WesWorld

These are the definitive datasets. The last words. The big cheeses. Data in the Ship Design forum are preliminary drafts. Data in the SIM Reports forum may be propaganda.

Service data after ship names is baselined at 1 July 1924, and will be updated as changes are made. Note that these ships are posted by their MdF classifications, *NOT* Cleito Treaty classifications. For example, the Panabo-class Coast Defense Ships will be classified as Battleships by the MdF, and when they are posted here they will be in that catagory. CT Classifications will be posted in a seperate report appended to the Q4/24 report, and then yearly therafter.

A brief (ha!) rundown of the various classifications:

Ship Classifications of the Marina de Filipinas:
(all displacements are standard.)

Acorazados (Battleships) - "B"

Grandes acorazados (Large Battleships).
Battleships with a main armament of 410mm or larger.

Acorazados de primera clase (First Class Battleships)
Battleships with more than six guns of a caliber of 305mm to 406mm.

Acorazados de segunda clase (Second Class Battleships)
Battleships with fewer than six guns of a caliber of 305mm or larger.

Cruceros (Cruisers) - "C"

Cruceros de batalla (Battlecruisers)
Cruisers with six or more guns of a caliber of 305mm or larger, OR eight or more of 283mm or larger.

Cruceros mayor (Large Cruisers)
Cruisers with guns of 250mm or larger but smaller than 283mm, OR with fewer than eight guns of 283mm to 305mm, OR with fewer than six guns larger than 305mm. The Panzerschffen and the "Outrageous"-class fit this category.

Cruceros de primera clase (First Class Cruisers)
Cruisers with a main armament of 200mm to 240mm.

Cruceros de segunda clase (Second Class Cruisers) - "CL"
Cruisers with a main armament of 190mm or smaller.

Cruceros del acompañamiento (Escort Cruisers) - "CE"
Cruisers with a speed of 24 knots or less, a displacement of 13,000 tons or less, and guns of 240mm or smaller.

Cruceros de minadores (Minelaying Cruisers) - "CM"
Minelayers of 1200 tons or greater.

Cruceros de hidroavión (Seaplane Cruisers) - "CH"
Cruisers with an enhanced capability of operating seaplanes. (Think Tone - or even the Ise conversions.)

Cruceros portaaviones (Aircraft-carrying Cruisers) - "CV"
Cruisers with the capability of operating wheeled aircraft.

Other ships

Fragatas (Frigates) - "F"
Destroyers of 1,601 tons or greater.

Destructores (Destroyers) - "D" (including "F" up to F-8, "R" up to R-10, and "I" up to I-4)
Destroyers of 601-1,600 tons.

Cazadores de submarinos (Subchasers) - "E"
Destroyers of 600 tons or less.

Submarinos (Submarines) - "S"
Duh!

Torpederos (Torpedo Boats) - "T"
Ships carrying guns of 100mm or smaller, with a primary mission of torpedo attack.

Monitores (Monitors) - "M"
Ships of 601 tons or greater, with a primary mission of shore bombardment.

Canoñeros (Gunboats) - "G"
Ships of 600 tons or less, with a primary mission of shore bombardment.
(Designators for this class include caliber; the fourth 100mm-armed gunboat would be 'named' G100-4.

Artes de patrulla (Patrol Boats) - "P"
Ships of 2,000 tons or less, mounting guns of 94mm or smaller, with a primary mission of security patrols.

Dragaminas (Minesweepers) - "MS"
Minesweepers of 301 tons or greater.

Dragaminas costeros (Coastal Minesweepers) - "MSC"
Minesweepers of 300 tons or less.

Minadores (Minelayers) - "ML"
Minelayers of 1199 tons or less.

Portadores del hidroavión (Seaplane Carriers) - "H"
Ships, that are not cruisers, with the primary mission of carrying seaplanes.

Transportes (Transports) - "R"
Ships with the primary mission of transporting troops.
(R-1 to R-10, destroyers)

Buques Polares (Icebreakers) - "I"
Includes 'Polar Exploration Ships'.
(I-1 to I-4, destroyers)

Petroleros (Oilers) - "O"
Replenishment oilers.

Carboneros (Colliers) - "L"
Colliers.

Others will be added as I need to add them to the fleet.

The current alphabetical order...

A -
B - Battleships
C - Battlecruisers, Large Cruisers, First Class Cruisers
CE - Escort Cruisers
CH - Seaplane Cruisers
CL - Second Class Cruisers
CM - Minelaying Cruisers
CV - Aircraft-carrying Cruisers
D - Destroyers
E - Subchasers
F - Large Destroyers (Frigates)
G - Gunboats
H - Seaplane Carriers
I - Icebreakers
J -
K -
L - Colliers
M - Monitors
ML - Minelayers
MS - Minesweepers
MSC - Coastal Minesweepers
N -
O - Oilers
P - Patrol Boats
Q -
R - Transports (formerly, Large Torpedo Boats)
S - Submarines
T - Torpedo boats
U -
V -
W -
X -
Y -
Z -

Acorazados (Battleships)

Grandes acorazados (Large Battleships).

