WesWorld

Repository for data pertaining to the subject. Warship designs considered by the Marina de Guerra but not adopted or proceeded with.

(Historical data)

This heavy cruiser/light battleship was a design put forward by the German military mission in 1932 as part of the proposed expansion of the Peruvian Navy during 1933 and 1934. The design, while indeed very powerful, was rejected due to some circles in the Ministry of the Navy were keen to purchase used capital ships as a way to increase the size of the fleet in short order. The purchases of the heavy cruiser Callao and the two South African dreadnaughts being the examples of that policy of the Naval Ministry during 1933 and 1934.

Cuzco, German designed Battlecruiser laid down 1933

Displacement: 25,047 t light; 26,205 t standard; 28,009 t normal; 29,452 t full load

Dimensions: Length overall / water x beam x draught

791.91 ft / 771.00 ft x 82.02 ft x 28.71 ft (normal load) [241.38 m / 235.00 m x 25.00 m x 8.75 m]

Armament:

9 - 12.01" / 305 mm guns (3x3 guns), 865.70lbs / 392.68kg shells, 1935 Model Breech loading guns in turrets (on barbettes) on centerline ends, majority forward, 1 raised mount - superfiring
16 - 4.72" / 120 mm guns (8x2 guns), 52.72lbs / 23.92kg shells, 1935 Model Dual purpose guns in deck mounts with hoists on side ends, evenly spread, 4 raised mounts - superfiring
2 - 4.72" / 120 mm guns (1x2 guns), 52.72lbs / 23.92kg shells, 1935 Model Dual purpose guns in a deck mount with hoist on centerline aft
16 - 1.38" / 35.0 mm guns (8x2 guns), 1.31lbs / 0.59kg shells, 1935 Model Anti-aircraft guns in deck mounts on side, evenly spread, 6 raised mounts
Weight of broadside 8,761 lbs / 3,974 kg
Shells per gun, main battery: 120

Armor:

Belts: Width (max) Length (avg) Height (avg)
Main: 12.6" / 320 mm 489.60 ft / 149.23 m 10.86 ft / 3.31 m
Ends: Unarmored
Main Belt covers 98 % of normal length

- Torpedo Bulkhead: 1.97" / 50 mm 489.60 ft / 149.23 m 26.18 ft / 7.98 m

Gun armor: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 13.8" / 350 mm 5.91" / 150 mm 12.6" / 320 mm
2nd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
3rd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
4th: 0.79" / 20 mm 0.39" / 10 mm -

Armor deck: 4.33" / 110 mm, Conning tower: 5.91" / 150 mm

Machinery:
Oil fired boilers, steam turbines, Geared drive, 4 shafts, 129,549 shp / 96,643 Kw = 32.00 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 3,246 tons

Complement: 1,082 - 1,407

Cost: £11.769 million / $47.077 million

Distribution of weights at normal displacement:

Armament: 1,095 tons, 3.9 %
Armor: 9,497 tons, 33.9 %
- Belts: 2,819 tons, 10.1 %
- Torpedo bulkhead: 934 tons, 3.3 %
- Armament: 1,981 tons, 7.1 %
- Armor Deck: 3,646 tons, 13.0 %
- Conning Tower: 117 tons, 0.4 %
Machinery: 3,680 tons, 13.1 %
Hull, fittings & equipment: 10,674 tons, 38.1 %
Fuel, ammunition & stores: 2,962 tons, 10.6 %
Miscellaneous weights: 100 tons, 0.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 38,033 lbs / 17,252 Kg = 43.9 x 12.0 " / 305 mm shells or 5.5 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 4.4 ft / 1.3 m
Roll period: 16.5 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.66
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:

Hull has a flush deck and transom stern
Block coefficient: 0.540
Length to Beam Ratio: 9.40: 1
'Natural speed' for length: 31.70 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.54 ft / 9.31 m
- Forecastle (21 %): 20.83 ft / 6.35 m
- Mid (50 %): 19.42 ft / 5.92 m
- Quarterdeck (16 %): 19.42 ft / 5.92 m
- Stern: 19.42 ft / 5.92 m
- Average freeboard: 20.74 ft / 6.32 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 97.0 %
- Above water (accommodation/working, high = better): 158.2 %
Waterplane Area: 45,508 Square feet or 4,228 Square meters
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 160 lbs/sq ft or 782 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.06
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

100 tons reserved for aircraft and growth.

