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Mysore class CP (0 units) - 1890

Kolkata class CP (0 units + 0 training) - 1912/27

Colombo class CL (0 units*) - 1917/27-8

Hyderabad class CA (0 units) - 1918

Trincomalee class CL (2 units) - 1922

Agra class CL (4 units) - 1926

Vadodara class CA (1 training unit) - 1928

Ahmadabad class CL (2 units) - 1932

Kanpur class CL (4 units ) - 1934-5

Patna class CLAA (4 units) - 1934-6

Delhi class CA (2 units) - 1936

Hyderabad III CA (0 units) - 1938-9

Chapra CA (0 units) - 1940

Dombivli CL (2 units) - 1942

(Note: Kolkata, Colombo classes shown as refitted)

Kolkata class CP (0 units + 0 training) - 1912/27

Colombo class CL (0 units*) - 1917/27-8

Hyderabad class CA (0 units) - 1918

Trincomalee class CL (2 units) - 1922

Agra class CL (4 units) - 1926

Vadodara class CA (1 training unit) - 1928

Ahmadabad class CL (2 units) - 1932

Kanpur class CL (4 units ) - 1934-5

Patna class CLAA (4 units) - 1934-6

Delhi class CA (2 units) - 1936

Hyderabad III CA (0 units) - 1938-9

Chapra CA (0 units) - 1940

Dombivli CL (2 units) - 1942

(Note: Kolkata, Colombo classes shown as refitted)

Top view: Kolkata as built

Middle: Sittwe and Pondicherry as rebuilt, 1926

Bottom: Goa and Chennai as rebuilt, 1927-8

Kolkata, C-4, laid down 1912, lost 1916

Goa, C-5, laid down 1913, rebuilt as training ship 1927, deleted as museum ship 1944

Hyderabad, C-6, laid down 1913, constructive total loss 1919

Mumbai, C-7, laid down 1914, lost 1916

Chennai, C-8, laid down 1915, rebuilt as training ship 1928, to China 1945

Pondicherry, C-9, laid down 1916, rebuilt in 1926, refitted 1937, to Peru 1937

Delhi, C-10, laid down 1916, lost 1924

Sittwe, C-11, laid down 1917, rebuilt 1926, refitted 1937, to Peru 1937

Length, 129.9 m x Beam, 14.0 m x Depth, 5.5 m

4535 tonnes normal displacement (4118 tonnes standard)

Main battery: 8 x 10.5-cm

Secondary battery: 4 x 8.8-cm

QF battery: 2 x 3.7-cm

Light battery: 4 x 1.5-cm

Weight of broadside: 168 kg

4 TT, 45.0 cm

Main belt, 7.5 cm; full length

Armor deck, average 4.0 cm

Conning tower, 10.0 cm

Battery armor:

Main, 2.5 cm shields / secondary, 2.5 cm

QF, 2.0 cm shields / light guns, 1.5 cm shields

Maximum speed for 22013 shaft kw = 27.00 knots

Approximate cruising radius, 6000 nm / 10 knots

Typical complement: 276-359

Estimated cost, $1.439 million (£360,000)

Remarks:

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

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 46 tonnes = 1 pct

Armor, total ..................... 785 tonnes = 17 pct

Belt 407 tonnes = 9 pct

Deck 334 tonnes = 7 pct

C.T. 23 tonnes = 1 pct

Armament 20 tonnes = 0 pct

Machinery ........................ 1294 tonnes = 29 pct

Hull and fittings; equipment ..... 1822 tonnes = 40 pct

Fuel, ammunition, stores ......... 539 tonnes = 12 pct

Miscellaneous weights ............ 50 tonnes = 1 pct

-----

4535 tonnes = 100 pct

Estimated metacentric height, 0.6 m

Displacement summary:

Light ship: 3996 tonnes

Standard displacement: 4118 tonnes

Normal service: 4535 tonnes

Full load: 4851 tonnes

Loading submergence 1076 tonnes/metre

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

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.17

Shellfire needed to sink: 2162 kg = 134.6 x 10.5-cm shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.0

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 71 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.10

Relative quality as a seaboat: 1.05

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

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 7.87

'Natural speed' for length = 20.6 knots

Power going to wave formation

at top speed: 55 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 102 percent

Relative accommodation and working space: 100 percent

Displacement factor: 120 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.23

(Structure weight per square

metre of hull surface: 441 kg)

Relative longitudinal hull strength: 1.75

(for 4.30 m average freeboard;

freeboard adjustment +0.36 m)

Relative composite hull strength: 1.27

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

[Machine-readable parameters: Spring Style v. 1.2.1]

426.00 x 46.00 x 18.00; 14.10 -- Dimensions

0.45 -- Block coefficient

1912 -- Year laid down

27.00 / 6000 / 10.00; Turbine, coal fired -- Speed / radius / cruise

50 tons -- Miscellaneous weights

++++++++++

8 x 4.13; 0 -- Main battery; turrets

Central positioning of guns

Gun-shields

:

4 x 3.46; 0 -- Secondary battery; turrets

Main deck battery

:

2 x 1.46 -- Tertiary (QF/AA) battery

Gun-shields

:

4 x 0.59 -- Fourth (light) battery

4 / 0 / 17.72 -- TT / submerged / size

++++++++++

2.95 / 2.95 / 0.00 / 0.00; 100 -- Belt armor; relative extent

1.57 / 3.94 -- Deck / CT

0.98 / 0.98 / 0.79 / 0.59 -- Battery armor

(Note: For portability, values are stored in Anglo-American units)

