WesWorld

(Historical data)

Filipino Rémora-class submarine, laid down 1929

Length, 242 ft x Beam, 21.4 ft x Depth, 12.9 ft
950 tons normal displacement (831 tons standard)

Main battery: 1 x 3.94-inch / 100mm
Secondary battery: 2 x 0.98-inch / 25mm

Weight of broadside: 32 lbs

8 TT, 21.0" (6 submerged)

Operational diving depth: 185 feet
Emergency diving depth: classified
Crush depth: classified

Maximum speed for 1435 shp = 15.00 knots
Approximate cruising radius, 6000 nm / 12 kts

Typical complement: 86-111

Estimated cost, $605,000 (£151,000)

Distribution of weights:
Percent
normal
displacement:

Armament ......................... 4 tons = 0 pct
Machinery ........................ 44 tons = 5 pct
Hull and fittings; equipment ..... 561 tons = 59 pct
Fuel, ammunition, stores ......... 140 tons = 15 pct
Miscellaneous weights ............ 200 tons = 21 pct
-----
950 tons = 100 pct

Estimated metacentric height, 0.6 ft

Displacement summary:

Light ship: 809 tons
Standard displacement: 831 tons
Normal service: 950 tons
Full load: 1041 tons

Loading submergence 93 tons/foot

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.09

Shellfire needed to sink: 584 lbs = 19.1 x 3.9-inch shells
(Approximates weight of penetrating shell hits needed to sink ship, not counting critical hits)

Torpedoes needed to sink: 0.3
(Approximates number of 'typical' torpedo hits needed to sink ship)

Relative steadiness as gun platform, 1 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.00

Relative quality as a seaboat: 0.00

Hull form characteristics:

Block coefficient: 0.50
Sharpness coefficient: 0.32
Hull speed coefficient 'M' = 7.51
'Natural speed' for length = 15.5 knots
Power going to wave formation at top speed: 37 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by magazines and engineering spaces: 86 percent

Relative accommodation and working space: 1 percent

Displacement factor: 297 percent (Displacement relative to loading factors)

Relative cross-sectional hull strength: 3.87
(Structure weight per square foot of hull surface: 113 lbs)

Relative longitudinal hull strength: 1.44
(for 0.1 ft average freeboard; freeboard adjustment -9.4 ft)

Relative composite hull strength: 1.85


Rémora, laid down 1929, scrapped 1945
Manta, laid down 1929, scrapped 1945
Anguila, laid down 1929, scrapped 1945
Ballena, laid down 1929, scrapped 1945

(Historical data)

Filipino Delfin-class submarine, laid down 1931

Length, 247 ft x Beam, 30.0 ft x Depth, 19.7 ft
2085 tons normal displacement (1558 tons standard)

Main battery: 2 x 4.53-inch / 115mm
AA battery: 2 x 1.38-inch / 35mm
Light battery: 1 x 0.54-inch / 13.7mm

Weight of broadside: 96 lbs

8 TT, 21.0" (6 forwards, 2 aft)

Operational diving depth: 240 feet
Emergency diving depth: 385 feet
Crush depth: 600 feet

Maximum speed for 5000 shp = 18.27 knots
Approximate cruising radius, 9500 nm / 15 kts

Typical complement: 154-201

Estimated cost, $1.462 million (£365,000)

Remarks:

Caution: lacks seaworthiness -- very limited seakeeping ability.
Caution: Very cramped ship with excessively poor habitability; lacks suitable working space.
Ship has quick, 'lively' roll; not a steady gun platform.

Distribution of weights:
Percent
normal
displacement:

Armament ......................... 12 tons = 1 pct
Machinery ........................ 149 tons = 7 pct
Hull and fittings; equipment ..... 897 tons = 43 pct
Fuel, ammunition, stores ......... 577 tons = 28 pct
Miscellaneous weights ............ 450 tons = 22 pct
-----
2085 tons = 100 pct

Estimated metacentric height, 0.8 ft

Displacement summary:

Light ship: 1508 tons
Standard displacement: 1558 tons
Normal service: 2085 tons
Full load: 2499 tons