(Historical data)

The Italian firm Ansaldo put forward this design in early 1933 to fill some requirements of the Peruvian Navy in their attempts to counter the perceived threats of their neighbor to the South. (1) The design was rejected, not to the fault of Ansaldo, but due to the difficulty for that company to design an adequate counter to the ships in question under the parameters put forward by the Peruvians.

Mollendo, Italian designed Heavy Cruiser laid down 1934

Displacement: 13,975 t light; 14,777 t standard; 16,467 t normal; 17,819 t full load

Dimensions: Length overall / water x beam x draught

579.40 ft / 557.74 ft x 78.74 ft x 26.25 ft (normal load) [176.60 m / 170.00 m x 24.00 m x 8.00 m]

Armament:

6 - 12.01" / 305 mm guns (2x3 guns), 865.70lbs / 392.68kg shells, 1934 Model Breech loading guns in turrets (on barbettes) on centerline ends, evenly spread
16 - 3.46" / 88.0 mm guns (8x2 guns), 20.79lbs / 9.43kg shells, 1934 Model Anti-aircraft guns in deck mounts with hoists on side, all amidships, 2 raised mounts - superfiring
44 - 0.98" / 25.0 mm guns (11x4 guns), 0.48lbs / 0.22kg shells, 1934 Model Anti-aircraft guns in deck mounts on side, evenly spread, 7 raised mounts
Weight of broadside 5,548 lbs / 2,516 kg
Shells per gun, main battery: 150

Armor:

Belts: Width (max) Length (avg) Height (avg)
Main: 5.91" / 150 mm 328.08 ft / 100.00 m 9.84 ft / 3.00 m
Ends: Unarmored
Main Belt covers 90 % of normal length

Gun armor: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.6" / 270 mm 7.48" / 190 mm 8.27" / 210 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm -
3rd: 0.39" / 10 mm 0.39" / 10 mm -

Armor deck: 2.76" / 70 mm, Conning tower: 7.48" / 190 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 90,767 shp / 67,712 Kw = 31.00 kts
Range 11,000nm at 15.00 kts
Bunker at max displacement = 3,042 tons

Complement:
726 - 944

Cost:
£7.056 million / $28.222 million

Distribution of weights at normal displacement:

Armament: 693 tons, 4.2 %
Armor: 3,523 tons, 21.4 %
- Belts: 837 tons, 5.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1,030 tons, 6.3 %
- Armor Deck: 1,551 tons, 9.4 %
- Conning Tower: 104 tons, 0.6 %
Machinery: 2,611 tons, 15.9 %
Hull, fittings & equipment: 6,947 tons, 42.2 %
Fuel, ammunition & stores: 2,492 tons, 15.1 %
Miscellaneous weights: 200 tons, 1.2 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):
22,196 lbs / 10,068 Kg = 25.6 x 12.0 " / 305 mm shells or 2.5 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 4.3 ft / 1.3 m
Roll period: 15.9 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.57
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:

Hull has a flush deck and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 7.08: 1
'Natural speed' for length: 27.75 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.82 ft / 9.70 m
- Forecastle (22 %): 23.62 ft / 7.20 m
- Mid (60 %): 21.98 ft / 6.70 m
- Quarterdeck (10 %): 21.98 ft / 6.70 m
- Stern: 21.98 ft / 6.70 m
- Average freeboard: 23.38 ft / 7.13 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 85.8 %
- Above water (accommodation/working, high = better): 179.1 %
Waterplane Area: 30,429 Square feet or 2,827 Square meters
Displacement factor (Displacement / loading): 114 %
Structure weight / hull surface area: 151 lbs/sq ft or 735 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.41
- Overall: 1.02
Hull space for machinery, storage, compartmentation is adequate

(1) the Oyamas and Tyrol.