None yet.

Acorazados de primera clase (First Class Battleships)

None yet.

Acorazados de segunda clase (Second Class Battleships)

1898: Manila-class

PRS Manila (B-1)
PRS Angeles (B-2) - sold to Bulgaria 14 June 1924

Displacement:
10,740 t light; 11,468 t standard; 14,482 t normal; 16,835 t full load
Loading submergence 625 tons/feet

Dimensions:
394.00 ft x 73.00 ft x 26.50 ft (normal load)
120.09 m x 22.25 m x 8.08 m

Armament:
4 - 12.00" / 305 mm guns (2 Main turrets x 2 guns)
16 - 6.00" / 152 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
6 - 3.00" / 76 mm QF guns
Weight of broadside 5,265 lbs / 2,388 kg

Armour:
Belt 10.00" / 254 mm, upper belt 8.00" / 203 mm, end belts 6.00" / 152 mm
Belts cover 89 % of normal area
Main turrets 10.00" / 254 mm, 2nd casemates 4.00" / 102 mm
Armour deck 2.00" / 51 mm, Conning tower 10.00" / 254 mm

Machinery:
Coal fired boilers, simple reciprocating steam engines,
Direct drive, 2 shafts, 12,894 ihp / 9,619 Kw = 17.50 kts
Range 3,900nm at 17.50 kts

Complement:
660 - 858

Cost:
£1.254 million / $5.016 million

Distribution of weights at normal displacement:
Armament: 658 tons, 4.5 %
Armour: 3,782 tons, 26.1 %
Belts: 1,964 tons, 13.6 %, Armament: 880 tons, 6.1 %, Armour Deck: 810 tons, 5.6 %
Conning Tower: 128 tons, 0.9 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,323 tons, 16.0 %
Hull, fittings & equipment: 3,926 tons, 27.1 %
Fuel, ammunition & stores: 3,742 tons, 25.8 %
Miscellaneous weights: 50 tons, 0.3 %

Metacentric height 4.0

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.15
Shellfire needed to sink: 13,733 lbs / 6,229 Kg = 15.9 x 12.0 " / 305 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 2.0
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 80 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.50
Relative quality as seaboat: 1.27

Hull form characteristics:
Block coefficient: 0.665
Sharpness coefficient: 0.47
Hull speed coefficient 'M': 4.94
'Natural speed' for length: 19.85 kts
Power going to wave formation at top speed: 49 %
Trim: 63
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 87.9 %
Relative accommodation and working space: 82.1 %
(Average = 100%)
Displacement factor: 105 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.93
(Structure weight / hull surface area: 127 lbs / square foot or 622 Kg / square metre)
Relative longitudinal hull strength: 1.86
(for 13.00 ft / 3.96 m average freeboard, freeboard adjustment -3.31 ft)
Relative composite hull strength: 1.00

----------

1907: Radetzky-class



PRS Fernando (B-3) (ex-Erzherzog Franz Ferdinand) - purchased from Bulgaria 14 June 1924

Length, 448 ft x Beam, 80.33 ft x Depth, 26.5 ft
14986 tons normal displacement (14424 tons standard)

Main battery: 4 x 12.00-inch / 305mm (2 x 2)
Secondary battery: 8 x 9.40-inch / 240mm (4 x 2)
QF battery: 20 x 3.94-inch / 100mm
Light battery: 6 x 3.46-inch / 88mm

Weight of broadside: 7514 lbs

3 TT, 17.7" (submerged)

Main belt, 9.0 inches; bow and stern, 4.0 inches
Upper belt, 6.0 inches
Armor deck, average 1.88 inches
C.T., 10.0 inches

Battery armor:
Main, 9.75" / secondary, 8.0"
QF, 4.75"

Maximum speed for 19983 ihp = 19.90 knots
Approximate cruising radius, 3500 nm / 10 kts

Typical complement: 677-880


Estimated cost, $6.289 million (£1.572 million)

Remarks:

Good seaboat; rides out heavy weather easily.

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


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 939 tons = 6 pct
Armor, total ..................... 4914 tons = 33 pct

Belt 2111 tons = 14 pct
Deck 839 tons = 6 pct
C.T. 131 tons = 1 pct
Armament 1833 tons = 12 pct

Machinery ........................ 2220 tons = 15 pct
Hull and fittings; equipment ..... 5425 tons = 36 pct
Fuel, ammunition, stores ......... 1488 tons = 10 pct
Miscellaneous weights ............ 0 tons = 0 pct
-----
14986 tons = 100 pct

Estimated metacentric height, 4.2 ft

Displacement summary:

Light ship: 13498 tons
Standard displacement: 14424 tons
Normal service: 14986 tons
Full load: 15376 tons

Loading submergence 689 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.09

Shellfire needed to sink: 13308 lbs = 15.4 x 12.0-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 1.9
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 61 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.56

Relative quality as a seaboat: 1.23

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


Hull form characteristics:

