WesWorld

A run of eight gunboats to replace older ships will enter production in 1941. A slightly faster La Union type gunboat.

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

OOC: The installation of new 340mm guns is a 50% refit IIRC so mind as well change the engine also.


50% life extension refit of the Samal planned for 1941 after newer BC enters service.

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.

OOC: The removal of the 155mm guns is a 50% refit IIRC so mind as well change the engine also.

50% life extension refit of the carrier Sulu.

Sulu, Filipino Aircraft Carrier laid down 1927 (Engine 1941)

Displacement:
12,771 t light; 13,171 t standard; 14,627 t normal; 15,792 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, 117,993 shp / 88,023 Kw = 33.00 kts
Range 16,000nm at 12.00 kts
Bunker at max displacement = 2,620 tons

Complement:
664 - 864

Cost:
£3.503 million / $14.012 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: 3,118 tons, 21.3 %
Hull, fittings & equipment: 5,651 tons, 38.6 %
Fuel, ammunition & stores: 1,856 tons, 12.7 %
Miscellaneous weights: 2,000 tons, 13.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
19,097 lbs / 8,662 Kg = 411.5 x 4.5 " / 115 mm shells or 2.2 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 4.0 ft / 1.2 m
Roll period: 15.6 seconds
Steadiness - As gun platform (Average = 50 %): 65 %
- Recoil effect (Restricted arc if above 1.00): 0.11
Seaboat quality (Average = 1.00): 1.02

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: 56 %
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): 89.9 %
- Above water (accommodation/working, high = better): 178.6 %
Waterplane Area: 33,182 Square feet or 3,083 Square metres
Displacement factor (Displacement / loading): 134 %
Structure weight / hull surface area: 118 lbs/sq ft or 574 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.14
- Longitudinal: 1.16
- Overall: 1.14
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

1600 tons= 40 aircrafts
400 tons = Radar, Misc. stuff
Two triple 155mm are eliminated
Flight deck extended aft
Torpedo tubes eliminated.
refurbishment of internal fittings for life extension
new engine that slightly increases speed and range

Quoted

Originally posted by perdedor99
OOC: The removal of the 155mm guns is a 50% refit IIRC so mind as well change the engine also.

Only if you're removing the barbettes, iirc. You could retain the barbette structures and install something else within the cylinders, and the flight deck over them; Shinano had bomb hoists installed in her barbettes.

Quoted

Originally posted by ShinRa_Inc

Quoted

Originally posted by perdedor99
OOC: The removal of the 155mm guns is a 50% refit IIRC so mind as well change the engine also.

Only if you're removing the barbettes, iirc. You could retain the barbette structures and install something else within the cylinders, and the flight deck over them; Shinano had bomb hoists installed in her barbettes.

Um! Doing this will save at least 3000 tons and the increase in speed and range is almost nothing with new engines. Will play with it to see how it looks.

You would, however, need to include the weight of the armoured barbettes in the sim somehow, probably as miscellaneous weight.

a 25% refit as recommended by Shinra.

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

Quoted

Originally posted by ShinRa_Inc
You would, however, need to include the weight of the armoured barbettes in the sim somehow, probably as miscellaneous weight.

The 25 tons could be included in the misc. stuff mentioned in the report. Save some money for other projects. Thanks for the recommendation.

I would clarify the report from the 155mm being "eliminated" to "Guns removed, Barbettes retained". And specify if there's anything being housed in that space, of if it's a vacant area now.

And while the flight deck can be extended over them, hangar space (obviously) cannot be expanded aft.

The gun boats look nice although I would have used a smaller main gun caliber probably. It´s pretty heavy. Do you have something in the 120mm range or 80mm twins instead? Might allow you to increase shell number per gun also as 150 is pretty low for such a vessel.

Quoted

Originally posted by HoOmAn
The gun boats look nice although I would have used a smaller main gun caliber probably. It´s pretty heavy. Do you have something in the 120mm range or 80mm twins instead? Might allow you to increase shell number per gun also as 150 is pretty low for such a vessel.

I got planned another run of eight ships with a 115mm main gun instead for later. The current ships filling the gunboat niche were bulit between 1925 and 1927. Is cheaper to built new to replace and maintain numbers.

I'm going through the Filipino encyclopedia to see which ships need replacement or refits.

To replace the current subchasers that have an average between 13 to 15 years in service. A run of twelve is planned.

Isla , Filipino Subchaser laid down 1941

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

How exactly do you fit a 340 mm turret in a barbette designed for a 320 mm turret? Seems like that would be too difficult, unless the guns were being rebored.

Fast Oiler to supplement the oiler Bambu

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