(Historical data)

A design put forward by the German military mission in 1933 at the same time as the Ansaldo cruiser. While considered better protected than the Italian one the small quantity of primary guns was the reason it was rejected. The requirements put forward by the Peruvian Navy for counters to the Chilean ships made very difficult for the firms involved to design ships that the Peruvians found adequate. Finally the project was shelved for the time being (1) and the tonnage being allocated for those ships being instead used for the politically inspired Almirante Grau. (2)

Almirante Villar, German designed Peruvian Large Cruiser laid down 1933

Displacement: 20,046 t light; 20,919 t standard; 22,598 t normal; 23,940 t full load

Dimensions: Length overall / water x beam x draught

710.73 ft / 688.98 ft x 82.84 ft x 25.43 ft (normal load) [216.63 m / 210.00 m x 25.25 m x 7.75 m]

Armament:

6 - 12.01" / 305 mm guns (3x2 mounts), 914.92lbs / 415.00kg shells, 1933 Model Breech loading guns in turrets (on barbettes) on centerline ends, majority forward, 1 raised mount - superfiring
16 - 4.13" / 105 mm guns (8x2 guns), 35.32lbs / 16.02kg shells, 1933 Model Dual purpose guns in deck mounts with hoists on side, evenly spread
2 - 4.13" / 105 mm guns (1x2 guns), 35.32lbs / 16.02kg shells, 1933 Model Dual purpose guns in a deck mount with hoist on centerline aft, all raised guns - superfiring
16 - 1.46" / 37.0 mm guns (8x2 guns), 1.55lbs / 0.70kg shells, 1933 Model Dual purpose guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 6,150 lbs / 2,790 kg
Shells per gun, main battery: 120

Armor:

Belts: Width (max) Length (avg) Height (avg)
Main: 9.45" / 240 mm 447.83 ft / 136.50 m 10.93 ft / 3.33 m
Ends: Unarmored
Main Belt covers 100 % of normal length

Torpedo Bulkhead: 1.18" / 30 mm 447.83 ft / 136.50 m 23.26 ft / 7.09 m

Gun armor: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.6" / 270 mm 5.91" / 150 mm 8.27" / 210 mm
2nd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
3rd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
4th: 0.79" / 20 mm 0.39" / 10 mm -

Armor deck: 3.54" / 90 mm, Conning tower: 9.45" / 240 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 4 shafts, 118,586 shp / 88,465 Kw = 32.00 kts
Range 8,500nm at 15.00 kts
Bunker at max displacement = 3,021 tons

Complement: 921 - 1,198

Cost: £8.510 million / $34.038 million

Distribution of weights at normal displacement:

Armament: 732 tons, 3.2 %
Armor: 6,595 tons, 29.2 %
- Belts: 1,962 tons, 8.7 %
- Torpedo bulkhead: 455 tons, 2.0 %
- Armament: 1,311 tons, 5.8 %
- Armor Deck: 2,705 tons, 12.0 %
- Conning Tower: 163 tons, 0.7 %
Machinery: 3,455 tons, 15.3 %
Hull, fittings & equipment: 9,104 tons, 40.3 %
Fuel, ammunition & stores: 2,552 tons, 11.3 %
Miscellaneous weights: 160 tons, 0.7 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 34,621 lbs / 15,704 Kg = 40.0 x 12.0 " / 305 mm shells or 4.8 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 4.7 ft / 1.4 m
Roll period: 16.0 seconds
Steadiness - As gun platform (Average = 50 %): 54 %
- Recoil effect (Restricted arc if above 1.00): 0.58
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:

Hull has a flush deck and transom stern
Block coefficient: 0.545
Length to Beam Ratio: 8.32: 1
'Natural speed' for length: 30.24 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.99 ft / 9.75 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (50 %): 22.97 ft / 7.00 m
- Quarterdeck (15 %): 22.97 ft / 7.00 m
- Stern: 22.97 ft / 7.00 m
- Average freeboard: 23.69 ft / 7.22 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 99.8 %
- Above water (accommodation/working, high = better): 196.0 %
Waterplane Area: 41,271 Square feet or 3,834 Square meters
Displacement factor (Displacement / loading): 116 %
Structure weight / hull surface area: 151 lbs/sq ft or 739 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.41
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

160 tons reserved for aircraft and growth.