Block coefficient: 0.55
Sharpness coefficient: 0.42
Hull speed coefficient 'M' = 5.56
'Natural speed' for length = 21.2 knots
Power going to wave formation
at top speed: 49 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 99 percent

Relative accommodation and working space: 102 percent


Displacement factor: 89 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.94
(Structure weight per square
foot of hull surface: 157 lbs)

Relative longitudinal hull strength: 1.89
(for 15.0 ft average freeboard;
freeboard adjustment -1.4 ft)

Relative composite hull strength: 1.00

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

Cruceros (Cruisers)

Cruceros de batalla (Battlecruisers)

1923: Basilan-class

PRS Baslian (C-3) - incomplete, damaged beyond repair, scrapping

Displacement:
13,048 t light; 13,759 t standard; 15,243 t normal; 16,369 t full load
Loading submergence 784 tons/feet

Dimensions:
639.76 ft x 68.24 ft x 24.44 ft (normal load)
195.00 m x 20.80 m x 7.45 m

Armament:
9 - 10.00" / 254 mm guns (3 Main turrets x 3 guns, 1 superfiring turret)
12 - 3.94" / 100 mm guns
16 - 0.98" / 25 mm guns
Weight of broadside 4,875 lbs
4 - 21.0" / 533.4 mm above water torpedoes

Armour:
Belt 5.51" / 140 mm, ends unarmoured
Belts cover 100 % of normal area
Main turrets 5.51", secondaries 1" shields, light guns 0.2" shields
Armour deck 1.97" / 50 mm, Conning tower 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 95,000 shp / 70,870 Kw = 31.06 kts
Range 4,100nm at 20.00 kts

Complement:
686 - 892

Cost:
£4.111 million / $16.445 million

Distribution of weights at normal displacement:
Armament: 609 tons, 4 %
Armour: 2,823 tons, 19 %
Belts: 937 tons, 6 %, Armament: 849 tons, 6 %, Armour Deck: 1000 tons, 7 %
Conning Tower: 37 tons, 0.2 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 3,176 tons, 21 %
Hull, fittings & equipment: 6,389 tons, 42 %
Fuel, ammunition & stores: 2,195 tons, 14 %
Miscellaneous weights: 50 tons, 0.3 %

Metacentric height 3.6

Remarks:
Room for accommodation & workspaces is excellent

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.14
Shellfire needed to sink: 17,255 lbs = 34.5 x 10.0 " / 254 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.8
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 50 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.73
Relative quality as seaboat: 1.14

Hull form characteristics:
Block coefficient: 0.500
Sharpness coefficient: 0.34
Hull speed coefficient 'M': 7.89
'Natural speed' for length: 25.29 kts
Power going to wave formation at top speed: 54 %
Trim: 44
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 99 %
Relative accommodation and working space: 152 %
(Average = 100%)
Displacement factor: 109 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.96
(Structure weight / hull surface area: 139 lbs / square foot or 680 Kg / square metre)
Relative longitudinal hull strength: 1.49
(for 21.33 ft / 6.50 m average freeboard, freeboard adjustment 4.85 ft)
Relative composite hull strength: 1.00

Cruceros mayor (Large Cruisers)

None yet.

Cruceros de primera clase (First Class Cruisers)

1901: Luzon-class

PRS Luzon (C-1)
PRS Mindoro (C-2) - scrapping

Length, 504 ft x Beam, 69.5 ft x Depth, 26.5 ft
15966 tons normal displacement (13139 tons standard)

Main battery: 4 x 8.00-inch / 203mm (2 x 2)
Secondary battery: 14 x 6.00-inch / 152mm
QF battery: 18 x 3.00-inch / 76mm / 14-pdr

Weight of broadside: 2779 lbs

Main belt, 8.0 inches; bow and stern, 2.0 inches
Armor deck, average 2.0 inches
C.T., 8.0 inches

Battery armor:
Main, 9.0" / secondary, 3.0"
QF, 0.5" shields

Maximum speed for 20272 ihp = 20.00 knots
Approximate cruising radius, 4500 nm / 17 kts

Typical complement: 710-923


Estimated cost, $4.676 million (£1.169 million)

Remarks:

Relative extent of belt armor, 82 percent of 'typical' coverage.

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

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.

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


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 347 tons = 2 pct
Armor, total ..................... 2712 tons = 17 pct

Belt 1021 tons = 6 pct
Deck 922 tons = 6 pct
C.T. 109 tons = 1 pct
Armament 660 tons = 4 pct

Machinery ........................ 3119 tons = 20 pct
Hull and fittings; equipment ..... 6385 tons = 40 pct
Fuel, ammunition, stores ......... 3378 tons = 21 pct
Miscellaneous weights ............ 25 tons = 0 pct
-----
15966 tons = 100 pct

Estimated metacentric height, 4.9 ft

Displacement summary:

Light ship: 12588 tons
Standard displacement: 13139 tons
Normal service: 15966 tons
Full load: 18163 tons