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

Note: applies to Sittwe, Pondicherry

Length, 129.9 m x Beam, 14.0 m x Depth, 5.2 m

4290 tonnes normal displacement (3899 tonnes

standard)

Main battery: 6 x 15.0-cm

Secondary battery: 4 x 10.5-cm

AA battery: 4 x 3.5-cm

Light battery: 2 x 1.5-cm

Weight of broadside: 348 kg

6 TT, 55.0 cm

Main belt, 7.5 cm; ends unarmored

Armor deck, average 4.0 cm

Conning tower, 10.0 cm

Battery armor:

Main, 7.5 cm shields / secondary, 4.0 cm shields

AA, 2.0 cm shields / light guns, 2.0 cm shields

Maximum speed for 29003 shaft kw = 29.15 knots

Approximate cruising radius, 8000 nm / 12 knots

Typical complement: 265-345

Estimated cost, $5.329 million (£1.332

million)

Remarks:

Relative extent of belt armor, 114 percent of

'typical' coverage.

Magazines and engineering spaces are cramped, with

poor

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 96 tonnes

= 2 pct

Armor, total ..................... 716 tonnes

= 17 pct

Belt 313 tonnes

= 7 pct

Deck 334 tonnes

= 8 pct

C.T. 22 tonnes

= 1 pct

Armament 46 tonnes

= 1 pct

Machinery ........................ 1244 tonnes

= 29 pct

Hull and fittings; equipment ..... 1644 tonnes

= 38 pct

Fuel, ammunition, stores ......... 541 tonnes

= 13 pct

Miscellaneous weights ............ 50 tonnes

= 1 pct

-----

4290 tonnes

= 100 pct

Estimated metacentric height, 0.6 m

Displacement summary:

Light ship: 3749 tonnes

Standard displacement: 3899 tonnes

Normal service: 4290 tonnes

Full load: 4587 tonnes

Loading submergence 1074 tonnes/metre

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

Estimated overall survivability and seakeeping

ability:

Relative margin of stability: 1.12

Shellfire needed to sink: 1773 kg = 37.9 x

15.0-cm shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 0.9

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 66 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.24

Relative quality as a seaboat: 1.02

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

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 8.02

'Natural speed' for length = 20.6 knots

Power going to wave formation

at top speed: 59 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 113

percent

Relative accommodation and working space: 98

percent

Displacement factor: 107 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.97

(Structure weight per square

metre of hull surface: 394 kg)

Relative longitudinal hull strength: 1.79

(for 4.70 m average freeboard;

freeboard adjustment +0.80 m)

Relative composite hull strength: 1.03

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

[Machine-readable parameters: Spring Style v. 1.2.1]

426.07 x 45.92 x 17.06; 15.42 -- Dimensions

0.45 -- Block coefficient

1926 -- Year laid down

29.15 / 8000 / 12.00; Oil-fired turbine or equivalent --

Speed / radius / cruise

50 tons -- Miscellaneous weights

++++++++++

6 x 5.91; 0 -- Main battery; turrets

Central positioning of guns

Gun-shields

:

4 x 4.13; 0 -- Secondary battery; turrets

Gun-shields

:

4 x 1.38 -- Tertiary (QF/AA) battery

Gun-shields

:

2 x 0.59 -- Fourth (light) battery

6 / 0 / 21.65 -- TT / submerged / size

++++++++++

2.95 / 0.00 / 0.00 / 0.00; 114 -- Belt armor; relative

extent

1.57 / 3.94 -- Deck / CT

2.95 / 1.57 / 0.79 / 0.79 -- Battery armor

(Note: For portability, values are stored in

Anglo-American units)

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

Note: applies to Goa, Chennai

Goa, laid down 1927

Length, 129.9 m x Beam, 14.0 m x Depth, 5.5 m

4535 tonnes normal displacement (4136 tonnes standard)

Main battery: 4 x 15.0-cm

Secondary battery: 4 x 10.5-cm

AA battery: 4 x 3.5-cm

Light battery: 16 x 1.5-cm

Weight of broadside: 255 kg

Main belt, 7.5 cm; full length

Armor deck, average 4.0 cm

Conning tower, 10.0 cm

Battery armor:

Main, 5.0 cm shields / secondary, 2.5 cm shields

AA, 2.0 cm shields / light guns, 2.0 cm shields

Maximum speed for 10991 shaft kw = 22.61 knots

Approximate cruising radius, 8000 nm / 12 knots

Typical complement: 276-359

Estimated cost, $3.838 million (£959,000)

Remarks:

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

Good seaboat; rides out heavy weather easily.