Loading submergence 133 tons/foot

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.01

Shellfire needed to sink: 1104 lbs = 23.7 x 4.5-inch shells
(Approximates weight of penetrating shell hits needed to sink ship, not counting critical hits)

Torpedoes needed to sink: 0.3
(Approximates number of 'typical' torpedo hits needed to sink ship)

Relative steadiness as gun platform, 1 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.00

Relative quality as a seaboat: 0.00

Hull form characteristics:

Block coefficient: 0.50
Sharpness coefficient: 0.35
Hull speed coefficient 'M' = 5.91
'Natural speed' for length = 15.7 knots
Power going to wave formation at top speed: 52 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by magazines and engineering spaces: 96 percent
Relative accommodation and working space: 1 percent

Displacement factor: 247 percent (Displacement relative to loading factors)

Relative cross-sectional hull strength: 2.77
(Structure weight per square foot of hull surface: 120 lbs)

Relative longitudinal hull strength: 2.32
(for 0.1 ft average freeboard; freeboard adjustment -11.0 ft)

Relative composite hull strength: 2.43

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

247.00 x 30.00 x 19.70; 0.10 -- Dimensions
0.50 -- Block coefficient
1931 -- Year laid down
18.27 / 9500 / 15.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
450 tons -- Miscellaneous weights
++++++++++
2 x 4.53; 0 -- Main battery; turrets
:
0 -- No secondary battery
2 x 1.38 -- Tertiary (QF/AA) battery
Gun-shields
:
1 x 0.54 -- Fourth (light) battery
8 / 8 / 21.00 -- TT / submerged / size
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
0.00 -- No battery armor


Delfin, laid down 1931, scrapped 1946
Sello, laid down 1931, scrapped 1946
Calamar, laid down 1932, scrapped 1946
Otaria, laid down 1932, scrapped 1946

(Historical data)

Bambú, Filipino oiler, laid down 1924

Displacement: 5,573 t light; 5,697 t standard; 6,190 t normal; 6,559 t full load
Loading submergence 704 tons/feet

Dimensions: 393.70 ft x 78.74 ft x 9.84 ft (normal load) [120.00 m x 24.00 m x 3.00 m]

Machinery:

Diesel Internal combustion motors, Geared drive, 2 shafts, 3,000 shp / 2,238 Kw = 12.92 kts
Range 10,000nm at 10.00 kts

Complement: 31 officers and 370 men

Cost: £0.608 million / $2.433 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Machinery: 100 tons, 1.6 %
Hull, fittings & equipment: 2,223 tons, 35.9 %
Fuel, ammunition & stores: 616 tons, 10.0 %
Miscellaneous weights: 3,250 tons, 52.5 %

Metacentric height 5.3

Remarks:

Hull space for machinery, storage & compartmentation is excellent
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable and able to fight her guns in the heaviest weather

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.26
Shellfire needed to sink: 16,368 lbs / 7,425 Kg = 151.6 x 6 " / 152 mm shells (Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 3.0 (Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 77 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.00
Relative quality as seaboat: 1.54

Hull form characteristics:

Block coefficient: 0.710
Sharpness coefficient: 0.50
Hull speed coefficient 'M': 6.56
'Natural speed' for length: 19.84 kts
Power going to wave formation at top speed: 28 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:

Underwater volume absorbed by magazines and engineering spaces: 63.2 %
Relative accommodation and working space: 234.5 %
(Average = 100%)
Displacement factor: 179 % (Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.96 (Structure weight / hull surface area: 74 lbs / square foot or 363 Kg / square metre)
Relative longitudinal hull strength: 1.46 (for 17.39 ft / 5.30 m average freeboard, freeboard adjustment 3.63 ft)
Relative composite hull strength: 1.00

Misc. weight:

3175t tankerage
50t catapult + airplane
25t climatisation


Bambú, laid down 1924 in Italy, scrapped 1946

(Historical data)

Filipino Agulón-class submarine, laid down 1933

Displacement: 499 t light; 512 t standard; 588 t normal; 648 t full load

Dimensions: Length overall / water x beam x draught

193.57 ft / 193.57 ft x 20.34 ft x 13.12 ft (normal load) [59.00 m / 59.00 m x 6.20 m x 4.00 m]

Armament:

1 - 2.95" / 75.0 mm guns in single mounts, 13.23lbs / 6.00kg shells, 1933 Model Quick firing gun in deck mount on centreline forward
1 - 1.38" / 35.0 mm guns in single mounts, 1.32lbs / 0.60kg shells, 1933 Model Anti-aircraft gun in deck mount on centreline aft
Weight of broadside 15 lbs / 7 kg
Shells per gun, main battery: 150
6 - 24.0" / 610 mm submerged torpedo tubes (4 forward, 2 aft), 12 torpedoes

Armour:

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

Machinery:

Diesel Internal combustion motors, Electric cruising motors plus geared drives, 2 shafts, 2,500 shp / 1,865 Kw = 18.46 kts
Range 8,000nm at 10.00 kts
Bunker at max displacement = 136 tons

Complement: 59 - 77

Cost: £0.138 million / $0.553 million

Distribution of weights at normal displacement:

Armament: 2 tons, 0.3 %
Armour: 1 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 73 tons, 12.4 %
Hull, fittings & equipment: 303 tons, 51.6 %
Fuel, ammunition & stores: 89 tons, 15.1 %
Miscellaneous weights: 120 tons, 20.4 %

Misc. Weight:

12 t for six torpedo reloads
108 t for ballast tanks

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 106 lbs / 48 Kg = 8.3 x 3.0 " / 75 mm shells or 0.1 torpedoes
Stability (Unstable if below 1.00): 1.00
Metacentric height 0.5 ft / 0.1 m
Roll period: 12.6 seconds
Steadiness - As gun platform (Average = 50 %): 22 %
- Recoil effect (Restricted arc if above 1.00): 0.05
Seaboat quality (Average = 1.00): 0.88

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.400
Length to Beam Ratio: 9.52 : 1
'Natural speed' for length: 13.91 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 11
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: 15.29 ft / 4.66 m
- Forecastle (20 %): 9.74 ft / 2.97 m
- Mid (50 %): 9.74 ft / 2.97 m
- Quarterdeck (15 %): 9.74 ft / 2.97 m
- Stern: 9.74 ft / 2.97 m
- Average freeboard: 10.19 ft / 3.11 m
Ship tends to be wet forward

Operational Diving Depth: 53 m
Emergency Depth: 85 m
Crush Depth: 132 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 244.1 %
- Above water (accommodation/working, high = better): 76.2 %
Waterplane Area: 2,423 Square feet or 225 Square metres
Displacement factor (Displacement / loading): 210 %
Structure weight / hull surface area: 48 lbs/sq ft or 234 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.26
- Longitudinal: 9.48
- Overall: 1.55
Hull space for machinery, storage, compartmentation is extremely poor
Room for accommodation and workspaces is cramped
Ship has quick, lively roll, not a steady gun platform
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather


Agulón, laid down 1933 - scrapped 1946
Rascacio, laid down 1933 - scrapped 1946
Dorado, laid down 1933 - scrapped 1946
Bolete, laid down 1933 - scrapped 1946
Roncador, laid down 1933 - scrapped 1946
Picuda, laid down 1933 - scrapped 1946

(Historical data)

The second of the ships constructed using the turrets of the scrapped Doria. While the Presidente Bonifacio was well received as a secondary role ship useful for the insular areas of the Philippines this ship was considered to be a weak compromise when compared with other similar ships that appeared during the period like the Australian Lion and the Leopards.

Presidente Aguinaldo, Philippino Battlecruiser laid down 1938

Displacement: 24,970 t light; 26,227 t standard; 28,273 t normal; 29,910 t full load

Dimensions: Length overall / water x beam x draught

752.63 ft / 750.00 ft x 80.00 ft (Bulges 91.20 ft) x 26.50 ft (normal load) [229.40 m / 228.60 m x 24.38 m (Bulges 27.80 m) x 8.08 m]

Armament:

3 - 12.60" / 320 mm guns (1x3 guns), 999.81lbs / 453.51kg shells, 1938 Model Breech loading guns in a turret (on a barbette) on centreline forward
4 - 12.60" / 320 mm guns (2x2 guns), 999.81lbs / 453.51kg shells, 1938 Model Breech loading guns in turrets (on barbettes) on centreline, all aft, 1 raised mount - superfiring
16 - 4.53" / 115 mm guns (8x2 guns), 46.40lbs / 21.05kg shells, 1938 Model Dual purpose guns in deck mounts with hoists on side ends, evenly spread
32 - 1.38" / 35.0 mm guns (8x4 guns), 1.31lbs / 0.59kg shells, 1938 Model Anti-aircraft guns in deck mounts with hoists on side, all amidships, all raised mounts - superfiring
Weight of broadside 7,783 lbs / 3,530 kg
Shells per gun, main battery: 150

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 11.0" / 280 mm 487.50 ft / 148.59 m 13.12 ft / 4.00 m
Ends: Unarmoured
Main Belt covers 100 % of normal length

Torpedo Bulkhead and Bulges: 1.57" / 40 mm 487.50 ft / 148.59 m 25.43 ft / 7.75 m

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.0" / 280 mm 7.87" / 200 mm 9.06" / 230 mm
2nd: 11.0" / 280 mm 7.87" / 200 mm 9.06" / 230 mm
3rd: 1.18" / 30 mm 0.79" / 20 mm 0.79" / 20 mm

Armour deck: 4.72" / 120 mm, Conning tower: 11.02" / 280 mm

Machinery:

Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 132,778 shp / 99,052 Kw = 32.00 kts
Range 15,000nm at 12.00 kts
Bunker at max displacement = 3,683 tons

Complement: 1,089 - 1,417

Cost: £12.401 million / $49.604 million

Distribution of weights at normal displacement:

Armament: 973 tons, 3.4 %
Armour: 9,232 tons, 32.7 %
- Belts: 2,958 tons, 10.5 %
- Torpedo bulkhead: 722 tons, 2.6 %
- Armament: 1,535 tons, 5.4 %
- Armour Deck: 3,795 tons, 13.4 %
- Conning Tower: 220 tons, 0.8 %
Machinery: 3,636 tons, 12.9 %
Hull, fittings & equipment: 10,930 tons, 38.7 %
Fuel, ammunition & stores: 3,303 tons, 11.7 %
Miscellaneous weights: 200 tons, 0.7 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 41,681 lbs / 18,906 Kg = 41.7 x 12.6 " / 320 mm shells or 6.5 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 4.7 ft / 1.4 m
Roll period: 17.7 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.07

Hull form characteristics:

Hull has a flush deck and transom stern
Block coefficient: 0.546
Length to Beam Ratio: 8.22: 1
'Natural speed' for length: 31.58 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 56
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: 30.10 ft / 9.17 m
- Forecastle (20 %): 22.00 ft / 6.71 m
- Mid (50 %): 21.00 ft / 6.40 m
- Quarterdeck (15 %): 21.00 ft / 6.40 m
- Stern: 21.00 ft / 6.40 m
- Average freeboard: 22.00 ft / 6.70 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 93.3 %
- Above water (accommodation/working, high = better): 161.3 %
Waterplane Area: 43,424 Square feet or 4,034 Square metres
Displacement factor (Displacement / loading): 115 %
Structure weight / hull surface area: 166 lbs/sq ft or 810 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.20
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

Sold to Argentina in October 1946

(Historical data)

Soccsksargen class torpedo-boat tender, laid down 1928

Length, 70.0 m x Beam, 13.0 m x Depth, 4.0 m
2202 tonnes normal displacement (1929 tonnes standard)

Main battery: 2 x 100mm (2x1)
Secondary battery: 6 x 25mm (2x3)
AA battery: 4 x 13.7mm (1x4)
Weight of broadside: 31 kg

Hull unarmored

Battery armor:
Main, 30mm shields / secondary, 15mm shields
AA, 15mm shields

Maximum speed for 2999 shaft kw = 16.68 knots
Approximate cruising radius, 8000 nm / 12 knots

Typical complement: 161-209

Estimated cost, $1.383 million (£346,000)

Remarks:

Excellent seaboat; comfortable and able to fight her guns in the heaviest weather
Magazines and engineering spaces are roomy, with superior watertight subdivision
Ship is roomy, with superior accommodation and working space

Distribution of weights:
Percent
normal
displacement:

Armament ......................... 9 tonnes = 0 pct
Armor, total ..................... 5 tonnes = 0 pct

Armament 5 tonnes = 0 pct

Machinery ........................ 125 tonnes = 6 pct
Hull and fittings; equipment ..... 840 tonnes = 38 pct
Fuel, ammunition, stores ......... 323 tonnes = 15 pct
Miscellaneous weights ............ 900 tonnes = 41 pct
-----
2202 tonnes = 100 pct

Estimated metacentric height, 0.4 m

Displacement summary:

Light ship: 1879 tonnes
Standard displacement: 1929 tonnes
Normal service: 2202 tonnes
Full load: 2412 tonnes

Loading submergence 652 tonnes/metre

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.01
Shellfire needed to sink: 1983 kg = 142.7 x 10.0-cm shells (Approximates weight of penetrating shell hits needed to sink ship, not counting critical hits)
Torpedoes needed to sink: 1.4 (Approximates number of 'typical' torpedo hits needed to sink ship)
Relative steadiness as gun platform, 60 percent (50 percent is 'average')
Relative rocking effect from firing to beam, 0.04
Relative quality as a seaboat: 2.00

Hull form characteristics:

Block coefficient: 0.60
Sharpness coefficient: 0.45
Hull speed coefficient 'M' = 5.39
'Natural speed' for length = 15.2 knots
Power going to wave formation at top speed: 57 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by magazines and engineering spaces: 67 percent
Relative accommodation and working space: 149 percent
Displacement factor: 180 percent (Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.12 (Structure weight per square metre of hull surface: 352 kg)

Relative longitudinal hull strength: 5.94 (for 5.50 m average freeboard; freeboard adjustment +2.09 m)
Relative composite hull strength: 1.33


Modified version of Indian Captain Jagan Rane-class tender.

Misc. Weight:

396 t = accommodation for 198 "tendee" crew (at 2 t per)
168 t = fuel for "tendees"
78 t = ammunition and stores for tendees
25 t = flag facilities
25 t = medical facilities
100 t = workshops
108 t = repair materials

Soccsksargen, laid down 1928, scrapped January 1947
Cordillera, laid down 1928, scrapped January 1947

(Historical data)

Calabarzon-class submarine tender, laid down 1931

Length, 230 ft x Beam, 42.6 ft x Depth, 13.1 ft
2202 tons normal displacement (1920 tons standard)

Main battery: 2 x 2.95-inch / 75mm (2x1)
Secondary battery: 4 x 1.38-inch / 35mm (2x2)
AA battery: 4 x 0.54-inch / 13.7mm (1x4)

Weight of broadside: 32 lbs

Hull unarmored

Battery armor:
Main, 30mm shields / secondary, 20mm shields
AA, 15mm shields

Maximum speed for 3000 shp = 15.51 knots
Approximate cruising radius, 8500 nm / 12 kts

Typical complement: 161-209

Estimated cost, $1.421 million (£355,000)

Remarks:

Excellent seaboat; comfortable and able to fight her guns in the heaviest weather
Magazines and engineering spaces are roomy, with superior watertight subdivision
Ship is roomy, with superior accommodation and working space.

Distribution of weights:
Percent
normal
displacement:

Armament ......................... 4 tons = 0 pct
Armor, total ..................... 4 tons = 0 pct

Armament 4 tons = 0 pct

Machinery ........................ 90 tons = 4 pct
Hull and fittings; equipment ..... 826 tons = 38 pct
Fuel, ammunition, stores ......... 328 tons = 15 pct
Miscellaneous weights ............ 950 tons = 43 pct
-----
2202 tons = 100 pct

Estimated metacentric height, 1.5 ft

Displacement summary:

Light ship: 1874 tons
Standard displacement: 1920 tons
Normal service: 2202 tons
Full load: 2418 tons

Loading submergence 199 tons/foot

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.03
Shellfire needed to sink: 4710 lbs = 366.9 x 3.0-inch shells (Approximates weight of penetrating shell hits needed to sink ship, not counting critical hits)
Torpedoes needed to sink: 1.5 (Approximates number of 'typical' torpedo hits needed to sink ship)
Relative steadiness as gun platform, 50 percent (50 percent is 'average')
Relative rocking effect from firing to beam, 0.02
Relative quality as a seaboat: 2.00