Loading submergence 712 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.34

Shellfire needed to sink: 21594 lbs = 84.3 x 8.0-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 2.3
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 77 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.38

Relative quality as a seaboat: 1.92

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


Hull form characteristics:

Block coefficient: 0.602
Sharpness coefficient: 0.40
Hull speed coefficient 'M' = 6.12
'Natural speed' for length = 22.4 knots
Power going to wave formation
at top speed: 44 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 81 percent

Relative accommodation and working space: 134 percent


Displacement factor: 137 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.37
(Structure weight per square
foot of hull surface: 161 lbs)

Relative longitudinal hull strength: 2.61
(for 20.0 ft average freeboard;
freeboard adjustment +3.4 ft)

Relative composite hull strength: 1.46

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

Cruceros de segunda clase (Second Class Cruisers)

1913: Cíudad Rodrigo-class



PRS Cíudad Rodrigo (CL-5) - purchased from Italy December 1923

Length, 426.51 ft x Beam, 42.65 ft x Depth, 19.03 ft
130.00 m x 13.00 m x 5.80 m
4747 tons normal displacement (4452 tons standard)

Main battery: 10 x 6.00-inch / 152mm 45-cal (2 casemated)
QF battery: 10 x 2.24-inch / 57mm (casemated)
Light battery: 8 x 0.54-inch / 13.7mm

Weight of broadside: 1137 lbs

4 TT, 18.0" (submerged)

Main belt, 3.94 inches; bow and stern, 2.76 inches
Armor deck, average 1.18 inches
C.T., 3.94 inches

Battery armor:
Main, 0.78" shields


Maximum speed for 35363 shp = 28.00 knots
Approximate cruising radius, 6000 nm / 10 kts

Typical complement: 286-372


Estimated cost, $2.018 million (£504,000)

Remarks:

Oil firing.

Relative extent of belt armor, 132 percent of 'typical' coverage.

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

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


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 142 tons = 3 pct
Armor, total ..................... 904 tons = 19 pct

Belt 621 tons = 13 pct
Deck 243 tons = 5 pct
C.T. 24 tons = 1 pct
Armament 17 tons = 0 pct

Machinery ........................ 1384 tons = 29 pct
Hull and fittings; equipment ..... 1807 tons = 38 pct
Fuel, ammunition, stores ......... 485 tons = 10 pct
Miscellaneous weights ............ 25 tons = 1 pct
-----
4747 tons = 100 pct

Estimated metacentric height, 1.8 ft

Displacement summary:

Light ship: 4262 tons
Standard displacement: 4452 tons
Normal service: 4747 tons
Full load: 4965 tons

Loading submergence 318 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.13

Shellfire needed to sink: 3175 lbs = 29.4 x 6.0-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 0.7
(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, 0.42

Relative quality as a seaboat: 1.13

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


Hull form characteristics:

Block coefficient: 0.48
Sharpness coefficient: 0.32
Hull speed coefficient 'M' = 7.76
'Natural speed' for length = 20.7 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: 128 percent

Relative accommodation and working space: 119 percent


Displacement factor: 98 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.00
(Structure weight per square
foot of hull surface: 86 lbs)

Relative longitudinal hull strength: 1.84
(for 16.0 ft average freeboard;
freeboard adjustment +3.0 ft)

Relative composite hull strength: 1.07

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

Cruceros de acompañamiento (Escort Cruisers)

1915: Palawan-class

PRS Palawan (CE-1, ex CL-1)
PRS Leyte (CE-2, ex CL-2)
PRS Panay (CE-3, ex CL-3)
PRS Mindanao (CE-4, ex CL-4) - scrapped

Length, 321 ft x Beam, 56.0 ft x Depth, 21.0 ft
7065 tons normal displacement (4518 tons standard)

Main battery: 6 x 6.00-inch / 152mm (3 x 2, A-Q-X)
Secondary battery: 6 x 3.00-inch / 76mm
AA battery: 12 x 1.57-inch / 40mm

Weight of broadside: 752 lbs

8 TT, 21.0"

Main belt, 2.0 inches; bow and stern, 0.5 inches
Upper belt, 0.5 inches
Armor deck, average 1.0 inches
C.T., 5.0 inches

Battery armor:
Main, 4.0" / secondary, 2.0" shields
AA, 0.2" shields

Maximum speed for 32768 shp = 24.00 knots
Approximate cruising radius, 6000 nm / 21 kts

Typical complement: 385-501


Estimated cost, $2.349 million (£587,000)

Remarks:

Oil firing.

Relative extent of belt armor, 69 percent of 'typical' coverage.

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

Poor seaboat, wet and uncomfortable; reduced performance
in heavy weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 94 tons = 1 pct
Armor, total ..................... 681 tons = 10 pct

Belt 152 tons = 2 pct
Deck 250 tons = 4 pct
C.T. 40 tons = 1 pct
Armament 239 tons = 3 pct

Machinery ........................ 1241 tons = 18 pct
Hull and fittings; equipment ..... 2282 tons = 32 pct
Fuel, ammunition, stores ......... 2751 tons = 39 pct
Miscellaneous weights ............ 15 tons = 0 pct
-----
7065 tons = 100 pct

Estimated metacentric height, 2.6 ft

Displacement summary:

Light ship: 4314 tons
Standard displacement: 4518 tons
Normal service: 7065 tons
Full load: 9074 tons

Loading submergence 387 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.11

Shellfire needed to sink: 11239 lbs = 104.1 x 6.0-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 2.0
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 71 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.29

Relative quality as a seaboat: 0.93

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


Hull form characteristics:

Block coefficient: 0.655
Sharpness coefficient: 0.46
Hull speed coefficient 'M' = 5.12
'Natural speed' for length = 17.9 knots
Power going to wave formation
at top speed: 69 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 68 percent

Relative accommodation and working space: 90 percent


Displacement factor: 181 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.08
(Structure weight per square
foot of hull surface: 104 lbs)

Relative longitudinal hull strength: 4.07
(for 19.4 ft average freeboard;
freeboard adjustment +5.3 ft)

Relative composite hull strength: 1.23

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

This was the original layout of the design. Palawan was built to this configuration;
tests proved most unsatisfactory, so she was rebuilt to the plan above.

Length, 321 ft x Beam, 56.0 ft x Depth, 21.0 ft
7065 tons normal displacement (4547 tons standard)

Main battery: 3 x 9.40-inch / 240mm (3 x 1)
Secondary battery: 6 x 3.00-inch / 76mm
AA battery: 12 x 1.57-inch / 40mm

Weight of broadside: 1350 lbs

8 TT, 21.0"

Main belt, 2.0 inches; bow and stern, 0.5 inches
Upper belt, 0.5 inches
Armor deck, average 1.0 inches
C.T., 5.0 inches

Battery armor:
Main, 4.0" / secondary, 2.0" shields
AA, 0.5" shields

Maximum speed for 32768 shp = 24.00 knots
Approximate cruising radius, 6000 nm / 21 kts

Typical complement: 385-501


Estimated cost, $2.710 million (£678,000)

Remarks:

Oil firing.

Relative extent of belt armor, 77 percent of 'typical' coverage.

Poor seaboat, wet and uncomfortable; reduced performance
in heavy weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 169 tons = 2 pct
Armor, total ..................... 701 tons = 10 pct

Belt 169 tons = 2 pct
Deck 250 tons = 4 pct
C.T. 40 tons = 1 pct
Armament 241 tons = 3 pct

Machinery ........................ 1241 tons = 18 pct
Hull and fittings; equipment ..... 2168 tons = 31 pct
Fuel, ammunition, stores ......... 2771 tons = 39 pct
Miscellaneous weights ............ 15 tons = 0 pct
-----
7065 tons = 100 pct

Estimated metacentric height, 2.5 ft

Displacement summary:

Light ship: 4294 tons
Standard displacement: 4547 tons
Normal service: 7065 tons
Full load: 9050 tons

Loading submergence 387 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.10

Shellfire needed to sink: 9989 lbs = 24.1 x 9.4-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 1.7
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 70 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.52

Relative quality as a seaboat: 0.92

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


Hull form characteristics:

Block coefficient: 0.65
Sharpness coefficient: 0.46
Hull speed coefficient 'M' = 5.12
'Natural speed' for length = 17.9 knots
Power going to wave formation
at top speed: 69 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 76 percent

Relative accommodation and working space: 90 percent


Displacement factor: 156 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.95
(Structure weight per square
foot of hull surface: 99 lbs)

Relative longitudinal hull strength: 3.77
(for 19.4 ft average freeboard;
freeboard adjustment +5.3 ft)

Relative composite hull strength: 1.09

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

Cruceros del minado (Minelaying Cruisers)

None yet.

Cruceros del hidroavión (Seaplane Cruisers)

None yet.

Cruceros portaaviones (Aircraft-carrying Cruisers)

None yet.

(^ ignore the title)

Fragatas (Frigates)

None yet.

Destructores (Destroyers)

1912: Indomito-class



PRS Indomito (I-1) - purchased from Italy December 1923
PRS Impavido (I-2) - purchased from Italy December 1923
PRS Insidioso (I-3) - purchased from Italy December 1923
PRS Irrequieto (I-4) - purchased from Italy December 1923

Length, 260 ft x Beam, 26.0 ft x Depth, 10.8 ft
834 tons normal displacement (762 tons standard)

Main battery: 4 x 3.00-inch / 76.2mm
Light battery: 2 x 0.54-inch / 13.7mm

Weight of broadside: 54 lbs

3 TT, 18.0" (1 submerged)

Depth charges @ 550lb each: 30

Hull unarmored

Maximum speed for 25807 shp = 32.00 knots
Approximate cruising radius, 4000 nm / 10 kts

Typical complement: 78-101


Estimated cost, $391,000 (£98,000)

Remarks:

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

Oil firing.

Poor seaboat, wet and uncomfortable; reduced performance
in heavy weather.