Magazines and engineering spaces are roomy, with superior

watertight subdivision.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 70 tonnes = 2 pct

Armor, total ..................... 791 tonnes = 17 pct

Belt 407 tonnes = 9 pct

Deck 334 tonnes = 7 pct

C.T. 23 tonnes = 1 pct

Armament 26 tonnes = 1 pct

Machinery ........................ 465 tonnes = 10 pct

Hull and fittings; equipment ..... 2647 tonnes = 58 pct

Fuel, ammunition, stores ......... 537 tonnes = 12 pct

Miscellaneous weights ............ 25 tonnes = 1 pct

-----

4535 tonnes = 100 pct

Estimated metacentric height, 0.6 m

Displacement summary:

Light ship: 3998 tonnes

Standard displacement: 4136 tonnes

Normal service: 4535 tonnes

Full load: 4837 tonnes

Loading submergence 1076 tonnes/metre

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

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.14

Shellfire needed to sink: 4734 kg = 101.1 x 15.0-cm shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 2.7

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 72 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.16

Relative quality as a seaboat: 1.44

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

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 7.87

'Natural speed' for length = 20.6 knots

Power going to wave formation

at top speed: 45 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 47 percent

Relative accommodation and working space: 112 percent

Displacement factor: 197 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.75

(Structure weight per square

metre of hull surface: 641 kg)

Relative longitudinal hull strength: 2.55

(for 4.30 m average freeboard;

freeboard adjustment +0.36 m)

Relative composite hull strength: 1.82

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

[Machine-readable parameters: Spring Style v. 1.2.1]

426.00 x 46.00 x 18.00; 14.10 -- Dimensions

0.45 -- Block coefficient

1927 -- Year laid down

22.61 / 8000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise

25 tons -- Miscellaneous weights

++++++++++

4 x 5.91; 0 -- Main battery; turrets

Central positioning of guns

Gun-shields

:

4 x 4.13; 0 -- Secondary battery; turrets

Gun-shields

:

4 x 1.38 -- Tertiary (QF/AA) battery

Gun-shields

:

16 x 0.59 -- Fourth (light) battery

0 -- No torpedo armament

++++++++++

2.95 / 2.95 / 0.00 / 0.00; 100 -- Belt armor; relative extent

1.57 / 3.94 -- Deck / CT

1.97 / 0.98 / 0.79 / 0.79 -- Battery armor

(Note: For portability, values are stored in Anglo-American units)

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

Top: Columbo as built

Bottom: as refitted, 1927-1929

Columbo, C-12, laid down 1917, refitted 1927, to Peru 1937

Cochin, C-13, laid down 1917, refitted 1927

Port Blair, C-14, laid down 1918, refitted 1928

Jaipur, C-16, laid down 1919, refitted 1928, converted to CVL and to Persia, 1937

Kalyan, C-19, laid down 1920, refitted 1929, lost 1932

Length, 152.4 m x Beam, 15.2 m x Depth, 4.6 m

5157 tonnes normal displacement (4568 tonnes standard)

Main battery: 7 x 15.0-cm (7x1)

Secondary battery: 2 x 10.5-cm (2x1)

AA battery: 2 x 3.5-cm (2x1)

Light battery: 4 x 1.5-cm (4x1)

Weight of broadside: 361 kg

4 TT, 45.0 cm (2x2)

Main belt, 7.5 cm; ends unarmored

Armor deck, average 3.5 cm

Conning tower, 7.5 cm

Battery armor:

Main, 7.5 cm shields / secondary, 5.0 cm

AA, 2.0 cm shields / light guns, 2.0 cm shields

Maximum speed for 30002 shaft kw = 29.02 knots

Approximate cruising radius, 13000 nm / 10 knots

Typical complement: 304-396

Estimated cost, $3.227 million (£807,000)

Remarks:

Oil firing.

Relative extent of belt armor, 110 percent of 'typical' coverage.

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

Ship is roomy, with superior accommodation and working space.

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 99 tonnes = 2 pct

Armor, total ..................... 833 tonnes = 16 pct

Belt 366 tonnes = 7 pct

Deck 389 tonnes = 8 pct

C.T. 19 tonnes = 0 pct

Armament 59 tonnes = 1 pct

Machinery ........................ 1474 tonnes = 29 pct

Hull and fittings; equipment ..... 1968 tonnes = 38 pct

Fuel, ammunition, stores ......... 758 tonnes = 15 pct

Miscellaneous weights ............ 25 tonnes = 0 pct

-----

5157 tonnes = 100 pct

Estimated metacentric height, 0.8 m

Displacement summary:

Light ship: 4399 tonnes

Standard displacement: 4568 tonnes

Normal service: 5157 tonnes

Full load: 5607 tonnes

Loading submergence 1428 tonnes/metre

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

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.28

Shellfire needed to sink: 2568 kg = 54.9 x 15.0-cm shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.1

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 71 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.16

Relative quality as a seaboat: 1.14

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

Hull form characteristics:

Block coefficient: 0.48

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 8.85

'Natural speed' for length = 22.4 knots

Power going to wave formation

at top speed: 54 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 108 percent

Relative accommodation and working space: 133 percent

Displacement factor: 112 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.00

(Structure weight per square

metre of hull surface: 392 kg)

Relative longitudinal hull strength: 1.13

(for 4.60 m average freeboard;

freeboard adjustment +0.56 m)

Relative composite hull strength: 1.01

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

[Machine-readable parameters: Spring Style v. 1.2.1]

499.87 x 49.86 x 15.09; 15.09 -- Dimensions

0.48 -- Block coefficient

1917 -- Year laid down

29.02 / 13000 / 10.00; Oil-fired turbine or equivalent -- Speed / radius / cruise

25 tons -- Miscellaneous weights

++++++++++

7 x 5.91; 0 -- Main battery; turrets

Central positioning of guns

Gun-shields

:

2 x 4.13; 0 -- Secondary battery; turrets

Main deck battery

:

2 x 1.38 -- Tertiary (QF/AA) battery

Gun-shields

:

4 x 0.59 -- Fourth (light) battery

4 / 0 / 17.72 -- TT / submerged / size

++++++++++

2.95 / 0.00 / 0.00 / 0.00; 110 -- Belt armor; relative extent

1.38 / 2.95 -- Deck / CT

2.95 / 1.97 / 0.79 / 0.79 -- Battery armor

(Note: For portability, values are stored in Anglo-American units)

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

Colombo, laid down 1917

Length, 152.4 m x Beam, 15.2 m x Depth, 4.6 m

5158 tonnes normal displacement (4561 tonnes standard)

Main battery: 6 x 15.0-cm (3x2 deck mount w/hoist)

Secondary battery: 4 x 10.5-cm (1x2, 2x1)

AA battery: 6 x 3.5-cm (6x1)

Light battery: 8 x 1.5-cm (2x4)

Weight of broadside: 349 kg

8 TT, 55.0 cm (2x4)

Main belt, 7.5 cm; ends unarmored

Armor deck, average 3.5 cm

Conning tower, 7.5 cm

Battery armor:

Main, 5.0 cm shields / secondary, 3.0 cm

AA, 2.0 cm shields / light guns, 2.0 cm shields

Maximum speed for 30006 shaft kw = 29.02 knots

Approximate cruising radius, 9000 nm / 12 knots

Typical complement: 304-396

Estimated cost, $3.205 million (£801,000)

Remarks:

Oil firing.

Relative extent of belt armor, 110 percent of 'typical' coverage.

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

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 96 tonnes = 2 pct

Armor, total ..................... 814 tonnes = 16 pct

Belt 366 tonnes = 7 pct

Deck 389 tonnes = 8 pct

C.T. 19 tonnes = 0 pct

Armament 40 tonnes = 1 pct

Machinery ........................ 1474 tonnes = 29 pct

Hull and fittings; equipment ..... 1934 tonnes = 38 pct

Fuel, ammunition, stores ......... 764 tonnes = 15 pct

Miscellaneous weights ............ 75 tonnes = 1 pct

-----

5158 tonnes = 100 pct

Estimated metacentric height, 0.8 m

Displacement summary:

Light ship: 4394 tonnes

Standard displacement: 4561 tonnes

Normal service: 5158 tonnes

Full load: 5615 tonnes

Loading submergence 1428 tonnes/metre

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

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.27

Shellfire needed to sink: 2533 kg = 54.1 x 15.0-cm shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.1

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 72 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.16

Relative quality as a seaboat: 1.14

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

Hull form characteristics:

Block coefficient: 0.48

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 8.85

'Natural speed' for length = 22.4 knots

Power going to wave formation

at top speed: 54 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 109 percent

Relative accommodation and working space: 110 percent

Displacement factor: 112 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.99

(Structure weight per square

metre of hull surface: 385 kg)

Relative longitudinal hull strength: 1.12

(for 4.60 m average freeboard;

freeboard adjustment +0.56 m)

Relative composite hull strength: 1.01

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

[Machine-readable parameters: Spring Style v. 1.2.1]

499.87 x 49.86 x 15.09; 15.09 -- Dimensions

0.48 -- Block coefficient

1917 -- Year laid down

29.02 / 9000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise

75 tons -- Miscellaneous weights

++++++++++

6 x 5.91; 0 -- Main battery; turrets

Central positioning of guns

Gun-shields

:

4 x 4.13; 0 -- Secondary battery; turrets

Main deck battery

:

6 x 1.38 -- Tertiary (QF/AA) battery

Gun-shields

:

8 x 0.59 -- Fourth (light) battery

8 / 0 / 21.65 -- TT / submerged / size

++++++++++

2.95 / 0.00 / 0.00 / 0.00; 110 -- Belt armor; relative extent

1.38 / 2.95 -- Deck / CT

1.97 / 1.18 / 0.79 / 0.79 -- Battery armor

(Note: For portability, values are stored in Anglo-American units)

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

Top as built; bottom, as refitted

Hyderabad II, C-15, laid down 1918, to Mexico 1936

Bangalore, C-17, laid down 1919, to Mexico 1936

Male, C-18, laid down 1920, lost 1932

Length, 182.9 m x Beam, 18.3 m x Depth, 5.6 m

8943 tonnes normal displacement (8449 tonnes standard)

Main battery: 6 x 21.0-cm (6 x 1; 2 superfiring)

Secondary battery: 4 x 10.5-cm

AA battery: 4 x 3.5-cm

Light battery: 4 x 1.5-cm

Weight of broadside: 837 kg

8 TT, 50.0 cm

Main belt, 10.0 cm; bow and stern, 4.0 cm

Armor deck, average 4.0 cm

Conning tower, 10.0 cm

Battery armor:

Main, 10.0 cm / secondary, 5.0 cm

AA, 2.0 cm shields / light guns, 2.0 cm shields

Maximum speed for 48001 shaft kw = 30.55 knots

Approximate cruising radius, 8000 nm / 10 knots

Typical complement: 460-598

Estimated cost, $6.419 million (£1.605 million)

Remarks:

Oil firing.

Relative extent of belt armor, 106 percent of 'typical' coverage.

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

Ship is roomy, with superior accommodation and working space.

