WesWorld

As suggested, I've tweaked the 'old' Philippine Navy designs a bit. Tonnage has remained the same (OK, +/- 10 tons light displacement in a few cases).

Filipino Manila-class Pre-dreadnought Battleship, laid down 1898

This was the only design left untouched.

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


Ships
PRS Manila
PRS Angeles

---------------------

Filipino Luzon-class Armored Cruiser, laid down 1901

Armour modified. Noticed that the % for magazines and engineering
was 81% in my design vs 125.8% in the original...?

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

Main battery: 4 x 8.0-inch (2 x 2)
Secondary battery: 14 x 6.0-inch
QF battery: 18 x 3.0-inch (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

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

Ships
PRS Luzon - refit 1923
PRS Mindoro

-----------

Filipino Palawan-class light cruiser, laid down 1915

Modified for superfiring turret and reduced armour

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

Main battery: 6 x 6.0-inch (3 x 2; 1 superfiring)
Secondary battery: 6 x 3.0-inch
AA battery: 12 x 1.6-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"
AA, 0.3" 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 ..................... 715 tons = 10 pct

Belt 152 tons = 2 pct
Deck 250 tons = 4 pct
C.T. 40 tons = 1 pct
Armament 273 tons = 4 pct

Machinery ........................ 1241 tons = 18 pct
Hull and fittings; equipment ..... 2264 tons = 32 pct
Fuel, ammunition, stores ......... 2751 tons = 39 pct
Miscellaneous weights ............ 0 tons = 0 pct
-----
7065 tons = 100 pct

Estimated metacentric height, 2.4 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: 1.07

Shellfire needed to sink: 11059 lbs = 102.4 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, 0.30

Relative quality as a seaboat: 0.92

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


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: 180 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.05
(Structure weight per square
foot of hull surface: 103 lbs)

Relative longitudinal hull strength: 3.96
(for 19.4 ft average freeboard;
freeboard adjustment +5.3 ft)

Relative composite hull strength: 1.20

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

Ships
PRS Palawan
PRS Panay
PRS Mindanao
PRS Leyte
PRS Negros (CANCELLED)
PRS Basilan (CANCELLED)

-----------

Filipino D-1 class destroyer, laid down 1905

This design is extremely unseaworthy, and to fix that would require
major changes. Instead I've decided to make its seaworthiness, or lack
therof, part of the storyline.

Length, 238 ft x Beam, 29.0 ft x Depth, 12.0 ft
1302 tons normal displacement (1138 tons standard)

Main battery: 2 x 4.0-inch
Secondary battery: 4 x 1.6-inch (40mm)
QF battery: 3 x 1.0-inch (25mm)

Weight of broadside: 73 lbs

4 TT, 18.0"

Hull unarmored
C.T., 0.5 inches

Battery armor:
Main, 1.0" shields / secondary, 0.5" shields
QF, 0.2" shields

Maximum speed for 27163 shp = 29.00 knots
Approximate cruising radius, 3500 nm / 10 kts

Typical complement: 108-141


Estimated cost, $683,000 (£171,000)

Remarks:

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

Caution: lacks seaworthiness -- very limited seakeeping ability.

Caution: Magazines and engineering spaces are very cramped,
and lack adequate watertight subdivision.

Caution: Delicate, lightwight machinery.

Ship has quick, 'lively' roll; not a steady gun platform.

Cramped ship; poor crew accommodation, limited working space.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 9 tons = 1 pct
Armor, total ..................... 4 tons = 0 pct

C.T. 1 tons = 0 pct
Armament 3 tons = 0 pct

Machinery ........................ 889 tons = 68 pct
Hull and fittings; equipment ..... 204 tons = 16 pct
Fuel, ammunition, stores ......... 195 tons = 15 pct
Miscellaneous weights ............ 0 tons = 0 pct
-----
1302 tons = 100 pct

Estimated metacentric height, 2.1 ft

Displacement summary:

Light ship: 1106 tons
Standard displacement: 1138 tons
Normal service: 1302 tons
Full load: 1427 tons

Loading submergence 132 tons/foot

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.83

Shellfire needed to sink: 181 lbs = 5.6 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, 21 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.04

Relative quality as a seaboat: 0.17

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


Hull form characteristics:

Block coefficient: 0.55
Sharpness coefficient: 0.37
Hull speed coefficient 'M' = 6.65
'Natural speed' for length = 15.4 knots
Power going to wave formation
at top speed: 76 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 225 percent

Relative accommodation and working space: 58 percent


Displacement factor: 28 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.47
(Structure weight per square
foot of hull surface: 25 lbs)

Relative longitudinal hull strength: 1.11
(for 10.1 ft average freeboard)

Relative composite hull strength: 0.51

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

Ships
PRS D-1 to D-9
(D-1 refit 1923)

-----------

Filipino F-1-class destroyer, laid down 1923

Secondary guns' caliber changed.