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

Cramped ship; poor crew accommodation, limited working space.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 7 tons = 1 pct
Machinery ........................ 473 tons = 57 pct
Hull and fittings; equipment ..... 251 tons = 30 pct
Fuel, ammunition, stores ......... 93 tons = 11 pct
Miscellaneous weights ............ 10 tons = 1 pct
-----
834 tons = 100 pct

Estimated metacentric height, 1.1 ft

Displacement summary:

Light ship: 741 tons
Standard displacement: 762 tons
Normal service: 834 tons
Full load: 889 tons

Loading submergence 105 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.33

Shellfire needed to sink: 197 lbs = 14.6 x 3.0-inch 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, 50 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.09

Relative quality as a seaboat: 0.79

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


Hull form characteristics:

Block coefficient: 0.40
Sharpness coefficient: 0.30
Hull speed coefficient 'M' = 8.44
'Natural speed' for length = 16.1 knots
Power going to wave formation
at top speed: 71 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 200 percent

Relative accommodation and working space: 89 percent


Displacement factor: 39 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.59
(Structure weight per square
foot of hull surface: 33 lbs)

Relative longitudinal hull strength: 1.87
(for 11.68 ft average freeboard;
freeboard adjustment +2.48 ft)

Relative composite hull strength: 0.66

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

----------

1922: R-1-class (ex-torpedo boats)

PRS R-1 - sold to Yugoslavia 14 June 1924
PRS R-2 - sold to Yugoslavia 14 June 1924
PRS R-3 - sold to Yugoslavia 14 June 1924
PRS R-4
PRS R-5
PRS R-6 - scrapped
PRS R-7
PRS R-8
PRS R-9
PRS R-10 - sunk

Length, 235 ft x Beam, 23.5 ft x Depth, 11.0 ft
694 tons normal displacement (615 tons standard)

Main battery: 1 x 3.00-inch / 76mm
Secondary battery: 2 x 1.57-inch / 40mm

Weight of broadside: 17 lbs

8 TT, 18.0"

Hull unarmored

Battery armor:
Main, 1.0" shields / secondary, 0.5" shields


Maximum speed for 10415 shp = 26.25 knots
Approximate cruising radius, 1000 nm / 21 kts

Typical complement: 68-88


Estimated cost, $768,000 (£192,000)

Remarks:

Caution: Very cramped ship with excessively poor habitability;
lacks suitable working space.

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


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 2 tons = 0 pct
Armor, total ..................... 1 tons = 0 pct

Armament 1 tons = 0 pct

Machinery ........................ 340 tons = 49 pct
Hull and fittings; equipment ..... 256 tons = 37 pct
Fuel, ammunition, stores ......... 95 tons = 14 pct
Miscellaneous weights ............ 0 tons = 0 pct
-----
694 tons = 100 pct

Estimated metacentric height, 0.7 ft

Displacement summary:

Light ship: 600 tons
Standard displacement: 615 tons
Normal service: 694 tons
Full load: 755 tons

Loading submergence 85 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.14

Shellfire needed to sink: 320 lbs = 23.7 x 3.0-inch 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, 51 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.04

Relative quality as a seaboat: 1.01

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


Hull form characteristics:

Block coefficient: 0.40
Sharpness coefficient: 0.30
Hull speed coefficient 'M' = 8.11
'Natural speed' for length = 15.3 knots
Power going to wave formation
at top speed: 64 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 161 percent

Relative accommodation and working space: 22 percent


Displacement factor: 96 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.92
(Structure weight per square
foot of hull surface: 40 lbs)

Relative longitudinal hull strength: 2.47
(for 10.0 ft average freeboard;
freeboard adjustment +1.1 ft)

Relative composite hull strength: 1.02

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

----------

1923: Rabihorcado-class

PRS Rabihorcado (F-1)
PRS Alcatraz (F-2)
PRS Pelícano (F-3)
PRS Águila (F-4)
PRS Zampullín (F-5) - under construction
PRS Rabijunco (F-6) under construction
PRS Cormorán (F-7) under construction
Two additional ships planned

Length, 300 ft x Beam, 32.0 ft x Depth, 14.0 ft
1574 tons normal displacement (1450 tons standard)

Main battery: 2 x 4.00-inch / 102mm (2 x 1)
Secondary battery: 4 x 2.24-inch / 57mm
AA battery: 3 x 0.98-inch / 25mm
Light battery: 2 x 0.50-inch / 12.7mm (.54"/13.7mm on F-5 onwards)

Weight of broadside: 88 lbs

4 TT, 18.0"

Depth charges @ 550lb each: 40

Hull unarmored

Battery armor:
Main, 1.0" shields / secondary, 0.5" shields
AA, 0.25" shields

Maximum speed for 40017 shp = 32.76 knots
Approximate cruising radius, 4500 nm / 12 kts

Typical complement: 125-162


Estimated cost, $2.155 million (£539,000)

Remarks:

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

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

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


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 11 tons = 1 pct
Armor, total ..................... 13 tons = 1 pct