(1) Until early 1935 when the idea was resurrected after the delivery of the South African ships.
(2) Seeing as a response to the Villas and as a way to repay the Iberian help to the Peruvian infrastructure.

(Historical data)

The heavily armed light cruiser was thought in Peruvian circles during late 1932 as way a cheap way to increase firepower to the growing fleet and this locally designed ship was put forward for consideration. The design was rejected due to many concerns with stability and seakeeping and finally the whole idea was shelved after it was decided to use resources to purchase ships abroad instead.


Almirante Guise, Peru light cruiser laid down 1933

Displacement: 6,766 t light; 7,099 t standard; 8,300 t normal; 9,261 t full load

Dimensions: Length overall / water x beam x draught

533.19 ft / 522.00 ft x 58.00 ft x 19.00 ft (normal load) [162.52 m / 159.11 m x 17.68 m x 5.79 m]

Armament:

12 - 5.91" / 150 mm guns (3x4 guns), 102.98lbs / 46.71kg shells, 1937 Model Breech loading guns in turrets (on barbettes) on centerline ends, majority forward, 1 raised mount - superfiring
8 - 3.46" / 88.0 mm guns (4x2 guns), 20.79lbs / 9.43kg shells, 1937 Model Dual purpose guns in deck mounts on side, all amidships
12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1937 Model Anti-aircraft guns in deck mounts with hoists on side, evenly spread, 2 raised mounts
20 - 0.98" / 25.0 mm guns (10x2 guns), 0.48lbs / 0.22kg shells, 1937 Model Anti-aircraft guns in deck mounts with hoists on side, evenly spread, 4 raised mounts
Weight of broadside 1,430 lbs / 649 kg
Shells per gun, main battery: 200
12 - 21.0" / 533.4 mm above water torpedoes

Armor:

Belts: Width (max) Length (avg) Height (avg)
Main: 3.46" / 88 mm 350.00 ft / 106.68 m 9.00 ft / 2.74 m
Ends: Unarmored
Main Belt covers 103 % of normal length

Gun armor: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.72" / 120 mm 1.97" / 50 mm 2.76" / 70 mm
2nd: 1.18" / 30 mm - -

Machinery:

Oil fired boilers, steam turbines, Geared drive, 4 shafts, 78,070 shp / 58,240 Kw = 33.00 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 2,163 tons

Complement: 434 - 565

Cost: £3.763 million / $15.052 million

Distribution of weights at normal displacement:

Armament: 179 tons, 2.2 %
Armor: 700 tons, 8.4 %
- Belts: 456 tons, 5.5 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 243 tons, 2.9 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 2,164 tons, 26.1 %
Hull, fittings & equipment: 3,674 tons, 44.3 %
Fuel, ammunition & stores: 1,534 tons, 18.5 %
Miscellaneous weights: 50 tons, 0.6 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 10,791 lbs / 4,895 Kg = 104.8 x 5.9 " / 150 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.22
Metacentric height 3.2 ft / 1.0 m
Roll period: 13.7 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.40
Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:

Hull has rise forward of midbreak and transom stern
Block coefficient: 0.505
Length to Beam Ratio: 9.00: 1
'Natural speed' for length: 26.28 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (30 %): 22.00 ft / 6.71 m
- Mid (50 %): 22.00 ft / 6.71 m (20.00 ft / 6.10 m aft of break)
- Quarterdeck (20 %): 19.00 ft / 5.79 m
- Stern: 19.00 ft / 5.79 m
- Average freeboard: 20.89 ft / 6.37 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 102.8 %
- Above water (accommodation/working, high = better): 137.8 %
Waterplane Area: 21,076 Square feet or 1,958 Square meters
Displacement factor (Displacement / loading): 128 %
Structure weight / hull surface area: 107 lbs/sq ft or 523 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 2.14
- Overall: 1.08
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

(Historical data)

