WesWorld

Repository for information pertaining to designs that were planned but not proceeded with; for historical information only.

It has been previously posted that the battlecruiser Samal would have been refitted during 1941; this will not be proceeded with. This proposed refit sim is provided for historical interest.

(Historical data)

Samal, Filipino Battlecruiser laid down 1925 (Engine 1941)

Displacement: 23,202 t light; 24,560 t standard; 26,408 t normal; 27,887 t full load

Dimensions: Length overall / water x beam x draught

752.68 ft / 750.00 ft x 79.99 ft (Bulges 91.21 ft) x 25.98 ft (normal load) [229.42 m / 228.60 m x 24.38 m (Bulges 27.80 m) x 7.92 m]

Armament:

6 - 13.39" / 340 mm guns (3x2 guns), 1,199.24lbs / 543.97kg shells, 1941 Model Breech loading guns in turrets (on barbettes) on centreline ends, majority forward, 1 raised mount - superfiring
10 - 6.10" / 155 mm guns (5x2 guns), 113.62lbs / 51.54kg shells, 1941 Model Breech loading guns in turrets (on barbettes) on side, all amidships, 1 raised mount - superfiring
24 - 4.53" / 115 mm guns (12x2 guns), 46.40lbs / 21.05kg shells, 1941 Model Dual purpose guns in deck mounts with hoists on side, evenly spread, 8 raised mounts
36 - 1.38" / 35.0 mm guns (12x3 guns), 1.31lbs / 0.59kg shells, 1941 Model Dual purpose guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 9,492 lbs / 4,306 kg
Shells per gun, main battery: 150

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 8.27" / 210 mm 551.18 ft / 168.00 m 10.73 ft / 3.27 m
Ends: Unarmoured
Upper: 1.57" / 40 mm 551.18 ft / 168.00 m 8.01 ft / 2.44 m
Main Belt covers 113 % of normal length

Torpedo Bulkhead and Bulges: 1.18" / 30 mm 551.18 ft / 168.00 m 23.33 ft / 7.11 m

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.27" / 210 mm 5.12" / 130 mm 8.27" / 210 mm
2nd: 2.95" / 75 mm 1.57" / 40 mm 2.95" / 75 mm
3rd: 1.18" / 30 mm 0.55" / 14 mm 0.59" / 15 mm
4th: 0.79" / 20 mm - -

Armour deck: 3.15" / 80 mm, Conning tower: 5.12" / 130 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 4 shafts, 149,981 shp / 111,885 Kw = 32.25 kts
Range 14,000nm at 12.00 kts
Bunker at max displacement = 3,327 tons

Complement: 1,035 - 1,346

Cost: £7.736 million / $30.943 million

Distribution of weights at normal displacement:

Armament: 1,187 tons, 4.5 %
Armour: 6,919 tons, 26.2 %
- Belts: 2,294 tons, 8.7 %
- Torpedo bulkhead: 562 tons, 2.1 %
- Armament: 1,593 tons, 6.0 %
- Armour Deck: 2,372 tons, 9.0 %
- Conning Tower: 98 tons, 0.4 %
Machinery: 3,964 tons, 15.0 %
Hull, fittings & equipment: 11,032 tons, 41.8 %
Fuel, ammunition & stores: 3,206 tons, 12.1 %
Miscellaneous weights: 100 tons, 0.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 31,775 lbs / 14,413 Kg = 26.5 x 13.4 " / 340 mm shells or 4.6 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 4.1 ft / 1.3 m
Roll period: 18.9 seconds
Steadiness - As gun platform (Average = 50 %): 66 %
- Recoil effect (Restricted arc if above 1.00): 0.65
Seaboat quality (Average = 1.00): 1.04

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.520
Length to Beam Ratio: 8.22 : 1
'Natural speed' for length: 27.39 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: -2.00 ft / -0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.61 ft / 9.33 m
- Forecastle (20 %): 22.51 ft / 6.86 m
- Mid (50 %): 21.49 ft / 6.55 m
- Quarterdeck (15 %): 21.49 ft / 6.55 m
- Stern: 21.49 ft / 6.55 m
- Average freeboard: 22.49 ft / 6.86 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 112.5 %
- Above water (accommodation/working, high = better): 162.8 %
Waterplane Area: 40,711 Square feet or 3,782 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 173 lbs/sq ft or 843 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.16
- Overall: 1.01
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

Armour belt is 210mm + 40mm decapping plate
AA weapons changed to more current 115mm and 35mm calibers and layout of medium AA changed to match Bohol.
Engine speed and range slightly increased.
Radar installed for aerial detection and gun direction.
New main guns without barbette alterations

Eight vessels of this class had been projected for construction in 1941. Due to changing requirements, this design will not be proceeded with, but is recorded for historical reference.


(Historical data)

Compostela, Filipino Gunboat laid down 1941

Displacement: 521 t light; 556 t standard; 596 t normal; 627 t full load

Dimensions: Length overall / water x beam x draught

173.50 ft / 171.98 ft x 27.99 ft x 9.84 ft (normal load) [52.88 m / 52.42 m x 8.53 m x 3.00 m]


Armament:

2 - 6.10" / 155 mm guns in single mounts, 113.62lbs / 51.54kg shells, 1941 Model Breech loading guns in deck mounts on centreline ends, evenly spread
4 - 2.24" / 57.0 mm guns in single mounts, 5.65lbs / 2.56kg shells, 1941 Model Quick firing guns in deck mounts on side, evenly spread
2 - 1.38" / 35.0 mm guns (1x2 guns), 1.31lbs / 0.59kg shells, 1941 Model Anti-aircraft guns in deck mount on centreline aft, all raised guns - superfiring
2 - 1.38" / 35.0 mm guns in single mounts, 1.31lbs / 0.59kg shells, 1941 Model Anti-aircraft guns in deck mounts on side, all aft
Weight of broadside 255 lbs / 116 kg
Shells per gun, main battery: 150

