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1

Tuesday, January 3rd 2017, 8:56pm

Marina de Guerra del Perú – Destroyers and Torpedo Boats

Repository for information pertaining to the subject

2

Tuesday, January 3rd 2017, 8:57pm

Independencia Class Heavy Destroyers

(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

3

Tuesday, January 3rd 2017, 10:45pm

Libertad Class Heavy Destroyers

(historical data)

Libertad Class Heavy Destroyers

The Libertad class heavy destroyers will complement existing heavy destroyers as destroyer/torpedo-boat leaders.

Changes from the previous Independencia class include an increase in range, but the main difference is the shift to twin 120mm DP guns rather than the previous 150mm LA mounts. This reflects some dis-satisfaction with the Independencia's main battery. The hull form is slightly revised, being a little stouter than previously.

Libertad, laid down 1943
Coralje, laid down 1944

Enter ship name, Enter country Enter ship type laid down 1943

Displacement: 2,844 t light; 2,985 t standard; 3,322 t normal; 3,592 t full load

Dimensions: Length overall / water x beam x draught

472.03 ft / 459.32 ft x 45.93 ft x 13.78 ft (normal load) [143.88 m / 140.00 m x 14.00 m x 4.20 m]

Armament:

8 - 4.72" / 120 mm guns (4x2 guns), 52.72lbs / 23.92kg shells, 1943 Model Dual purpose guns in deck mounts with hoists on centerline ends, evenly spread, 2 raised mounts - superfiring
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1943 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1943 Model Machine guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 436 lbs / 198 kg
Shells per gun, main battery: 300
10 - 21.0" / 533 mm above water torpedoes

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: 0.98" / 25 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Conning tower: 1.97" / 50 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 62,000 shp / 46,252 Kw = 36.05 kts
Range 6,000nm at 15.00 kts (Bunkerage = 607 tons)

Complement: 218 - 284

Cost: £2.343 million / $9.373 million

Distribution of weights at normal displacement:

Armament: 55 tons, 1.6 %
Armor: 30 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 21 tons, 0.6 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 9 tons, 0.3 %
Machinery: 1,519 tons, 45.7 %
Hull, fittings & equipment: 1,021 tons, 30.7 %
Fuel, ammunition & stores: 478 tons, 14.4 %
Miscellaneous weights: 220 tons, 6.6 %
-84 t: Weight reserve
-50 t: Command facilities
-30 t: 60 x 450 kg mines + rails
-20 t: Torpedoes (no reloads)
-16 t: 48 DC + rails and throwers
-10 t: Radar
-10 t: ASDIC

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 1,183 lbs / 537 Kg = 22.4 x 4.7 " / 120 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.37
Metacentric height 2.7 ft / 0.8 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.28
Seaboat quality (Average = 1.00): 1.09

Hull form characteristics:

Hull has rise forward of midbreak and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.00: 1
'Natural speed' for length: 24.79 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.92 ft / 7.90 m
- Forecastle (20 %): 21.98 ft / 6.70 m
- Mid (50 %): 21.98 ft / 6.70 m (14.11 ft / 4.30 m aft of break)
- Quarterdeck (25 %): 14.11 ft / 4.30 m
- Stern: 14.11 ft / 4.30 m
- Average freeboard: 18.36 ft / 5.60 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 168.6 %
- Above water (accommodation/working, high = better): 146.0 %
Waterplane Area: 13,477 Square feet or 1,252 Square meters
Displacement factor (Displacement / loading): 85 %
Structure weight / hull surface area: 43 lbs/sq. ft or 211 Kg/sq. meter
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.45
- Overall: 0.55
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

4

Thursday, January 5th 2017, 2:22am

Capitan Valdes Class Destroyer

(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

5

Thursday, January 5th 2017, 2:31am

Teniente Vasquez II Class

(Historical data)

The Teniente Vasquez class is expected to be an effective light combatant capable of capital ship escort as well as detached duties such as minelaying. There is a significant margin for future growth, such as sensors; while radar is not so plentiful that Peru can immediately install sets on all warships, its eventual installation seems inevitable.

In a change from previous design practice, a light twin 120mm dual-purpose gun is being introduced instead of the 150mm LA guns employed on Valdes and Independencia classes. It is thought that anti-surface action will benefit from the smaller but more easily handled shells, to say nothing of the gains in anti-aircraft firepower.

