WesWorld

Chakri Nareubet, Thai (ex-Danish) Light Cruiser laid down 1910 (Engine 1932)



Displacement:
6,081 t light; 6,340 t standard; 7,956 t normal; 9,249 t full load

Dimensions: Length overall / water x beam x draught
458.11 ft / 450.00 ft x 70.00 ft x 20.00 ft (normal load)
139.63 m / 137.16 m x 21.34 m x 6.10 m

Armament:
8 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1910 Model
Breech loading guns in deck mounts with hoists
on side, evenly spread
6 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1910 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
6 - 2.24" / 57.0 mm guns (3x2 guns), 6.00lbs / 2.72kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
4 - 0.79" / 20.0 mm guns (1x4 guns), 0.24lbs / 0.11kg shells, 1932 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
8 - 0.51" / 13.0 mm guns (4x2 guns), 0.07lbs / 0.03kg shells, 1932 Model
Breech loading guns in deck mounts
on side, all amidships, all raised mounts

Weight of broadside 983 lbs / 446 kg
Shells per gun, main battery: 175

2 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.50" / 64 mm 292.50 ft / 89.15 m 10.00 ft / 3.05 m
Ends: 1.25" / 32 mm 157.50 ft / 48.01 m 10.00 ft / 3.05 m
Upper: 0.75" / 19 mm 292.50 ft / 89.15 m 8.00 ft / 2.44 m
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.50" / 38 mm 1.50" / 38 mm 0.50" / 13 mm
2nd: 0.50" / 13 mm - -
3rd: 0.50" / 13 mm - -
4th: 0.25" / 6 mm - -
5th: 0.25" / 6 mm - -

- Armour deck: 1.75" / 44 mm, Conning tower: 2.50" / 64 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 60,000 shp / 44,760 Kw = 29.31 kts
Range 15,100nm at 15.00 kts (Bunkerage = 2,909 tons)

Complement:
420 - 547

Cost:
£0.564 million / $2.255 million

Distribution of weights at normal displacement:
Armament: 123 tons, 1.5 %
Armour: 1,199 tons, 15.1 %
- Belts: 464 tons, 5.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 67 tons, 0.8 %
- Armour Deck: 646 tons, 8.1 %
- Conning Tower: 21 tons, 0.3 %
Machinery: 1,771 tons, 22.3 %
Hull, fittings & equipment: 2,888 tons, 36.3 %
Fuel, ammunition & stores: 1,875 tons, 23.6 %
Miscellaneous weights: 100 tons, 1.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12,637 lbs / 5,732 Kg = 117.0 x 6.0 " / 152 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.30
Metacentric height 4.7 ft / 1.4 m
Roll period: 13.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.15
Seaboat quality (Average = 1.00): 1.10

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.442
Length to Beam Ratio: 6.43 : 1
'Natural speed' for length: 21.21 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: -5.00 ft / -1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.25 ft / 9.22 m
- Forecastle (20 %): 26.50 ft / 8.08 m
- Mid (50 %): 22.75 ft / 6.93 m (15.25 ft / 4.65 m aft of break)
- Quarterdeck (15 %): 15.25 ft / 4.65 m
- Stern: 15.25 ft / 4.65 m
- Average freeboard: 20.61 ft / 6.28 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86.3 %
- Above water (accommodation/working, high = better): 169.5 %
Waterplane Area: 19,964 Square feet or 1,855 Square metres
Displacement factor (Displacement / loading): 137 %
Structure weight / hull surface area: 96 lbs/sq ft or 466 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- 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

One unit

Maha Chakrkri, Siam light cruiser laid down 1914

Displacement:
3,612 t light; 3,750 t standard; 4,532 t normal; 5,157 t full load

Dimensions: Length overall / water x beam x draught
420.00 ft / 420.00 ft x 41.50 ft x 16.25 ft (normal load)
128.02 m / 128.02 m x 12.65 m x 4.95 m

Armament:
4 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1930 Model
Quick firing guns in deck mounts
on centreline, evenly spread, 2 raised mounts
Aft Main mounts separated by engine room
4 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1936 Model
Quick firing guns in deck mounts
on side, all amidships
6 - 2.24" / 57.0 mm guns (3x2 guns), 5.65lbs / 2.56kg shells, 1935 Model
Dual purpose guns in deck mounts
on centreline, evenly spread, all raised mounts
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.24lbs / 0.11kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 459 lbs / 208 kg
Shells per gun, main battery: 166
6 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 330.00 ft / 100.58 m 8.00 ft / 2.44 m
Ends: 2.50" / 64 mm 90.00 ft / 27.43 m 8.00 ft / 2.44 m
Main Belt covers 121 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm - -
2nd: 1.00" / 25 mm - -
3rd: 0.50" / 13 mm - -
4th: 0.50" / 13 mm - -

- Armour deck: 1.00" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 38,408 shp / 28,652 Kw = 28.50 kts
Range 7,070nm at 15.00 kts
Bunker at max displacement = 1,407 tons

Complement:
276 - 359

Cost:
£0.486 million / $1.943 million

Distribution of weights at normal displacement:
Armament: 57 tons, 1.3 %
Armour: 650 tons, 14.3 %
- Belts: 388 tons, 8.6 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 35 tons, 0.8 %
- Armour Deck: 227 tons, 5.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,479 tons, 32.6 %
Hull, fittings & equipment: 1,415 tons, 31.2 %
Fuel, ammunition & stores: 920 tons, 20.3 %
Miscellaneous weights: 10 tons, 0.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,140 lbs / 1,878 Kg = 78.5 x 4.7 " / 120 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.42
Metacentric height 2.5 ft / 0.7 m
Roll period: 11.1 seconds
Steadiness - As gun platform (Average = 50 %): 61 %
- Recoil effect (Restricted arc if above 1.00): 0.14
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.560
Length to Beam Ratio: 10.12 : 1
'Natural speed' for length: 20.49 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 24.00 ft / 7.32 m
- Forecastle (30 %): 22.00 ft / 6.71 m (14.00 ft / 4.27 m aft of break)
- Mid (50 %): 14.00 ft / 4.27 m
- Quarterdeck (15 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 16.64 ft / 5.07 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 116.3 %
- Above water (accommodation/working, high = better): 90.5 %
Waterplane Area: 12,279 Square feet or 1,141 Square metres
Displacement factor (Displacement / loading): 111 %
Structure weight / hull surface area: 63 lbs/sq ft or 307 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.85
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily

Four units: Maha Chakrkri, Bangkok, Sattahip, Phucket
Refit by Kaiser Kirk

CLAA II, Thai Anti-Aircraft Cruiser, laid down 1939

Displacement:
5,000 t light; 5,250 t standard; 6,069 t normal; 6,724 t full load

Dimensions: Length overall / water x beam x draught
530.00 ft / 520.00 ft x 52.00 ft x 14.70 ft (normal load)
161.54 m / 158.50 m x 15.85 m x 4.48 m

Armament:
10 - 4.72" / 120 mm guns (5x2 guns), 52.72lbs / 23.92kg shells, 1939 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 3 raised mounts - superfiring
2 - 2.24" / 57.0 mm guns (1x2 guns), 5.65lbs / 2.56kg shells, 1939 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
8 - 2.24" / 57.0 mm guns (4x2 guns), 5.65lbs / 2.56kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
2 - 0.79" / 20.0 mm guns (1x2 guns), 0.24lbs / 0.11kg shells, 1939 Model
Machine guns in deck mount
on centreline forward, all raised guns - superfiring
16 - 0.79" / 20.0 mm guns (4x4 guns), 0.24lbs / 0.11kg shells, 1939 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 588 lbs / 267 kg
Shells per gun, main battery: 375
6 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 377.30 ft / 115.00 m 9.00 ft / 2.74 m
Ends: Unarmoured
Main Belt covers 112 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 1.18" / 30 mm 1.97" / 50 mm

- Armour deck: 1.38" / 35 mm, Conning tower: 3.00" / 76 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 57,941 shp / 43,224 Kw = 32.00 kts
Range 5,000nm at 20.00 kts
Bunker at max displacement = 1,474 tons

Complement:
343 - 446

Cost:
£2.654 million / $10.618 million

Distribution of weights at normal displacement:
Armament: 74 tons, 1.2 %
Armour: 982 tons, 16.2 %
- Belts: 418 tons, 6.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 49 tons, 0.8 %
- Armour Deck: 493 tons, 8.1 %
- Conning Tower: 22 tons, 0.4 %
Machinery: 1,568 tons, 25.8 %
Hull, fittings & equipment: 2,327 tons, 38.3 %
Fuel, ammunition & stores: 1,069 tons, 17.6 %
Miscellaneous weights: 50 tons, 0.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
9,141 lbs / 4,146 Kg = 173.4 x 4.7 " / 120 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 2.6 ft / 0.8 m
Roll period: 13.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.33
Seaboat quality (Average = 1.00): 1.17

Hull form characteristics:
Hull has rise forward of midbreak, low quarterdeck
and transom stern
Block coefficient: 0.534
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 25.92 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 60
Bow angle (Positive = bow angles forward): 21.80 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 (20 %): 23.00 ft / 7.01 m
- Mid (50 %): 22.00 ft / 6.71 m (18.00 ft / 5.49 m aft of break)
- Quarterdeck (35 %): 15.00 ft / 4.57 m (18.00 ft / 5.49 m before break)
- Stern: 15.00 ft / 4.57 m
- Average freeboard: 19.46 ft / 5.93 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 96.0 %
- Above water (accommodation/working, high = better): 191.2 %
Waterplane Area: 19,355 Square feet or 1,798 Square metres
Displacement factor (Displacement / loading): 128 %
Structure weight / hull surface area: 75 lbs/sq ft or 366 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 1.53
- Overall: 0.90
Caution: Hull subject to strain in open-sea
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

One unit under construction. Designed by Brock

Seuxpa (ex Hrvatska) Thai (ex Yugoslavian) Light Cruiser, laid down 1916

Displacement: 4.033 t light; 4.190 t standard; 4.881 t normal; 5.413 t full load

Dimensions: Length overall / water x beam x draught
429,41 ft / 425,00 ft x 43,50 ft x 16,50 ft (normal load)
130,88 m / 129,54 m x 13,26 m x 5,03 m

Armament:
5 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1916 Model Breech loading guns in deck mounts on centreline ends, majority forward, 2 raised mounts - superfiring
4 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1916 Model Anti-aircraft guns in deck mounts on side, all amidships
4 - 1,57" / 40,0 mm guns (1x4 guns), 1,95lbs / 0,88kg shells, 1916 Model Anti-aircraft guns in deck mount on centreline aft
4 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1916 Model Anti-aircraft guns in deck mounts on side, evenly spread
Weight of broadside 677 lbs / 307 kg
Shells per gun, main battery: 150
8 - 21,0" / 533,4 mm above water torpedoes

Armour:

- Belts: Width (max) Length (avg) Height (avg)
Main: 3,00" / 76 mm 360,00 ft / 109,73 m 9,00 ft / 2,74 m
Ends: 2,50" / 64 mm 65,00 ft / 19,81 m 8,00 ft / 2,44 m
Main Belt covers 130 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3,00" / 76 mm - -
2nd: 1,00" / 25 mm - -
3rd: 0,50" / 13 mm - -
4th: 0,50" / 13 mm - -

- Armour deck: 1,00" / 25 mm

Machinery:

Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 43.296 shp / 32.299 Kw = 29,00 kts
Range 6.430nm at 15,00 kts (Bunkerage = 1.243 tons)

Complement: 291 - 379

Cost: £0,717 million / $2,867 million

Distribution of weights at normal displacement:
Armament: 85 tons, 1,7 %
Armour: 730 tons, 14,9 %
- Belts: 439 tons, 9,0 %
- Torpedo bulkhead: 0 tons, 0,0 %
- Armament: 57 tons, 1,2 %
- Armour Deck: 234 tons, 4,8 %
- Conning Tower: 0 tons, 0,0 %
Machinery: 1.613 tons, 33,1 %
Hull, fittings & equipment: 1.566 tons, 32,1 %
Fuel, ammunition & stores: 848 tons, 17,4 %
Miscellaneous weights: 40 tons, 0,8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3.992 lbs / 1.811 Kg = 37,0 x 6,0 " / 152 mm shells or 0,8 torpedoes
Stability (Unstable if below 1.00): 1,37
Metacentric height 2,5 ft / 0,8 m
Steadiness - As gun platform (Average = 50 %): 63 %
- Recoil effect (Restricted arc if above 1.00): 0,20
Seaboat quality (Average = 1.00): 1,26

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0,560
Length to Beam Ratio: 9,77 : 1
'Natural speed' for length: 20,62 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 25,00 ft / 7,62 m
- Forecastle (35 %): 23,00 ft / 7,01 m (14,50 ft / 4,42 m aft of break)
- Mid (50 %): 14,50 ft / 4,42 m
- Quarterdeck (15 %): 14,50 ft / 4,42 m
- Stern: 14,50 ft / 4,42 m
- Average freeboard: 17,76 ft / 5,41 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 121,6 %
- Above water (accommodation/working, high = better): 84,3 %
Waterplane Area: 12.653 Square feet or 1.176 Square metres
Displacement factor (Displacement / loading): 104 %
Structure weight / hull surface area: 66 lbs/sq ft or 321 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,92
- Longitudinal: 2,13
- Overall: 1,00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Good seaboat, rides out heavy weather easily

One unit
Simmer unknown

Taksin Class, Thailand Light Cruiser laid down 1948


Displacement:
4,434 t light; 4,617 t standard; 5,038 t normal; 5,376 t full load


Dimensions: Length overall / water x beam x draught
475.00 ft / 475.00 ft x 45.00 ft x 15.00 ft (normal load)
144.78 m / 144.78 m x 13.72 m x 4.57 m


Armament:
6 - 5.91" / 150 mm guns (3x2 guns), 102.98lbs / 46.71kg shells, 1948 Model
Quick firing guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 30.51lbs / 13.84kg shells, 1948 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.88kg shells, 1948 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread
Weight of broadside 893 lbs / 405 kg
Shells per gun, main battery: 150
8 - 21.0" / 533.4 mm above water torpedoes


Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 272.31 ft / 83.00 m 6.56 ft / 2.00 m
Ends: Unarmoured
Main Belt covers 88 % of normal length


- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.15" / 80 mm 1.57" / 40 mm 3.54" / 90 mm
2nd: 2.36" / 60 mm 1.26" / 32 mm 2.36" / 60 mm


- Armour deck: 1.77" / 45 mm, Conning tower: 3.15" / 80 mm


Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 41,396 shp / 30,882 Kw = 30.00 kts
Range 6,000nm at 15.00 kts
Bunker at max displacement = 759 tons


Complement:
298 - 388


Cost:
£2.912 million / $11.648 million


Distribution of weights at normal displacement:
Armament: 112 tons, 2.2 %
Armour: 968 tons, 19.2 %
- Belts: 238 tons, 4.7 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 201 tons, 4.0 %
- Armour Deck: 509 tons, 10.1 %
- Conning Tower: 20 tons, 0.4 %
Machinery: 1,012 tons, 20.1 %
Hull, fittings & equipment: 2,144 tons, 42.5 %
Fuel, ammunition & stores: 604 tons, 12.0 %
Miscellaneous weights: 200 tons, 4.0 %


Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,598 lbs / 3,447 Kg = 73.8 x 5.9 " / 150 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 1.8 ft / 0.5 m
Roll period: 14.2 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.64
Seaboat quality (Average = 1.00): 1.22


Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.550
Length to Beam Ratio: 10.56 : 1
'Natural speed' for length: 24.64 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 46
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: 25.00 ft / 7.62 m
- Forecastle (20 %): 21.00 ft / 6.40 m
- Mid (50 %): 17.00 ft / 5.18 m
- Quarterdeck (15 %): 15.00 ft / 4.57 m
- Stern: 15.00 ft / 4.57 m
- Average freeboard: 18.07 ft / 5.51 m


Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.2 %
- Above water (accommodation/working, high = better): 128.1 %
Waterplane Area: 15,530 Square feet or 1,443 Square metres
Displacement factor (Displacement / loading): 123 %
Structure weight / hull surface area: 80 lbs/sq ft or 390 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.93
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily


50t for Radar
50t for Sonar, 2 Depth Charge Projector, 40 Depth Charges
Three Units: Taksin, Naresuan, Phra Ruang