Armour:

Belts: Width (max) Length (avg) Height (avg)

Main: 3.94" / 100 mm 85.30 ft / 26.00 m 6.33 ft / 1.93 m
Ends: Unarmoured
Main Belt covers 76 % of normal length

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 1.57" / 40 mm - -
2nd: 1.57" / 40 mm - -
3rd: 0.79" / 20 mm - -
4th: 0.79" / 20 mm - -

Armour deck: 0.98" / 25 mm, Conning tower: 2.36" / 60 mm

Machinery:

Diesel Internal combustion motors, Geared drive, 2 shafts, 2,034 shp / 1,517 Kw = 18.00 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 71 tons

Complement: 59 - 78

Cost: £0.325 million / $1.300 million

Distribution of weights at normal displacement:

Armament: 32 tons, 5.4 %
Armour: 179 tons, 30.0 %
- Belts: 99 tons, 16.6 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 19 tons, 3.2 %
- Armour Deck: 58 tons, 9.7 %
- Conning Tower: 4 tons, 0.6 %
Machinery: 54 tons, 9.0 %
Hull, fittings & equipment: 247 tons, 41.5 %
Fuel, ammunition & stores: 74 tons, 12.4 %
Miscellaneous weights: 10 tons, 1.7 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 1,098 lbs / 498 Kg = 9.7 x 6.1 " / 155 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 1.1 ft / 0.3 m
Roll period: 11.0 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.32
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:

Hull has a flush deck and transom stern
Block coefficient: 0.440
Length to Beam Ratio: 6.15: 1
'Natural speed' for length: 15.77 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 44
Bow angle (Positive = bow angles forward): 6.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 14.44 ft / 4.40 m
- Forecastle (20 %): 9.19 ft / 2.80 m
- Mid (50 %): 9.19 ft / 2.80 m
- Quarterdeck (15 %): 9.19 ft / 2.80 m
- Stern: 9.19 ft / 2.80 m
- Average freeboard: 9.61 ft / 2.93 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 73.2 %
- Above water (accommodation/working, high = better): 93.8 %
Waterplane Area: 3,163 Square feet or 294 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 48-lbs/sq ft or 234 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 4.64
- Overall: 1.15
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate

Twelve vessels of this class had been projected for construction in 1941. Due to changing requirements, this design will not be proceeded with, but is recorded for historical reference.


(Historical data)

Displacement: 301 t light; 322 t standard; 352 t normal; 376 t full load

Dimensions: Length overall / water x beam x draught

213.05 ft / 209.97 ft x 20.34 ft x 5.25 ft (normal load) [64.94 m / 64.00 m x 6.20 m x 1.60 m]

Armament:

2 - 4.53" / 115 mm guns in single mounts, 46.40lbs / 21.05kg shells, 1941 Model Dual purpose guns in deck mounts with hoists on centreline ends, evenly spread
2 - 1.38" / 35.0 mm guns in single mounts, 1.31lbs / 0.59kg shells, 1941 Model Anti-aircraft guns in deck mounts on side, evenly spread
6 - 0.59" / 15.0 mm guns (2x3 guns), 0.10lbs / 0.05kg shells, 1941 Model Machine guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 96 lbs / 44 kg
Shells per gun, main battery: 250

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.59" / 15 mm 0.79" / 20 mm
2nd: 0.39" / 10 mm - -

Machinery:

Diesel Internal combustion motors, Geared drive, 1 shaft, 2,520 shp / 1,880 Kw = 20.00 kts
Range 3,000nm at 12.00 kts
Bunker at max displacement = 54 tons

Complement: 39 - 52

Cost: £0.185 million / $0.741 million

Distribution of weights at normal displacement:

Armament: 12 tons, 3.4 %
Armour: 6 tons, 1.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 6 tons, 1.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 67 tons, 18.9 %
Hull, fittings & equipment: 192 tons, 54.5 %
Fuel, ammunition & stores: 51 tons, 14.4 %
Miscellaneous weights: 25 tons, 7.1 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 531 lbs / 241 Kg = 11.4 x 4.5 " / 115 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 0.6 ft / 0.2 m
Roll period: 11.5 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.70
Seaboat quality (Average = 1.00): 1.07

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 10.32: 1
'Natural speed' for length: 14.49 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 11.48 ft / 3.50 m
- Forecastle (20 %): 9.02 ft / 2.75 m
- Mid (60 %): 7.05 ft / 2.15 m
- Quarterdeck (15 %): 7.05 ft / 2.15 m
- Stern: 7.05 ft / 2.15 m
- Average freeboard: 8.04 ft / 2.45 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 97.3 %
- Above water (accommodation/working, high = better): 108.1 %
Waterplane Area: 2,891 Square feet or 269 Square metres
Displacement factor (Displacement / loading): 136 %
Structure weight / hull surface area: 39-lbs/sq ft or 189 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 2.10
- Overall: 1.07
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate

10 tons= 40 DC
10 tons= sonar
5 tons= DC rails & Equipment

The records indicate that a plan had been drawn up for the refitting of the aircraft-carrying cruiser Sulu to a proper aircraft carrier. Those plans did not proceed and the vessel was sold to Bharat in January 1942. The proposed plan is noted for historical interest.