Teniente Vasquez II, laid down 1942
Capitan Garcia II, laid down 1942
Almirante Tucker, laid down 1942
Almirante Guise, laid down 1942
Colonel Bolognesi, laid down 1943
Teniente Garezon, laid down 1943
Capitan Sanchez, laid down 1943
Teniente Alejandro, laid down 1943

Teniente Vasquez, Peruvian destroyer, laid down 1942

Displacement: 1,871 t light; 1,991 t standard; 2,237 t normal; 2,433 t full load

Dimensions: Length overall / water x beam x draught

393.57 ft / 386.65 ft x 36.09 ft x 12.47 ft (normal load) [119.96 m / 117.85 m x 11.00 m x 3.80 m]

Armament:

6 - 4.72" / 120 mm guns (3x2 guns), 52.72lbs / 23.91kg shells, 1942 Model Dual purpose guns in deck mounts with hoists on centerline ends, majority forward, 2 raised mounts - superfiring
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1942 Model Anti-aircraft guns in deck mounts on side, all amidships
8 - 0.79" / 20.0 mm guns (2x4 guns), 0.24lbs / 0.11kg shells, 1942 Model Anti-aircraft guns in deck mounts on side, all amidships, all raised mounts - superfiring
4 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1942 Model Machine guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 331 lbs / 150 kg
Shells per gun, main battery: 400
10 - 21.0" / 533 mm above water torpedoes

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: 0.98" / 25 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Conning tower: 1.97" / 50 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 50,000 shp / 37,300 Kw = 35.33 kts
Range 5,500nm at 15.00 kts (Bunkerage = 442 tons)

Complement: 162 - 211

Cost: £1.611 million / $6.443 million

Distribution of weights at normal displacement:

Armament: 41 tons, 1.8 %
Armor: 23 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 16 tons, 0.7 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 7 tons, 0.3 %
Machinery: 1,092 tons, 48.8 %
Hull, fittings & equipment: 589 tons, 26.3 %
Fuel, ammunition & stores: 366 tons, 16.4 %
Miscellaneous weights: 125 tons, 5.6 %
-49 t: Weight reserve
-30 t: 60 x 450 kg mines + rails
-20 t: Torpedoes (no reloads)
-16 t: 48 DC + rails and throwers
-10 t: ASDIC


Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 520 lbs / 236 Kg = 9.9 x 4.7 " / 120 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 1.5 ft / 0.4 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.44
Seaboat quality (Average = 1.00): 0.71

Hull form characteristics:

Hull has rise forward of midbreak and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 10.71: 1
'Natural speed' for length: 22.46 kts
Power going to wave formation at top speed: 68 %
Trim (Max stability = 0, Max steadiness = 100): 70
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: 20.67 ft / 6.30 m
- Forecastle (20 %): 17.72 ft / 5.40 m
- Mid (50 %): 17.72 ft / 5.40 m (9.84 ft / 3.00 m aft of break)
- Quarterdeck (15 %): 9.84 ft / 3.00 m
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 14.02 ft / 4.27 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 180.1 %
- Above water (accommodation/working, high = better): 74.3 %
Waterplane Area: 9,246 Square feet or 859 Square meters
Displacement factor (Displacement / loading): 72 %
Structure weight / hull surface area: 36 lbs/sq ft or 177 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.11
- Overall: 0.54
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

6

Thursday, January 5th 2017, 12:20pm

Ancon Class Torpedo Boat

(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

7

Saturday, January 7th 2017, 4:13pm

Montero class Destroyer

Montero, Peruvian Destroyer laid down 1945

Displacement: 1,660 t light; 1,751 t standard; 1,911 t normal; 2,039 t full load

Dimensions: Length overall / water x beam x draught

368.36 ft / 360.89 ft x 34.45 ft x 13.12 ft (normal load) [112.27 m / 110.00 m x 10.50 m x 4.00 m]

Armament:

4 - 4.72" / 120 mm guns (2x2 guns), 52.72lbs / 23.92kg shells, 1945 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, 1945 Model Anti-aircraft guns in deck mounts on centreline ends, evenly spread, all raised mounts
4 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1945 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 224 lbs / 102 kg
Shells per gun, main battery: 400
10 - 21.0" / 533 mm above water torpedoes

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm 0.98" / 25 mm
2nd: 0.39" / 10 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Conning tower: 0.98" / 25 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 32,282 shp / 24,082 Kw = 32.50 kts
Range 4,000nm at 15.00 kts
Bunker at max displacement = 289 tons

Complement: 143 - 187

Cost: £1.344 million / $5.377 million

Distribution of weights at normal displacement:

Armament: 28 tons, 1.5 %
Armour: 15 tons, 0.8 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 12 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 807 tons, 42.2 %
Hull, fittings & equipment: 736 tons, 38.5 %
Fuel, ammunition & stores: 251 tons, 13.1 %
Miscellaneous weights: 75 tons, 3.9 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 921 lbs / 418 Kg = 17.5 x 4.7 " / 120 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 1.3 ft / 0.4 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.47
Seaboat quality (Average = 1.00): 1.43

Hull form characteristics:

Hull has rise forward of midbreak and transom stern
Block coefficient: 0.410
Length to Beam Ratio: 10.48: 1
'Natural speed' for length: 21.86 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.51 ft / 6.25 m
- Forecastle (20 %): 19.69 ft / 6.00 m
- Mid (50 %): 19.69 ft / 6.00 m (14.76 ft / 4.50 m aft of break)
- Quarterdeck (20 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 17.29 ft / 5.27 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 153.9 %
- Above water (accommodation/working, high = better): 81.9 %
Waterplane Area: 7,991 Square feet or 742 Square metres
Displacement factor (Displacement / loading): 98 %
Structure weight / hull surface area: 41 lbs/sq ft or 202 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.58
- Longitudinal: 3.64
- Overall: 0.69
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
Good seaboat, rides out heavy weather easily

Breakdown of miscellaneous weight:

Anti-submarine detection equipment (ASDIC/Sonar) - 15 tons
Two depth charge racks for 100 kg depth charges - 10 tons each - 20 tons
Four depth charge projectors for 100 kg depth charges - 5 tons each - 20 tons
One hundred twenty depth charges (twenty attacks) - 12 tons
Navigation, surface search, and air search radar- 13 tons

Vessel --- Laid Down --- Launched --- Completed
Destroyer Montero --- 1-Jan-45 --- 31-May-45 --- 18-Nov-45
Destroyer Mariategui --- 1-Jan-45 --- 31-May-45 --- 18-Nov-45
Destroyer Quinones --- 1-Jul-45 --- 28-Nov-45 --- 18-May-46
Destroyer Villacencio --- 1-Jul-45 --- 28-Nov-45 --- 18-May-46

8

Thursday, August 17th 2017, 2:05am

Cano class Destroyer

Cano, Peruvian Destroyer laid down 1947

Displacement: 2,215 t light; 2,363 t standard; 2,598 t normal; 2,785 t full load

Dimensions: Length overall / water x beam x draught

409.37 ft / 393.70 ft x 39.37 ft x 13.12 ft (normal load) [124.78 m / 120.00 m x 12.00 m x 4.00 m]

Armament:

6 - 4.72" / 120 mm guns (3x2 guns), 52.72lbs / 23.92kg shells, 1947 Model Dual purpose guns in deck mounts with hoists on centerline ends, majority forward, 1 raised mount - superfiring
4 - 1.46" / 37.0 mm guns (1x4 guns), 1.55lbs / 0.70kg shells, 1947 Model Anti-aircraft guns in deck mount on centerline aft, all raised guns - superfiring
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1947 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1944 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 335 lbs / 152 kg
Shells per gun, main battery: 500
10 - 21.0" / 533 mm above water torpedoes

Armor:

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

Conning tower: 1.57" / 40 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 38,604 shp / 28,799 Kw = 32.50 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 422 tons

Complement: 181 - 236

Cost: £1.791 million / $7.163 million

Distribution of weights at normal displacement:

Armament: 42 tons, 1.6 %
Armor: 26 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 20 tons, 0.8 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.2 %
Machinery: 954 tons, 36.7 %
Hull, fittings & equipment: 1,083 tons, 41.7 %
Fuel, ammunition & stores: 383 tons, 14.8 %
Miscellaneous weights: 110 tons, 4.2 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 1,738 lbs / 788 Kg = 33.0 x 4.7 " / 120 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 1.6 ft / 0.5 m
Roll period: 13.0 seconds
Steadiness - As gun platform (Average = 50 %): 66 %
- Recoil effect (Restricted arc if above 1.00): 0.47
Seaboat quality (Average = 1.00): 1.32

Hull form characteristics:

Hull has rise forward of midbreak and transom stern
Block coefficient: 0.447
Length to Beam Ratio: 10.00: 1
'Natural speed' for length: 22.79 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 28.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.29 ft / 7.10 m
- Forecastle (20 %): 22.64 ft / 6.90 m
- Mid (50 %): 21.98 ft / 6.70 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: 18.49 ft / 5.64 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 138.7 %
- Above water (accommodation/working, high = better): 108.3 %
Waterplane Area: 10,245 Square feet or 952 Square meters
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 52 lbs/sq ft or 255 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.67
- Longitudinal: 3.27
- Overall: 0.79
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily

Reserved for air warning radar - 12 tons
Reserved for surface search radar -12 tons
Reserved for fire control radar - 16 tons
Reserved for AS detection equipment - 15 tons
Two depth charge racks for 100 kg depth charges - 10 tons each - 20 tons
Four depth charge projectors for 100 kg depth charges - 5 tons each - 20 tons
One hundred twenty depth charges (twenty attacks) - 12 tons


Cano – Laid down 1 January 1947; Launched 31 May 1947; Completed 6 December 1947
De los Heros – Laid down 1 January 1947; Launched 31 May 1947; Completed 6 December 1947
Larrea – Laid down 1 July 1947; Launched 28 November 1947; Completed 4 June 1948
Deganio – Laid down 1 July 1947; Launched 28 November 1947; Completed 4 June 1948
Bustamante - Laid down 1 July 1948
Ugarte - Laid down 1 July 1948