Hull form characteristics:

Block coefficient: 0.60
Sharpness coefficient: 0.45
Hull speed coefficient 'M' = 5.39
'Natural speed' for length = 15.2 knots
Power going to wave formation at top speed: 53 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by magazines and engineering spaces: 62 percent

Relative accommodation and working space: 149 percent

Displacement factor: 189 percent (Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.13 (Structure weight per square foot of hull surface: 71 lbs)
Relative longitudinal hull strength: 5.85 (for 18.0 ft average freeboard; freeboard adjustment +6.9 ft)
Relative composite hull strength: 1.33

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

229.60 x 42.64 x 13.12; 18.04 -- Dimensions
0.60 -- Block coefficient
1931 -- Year laid down
15.51 / 8500 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
950 tons -- Miscellaneous weights
++++++++++
2 x 2.95; 0 -- Main battery; turrets
Gun-shields
:
4 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
4 x 0.54 -- Tertiary (QF/AA) battery
Gun-shields
:
0 -- No fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
1.18 / 0.79 / 0.59 / 0.00 -- Battery armor


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

Modified version of Soccksargen-class torpedo boat tender which is a modified version of the Indian Captain Jagan Rane-class tender.

Misc. Weight:
400 t = accommodation for 200 "tendee" crew (at 2 t per)
200 t = fuel for "tendees"
80 t = ammunition and stores for tendees
25 t = flag facilities
25 t = medical facilities
100 t = workshops
120 t = repair materials


Calabarzon, laid down 1931; Scrapped April 1947

(Historical data)

Visayas-class minelayer/sweeper tender, laid down 1932

Length, 230 ft x Beam, 42.6 ft x Depth, 13.1 ft
2202 tons normal displacement (1920 tons standard)

Main battery: 2 x 2.95-inch / 75mm (2x1)
Secondary battery: 4 x 1.38-inch / 35mm (2x2)
AA battery: 4 x 0.54-inch / 13.7mm (1x4)

Weight of broadside: 32 lbs

Hull unarmored

Battery armor:
Main, 30mm shields / secondary, 20mm shields
AA, 15mm shields

Maximum speed for 3000 shp = 15.51 knots
Approximate cruising radius, 8500 nm / 12 kts

Typical complement: 161-209

Estimated cost, $1.421 million (£355,000)

Remarks:

Excellent seaboat; comfortable and able to fight her guns in the heaviest weather
Magazines and engineering spaces are roomy, with superior watertight subdivision
Ship is roomy, with superior accommodation and working space.

Distribution of weights:
Percent
normal
displacement:

Armament ......................... 4 tons = 0 pct
Armor, total ..................... 4 tons = 0 pct

Armament 4 tons = 0 pct

Machinery ........................ 90 tons = 4 pct
Hull and fittings; equipment ..... 826 tons = 38 pct
Fuel, ammunition, stores ......... 328 tons = 15 pct
Miscellaneous weights ............ 950 tons = 43 pct
-----
2202 tons = 100 pct

Estimated metacentric height, 1.5 ft

Displacement summary:

Light ship: 1874 tons
Standard displacement: 1920 tons
Normal service: 2202 tons
Full load: 2418 tons

Loading submergence 199 tons/foot

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.03
Shellfire needed to sink: 4710 lbs = 366.9 x 3.0-inch shells (Approximates weight of penetrating shell hits needed to sink ship, not counting critical hits)
Torpedoes needed to sink: 1.5 (Approximates number of 'typical' torpedo hits needed to sink ship)
Relative steadiness as gun platform, 50 percent (50 percent is 'average')
Relative rocking effect from firing to beam, 0.02
Relative quality as a seaboat: 2.00

Hull form characteristics:

Block coefficient: 0.60
Sharpness coefficient: 0.45
Hull speed coefficient 'M' = 5.39
'Natural speed' for length = 15.2 knots
Power going to wave formation at top speed: 53 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by magazines and engineering spaces: 62 percent
Relative accommodation and working space: 149 percent
Displacement factor: 189 percent (Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.13 (Structure weight per square foot of hull surface: 71 lbs)
Relative longitudinal hull strength: 5.85 (for 18.0 ft average freeboard; freeboard adjustment +6.9 ft)
Relative composite hull strength: 1.33

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

229.60 x 42.64 x 13.12; 18.04 -- Dimensions
0.60 -- Block coefficient
1931 -- Year laid down
15.51 / 8500 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
950 tons -- Miscellaneous weights
++++++++++
2 x 2.95; 0 -- Main battery; turrets
Gun-shields
:
4 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
4 x 0.54 -- Tertiary (QF/AA) battery
Gun-shields
:
0 -- No fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
1.18 / 0.79 / 0.59 / 0.00 -- Battery armor


Modified version of Soccksargen-class torpedo boat tender which is a modified version of the Indian Captain Jagan Rane-class tender.

Misc. Weight:
400 t = accommodation for 200 "tendee" crew (at 2 t per)
200 t = fuel for "tendees"
80 t = ammunition and stores for tendees
25 t = flag facilities
25 t = medical facilities
100 t = workshops
120 t = repair materials


Visayas, laid down 1932 – renamed Guadelupe 1941; scrapped April 1947
Kalatungan, laid down 1932 – renamed Labangon 1941; scrapped July 1947
Compostela, laid down 1933 – renamed Mambaling 1941; scrapped July 1947

(Historical data)

Linguyen, Filipino Light Carrier laid down 1936

Displacement: 8,057 t light; 8,283 t standard; 9,190 t normal; 9,915 t full load

Dimensions: Length overall / water x beam x draught

570.12 ft / 541.34 ft x 65.62 ft (Bulges 75.46 ft) x 16.40 ft (normal load) [173.77 m / 165.00 m x 20.00 m (Bulges 23.00 m) x 5.00 m]

Armament:

6 - 4.53" / 115 mm guns in single mounts, 46.40lbs / 21.05kg shells, 1933 Model Dual purpose guns in deck mounts on side, all amidships, all raised mounts - superfiring
16 - 1.38" / 35.0 mm guns (8x2 guns), 1.31lbs / 0.59kg shells, 1918 Model Anti-aircraft guns in deck mounts on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 299 lbs / 136 kg
Shells per gun, main battery: 240

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 1.97" / 50 mm 330.22 ft / 100.65 m 9.71 ft / 2.96 m
Ends: Unarmoured
Main Belt covers 94 % of normal length

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

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

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 72,862 shp / 54,355 Kw = 32.00 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 1,632 tons

Complement: 469 - 610

Cost: £2.887 million / $11.547 million

Distribution of weights at normal displacement:

Armament: 37 tons, 0.4 %
Armour: 1,028 tons, 11.2 %
- Belts: 270 tons, 2.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 17 tons, 0.2 %
- Armour Deck: 704 tons, 7.7 %
- Conning Tower: 37 tons, 0.4 %
Machinery: 2,123 tons, 23.1 %
Hull, fittings & equipment: 3,635 tons, 39.6 %
Fuel, ammunition & stores: 1,132 tons, 12.3 %
Miscellaneous weights: 1,234 tons, 13.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 14,844 lbs / 6,733 Kg = 319.9 x 4.5 " / 115 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 3.7 ft / 1.1 m
Roll period: 16.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:

Hull has rise forward of midbreak and transom stern
Block coefficient: 0.480
Length to Beam Ratio: 7.17: 1
'Natural speed' for length: 27.38 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 32.81 ft / 10.00 m
- Forecastle (22 %): 29.53 ft / 9.00 m
- Mid (50 %): 26.25 ft / 8.00 m (19.69 ft / 6.00 m aft of break)
- Quarterdeck (17 %): 19.69 ft / 6.00 m
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 24.44 ft / 7.45 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 93.4 %
- Above water (accommodation/working, high = better): 230.1 %
Waterplane Area: 24,163 Square feet or 2,245 Square metres
Displacement factor (Displacement / loading): 135 %
Structure weight / hull surface area: 92 lbs/sq ft or 450 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.18
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Space for 32 aircraft, along with 4 spares at 25 tons each.

110 tons reserved for command spaces and growth.