(Historical data)

Sulu, Filipino Aircraft Carrier laid down 1927

Displacement: 12,683 t light; 13,083 t standard; 14,627 t normal; 15,862 t full load

Dimensions: Length overall / water x beam x draught

678.32 ft / 665.85 ft x 74.11 ft x 20.34 ft (normal load) [206.75 m / 202.95 m x 22.59 m x 6.20 m]

Armament:

16 - 4.53" / 115 mm guns (8x2 guns), 46.40lbs / 21.05kg shells, 1941 Model Dual purpose guns in deck mounts with hoists on side, evenly spread, all raised mounts
12 - 1.38" / 35.0 mm guns (4x3 guns), 1.31lbs / 0.59kg shells, 1941 Model Anti-aircraft guns in deck mounts on side ends, evenly spread, all raised mounts - superfiring
6 - 0.59" / 15.0 mm guns (2x3 guns), 0.10lbs / 0.05kg shells, 1927 Model Machine guns in deck mounts on side, evenly spread, all raised mounts
12 - 0.59" / 15.0 mm guns (4x3 guns), 0.10lbs / 0.05kg shells, 1927 Model Machine guns in deck mounts on side ends, evenly spread
Weight of broadside 760 lbs / 345 kg
Shells per gun, main battery: 250

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 419.49 ft / 127.86 m 10.33 ft / 3.15 m
Ends: Unarmoured
Upper: 1.97" / 50 mm 419.49 ft / 127.86 m 8.01 ft / 2.44 m
Main Belt covers 97 % of normal length

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.59" / 15 mm 0.98" / 25 mm
2nd: 0.98" / 25 mm - -
3rd: 0.59" / 15 mm - -
4th: 0.59" / 15 mm - -

Armour deck: 1.57" / 40 mm, Conning tower: 3.15" / 80 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 4 shafts, 104,370 shp / 77,860 Kw = 32.01 kts
Range 14,875nm at 12.00 kts
Bunker at max displacement = 2,779 tons

Complement: 664 - 864

Cost: £3.582 million / $14.326 million

Distribution of weights at normal displacement:
Armament: 95 tons, 0.6 %
Armour: 1,907 tons, 13.0 %
- Belts: 856 tons, 5.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 43 tons, 0.3 %
- Armour Deck: 967 tons, 6.6 %
- Conning Tower: 41 tons, 0.3 %
Machinery: 3,295 tons, 22.5 %
Hull, fittings & equipment: 5,386 tons, 36.8 %
Fuel, ammunition & stores: 1,944 tons, 13.3 %
Miscellaneous weights: 2,000 tons, 13.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,416 lbs / 8,354 Kg = 396.9 x 4.5 " / 115 mm shells or 2.1 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 4.1 ft / 1.2 m
Roll period: 15.5 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.12
Seaboat quality (Average = 1.00): 1.10

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.510
Length to Beam Ratio: 8.98 : 1
'Natural speed' for length: 25.80 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.26 ft / 7.70 m
- Forecastle (27 %): 22.74 ft / 6.93 m
- Mid (87 %): 15.16 ft / 4.62 m
- Quarterdeck (10 %): 15.16 ft / 4.62 m
- Stern: 15.16 ft / 4.62 m
- Average freeboard: 19.75 ft / 6.02 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 93.8 %
- Above water (accommodation/working, high = better): 178.6 %
Waterplane Area: 33,182 Square feet or 3,083 Square metres
Displacement factor (Displacement / loading): 130 %
Structure weight / hull surface area: 112 lbs/sq ft or 547 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.10
- Longitudinal: 1.10
- Overall: 1.10
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

1600 tons= 40 aircrafts
400 tons = Radar, Misc. stuff
Two triple 155mm are removed, barbettes retained. Bomb hoists installed in barbette area.
Flight deck extended aft
Torpedo tubes eliminated.
refurbishment of internal fittings for life extension

It was planned to refit the six vessels of the Cantore/Santelmo class during 1942. This plan will not proceed. The sim is provided for historical interest.

Refit Santelmo Class

Santelmo, Philippines Destroyer laid down 1922 (Engine 1942)

Displacement: 1,467 t light; 1,547 t standard; 1,678 t normal; 1,784 t full load

Dimensions: Length overall / water x beam x draught

365.49 ft / 357.61 ft x 35.76 ft x 11.48 ft (normal load) [111.40 m / 109.00 m x 10.90 m x 3.50 m]

Armament:

4 - 4.53" / 115 mm guns (2x2 guns), 46.40lbs / 21.05kg shells, 1942 Model Dual purpose guns in deck mounts with hoists on centreline ends, evenly spread
2 - 2.24" / 57.0 mm guns (1x2 guns), 5.65lbs / 2.56kg shells, 1942 Model Dual purpose guns in deck mount on centreline amidships, all raised guns - superfiring
16 - 1.38" / 35.0 mm guns (4x4 guns), 1.31lbs / 0.59kg shells, 1942 Model Anti-aircraft guns in deck mounts on side, evenly spread
Weight of broadside 218 lbs / 99 kg
Shells per gun, main battery: 350
4 - 24.0" / 610 mm above water torpedoes

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.79" / 20 mm 0.39" / 10 mm 0.59" / 15 mm
2nd: 0.39" / 10 mm - -

Conning tower: 2.76" / 70 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 40,363 shp / 30,111 Kw = 33.50 kts
Range 8,000nm at 10.00 kts
Bunker at max displacement = 237 tons

Complement: 130 - 170

Cost: £0.520 million / $2.079 million

Distribution of weights at normal displacement:

Armament: 27 tons, 1.6 %
Armour: 16 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 7 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 8 tons, 0.5 %
Machinery: 831 tons, 49.5 %
Hull, fittings & equipment: 533 tons, 31.8 %
Fuel, ammunition & stores: 212 tons, 12.6 %
Miscellaneous weights: 60 tons, 3.6 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 504 lbs / 229 Kg = 10.9 x 4.5 " / 115 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.33
Metacentric height 1.8 ft / 0.5 m
Roll period: 11.3 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.26
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:

Hull has rise forward of midbreak
Block coefficient: 0.400
Length to Beam Ratio: 10.00: 1
'Natural speed' for length: 18.91 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 54
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.65 ft / 6.60 m
- Forecastle (20 %): 21.00 ft / 6.40 m
- Mid (40 %): 21.00 ft / 6.40 m (11.15 ft / 3.40 m aft of break)
- Quarterdeck (15 %): 11.15 ft / 3.40 m
- Stern: 11.15 ft / 3.40 m
- Average freeboard: 15.14 ft / 4.62 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 177.9 %
- Above water (accommodation/working, high = better): 117.5 %
Waterplane Area: 7,872 Square feet or 731 Square metres
Displacement factor (Displacement / loading): 70 %
Structure weight / hull surface area: 35 lbs/sq ft or 173 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.87
- Overall: 0.57
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate

40t for FC and Air Detection Radar
20t for Misc items

After the then-under construction battlecruiser Bohol was heavily damaged during the Revolution, there were some proposals to convert her into an aircraft carrier, while others supported pushing ahead with the original design. This proposal for a hybrid "Battlecarrier" mounting the forward main guns and an aft flight deck was briefly considered.

PRS Lingayan (ex-Bohol), Filipino Battlecarrier laid down 1926 (Engine 1931)

Displacement: 25,000 t light; 26,155 t standard; 28,725 t normal; 30,782 t full load

Dimensions: Length overall / water x beam x draught

802.63 ft / 800.00 ft x 80.00 ft (Bulges 91.20 ft) x 26.50 ft (normal load) [244.64 m / 243.84 m x 24.38 m (Bulges 27.80 m) x 8.08 m]

Air Group: 36 aircraft

Armament:

4 - 12.60" / 320 mm guns (2x2 guns), 1,050.00lbs / 476.27kg shells, 1926 Model Breech loading guns in turrets (on barbettes) on centreline, all forward, 1 raised mount - superfiring
6 - 5.90" / 150 mm guns in single mounts, 106.92lbs / 48.50kg shells, 1931 Model Breech loading guns in casemate mounts on side, all aft
8 - 2.95" / 75.0 mm guns (4x2 guns), 13.00lbs / 5.90kg shells, 1926 Model Dual purpose guns in deck mounts with hoists on side, all amidships, all raised mounts - superfiring
2 - 2.95" / 75.0 mm guns (1x2 guns), 13.00lbs / 5.90kg shells, 1926 Model Dual purpose guns in a deck mount with hoist on side aft, all raised guns
8 - 1.38" / 25.0 mm guns (4x2 guns), 1.32lbs / 0.60kg shells, 1931 Model Anti-aircraft guns in deck mounts on side, evenly spread, 2 raised mounts
Weight of broadside 4,982 lbs / 2,260 kg
Shells per gun, main battery: 200
8 - 24.0" / 610 mm above water torpedoes

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 9.84" / 250 mm 584.81 ft / 178.25 m 11.48 ft / 3.50 m
Ends: Unarmoured
Upper: 1.57" / 40 mm 550.03 ft / 167.65 m 17.22 ft / 5.25 m
Main Belt covers 112 % of normal length

Torpedo Bulkhead and Bulges: 1.57" / 40 mm 584.81 ft / 178.25 m 24.61 ft / 7.50 m

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 9.84" / 250 mm 5.12" / 130 mm 8.27" / 210 mm
2nd: 3.15" / 80 mm 1.97" / 50 mm 1.97" / 50 mm
3rd: 1.18" / 30 mm 0.59" / 15 mm 0.98" / 25 mm
4th: 1.18" / 30 mm 0.59" / 15 mm 0.98" / 25 mm
5th: 0.79" / 20 mm - -

Armour deck: 3.94" / 100 mm, Conning tower: 3.15" / 80 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 4 shafts, 150,000 shp / 111,900 Kw = 32.09 kts
Range 10,535nm at 15.00 kts (Bunkerage = 4,626 tons)

Complement: 1,103 - 1,434

Cost: £6.939 million / $27.755 million

Distribution of weights at normal displacement:

Armament: 602 tons, 2.1 %
Armour: 8,282 tons, 28.8 %
- Belts: 3,322 tons, 11.6 %
- Torpedo bulkhead: 838 tons, 2.9 %
- Armament: 895 tons, 3.1 %
- Armour Deck: 3,163 tons, 11.0 %
- Conning Tower: 64 tons, 0.2 %
Machinery: 4,486 tons, 15.6 %
Hull, fittings & equipment: 10,005 tons, 34.8 %
Fuel, ammunition & stores: 3,725 tons, 13.0 %
Miscellaneous weights: 1,625 tons, 5.7 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):
30,212 lbs / 13,704 Kg = 30.2 x 12.6 " / 320 mm shells or 4.0 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 4.9 ft / 1.5 m
Roll period: 17.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.31
Seaboat quality (Average = 1.00): 1.23

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.520
Length to Beam Ratio: 8.77: 1
'Natural speed' for length: 28.28 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: -2.00 ft / -0.61 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): 99.2 %
- Above water (accommodation/working, high = better): 141.3 %
Waterplane Area: 43,432 Square feet or 4,035 Square metres
Displacement factor (Displacement / loading): 121 %
Structure weight / hull surface area: 147-lbs/sq ft or 717 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.00
- 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

Misc weight
1300t...36 aircraft
50t...Flag facilities
50t...Climatisation
225t...?