Design put forward by the Indian military mission in early 1933 at the same as the German and Italian designs. Conversations between the Indian mission and Peruvian Naval officials continued even after this ship was rejected because of political considerations (1) and those conversations ended with the decision to build a modified Akbar for Peru in the middle of 1935. (2)

Atahualpa, Indian designed Peruvian battlecruiser type laid down 1934

Displacement: 17,657 t light; 18,581 t standard; 20,836 t normal; 22,639 t full load

Dimensions: Length overall / water x beam x draught

741.73 ft / 721.78 ft x 68.90 ft (Bulges 75.46 ft) x 25.26 ft (normal load) [226.08 m / 220.00 m x 21.00 m (Bulges 23.00 m) x 7.70 m]

Armament:

9 - 10.00" / 254 mm guns (3x3 guns), 500.00lbs / 226.80kg shells, 1937 Model Breech loading guns in turrets (on barbettes) on centerline ends, majority forward, 1 raised mount - superfiring
9 - 5.91" / 150 mm guns (3x3 guns), 102.98lbs / 46.71kg shells, 1937 Model Breech loading guns in turrets (on barbettes) on side, all amidships, 1 raised mount - superfiring
16 - 3.46" / 88.0 mm guns (8x2 guns), 20.79lbs / 9.43kg shells, 1937 Model Anti-aircraft guns in deck mounts with hoists on side, all amidships
24 - 1.57" / 40.0 mm guns (12x2 guns), 1.95lbs / 0.89kg shells, 1937 Model Anti-aircraft guns in deck mounts on side, evenly spread
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1937 Model Machine guns in deck mounts on side, evenly spread
Weight of broadside 5,810 lbs / 2,635 kg
Shells per gun, main battery: 150

Armor:

Belts: Width (max) Length (avg) Height (avg)
Main: 7.87" / 200 mm 475.72 ft / 145.00 m 10.20 ft / 3.11 m
Ends: Unarmored
Main Belt covers 101 % of normal length

Torpedo Bulkhead and Bulges: 1.38" / 35 mm 475.72 ft / 145.00 m 22.15 ft / 6.75 m

Gun armor: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7.87" / 200 mm 5.91" / 150 mm 7.87" / 200 mm
2nd: 3.15" / 80 mm 1.97" / 50 mm 3.15" / 80 mm
3rd: 1.18" / 30 mm - -
4th: 0.79" / 20 mm - -
5th: 0.79" / 20 mm - -

Armor deck: 3.94" / 100 mm, Conning tower: 7.87" / 200 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 4 shafts, 99,195 shp / 74,000 Kw = 31.16 kts
Range 20,000nm at 12.00 kts (Bunkerage = 4,057 tons)

Complement: 866 - 1,127

Cost: £8.798 million / $35.192 million

Distribution of weights at normal displacement:

Armament: 726 tons, 3.5 %
Armor: 6,077 tons, 29.2 %
- Belts: 1,583 tons, 7.6 %
- Torpedo bulkhead: 537 tons, 2.6 %
- Armament: 1,247 tons, 6.0 %
- Armor Deck: 2,582 tons, 12.4 %
- Conning Tower: 128 tons, 0.6 %
Machinery: 2,749 tons, 13.2 %
Hull, fittings & equipment: 7,954 tons, 38.2 %
Fuel, ammunition & stores: 3,179 tons, 15.3 %
Miscellaneous weights: 150 tons, 0.7 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 21,079 lbs / 9,561 Kg = 42.2 x 10.0 " / 254 mm shells or 2.8 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 3.4 ft / 1.0 m
Roll period: 17.1 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.65
Seaboat quality (Average = 1.00): 1.12

Hull form characteristics:

Hull has a flush deck and transom stern
Block coefficient: 0.530
Length to Beam Ratio: 9.57: 1
'Natural speed' for length: 30.66 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 54
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.87 ft / 8.80 m
- Forecastle (22 %): 19.69 ft / 6.00 m
- Mid (50 %): 19.69 ft / 6.00 m
- Quarterdeck (15 %): 19.69 ft / 6.00 m
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 20.49 ft / 6.25 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 100.5 %
- Above water (accommodation/working, high = better): 153.5 %
Waterplane Area: 35,447 Square feet or 3,293 Square meters
Displacement factor (Displacement / loading): 119 %
Structure weight / hull surface area: 143 lbs/sq ft or 697 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.06
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

(1) The alliance between Iberia and Peru was very new still and it was decided not to order this ship so not to create friction with Iberia due to India being a member of Satsuma.
(2) The Almirante Villar.