Armament 13 tons = 1 pct

Machinery ........................ 904 tons = 57 pct
Hull and fittings; equipment ..... 470 tons = 30 pct
Fuel, ammunition, stores ......... 164 tons = 10 pct
Miscellaneous weights ............ 12 tons = 1 pct
-----
1574 tons = 100 pct

Estimated metacentric height, 1.3 ft

Displacement summary:

Light ship: 1411 tons
Standard displacement: 1450 tons
Normal service: 1574 tons
Full load: 1668 tons

Loading submergence 151 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.25

Shellfire needed to sink: 412 lbs = 12.9 x 4.0-inch 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, 71 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.22

Relative quality as a seaboat: 1.09

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


Hull form characteristics:

Block coefficient: 0.41
Sharpness coefficient: 0.31
Hull speed coefficient 'M' = 7.88
'Natural speed' for length = 17.3 knots
Power going to wave formation
at top speed: 71 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 191 percent

Relative accommodation and working space: 109 percent


Displacement factor: 56 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.59
(Structure weight per square
foot of hull surface: 41 lbs)

Relative longitudinal hull strength: 2.40
(for 16.0 ft average freeboard;
freeboard adjustment +5.5 ft)

Relative composite hull strength: 0.68

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


Cazadores de submarinos (Subchasers)

None yet.

Submarinos (Submarines)

1924: Tiburón-class

PRS Tiburón (S-1)

Length, 225 ft x Beam, 20.0 ft x Depth, 12.5 ft
804 tons normal displacement (711 tons standard)

Main battery: 1 x 3.94-inch / 100mm
Light battery: 1 x 0.30-inch / 7.62mm

Weight of broadside: 30 lbs

6 TT, 21.0" (four bow, two stern)

Operational diving depth: 187 feet
Emergency diving depth: 299 feet
Crush depth: 467 feet

Maximum speed for 1318 shp = 15.00 knots
Approximate cruising radius, 7500 nm / 10 kts

Typical complement: 38


Estimated cost, $413,000 (£103,000)

Remarks:

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


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 4 tons = 0 pct
Machinery ........................ 43 tons = 5 pct
Hull and fittings; equipment ..... 455 tons = 57 pct
Fuel, ammunition, stores ......... 112 tons = 14 pct
Miscellaneous weights ............ 190 tons = 24 pct
-----
804 tons = 100 pct

Estimated metacentric height, 0.5 ft

Displacement summary:

Light ship: 692 tons
Standard displacement: 711 tons
Normal service: 804 tons
Full load: 875 tons

Loading submergence 81 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.01

Shellfire needed to sink: 300 lbs = 10.1 x 3.9-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 0.1
(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' = 7.39
'Natural speed' for length = 15.0 knots
Power going to wave formation
at top speed: 38 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 116 percent

Relative accommodation and working space: 1 percent


Displacement factor: 262 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 3.69
(Structure weight per square
foot of hull surface: 103 lbs)

Relative longitudinal hull strength: 1.50
(for 0.1 ft average freeboard;
freeboard adjustment -9.0 ft)

Relative composite hull strength: 1.87

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

Torpederos (Torpedo Boats) - "T"

1923: T-1-class

PRS T-1
PRS T-2
PRS T-3

Length, 181 ft x Beam, 17.7 ft x Depth, 7.5 ft
316 tons normal displacement (283 tons standard)

Main battery: 1 x 2.24-inch / 57mm
Light battery: 2 x 0.30-inch / 7.62mm

Weight of broadside: 6 lbs

4 TT, 18.0"

Hull unarmored

Battery armor:
Main, 0.5" shields


Maximum speed for 9954 shp = 27.90 knots
Approximate cruising radius, 4700 nm / 10 kts

Typical complement: 37-49


Estimated cost, $399,000 (£100,000)

Remarks:

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

Caution: Very cramped ship with excessively poor habitability;
lacks suitable working space.

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


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 1 tons = 0 pct
Machinery ........................ 171 tons = 54 pct
Hull and fittings; equipment ..... 104 tons = 33 pct
Fuel, ammunition, stores ......... 39 tons = 13 pct
Miscellaneous weights ............ 0 tons = 0 pct
-----
316 tons = 100 pct

Estimated metacentric height, 0.5 ft

Displacement summary:

Light ship: 276 tons
Standard displacement: 283 tons
Normal service: 316 tons
Full load: 341 tons

Loading submergence 54 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.12

Shellfire needed to sink: 108 lbs = 19.3 x 2.2-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 0.1
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 51 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.05

Relative quality as a seaboat: 1.02

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


Hull form characteristics:

Block coefficient: 0.46
Sharpness coefficient: 0.32
Hull speed coefficient 'M' = 8.12
'Natural speed' for length = 13.5 knots
Power going to wave formation
at top speed: 75 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 177 percent

Relative accommodation and working space: 39 percent


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


Relative cross-sectional hull strength: 0.60
(Structure weight per square
foot of hull surface: 24 lbs)

Relative longitudinal hull strength: 2.90
(for 11.0 ft average freeboard;
freeboard adjustment +3.4 ft)

Relative composite hull strength: 0.70

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

Monitores (Monitors)

None yet.