This was another of the vessels whose construction was prevented by the 1928-1929 civil war; originally she was merely suspended, but later cancelled outright.

Sabtang, Filipino Training Cruiser laid down 1929

Displacement: 1,803 t light; 1,902 t standard; 2,362 t normal; 2,730 t full load

Dimensions: Length overall / water x beam x draught

353.40 ft / 344.49 ft x 40.19 ft x 11.48 ft (normal load) [107.71 m / 105.00 m x 12.25 m x 3.50 m]

Armament:

6 - 5.12" / 130 mm guns (3x2 guns), 70.00lbs / 31.75kg shells, 1925 Model Quick firing guns in deck mounts with hoists on centreline ends, majority forward, 1 raised mount - superfiring
2 - 2.95" / 75.0 mm guns (1x2 guns), 13.00lbs / 5.90kg shells, 1926 Model Dual purpose guns in a deck mount with hoist on centreline aft, all raised guns - superfiring
2 - 1.38" / 35.0 mm guns in single mounts, 1.32lbs / 0.60kg shells, 1930 Model Anti-aircraft guns in deck mounts on side, all forward, all raised mounts
8 - 0.54" / 13.7 mm guns (2x4 guns), 0.11lbs / 0.05kg shells, 1925 Model Anti-aircraft guns in deck mounts on side, all aft, all raised mounts
8 - 0.54" / 13.7 mm guns (4x2 guns), 0.11lbs / 0.05kg shells, 1925 Model Machine guns in deck mounts on side, evenly spread
Weight of broadside 450 lbs / 204 kg
Shells per gun, main battery: 200

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm 1.18" / 30 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm 0.98" / 25 mm
3rd: 0.79" / 20 mm - -
4th: 0.59" / 15 mm - -

Conning tower: 3.15" / 80 mm

Machinery:

Diesel Internal combustion generators, Electric motors, 2 shafts, 15,000 shp / 11,190 Kw = 24.41 kts
Range 8,275nm at 15.00 kts (Bunkerage = 828 tons)

Complement: 169 - 220

Cost: £0.692 million / $2.767 million

Distribution of weights at normal displacement:

Armament: 54 tons, 2.3 %
Armour: 44 tons, 1.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 32 tons, 1.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 12 tons, 0.5 %
Machinery: 461 tons, 19.5 %
Hull, fittings & equipment: 1,029 tons, 43.6 %
Fuel, ammunition & stores: 559 tons, 23.7 %
Miscellaneous weights: 215 tons, 9.1 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 3,611 lbs / 1,638 Kg = 53.9 x 5.1 " / 130 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 1.6 ft / 0.5 m
Roll period: 13.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.54
Seaboat quality (Average = 1.00): 1.35

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.520
Length to Beam Ratio: 8.57 : 1
'Natural speed' for length: 18.56 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 52
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (20 %): 15.09 ft / 4.60 m
- Mid (50 %): 14.44 ft / 4.40 m
- Quarterdeck (15 %): 14.44 ft / 4.40 m
- Stern: 14.44 ft / 4.40 m
- Average freeboard: 15.14 ft / 4.61 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 91.9 %
- Above water (accommodation/working, high = better): 154.5 %
Waterplane Area: 9,396 Square feet or 873 Square metres
Displacement factor (Displacement / loading): 146 %
Structure weight / hull surface area: 66 lbs/sq ft or 321 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.36
- 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

Misc weight:

175t cadets' quarters
25t climatisation
15t flag facilities

These, the long-rumoured 'Antarctic Battleships' were in fact rather small Escort Cruisers. Scheduled for keellaying in 1929 as escorts to the explorer Pacifica, they were first delayed by the Greco coup, then cancelled in favour of a single, larger ship which would use the engines and main armament already contracted for these vessels.

PRS Bacolod (CE-6), PRS Loaita (CE-7), Filipino Escort Cruisers laid down 1929

Displacement: 3,962 t light; 4,175 t standard; 4,798 t normal; 5,297 t full load

Dimensions: Length overall / water x beam x draught

327.46 ft / 311.68 ft x 54.79 ft x 18.04 ft (normal load) [99.81 m / 95.00 m x 16.70 m x 5.50 m]

Armament:

6 - 6.10" / 155 mm guns (2x3 guns), 120.00lbs / 54.43kg shells, 1926 Model Breech loading guns in turrets (on barbettes) on centreline ends, evenly spread
4 - 3.94" / 100 mm guns (2x2 guns), 32.00lbs / 14.51kg shells, 1923 Model Dual purpose guns in deck mounts with hoists on centreline ends, evenly spread, all raised mounts
4 - 3.94" / 100 mm guns (2x2 guns), 32.00lbs / 14.51kg shells, 1923 Model Dual purpose guns in deck mounts with hoists on side, all amidships
6 - 0.98" / 25.0 mm guns (2x3 guns), 0.57lbs / 0.26kg shells, 1925 Model Anti-aircraft guns in deck mounts on side, all aft, all raised mounts - superfiring
8 - 0.54" / 13.7 mm guns (2x4 guns), 0.11lbs / 0.05kg shells, 1925 Model Anti-aircraft guns in deck mounts on side, all forward, all raised mounts - superfiring
Weight of broadside 980 lbs / 445 kg
Shells per gun, main battery: 200

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 311.68 ft / 95.00 m 10.66 ft / 3.25 m
Upper: 0.98" / 25 mm 311.68 ft / 95.00 m 9.84 ft / 3.00 m
Main Belt covers 154 % of normal length

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 6.10" / 155 mm 3.94" / 100 mm 4.92" / 125 mm
2nd: 1.18" / 30 mm 0.59" / 15 mm 0.98" / 25 mm
3rd: 1.18" / 30 mm 0.59" / 15 mm 0.98" / 25 mm
4th: 0.59" / 15 mm - -
5th: 0.59" / 15 mm - -

Armour deck: 3.15" / 80 mm, Conning tower: 3.15" / 80 mm

Machinery:

Diesel Internal combustion generators, Electric motors, 2 shafts, 12,500 shp / 9,325 Kw = 20.40 kts
Range 12,500nm at 12.00 kts (Bunkerage = 1,122 tons)

Complement: 287 - 374

Cost: £1.160 million / $4.640 million

Distribution of weights at normal displacement:

Armament: 116 tons, 2.4 %
Armour: 1,629 tons, 33.9 %
- Belts: 693 tons, 14.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 226 tons, 4.7 %
- Armour Deck: 691 tons, 14.4 %
- Conning Tower: 19 tons, 0.4 %
Machinery: 384 tons, 8.0 %
Hull, fittings & equipment: 1,783 tons, 37.2 %
Fuel, ammunition & stores: 836 tons, 17.4 %
Miscellaneous weights: 50 tons, 1.0 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 11,199 lbs / 5,080 Kg = 98.6 x 6.1 " / 155 mm shells or 2.8 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 2.6 ft / 0.8 m
Roll period: 14.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.36
Seaboat quality (Average = 1.00): 1.35

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.545
Length to Beam Ratio: 5.69 : 1
'Natural speed' for length: 17.65 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 52
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.65 ft / 6.60 m
- Forecastle (18 %): 18.04 ft / 5.50 m
- Mid (50 %): 14.76 ft / 4.50 m
- Quarterdeck (18 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 16.12 ft / 4.91 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 47.8 %
- Above water (accommodation/working, high = better): 122.7 %
Waterplane Area: 11,862 Square feet or 1,102 Square metres
Displacement factor (Displacement / loading): 142 %
Structure weight / hull surface area: 98 lbs/sq ft or 478 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 3.55
- Overall: 1.14
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

25t special underwater protection
25t winterization

This 'no main battery' development of the Indian-built carrier Sulu was scheduled for construction in 1929, but was cancelled on account of revolution.

[Historical data]

Tayabas, Filipino aircraft carrier, laid down 1929

Displacement: 12,675 t light; 13,028 t standard; 14,627 t normal; 15,906 t full load

Dimensions: Length overall / water x beam x draught

678.32 ft / 665.85 ft x 74.11 ft x 20.34 ft (normal load) [206.75 m / 202.95 m x 22.59 m x 6.20 m]

Air group: 45 aircraft

Armament:

20 - 3.94" / 100 mm guns (10x2 guns), 32.00lbs / 14.51kg shells, 1923 Model Dual purpose guns in deck mounts with hoists on side, evenly spread, all raised mounts
6 - 2.24" / 57.0 mm guns (3x2 guns), 6.00lbs / 2.72kg shells, 1923 Model Dual purpose guns in deck mounts with hoists on side, all amidships, all raised mounts - 1 superfiring
18 - 0.98" / 25.0 mm guns (6x3 guns), 0.57lbs / 0.26kg shells, 1925 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
8 - 0.54" / 13.7 mm guns (2x4 guns), 0.11lbs / 0.05kg shells, 1925 Model Machine guns in deck mounts on side, all aft
8 - 0.54" / 13.7 mm guns (2x2, 4x1 guns), 0.11lbs / 0.05kg shells, 1925 Model Machine guns in deck mounts on side, evenly spread, 2 raised mounts
Weight of broadside 688 lbs / 312 kg
Shells per gun, main battery: 150

4 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 419.95 ft / 128.00 m 10.66 ft / 3.25 m
Ends: Unarmoured
Upper: 1.97" / 50 mm 492.13 ft / 150.00 m 17.22 ft / 5.25 m
Main Belt covers 97 % of normal length

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.59" / 15 mm 0.98" / 25 mm
2nd: 0.98" / 25 mm - 0.98" / 25 mm
3rd: 0.59" / 15 mm - -
4th: 0.59" / 15 mm - -

Armour deck: 1.57" / 40 mm, Conning tower: 3.15" / 80 mm

Machinery:

Oil fired boilers, steam turbines, Geared drive, 4 shafts, 107,500 shp / 80,195 Kw = 32.25 kts
Range 15,750nm at 12.00 kts (Bunkerage = 2,878 tons)

Complement: 664 - 864

Cost: £3.898 million / $15.593 million

Distribution of weights at normal displacement:

Armament: 82 tons, 0.6 %
Armour: 2,340 tons, 16.0 %
- Belts: 1,283 tons, 8.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 50 tons, 0.3 %
- Armour Deck: 967 tons, 6.6 %
- Conning Tower: 41 tons, 0.3 %
Machinery: 3,302 tons, 22.6 %
Hull, fittings & equipment: 4,877 tons, 33.3 %
Fuel, ammunition & stores: 1,951 tons, 13.3 %
Miscellaneous weights: 2,075 tons, 14.2 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 17,795 lbs / 8,072 Kg = 583.2 x 3.9 " / 100 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 4.0 ft / 1.2 m
Roll period: 15.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.11
Seaboat quality (Average = 1.00): 1.09

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.510
Length to Beam Ratio: 8.98: 1
'Natural speed' for length: 25.80 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.26 ft / 7.70 m
- Forecastle (27 %): 22.74 ft / 6.93 m
- Mid (87 %): 15.16 ft / 4.62 m
- Quarterdeck (10 %): 15.16 ft / 4.62 m
- Stern: 15.16 ft / 4.62 m
- Average freeboard: 19.75 ft / 6.02 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 96.3 %
- Above water (accommodation/working, high = better): 178.6 %
Waterplane Area: 33,182 Square feet or 3,083 Square metres
Displacement factor (Displacement / loading): 125 %
Structure weight / hull surface area: 101 lbs/sq ft or 495 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.00
- 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

After the loss of Mindoro and Mindanao, it was proposed to use turrets recovered from the ships to equip a new Escort Cruiser. However the MdF decided not to pursue this concept; the 8" turret was mounted in coastal artillery, while the 6" guns were refurbished and stored, eventually being mounted in the "assault transport" Balabac.

[Historical data]

Marinduque, Filipino escort cruiser, laid down 1927

Displacement: 3,951 t light; 4,160 t standard; 4,659 t normal; 5,057 t full load

Dimensions: Length overall / water x beam x draught

383.12 ft / 374.02 ft x 49.21 ft x 19.69 ft (normal load) [116.77 m / 114.00 m x 15.00 m x 6.00 m]

Armament:

2 - 8.00" / 203 mm guns (1x2 guns), 259.99lbs / 117.93kg shells, 1901 Model Breech loading guns in a turret (on a barbette) on centreline forward
4 - 6.00" / 152 mm guns (2x2 guns), 108.00lbs / 48.99kg shells, 1919 ModelQuick firing guns in turrets (on barbettes) on centreline, all aft, 1 raised mount - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 32.00lbs / 14.51kg shells, 1923 Model Dual purpose guns in deck mounts with hoists on side, evenly spread, 2 raised mounts
4 - 2.24" / 57.0 mm guns in single mounts, 6.00lbs / 2.72kg shells, 1923 Model Dual purpose guns in deck mounts on side, evenly spread, all raised mounts
6 - 0.98" / 25.0 mm guns (2x3 guns), 0.57lbs / 0.26kg shells, 1925 Model Anti-aircraft guns in deck mounts on side, all amidships, all raised mounts - superfiring
Weight of broadside 1,235 lbs / 560 kg
Shells per gun, main battery: 150
4 - 24.0" / 610 mm above water torpedoes

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 5.12" / 130 mm 163.55 ft / 49.85 m 8.53 ft / 2.60 m
Ends: Unarmoured
Main Belt covers 67 % of normal length

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 9.00" / 229 mm 5.00" / 127 mm 5.12" / 130 mm
2nd: 4.00" / 102 mm 2.00" / 51 mm 5.12" / 130 mm
3rd: 1.18" / 30 mm - -
4th: 0.55" / 14 mm - -

Armour deck: 2.17" / 55 mm, Conning tower: 2.56" / 65 mm

Machinery:

Diesel Internal combustion motors, Geared drive, 3 shafts, 18,551 shp / 13,839 Kw = 23.50 kts
Range 10,000nm at 12.00 kts (Bunkerage = 897 tons)

Complement: 281 - 366

Cost: £1.264 million / $5.058 million

Distribution of weights at normal displacement:

Armament: 152 tons, 3.3 %
Armour: 1,139 tons, 24.4 %
- Belts: 331 tons, 7.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 321 tons, 6.9 %
- Armour Deck: 470 tons, 10.1 %
- Conning Tower: 15 tons, 0.3 %
Machinery: 586 tons, 12.6 %
Hull, fittings & equipment: 2,066 tons, 44.3 %
Fuel, ammunition & stores: 707 tons, 15.2 %
Miscellaneous weights: 10 tons, 0.2 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 8,219 lbs / 3,728 Kg = 32.1 x 8.0 " / 203 mm shells or 1.8 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 1.9 ft / 0.6 m
Roll period: 14.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.83
Seaboat quality (Average = 1.00): 1.88

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.450
Length to Beam Ratio: 7.60 : 1
'Natural speed' for length: 19.34 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 37
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.00 ft / 7.62 m
- Forecastle (28 %): 22.00 ft / 6.71 m
- Mid (50 %): 17.00 ft / 5.18 m
- Quarterdeck (28 %): 17.00 ft / 5.18 m
- Stern: 17.00 ft / 5.18 m
- Average freeboard: 19.29 ft / 5.88 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 67.3 %
- Above water (accommodation/working, high = better): 116.8 %
Waterplane Area: 11,741 Square feet or 1,091 Square metres
Displacement factor (Displacement / loading): 132 %
Structure weight / hull surface area: 93 lbs/sq ft or 456 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 4.33
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

The armoured cruiser Mindoro was intended to be converted to an experimental aircraft carrier in 1925, however while clearing the ship in preparation for conversion she was the (first) victim of the SALSA anarchist attack of October 1924.

[Historical data]

Mindoro, Filipino CVX, laid down 1901, converted 1925 (original engines)

Displacement: 12,347 t light; 12,690 t standard; 15,966 t normal; 18,586 t full load

Dimensions: Length overall / water x beam x draught

504.00 ft / 504.00 ft x 69.50 ft x 26.50 ft (normal load) [153.62 m / 153.62 m x 21.18 m x 8.08 m]

Air group: 24 aircraft

Armament:

4 - 3.94" / 100 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1923 Model Quick firing guns in deck mounts with hoists on side ends, evenly spread
12 - 1.57" / 40.0 mm guns (6x2 guns), 2.00lbs / 0.91kg shells, 1918 Model Anti-aircraft guns in deck mounts on side, evenly spread
4 - 0.98" / 25.0 mm guns in single mounts, 0.57lbs / 0.26kg shells, 1925 Model Anti-aircraft guns in deck mounts on side, evenly spread
4 - 0.54" / 13.7 mm guns in single mounts, 0.11lbs / 0.05kg shells, 1925 Model Machine guns in deck mounts on side, evenly spread
Weight of broadside 155 lbs / 70 kg
Shells per gun, main battery: 250

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 8.00" / 203 mm 267.12 ft / 81.42 m 10.00 ft / 3.05 m
Ends: 2.00" / 51 mm 236.86 ft / 72.19 m 10.00 ft / 3.05 m
Main Belt covers 82 % of normal length

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.59" / 15 mm 0.98" / 25 mm
2nd: 0.79" / 20 mm - -
3rd: 0.59" / 15 mm - -

Armour deck: 2.00" / 51 mm

Machinery:

Oil fired boilers, complex reciprocating steam engines, Direct drive, 2 shafts, 20,263 ihp / 15,117 Kw = 20.00 kts
Range 7,500nm at 17.00 kts (Bunkerage = 5,896 tons)

Complement: 709 - 923

Cost: £0.844 million / $3.378 million

Distribution of weights at normal displacement:
Armament: 18 tons, 0.1 %
Armour: 2,101 tons, 13.2 %
- Belts: 1,139 tons, 7.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 13 tons, 0.1 %
- Armour Deck: 950 tons, 5.9 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 2,834 tons, 17.8 %
Hull, fittings & equipment: 4,893 tons, 30.6 %
Fuel, ammunition & stores: 3,619 tons, 22.7 %
Miscellaneous weights: 2,500 tons, 15.7 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):
23,362 lbs / 10,597 Kg = 765.7 x 3.9 " / 100 mm shells or 2.5 torpedoes
Stability (Unstable if below 1.00): 1.29
Metacentric height 4.6 ft / 1.4 m
Roll period: 13.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has rise forward of midbreak
Block coefficient: 0.602
Length to Beam Ratio: 7.25 : 1
'Natural speed' for length: 22.45 kts
Power going to wave formation at top speed: 44 %
Trim (Max stability = 0, Max steadiness = 100): 35
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: 26.00 ft / 7.92 m
- Forecastle (24 %): 23.00 ft / 7.01 m
- Mid (70 %): 21.00 ft / 6.40 m (14.00 ft / 4.27 m aft of break)
- Quarterdeck (24 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 20.13 ft / 6.14 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 76.4 %
- Above water (accommodation/working, high = better): 145.5 %
Waterplane Area: 25,667 Square feet or 2,385 Square metres
Displacement factor (Displacement / loading): 153 %
Structure weight / hull surface area: 122 lbs/sq ft or 596 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.25
- Longitudinal: 2.15
- Overall: 1.32
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

This vessel was proposed for construction in 1941; due to changing requirements, it was not laid down. The sim is presented for historical interest.

(Historical data)

Cocos, Philippines Oiler laid down 1941

Displacement: 11,986 t light; 12,306 t standard; 14,888 t normal; 16,954 t full load

Dimensions: Length overall / water x beam x draught

552.48 ft / 547.90 ft x 68.90 ft x 25.10 ft (normal load) [168.40 m / 167.00 m x 21.00 m x 7.65 m]

Armament:

4 - 4.53" / 115 mm guns in single mounts, 46.40lbs / 21.05kg shells, 1941 Model Dual purpose guns in deck mounts with hoists on centreline, all aft
6 - 1.38" / 35.0 mm guns (2x3 guns), 1.31lbs / 0.59kg shells, 1941 Model Anti-aircraft guns in deck mounts on side, evenly spread
6 - 0.59" / 15.0 mm guns (2x3 guns), 0.10lbs / 0.05kg shells, 1941 Model Breech loading guns in deck mounts on side, evenly spread
Weight of broadside 194 lbs / 88 kg
Shells per gun, main battery: 200

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.79" / 20 mm -
2nd: 0.39" / 10 mm - -
3rd: 0.39" / 10 mm - -

Machinery:

Oil fired boilers, steam turbines, Geared drive, 2 shafts, 18,710 shp / 13,958 Kw = 20.00 kts
Range 30,000nm at 12.00 kts
Bunker at max displacement = 4,648 tons

Complement: 673 - 876

Cost: £3.147 million / $12.589 million

Distribution of weights at normal displacement:

Armament: 24 tons, 0.2 %
Armour: 14 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 14 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 494 tons, 3.3 %
Hull, fittings & equipment: 4,454 tons, 29.9 %
Fuel, ammunition & stores: 2,902 tons, 19.5 %
Miscellaneous weights: 7,000 tons, 47.0 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 21,702 lbs / 9,844 Kg = 467.7 x 4.5 " / 115 mm shells or 3.0 torpedoes
Stability (Unstable if below 1.00): 1.01
Metacentric height 2.9 ft / 0.9 m
Roll period: 17.0 seconds
Steadiness - As gun platform (Average = 50 %): 49 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.60

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 7.95 : 1
'Natural speed' for length: 23.41 kts
Power going to wave formation at top speed: 38 %
Trim (Max stability = 0, Max steadiness = 100): 30
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.98 ft / 7.92 m
- Forecastle (20 %): 16.99 ft / 5.18 m
- Mid (50 %): 16.99 ft / 5.18 m
- Quarterdeck (15 %): 16.99 ft / 5.18 m
- Stern: 16.99 ft / 5.18 m
- Average freeboard: 17.71 ft / 5.40 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 64.0 %
- Above water (accommodation/working, high = better): 126.7 %
Waterplane Area: 26,345 Square feet or 2,448 Square metres
Displacement factor (Displacement / loading): 182 %
Structure weight / hull surface area: 111 lbs/sq ft or 542 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.20
- Longitudinal: 1.55
- Overall: 1.23
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

2000t =Refueling Equipment and Misc
5000t =fuel