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

Main battery: 2 x 4.0-inch (2 x 1)
Secondary battery: 4 x 2.2-inch (57mm)
AA battery: 3 x 1.0-inch (25mm)

Weight of broadside: 88 lbs

4 TT, 18.0"

Hull unarmored

Battery armor:
Main, 1.0" / secondary, 0.5" shields
AA, 0.2" shields

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

Typical complement: 125-162


Estimated cost, $2.159 million (£540,000)

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 ........................ 907 tons = 58 pct
Hull and fittings; equipment ..... 480 tons = 30 pct
Fuel, ammunition, stores ......... 164 tons = 10 pct
Miscellaneous weights ............ 0 tons = 0 pct
-----
1574 tons = 100 pct

Estimated metacentric height, 1.4 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: 1.26

Shellfire needed to sink: 424 lbs = 13.2 x 4.0-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, 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: 102 percent


Displacement factor: 57 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.60
(Structure weight per square
foot of hull surface: 41 lbs)

Relative longitudinal hull strength: 2.45
(for 16.0 ft average freeboard;
freeboard adjustment +5.5 ft)

Relative composite hull strength: 0.69

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

Ships
PRS F-1 (under construction)
PRS F-2 to F-3 (ordered)

---

Filipino R-1-class torpedo boat, laid down 1923

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

Main battery: 1 x 3.0-inch
Secondary battery: 2 x 1.6-inch

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

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

Ships
PRS R-1 to R-10

Laid down in 1915 and featuring all (superfiring) twin turrets your cruisers are now way ahead of their time...

I hadn´t noticed their date when first looking at them. :o/

Well, looks like the Filipinos (or whoever build those vessels for them) made something right. Sometimes (technical) breakthroughs come by coincidence...

Regards,

HoOmAn

I agree, twin 6" turrets super-emposed is around 15 years ahead of its time! Atlantis has only just laid down two cruisers with super-emposed twin turrets and thats with the larger 8" caliber. Even then they are around 2/3 years ahead of their time.

Aside from the Paliwan class cruisers the rest of the fleet seems on par for the time.

I wondered 'bout that. I think there are three options:

1. Move the date up a bit - it seems to me a bit odd that the first-of-class would be laid down in '15 but no more until '22;

2. Change the turret arrangement to A-Q-X;

3. Wink, nod, and move on

I think perhaps a combo of (1) (1919 maybe?) and (2) would be best, whaddya you think?

Perhaps there were some funding or technical issues that caused a substantial delay in construction. For example, perhaps the original design plan called for three larger single guns, with one superfiring, but trials of the lead unit demonstrated that it didn't work, causing work on the rest of the class to be delayed while alternatives were sought.

Well, I could say I don´t care as the RSAN can crush the Filipinos anyday with eyes closed and a hand tied to her back - but that would hardly solve your problem. ;o)

I think 2) is the most interesting variant as there never existed such a cruiser in the real world. Could make an interesting drawing...

Greets,

HoOmAn

my vote goes to (2) as well, it's weird and interesting ;-)

Here's Palawan Mk III. Turrets are A-Q-X. (If anyone who is more, ah, graphically gifted than I wishes to make a drawing, feel free.)

Thanks, Rocky, for the suggestion re: development delays; I see the first-of-class having 3 x 9.4" guns, but tests proved that this was less than optimal, and Palawan was rebuilt to this configuration.

Palawan, Filipino light cruiser, as rebuilt 1919

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

Main battery: 6 x 6.0-inch (3 x 2)
Secondary battery: 6 x 3.0-inch
AA battery: 12 x 1.6-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

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

And here she is as originally constructed:

Palawan, Filipino light cruiser, as commissioned 1917 (laid down 1915)

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

Main battery: 3 x 9.4-inch (3 x 1)
Secondary battery: 6 x 3.0-inch
AA battery: 12 x 1.6-inch

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

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