(Historical data)

This escort cruiser was planned but never laid down. The four main gun turrets remain in storage for future use.

Lima-class Coastal Defense Cruiser

-Lima - laid down 1939

Displacement: 7,510 t light; 7,869 t standard; 8,422 t normal; 8,864 t full load

Dimensions: Length overall / water x beam x draught

557.00 ft / 557.00 ft x 60.00 ft x 18.00 ft (normal load) [169.77 m / 169.77 m x 18.29 m x 5.49 m]

Armament:

8 - 8.00" / 203 mm guns (4x2 guns), 256.00lbs / 116.12kg shells, 1931 Model Breech loading guns in turrets (on barbettes) on centerline ends, evenly spread, 2 raised mounts - superfiring
12 - 4.72" / 120 mm guns (6x2 guns), 52.72lbs / 23.91kg shells, 1939 Model Dual purpose guns in deck mounts with hoists on side, all amidships, 2 raised mounts - superfiring
16 - 1.46" / 37.0 mm guns (8x2 guns), 1.55lbs / 0.70kg shells, 1939 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1939 Model Machine guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 2,709 lbs / 1,229 kg
Shells per gun, main battery: 120

Armor:

Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 362.05 ft / 110.35 m 9.30 ft / 2.83 m
Ends: Unarmored
Main Belt covers 100 % of normal length

Gun armor: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 6.00" / 152 mm 4.00" / 102 mm 6.00" / 152 mm
2nd: 1.97" / 50 mm 0.98" / 25 mm 0.98" / 25 mm
3rd: 0.98" / 25 mm - -
4th: 0.98" / 25 mm - -

Armor deck: 2.76" / 70 mm, Conning tower: 5.91" / 150 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 26,420 shp / 19,710 Kw = 25.00 kts
Range 8,500nm at 12.00 kts
Bunker at max displacement = 995 tons

Complement: 439 - 571

Cost: £3.767 million / $15.067 million

Distribution of weights at normal displacement:

Armament: 339 tons, 4.0 %
Armor: 2,514 tons, 29.8 %
- Belts: 666 tons, 7.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 625 tons, 7.4 %
- Armor Deck: 1,170 tons, 13.9 %
- Conning Tower: 53 tons, 0.6 %
Machinery: 715 tons, 8.5 %
Hull, fittings & equipment: 3,792 tons, 45.0 %
Fuel, ammunition & stores: 912 tons, 10.8 %
Miscellaneous weights: 150 tons, 1.8 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 16,556 lbs / 7,509 Kg = 64.7 x 8.0 " / 203 mm shells or 2.7 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 2.8 ft / 0.8 m
Roll period: 15.1 seconds
Steadiness - As gun platform (Average = 50 %): 63 %
- Recoil effect (Restricted arc if above 1.00): 0.73
Seaboat quality (Average = 1.00): 1.49

Hull form characteristics:

Hull has a flush deck and transom stern
Block coefficient: 0.490
Length to Beam Ratio: 9.28: 1
'Natural speed' for length: 27.12 kts
Power going to wave formation at top speed: 45 %
Trim (Max stability = 0, Max steadiness = 100): 42
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: 25.96 ft / 7.91 m
- Forecastle (20 %): 16.52 ft / 5.04 m
- Mid (50 %): 16.52 ft / 5.04 m
- Quarterdeck (15 %): 16.52 ft / 5.04 m
- Stern: 16.52 ft / 5.04 m
- Average freeboard: 17.28 ft / 5.27 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 60.9 %
- Above water (accommodation/working, high = better): 164.4 %
Waterplane Area: 22,942 Square feet or 2,131 Square meters
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 112 lbs/sq ft or 549 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.30
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily