mm
2nd: 0.79" / 20 mm 0.79" / 20 mm 0.79" / 20 mm
3rd: 0.79" / 20 mm 0.79" / 20 mm -

- Armour deck: 1.57" / 40 mm, Conning tower: 3.94" / 100 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 38,023 shp / 28,365 Kw = 29.00 kts
Range 12,000nm at 12.00 kts
Bunker at max displacement = 1,036 tons

Complement:
263 - 342

Cost:
£0.612 million / $2.447 million

Distribution of weights at normal displacement:
Armament: 50 tons, 1.2 %
Armour: 438 tons, 10.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 54 tons, 1.3 %
- Armour Deck: 361 tons, 8.5 %
- Conning Tower: 22 tons, 0.5 %
Machinery: 1,217 tons, 28.5 %
Hull, fittings & equipment: 1,627 tons, 38.2 %
Fuel, ammunition & stores: 732 tons, 17.2 %
Miscellaneous weights: 200 tons, 4.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,800 lbs / 2,177 Kg = 76.8 x 5.0 " / 127 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 2.2 ft / 0.7 m
Roll period: 13.0 seconds
Steadiness - As gun platform (Average = 50 %): 64 %
- Recoil effect (Restricted arc if above 1.00): 0.24
Seaboat quality (Average = 1.00): 1.28

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.450
Length to Beam Ratio: 9.21 : 1
'Natural speed' for length: 20.57 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.64 ft / 6.90 m
- Forecastle (20 %): 16.73 ft / 5.10 m
- Mid (50 %): 16.73 ft / 5.10 m
- Quarterdeck (15 %): 16.73 ft / 5.10 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 17.18 ft / 5.24 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 108.0 %
- Above water (accommodation/working, high = better): 97.0 %
Waterplane Area: 12,400 Square feet or 1,152 Square metres
Displacement factor (Displacement / loading): 123 %
Structure weight / hull surface area: 73 lbs/sq ft or 358 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.28
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily

200 tons for sonar, radar, and floatplane

(Historical data)

DM-1, Peru minelayer laid down 1936

DM-1 laid down 1936 (Scrapped 3Q48)
DM-2 laid down 1936 (Scrapped 3Q48)
DM-3 laid down 1936 (Scrapped 3Q48)

Displacement: 365 t light; 379 t standard; 395 t normal; 408 t full load

Dimensions: Length overall / water x beam x draught
137.80 ft / 137.80 ft x 23.98 ft x 8.20 ft (normal load)
42.00 m / 42.00 m x 7.31 m x 2.50 m

Armament:
1 - 4.33" / 110 mm guns in single mounts, 40.61lbs / 18.42kg shells, 1936 Model
Dual purpose gun in a deck mount with hoist
on centreline forward
4 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 42 lbs / 19 kg
Shells per gun, main battery: 250

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 - -

Machinery:
No fuel, Internal combustion motors,
Direct drive, 2 shafts, 1,065 shp / 794 Kw = 15.00 kts
Range 2,000nm at 10.00 kts
Bunker at max displacement = 29 tons

Complement:
43 - 57

Cost: £0.090 million / $0.362 million

Distribution of weights at normal displacement:
Armament: 5 tons, 1.3 %
Armour: 3 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 0 tons, 0.0 %
Hull, fittings & equipment: 256 tons, 64.9 %
Fuel, ammunition & stores: 30 tons, 7.5 %
Miscellaneous weights: 100 tons, 25.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,182 lbs / 536 Kg = 29.1 x 4.3 " / 110 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.00
Metacentric height 0.6 ft / 0.2 m
Roll period: 13.2 seconds
Steadiness - As gun platform (Average = 50 %): 38 %
- Recoil effect (Restricted arc if above 1.00): 0.21
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.510
Length to Beam Ratio: 5.75 : 1
'Natural speed' for length: 11.74 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 29
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: 13.45 ft / 4.10 m
- Forecastle (15 %): 9.19 ft / 2.80 m
- Mid (55 %): 9.19 ft / 2.80 m (8.20 ft / 2.50 m aft of break)
- Quarterdeck (15 %): 8.37 ft / 2.55 m
- Stern: 8.37 ft / 2.55 m
- Average freeboard: 9.05 ft / 2.76 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 39.6 %
- Above water (accommodation/working, high = better): 86.6 %
Waterplane Area: 2,222 Square feet or 206 Square metres
Displacement factor (Displacement / loading): 272 %
Structure weight / hull surface area: 66 lbs/sq ft or 324 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.64
- Longitudinal: 9.76
- Overall: 1.96
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped

Carries 40 mines. Also capable of minesweeping operations.

(Historical data)

First of this German-designed class began construction in 1934.

DD Ancon laid down 1934
DD Mollendo laid down 1935
DD Tacna laid down 1936
DD Tumbes laid down 1936
DD Trujillo laid down 1936
DD Puno laid down 1939
DD Iquitos laid down 1940
DD Arequipa laid down 1940

Displacement: 987 t light; 1,039 t standard; 1,139 t normal; 1,218 t full load

Dimensions: Length overall / water x beam x draught

323.74 ft / 311.68 ft x 29.53 ft x 10.83 ft (normal load) [98.68 m / 95.00 m x 9.00 m x 3.30 m]

Armament:

6 - 4.13" / 105 mm guns (3x2 guns), 35.32lbs / 16.02kg shells, 1932 Model Dual purpose guns in deck mounts on centerline ends, majority forward, 1 raised mount - superfiring
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1932 Model Anti-aircraft guns in deck mount on centerline aft, all raised guns - superfiring
4 - 0.98" / 25.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1932 Model Anti-aircraft guns in deck mounts on side ends, evenly spread
Weight of broadside 216 lbs / 98 kg
Shells per gun, main battery: 240
4 - 21.0" / 533 mm above water torpedoes

Armor:

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

Machinery: Oil fired boilers, steam turbines, Geared drive, 2 shafts, 28,150 shp / 21,000 Kw = 33.50 kts
Range 3,000nm at 15.00 kts
Bunker at max displacement = 179 tons

Complement: 97 - 127

Cost: £0.614 million / $2.454 million

Distribution of weights at normal displacement:

Armament: 27 tons, 2.4 %
Armor: 16 tons, 1.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 16 tons, 1.4 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 555 tons, 48.8 %
Hull, fittings & equipment: 364 tons, 31.9 %
Fuel, ammunition & stores: 151 tons, 13.3 %
Miscellaneous weights: 25 tons, 2.2 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 358 lbs / 162 Kg = 10.1 x 4.1 " / 105 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.40
Metacentric height 1.5 ft / 0.4 m
Roll period: 10.3 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.26
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:

Hull has rise forward of midbreak and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.56: 1
'Natural speed' for length: 20.33 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.04 ft / 5.50 m
- Forecastle (20 %): 18.04 ft / 5.50 m
- Mid (35 %): 18.04 ft / 5.50 m (11.48 ft / 3.50 m aft of break)
- Quarterdeck (15 %): 11.48 ft / 3.50 m
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 13.78 ft / 4.20 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 179.0 %
- Above water (accommodation/working, high = better): 105.2 %
Waterplane Area: 5,879 Square feet or 546 Square meters
Displacement factor (Displacement / loading): 59 %
Structure weight / hull surface area: 30 lbs/sq ft or 146 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.50
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate

5 tons reserved for depth charges and rails

20 tons reserved for mines and growth


Sold to China and transferred in 4th Quarter of 1948

(Historical data)

Capitan Valdes, Peruvian Destroyer laid down 1931
Capitan Hernandez, Peruvian Destroyer laid down 1931
Teniente Galvez, Peruvian Destroyer laid down 1933
Teniente Ferre, Peruvian Destroyer laid down 1933
Teniente Palacios, Peruvian Destroyer laid down 1933
Teniente Rodriguez, Peruvian Destroyer laid down 1935
Capitan Aguierre, Peruvian Destroyer laid down 1939
Capitan Carvajal, Peruvian Destroyer laid down 1940

Displacement: 1,877 t light; 1,956 t standard; 2,120 t normal; 2,251 t full load

Dimensions: Length overall / water x beam x draught

390.58 ft / 380.58 ft x 37.73 ft x 12.30 ft (normal load) [119.05 m / 116.00 m x 11.50 m x 3.75 m]

Armament:

4 - 5.91" / 150 mm guns in single mounts, 100.31lbs / 45.50kg shells, 1931 Model Breech loading guns in deck mounts with hoists on centerline ends, evenly spread, 2 raised mounts - superfiring
1 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1931 Model Anti-aircraft gun in deck mount on centerline amidships, 1 raised gun
8 - 0.98" / 25.0 mm guns (4x2 guns), 0.48lbs / 0.22kg shells, 1931 Model Breech loading guns in deck mounts on side ends, evenly spread
Weight of broadside 426 lbs / 193 kg
Shells per gun, main battery: 150
8 - 21.0" / 533 mm above water torpedoes

Armor:

Gun armor: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
2nd: 0.79" / 20 mm - -

Conning tower: 1.97" / 50 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 43,287 shp / 32,292 Kw = 34.50 kts
Range 5,500nm at 12.00 kts
Bunker at max displacement = 295 tons

Complement: 156 - 203

Cost: £1.124 million / $4.494 million

Distribution of weights at normal displacement:

Armament: 55 tons, 2.6 %
Armor: 32 tons, 1.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 25 tons, 1.2 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 7 tons, 0.3 %
Machinery: 1,042 tons, 49.2 %
Hull, fittings & equipment: 718 tons, 33.9 %
Fuel, ammunition & stores: 243 tons, 11.4 %
Miscellaneous weights: 30 tons, 1.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 637 lbs / 289 Kg = 6.2 x 5.9 " / 150 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.28
Metacentric height 1.8 ft / 0.5 m
Roll period: 11.8 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.55
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:

Hull has rise forward of midbreak and transom stern
Block coefficient: 0.420
Length to Beam Ratio: 10.09: 1
'Natural speed' for length: 22.48 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.97 ft / 7.00 m
- Forecastle (20 %): 19.69 ft / 6.00 m
- Mid (40 %): 19.69 ft / 6.00 m (14.44 ft / 4.40 m aft of break)
- Quarterdeck (15 %): 14.44 ft / 4.40 m
- Stern: 14.44 ft / 4.40 m
- Average freeboard: 16.80 ft / 5.12 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 179.9 %
- Above water (accommodation/working, high = better): 112.3 %
Waterplane Area: 9,293 Square feet or 863 Square meters
Displacement factor (Displacement / loading): 69 %
Structure weight / hull surface area: 40 lbs/sq ft or 195 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.05
- Overall: 0.57
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate


Sold to China and transferred in 4th Quarter of 1948

(Historical Data)

Independencia Class Heavy Destroyers

First laid down at the end of 1934. Will take place of Destroyer Flotilla leaders and the niche of the 3500-5000 tons cruisers in this fleet.

Independencia : laid down 1934 (Scrapped 3Q48)
Union : laid down 1935 (Scrapped 3Q48)
Confederacion (ex-Libertad) : laid down 1939
Republica : laid down 1940

Displacement: 2,851 t light; 2,979 t standard; 3,288 t normal; 3,536 t full load

Dimensions: Length overall / water x beam x draught

483.15 ft / 465.88 ft x 44.29 ft x 13.94 ft (normal load) [147.26 m / 142.00 m x 13.50 m x 4.25 m]

Armament:

6 - 5.91" / 150 mm guns (3x2 guns), 102.98lbs / 46.71kg shells, 1933 Model Breech loading guns in deck mounts with hoists on centreline ends, majority forward, 1 raised mount - superfiring
4 - 3.46" / 88.0 mm guns (2x2 guns), 20.79lbs / 9.43kg shells, 1933 Model Dual purpose guns in deck mounts on centreline, all aft, all raised mounts - superfiring
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1933 Model Anti-aircraft guns in deck mounts on side, evenly spread
8 - 0.98" / 25.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1933 Model Machine guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 715 lbs / 324 kg
Shells per gun, main battery: 150
10 - 21.0" / 533 mm above water torpedoes

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 2.76" / 70 mm 1.57" / 40 mm 2.76" / 70 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm -
3rd: 0.79" / 20 mm 0.79" / 20 mm -
4th: 0.39" / 10 mm 0.39" / 10 mm -

Conning tower: 2.76" / 70 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 60,758 shp / 45,325 Kw = 36.00 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 557 tons