Main deck secondary guns subject to being washed down

in a seaway.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 230 tonnes = 3 pct

Armor, total ..................... 1835 tonnes = 21 pct

Belt 741 tonnes = 8 pct

Deck 632 tonnes = 7 pct

C.T. 37 tonnes = 0 pct

Armament 425 tonnes = 5 pct

Machinery ........................ 2320 tonnes = 26 pct

Hull and fittings; equipment ..... 3681 tonnes = 41 pct

Fuel, ammunition, stores ......... 827 tonnes = 9 pct

Miscellaneous weights ............ 50 tonnes = 1 pct

-----

8943 tonnes = 100 pct

Estimated metacentric height, 0.8 m

Displacement summary:

Light ship: 8116 tonnes

Standard displacement: 8449 tonnes

Normal service: 8943 tonnes

Full load: 9304 tonnes

Loading submergence 2034 tonnes/metre

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

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.09

Shellfire needed to sink: 4300 kg = 33.5 x 21.0-cm shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.4

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 71 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.49

Relative quality as a seaboat: 1.11

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

Hull form characteristics:

Block coefficient: 0.47

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 8.84

'Natural speed' for length = 24.5 knots

Power going to wave formation

at top speed: 52 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 105 percent

Relative accommodation and working space: 138 percent

Displacement factor: 107 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.00

(Structure weight per square

metre of hull surface: 513 kg)

Relative longitudinal hull strength: 1.05

(for 5.40 m average freeboard;

freeboard adjustment +0.89 m)

Relative composite hull strength: 1.00

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

[Machine-readable parameters: Spring Style v. 1.2.1]

600.00 x 60.00 x 18.50; 17.71 -- Dimensions

0.47 -- Block coefficient

1918 -- Year laid down

30.55 / 8000 / 10.00; Oil-fired turbine or equivalent -- Speed / radius / cruise

50 tons -- Miscellaneous weights

++++++++++

6 x 8.27; 6; 2 -- Main battery; turrets; superfiring

:

4 x 4.13; 0 -- Secondary battery; turrets

Main deck battery

:

4 x 1.38 -- Tertiary (QF/AA) battery

Gun-shields

:

4 x 0.59 -- Fourth (light) battery

8 / 0 / 19.69 -- TT / submerged / size

++++++++++

3.94 / 1.57 / 0.00 / 0.00; 106 -- Belt armor; relative extent

1.57 / 3.94 -- Deck / CT

3.94 / 1.97 / 0.79 / 0.79 -- Battery armor

(Note: For portability, values are stored in Anglo-American units)

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

Trincomalee, C-20, laid down 1922

Lucknow, C-21, laid down 1923

Trincomalee, India Light Cruiser laid down 1922 (Engine 1937)

Displacement:

6,135 t light; 6,367 t standard; 6,964 t normal; 7,442 t full load

Dimensions: Length overall / water x beam x draught

575.13 ft / 575.13 ft x 57.41 ft x 16.40 ft (normal load)

175.30 m / 175.30 m x 17.50 m x 5.00 m

Armament:

6 - 5.91" / 150 mm guns (2x3 guns), 102.98lbs / 46.71kg shells, 1922 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, evenly spread

6 - 4.92" / 125 mm guns (3x2 guns), 59.59lbs / 27.03kg shells, 1936 Model

Dual purpose guns in deck mounts with hoists

on centreline, evenly spread, all raised mounts

24 - 1.38" / 35.0 mm guns (12x2 guns), 1.31lbs / 0.59kg shells, 1936 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, 6 raised mounts

32 - 0.59" / 15.0 mm guns (8x4 guns), 0.10lbs / 0.05kg shells, 1936 Model

Machine guns in deck mounts

on side, evenly spread, 2 raised mounts

Weight of broadside 1,010 lbs / 458 kg

Shells per gun, main battery: 150

8 - 19.7" / 500 mm above water torpedoes

Armour:

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

Main: 1.97" / 50 mm 373.85 ft / 113.95 m 9.09 ft / 2.77 m

Ends: Unarmoured

Main Belt covers 100 % of normal length

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

Main: 1.97" / 50 mm 0.79" / 20 mm 3.15" / 80 mm

2nd: 1.97" / 50 mm - -

3rd: 0.79" / 20 mm - -

4th: 0.79" / 20 mm - -

- Armour deck: 0.98" / 25 mm, Conning tower: 1.97" / 50 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 63,809 shp / 47,601 Kw = 32.80 kts

Range 10,000nm at 12.00 kts

Bunker at max displacement = 1,075 tons

Complement:

380 - 495

Cost:

£1.558 million / $6.234 million

Distribution of weights at normal displacement:

Armament: 126 tons, 1.8 %

Armour: 819 tons, 11.8 %

- Belts: 278 tons, 4.0 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 127 tons, 1.8 %

- Armour Deck: 398 tons, 5.7 %

- Conning Tower: 15 tons, 0.2 %

Machinery: 1,790 tons, 25.7 %

Hull, fittings & equipment: 3,375 tons, 48.5 %

Fuel, ammunition & stores: 829 tons, 11.9 %

Miscellaneous weights: 25 tons, 0.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

10,062 lbs / 4,564 Kg = 97.7 x 5.9 " / 150 mm shells or 1.5 torpedoes

Stability (Unstable if below 1.00): 1.28

Metacentric height 3.4 ft / 1.0 m

Roll period: 13.1 seconds

Steadiness - As gun platform (Average = 50 %): 51 %

- Recoil effect (Restricted arc if above 1.00): 0.25

Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:

Hull has a flush deck

and transom stern

Block coefficient: 0.450

Length to Beam Ratio: 10.02 : 1

'Natural speed' for length: 27.53 kts

Power going to wave formation at top speed: 56 %

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: 26.38 ft / 8.04 m

- Forecastle (20 %): 16.80 ft / 5.12 m

- Mid (50 %): 16.80 ft / 5.12 m

- Quarterdeck (15 %): 16.80 ft / 5.12 m

- Stern: 16.80 ft / 5.12 m

- Average freeboard: 17.56 ft / 5.35 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 98.3 %

- Above water (accommodation/working, high = better): 157.2 %

Waterplane Area: 21,880 Square feet or 2,033 Square metres

Displacement factor (Displacement / loading): 128 %

Structure weight / hull surface area: 104 lbs/sq ft or 506 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 1.08

- Longitudinal: 1.33

- Overall: 1.10

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is excellent

Length, 175.3 m x Beam, 17.5 m x Depth, 5.0 m

6971 tonnes normal displacement (6265 tonnes standard)

Main battery: 6 x 15.0-cm (2 x 3)

Secondary battery: 3 x 15.0-cm

AA battery: 4 x 10.5-cm

Light battery: 4 x 3.6-cm

Weight of broadside: 488 kg

8 TT, 50.0 cm

Main belt, 5.0 cm; ends unarmored

Armor deck, average 2.5 cm

Conning tower, 5.0 cm

Battery armor:

Main, 5.0 cm / secondary, 5.0 cm shields

AA, 2.0 cm shields / light guns, 2.0 cm shields

Maximum speed for 47000 shaft kw = 31.52 knots

Approximate cruising radius, 10000 nm / 12 knots

Typical complement: 381-496

Estimated cost, $6.798 million (£1.699 million)

Remarks:

Relative extent of belt armor, 116 percent of 'typical' coverage.

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

Magazines and engineering spaces are cramped, with poor

watertight subdivision.

Roomy upper decks; superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 134 tonnes = 2 pct

Armor, total ..................... 793 tonnes = 11 pct

Belt 318 tonnes = 5 pct

Deck 353 tonnes = 5 pct

C.T. 15 tonnes = 0 pct

Armament 107 tonnes = 2 pct

Machinery ........................ 2136 tonnes = 31 pct

Hull and fittings; equipment ..... 2948 tonnes = 42 pct

Fuel, ammunition, stores ......... 935 tonnes = 13 pct

Miscellaneous weights ............ 25 tonnes = 0 pct

-----

6971 tonnes = 100 pct

Estimated metacentric height, 1.0 m

Displacement summary:

Light ship: 6036 tonnes

Standard displacement: 6265 tonnes

Normal service: 6971 tonnes

Full load: 7508 tonnes

Loading submergence 1815 tonnes/metre

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

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.26

Shellfire needed to sink: 3181 kg = 68.0 x 15.0-cm shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 71 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.29

Relative quality as a seaboat: 1.12

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

Hull form characteristics:

Block coefficient: 0.45

Sharpness coefficient: 0.31

Hull speed coefficient 'M' = 9.20

'Natural speed' for length = 24.0 knots

Power going to wave formation

at top speed: 54 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 115 percent

Relative accommodation and working space: 141 percent

Displacement factor: 113 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 1.00

(Structure weight per square

metre of hull surface: 463 kg)

Relative longitudinal hull strength: 1.13

(for 5.20 m average freeboard;

freeboard adjustment +0.90 m)

Relative composite hull strength: 1.01

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

[Machine-readable parameters: Spring Style v. 1.2.1]

575.00 x 57.50 x 16.40; 17.06 -- Dimensions

0.45 -- Block coefficient

1922 -- Year laid down

31.52 / 10000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise

25 tons -- Miscellaneous weights

++++++++++

6 x 5.91; 2; 0 -- Main battery; turrets; superfiring

:

3 x 5.91; 0 -- Secondary battery; turrets

Gun-shields

:

4 x 4.13 -- Tertiary (QF/AA) battery

Gun-shields

:

4 x 1.42 -- Fourth (light) battery

8 / 0 / 19.69 -- TT / submerged / size

++++++++++

1.97 / 0.00 / 0.00 / 0.00; 116 -- Belt armor; relative extent

0.98 / 1.97 -- Deck / CT

1.97 / 1.97 / 0.79 / 0.79 -- Battery armor

(Note: For portability, values are stored in Anglo-American units)

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

Note: this entry incorrectly listed a 174 m long version of the ship - which would have required the services of type 3 slipways I did not have available. The 170 m long version, which just barely fits into the type 2 slips, is the version being built...