Canoñeros (Gunboats)

None yet.

Artes de patrulla (Patrol Boats)

1923: Abejorro-class

PRS Abejorro (P-1)
PRS Avispa (P-2) - under construction

Length, 230 ft x Beam, 25.5 ft x Depth, 7.5 ft
754 tons normal displacement (676 tons standard)

Main battery: 1 x 3.00-inch / 76mm
Light battery: 2 x 0.54-inch / 13.7mm

Weight of broadside: 14 lbs

Hull unarmored

Battery armor:
Main, 0.5" shields


Maximum speed for 1876 shp = 16.50 knots
Approximate cruising radius, 6500 nm / 10 kts

Typical complement: 72-94


Estimated cost, $388,000 (£97,000)

Remarks:

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

Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 2 tons = 0 pct
Machinery ........................ 63 tons = 8 pct
Hull and fittings; equipment ..... 445 tons = 59 pct
Fuel, ammunition, stores ......... 94 tons = 13 pct
Miscellaneous weights ............ 150 tons = 20 pct
-----
754 tons = 100 pct

Estimated metacentric height, 0.7 ft

Displacement summary:

Light ship: 660 tons
Standard displacement: 676 tons
Normal service: 754 tons
Full load: 813 tons

Loading submergence 119 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.02

Shellfire needed to sink: 1851 lbs = 137.1 x 3.0-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 1.2
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 75 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.03

Relative quality as a seaboat: 1.66

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


Hull form characteristics:

Block coefficient: 0.60
Sharpness coefficient: 0.38
Hull speed coefficient 'M' = 7.72
'Natural speed' for length = 15.2 knots
Power going to wave formation
at top speed: 48 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 52 percent

Relative accommodation and working space: 105 percent


Displacement factor: 260 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.84
(Structure weight per square
foot of hull surface: 67 lbs)

Relative longitudinal hull strength: 2.73
(for 9.5 ft average freeboard;
freeboard adjustment +0.5 ft)

Relative composite hull strength: 1.91

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

Dragaminas (Minewseepers)

None yet.


Dragaminas costeros (Coastal Minesweepers)

1923: MSC-1-class

PRS MSC-1 to MSC-9
Six additional boats planned

Length, 135 ft x Beam, 27.0 ft x Depth, 3.5 ft
219 tons normal displacement (196 tons standard)

Main battery: 1 x 1.57-inch / 40mm
Light battery: 1 x 0.30-inch / 7.62mm

Weight of broadside: 2 lbs

Hull unarmored

Maximum speed for 400 shp = 12.42 knots
Approximate cruising radius, 8200 nm / 7 kts

Typical complement: 28-37


Estimated cost, $108,000 (£27,000)

Remarks:

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

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:

Machinery ........................ 13 tons = 6 pct
Hull and fittings; equipment ..... 128 tons = 59 pct
Fuel, ammunition, stores ......... 27 tons = 13 pct
Miscellaneous weights ............ 50 tons = 23 pct
-----
219 tons = 100 pct

Estimated metacentric height, 0.9 ft

Displacement summary:

Light ship: 191 tons
Standard displacement: 196 tons
Normal service: 219 tons
Full load: 236 tons

Loading submergence 74 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.16

Shellfire needed to sink: 1024 lbs = 529.1 x 1.6-inch 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, 73 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.00

Relative quality as a seaboat: 1.52

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


Hull form characteristics:

Block coefficient: 0.60
Sharpness coefficient: 0.46
Hull speed coefficient 'M' = 6.84
'Natural speed' for length = 11.6 knots
Power going to wave formation
at top speed: 49 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 47 percent

Relative accommodation and working space: 156 percent


Displacement factor: 279 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.14
(Structure weight per square
foot of hull surface: 36 lbs)

Relative longitudinal hull strength: 4.26
(for 9.0 ft average freeboard;
freeboard adjustment +2.0 ft)

Relative composite hull strength: 1.30

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

Minadores (Minelayers)

1924: ML-1-class

PRS ML-1
Four additional boats planned

Identical in all respects to MSC-1-class minesweepers, with the exception of its load.

Portadores de hidroavión (Seaplane Carriers)

None yet.


Transportes (Transports)

None yet.


Buques Polares (Icebreakers)

None yet.


Petroleros (Oilers)

1924: Bambú-class

PRS Bambú - under construction in Italy

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:
348 - 453

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


Carboneros (Colliers) - "L"

None yet.

You know, I wouldn't be surprised if the "Fuel, ammunition, stores ......... 2751 tons = 39 pct " is the highest percentage on any Wes World Warship (WWW).

"If I knew then what I know now..." I'd have traded off some of that 6000@21 for some extra speed.

But then I couldn't classify them as escort cruisers.

It's not all about speed. You could increase armor. You could also make the ship smaller.