Complement: 216 - 282

Cost: £1.889 million / $7.557 million

Distribution of weights at normal displacement:
Armament: 89 tons, 2.7 %
Armour: 80 tons, 2.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 66 tons, 2.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 13 tons, 0.4 %
Machinery: 1,605 tons, 48.8 %
Hull, fittings & equipment: 1,036 tons, 31.5 %
Fuel, ammunition & stores: 438 tons, 13.3 %
Miscellaneous weights: 40 tons, 1.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship): 941 lbs / 427 Kg = 9.1 x 5.9 " / 150 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.37
Metacentric height 2.6 ft / 0.8 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.43
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:

Hull has rise forward of midbreak and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.52 : 1
'Natural speed' for length: 24.86 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27.07 ft / 8.25 m
- Forecastle (20 %): 20.51 ft / 6.25 m
- Mid (45 %): 20.51 ft / 6.25 m (13.94 ft / 4.25 m aft of break)
- Quarterdeck (15 %): 13.94 ft / 4.25 m
- Stern: 13.94 ft / 4.25 m
- Average freeboard: 17.42 ft / 5.31 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 179.8 %
- Above water (accommodation/working, high = better): 127.6 %
Waterplane Area: 13,182 Square feet or 1,225 Square metres
Displacement factor (Displacement / loading): 75 %
Structure weight / hull surface area: 45 lbs/sq ft or 219 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.25
- Overall: 0.55
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

10 tons reserved for depth charges and rails

30 tons reserved for mines and growth


Destroyer Independencia - scrapping commenced 1 July 1948, completed 16 October 1948
Destroyer Union - scrapping commenced 1 July 1948, completed 16 October 1948
Destroyer Confederacion - scrapping commenced 1 October 1948, completed 16 January 1949
Destroyer Republica - scrapping commenced 1 October 1948, completed 16 January 1949

(Historical data)

Type P, Peruvian Submarine laid down 1931

P-1 laid down 1931 - Scrapped 1949
P-2 laid down 1931 - Scrapped 1949
P-3 laid down 1933 (sunk August 18 1937)
P-4 laid down 1933 - Scrapped 1949
P-5 laid down 1940 - (accidently sunk)

Displacement: 973 t light; 998 t standard; 1,081 t normal; 1,147 t full load

Dimensions: Length overall / water x beam x draught
228.02 ft / 226.38 ft x 24.61 ft x 14.76 ft (normal load)
69.50 m / 69.00 m x 7.50 m x 4.50 m

Armament:
1 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1931 Model
Quick firing gun in deck mount
on centreline aft
1 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1931 Model
Anti-aircraft gun in deck mount
on centreline forward
2 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1931 Model
Machine guns in deck mounts
on centreline, all amidships
Weight of broadside 38 lbs / 17 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:

- Conning tower: 0.79" / 20 mm

Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 2 shafts, 2,009 shp / 1,498 Kw = 16.00 kts
Range 6,000nm at 10.00 kts
Bunker at max displacement = 150 tons

Complement: 93 - 122

Cost: £0.203 million / $0.811 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0.4 %
Armour: 2 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 2 tons, 0.2 %
Machinery: 60 tons, 5.6 %
Hull, fittings & equipment: 686 tons, 63.5 %
Fuel, ammunition & stores: 108 tons, 10.0 %
Miscellaneous weights: 220 tons, 20.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
696 lbs / 315 Kg = 19.7 x 4.1 " / 105 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 0.7 ft / 0.2 m
Roll period: 12.0 seconds
Steadiness - As gun platform (Average = 50 %): 0 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 0.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.460
Length to Beam Ratio: 9.20 : 1
'Natural speed' for length: 15.05 kts
Power going to wave formation at top speed: 43 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 0.00 ft / 0.00 m
- Forecastle (20 %): 0.00 ft / 0.00 m
- Mid (50 %): 0.00 ft / 0.00 m
- Quarterdeck (15 %): 0.00 ft / 0.00 m
- Stern: 0.00 ft / 0.00 m
- Average freeboard: 0.00 ft / 0.00 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 81.9 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 3,583 Square feet or 333 Square metres
Displacement factor (Displacement / loading): 284 %
Structure weight / hull surface area: 130 lbs/sq ft or 634 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3.94
- Longitudinal: 2.29
- Overall: 2.62
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

4 tubes are forward, 2 aft. 8 reload torpedoes forward, 2 aft.

20 tons of the miscellaneous tonnage are for 10 reload torpedoes.