Agra, C-22, laid down 1926

Dhaka, C-23, laid down 1926

Pune, C-24, laid down 1927

Surat, C-25, laid down 1927

Enter ship name, Enter country Enter ship type laid down 1926 (Engine 1941)

Displacement:

6,970 t light; 7,388 t standard; 8,086 t normal; 8,644 t full load

Dimensions: Length overall / water x beam x draught

564.90 ft / 557.74 ft x 55.77 ft x 19.36 ft (normal load)

172.18 m / 170.00 m x 17.00 m x 5.90 m

Armament:

9 - 5.91" / 150 mm guns (3x3 guns), 102.98lbs / 46.71kg shells, 1926 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, majority forward, 1 raised mount - superfiring

8 - 4.92" / 125 mm guns (4x2 guns), 59.59lbs / 27.03kg shells, 1926 Model

Dual purpose guns in deck mounts with hoists

on side, all amidships

16 - 1.38" / 35.0 mm guns (8x2 guns), 1.31lbs / 0.59kg shells, 1926 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, all raised mounts

8 - 0.59" / 15.0 mm guns (2x4 guns), 0.10lbs / 0.05kg shells, 1926 Model

Machine guns in deck mounts

on side, evenly spread, all raised mounts

Weight of broadside 1,425 lbs / 647 kg

Shells per gun, main battery: 300

8 - 21.7" / 550 mm above water torpedoes

Armour:

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

Main: 3.15" / 80 mm 401.90 ft / 122.50 m 11.48 ft / 3.50 m

Ends: Unarmoured

Main Belt covers 111 % of normal length

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

Main: 3.15" / 80 mm 1.57" / 40 mm 3.15" / 80 mm

2nd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm

4th: 0.79" / 20 mm - -

5th: 0.79" / 20 mm - -

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

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 72,386 shp / 54,000 Kw = 31.75 kts

Range 11,000nm at 12.00 kts (Bunkerage = 1,256 tons)

Complement:

426 - 554

Cost:

£2.285 million / $9.140 million

Distribution of weights at normal displacement:

Armament: 178 tons, 2.2 %

Armour: 1,435 tons, 17.7 %

- Belts: 595 tons, 7.4 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 225 tons, 2.8 %

- Armour Deck: 588 tons, 7.3 %

- Conning Tower: 27 tons, 0.3 %

Machinery: 1,913 tons, 23.7 %

Hull, fittings & equipment: 3,244 tons, 40.1 %

Fuel, ammunition & stores: 1,116 tons, 13.8 %

Miscellaneous weights: 200 tons, 2.5 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

9,971 lbs / 4,523 Kg = 96.8 x 5.9 " / 150 mm shells or 1.4 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 %): 60 %

- Recoil effect (Restricted arc if above 1.00): 0.47

Seaboat quality (Average = 1.00): 1.07

Hull form characteristics:

Hull has a flush deck

Block coefficient: 0.470

Length to Beam Ratio: 10.00 : 1

'Natural speed' for length: 23.62 kts

Power going to wave formation at top speed: 56 %

Trim (Max stability = 0, Max steadiness = 100): 56

Bow angle (Positive = bow angles forward): 10.00 degrees

Stern overhang: 3.28 ft / 1.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 21.98 ft / 6.70 m

- Forecastle (20 %): 18.04 ft / 5.50 m

- Mid (50 %): 18.04 ft / 5.50 m

- Quarterdeck (15 %): 18.04 ft / 5.50 m

- Stern: 18.04 ft / 5.50 m

- Average freeboard: 18.36 ft / 5.60 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 98.6 %

- Above water (accommodation/working, high = better): 132.1 %

Waterplane Area: 20,180 Square feet or 1,875 Square metres

Displacement factor (Displacement / loading): 117 %

Structure weight / hull surface area: 99 lbs/sq ft or 482 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.96

- Longitudinal: 1.40

- Overall: 1.00

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is excellent

Length, 170.0 m x Beam, 17.0 m x Depth, 5.9 m

8080 tonnes normal displacement (7273 tonnes standard)

Main battery: 9 x 15.0-cm (3 x 3; 1 superfiring)

Secondary battery: 10 x 10.5-cm

AA battery: 8 x 3.5-cm

Light battery: 6 x 1.5-cm

Weight of broadside: 587 kg

8 TT, 55.0 cm

Main belt, 8.0 cm; ends unarmored

Armor deck, average 4.0 cm

Conning tower, 8.0 cm

Battery armor:

Main, 8.0 cm / secondary, 4.0 cm shields

AA, 2.0 cm shields / light guns, 2.0 cm shields

Maximum speed for 54009 shaft kw = 31.74 knots

Approximate cruising radius, 11000 nm / 12 knots

Typical complement: 426-554

Estimated cost, $9.744 million (£2.436 million)

Remarks:

Relative extent of belt armor, 110 percent of 'typical' coverage.

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

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 162 tonnes = 2 pct

Armor, total ..................... 1293 tonnes = 16 pct

Belt 461 tonnes = 6 pct

Deck 545 tonnes = 7 pct

C.T. 27 tonnes = 0 pct

Armament 260 tonnes = 3 pct

Machinery ........................ 2317 tonnes = 29 pct

Hull and fittings; equipment ..... 3182 tonnes = 39 pct

Fuel, ammunition, stores ......... 1076 tonnes = 13 pct

Miscellaneous weights ............ 50 tonnes = 1 pct

-----

8080 tonnes = 100 pct

Estimated metacentric height, 0.7 m

Displacement summary:

Light ship: 7004 tonnes

Standard displacement: 7273 tonnes

Normal service: 8080 tonnes

Full load: 8693 tonnes

Loading submergence 1757 tonnes/metre

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

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.09

Shellfire needed to sink: 3558 kg = 75.8 x 15.0-cm shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.2

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 70 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.46

Relative quality as a seaboat: 1.07

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

Hull form characteristics:

Block coefficient: 0.47

Sharpness coefficient: 0.32

Hull speed coefficient 'M' = 8.50

'Natural speed' for length = 23.6 knots

Power going to wave formation

at top speed: 56 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 109 percent

Relative accommodation and working space: 138 percent

Displacement factor: 111 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.97

(Structure weight per square

metre of hull surface: 484 kg)

Relative longitudinal hull strength: 1.35

(for 5.60 m average freeboard;

freeboard adjustment +1.18 m)

Relative composite hull strength: 1.00

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

[Machine-readable parameters: Spring Style v. 1.2.1]

557.60 x 55.76 x 19.35; 18.37 -- Dimensions

0.47 -- Block coefficient

1926 -- Year laid down

31.74 / 11000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise

50 tons -- Miscellaneous weights

++++++++++

9 x 5.91; 3; 1 -- Main battery; turrets; superfiring

:

10 x 4.13; 0 -- Secondary battery; turrets

Gun-shields

:

8 x 1.38 -- Tertiary (QF/AA) battery

Gun-shields

:

6 x 0.59 -- Fourth (light) battery

8 / 0 / 21.65 -- TT / submerged / size

++++++++++

3.15 / 0.00 / 0.00 / 0.00; 110 -- Belt armor; relative extent

1.57 / 3.15 -- Deck / CT

3.15 / 1.57 / 0.79 / 0.79 -- Battery armor

(Note: For portability, values are stored in Anglo-American units)

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

Vadodara, C-26, laid down 1928, training ship 1944

Varanasi, C-27, laid down 1928, lost 1938

Length, 197.0 m x Beam, 20.1 m x Depth, 6.6 m

12649 tonnes normal displacement (11702 tonnes standard)

Main battery: 8 x 21.0-cm (4 x 2; 2 superfiring)

Secondary battery: 10 x 12.5-cm (5 x 2)

AA battery: 12 x 3.5-cm (4x2 & 2x1)

Light battery: 8 x 1.5-cm (2x4)

Weight of broadside: 1306 kg

8 TT, 55.0 cm (2x4)

Main belt, 13.0 cm; ends unarmored

Armor deck, average 5.0 cm

Conning tower, 13.0 cm

Battery armor:

Main, 13.0 cm / secondary, 3.0 cm

AA, 2.0 cm shields / light guns, 2.0 cm shields

Maximum speed for 70008 shaft kw = 32.01 knots

Approximate cruising radius, 10000 nm / 12 knots

Typical complement: 596-775

Estimated cost, $16.844 million (£4.211 million)

Remarks:

Relative extent of belt armor, 98 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.

Distribution of weights:

Percent

normal

displacement:

Armament ......................... 359 tonnes = 3 pct

Armor, total ..................... 2607 tonnes = 21 pct

Belt 843 tonnes = 7 pct

Deck 949 tonnes = 8 pct

C.T. 60 tonnes = 0 pct

Armament 755 tonnes = 6 pct

Machinery ........................ 2921 tonnes = 23 pct

Hull and fittings; equipment ..... 5273 tonnes = 42 pct

Fuel, ammunition, stores ......... 1439 tonnes = 11 pct

Miscellaneous weights ............ 50 tonnes = 0 pct

-----

12649 tonnes = 100 pct

Estimated metacentric height, 0.9 m

Displacement summary:

Light ship: 11210 tonnes

Standard displacement: 11702 tonnes

Normal service: 12649 tonnes

Full load: 13356 tonnes

Loading submergence 2442 tonnes/metre

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

Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.05

Shellfire needed to sink: 6578 kg = 51.2 x 21.0-cm shells

(Approximates weight of penetrating

shell hits needed to sink ship,

not counting critical hits)

Torpedoes needed to sink: 1.8

(Approximates number of 'typical'

torpedo hits needed to sink ship)

Relative steadiness as gun platform, 66 percent

(50 percent is 'average')

Relative rocking effect from firing to beam, 0.58

Relative quality as a seaboat: 1.10

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

Hull form characteristics:

Block coefficient: 0.48

Sharpness coefficient: 0.33

Hull speed coefficient 'M' = 8.48

'Natural speed' for length = 25.4 knots

Power going to wave formation

at top speed: 53 percent

Estimated hull characteristics and strength:

Relative underwater volume absorbed by

magazines and engineering spaces: 98 percent

Relative accommodation and working space: 144 percent

Displacement factor: 112 percent

(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.98

(Structure weight per square

metre of hull surface: 602 kg)

Relative longitudinal hull strength: 1.21

(for 6.10 m average freeboard;

freeboard adjustment +1.26 m)

Relative composite hull strength: 1.00

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

[Machine-readable parameters: Spring Style v. 1.2.1]

646.16 x 65.93 x 21.65; 20.01 -- Dimensions

0.48 -- Block coefficient

1928 -- Year laid down

32.01 / 10000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise

50 tons -- Miscellaneous weights

++++++++++

8 x 8.27; 4; 2 -- Main battery; turrets; superfiring

:

10 x 4.92; 5 -- Secondary battery; turrets

:

12 x 1.38 -- Tertiary (QF/AA) battery

Gun-shields

:

8 x 0.59 -- Fourth (light) battery

8 / 0 / 21.65 -- TT / submerged / size

++++++++++

5.12 / 0.00 / 0.00 / 0.00; 98 -- Belt armor; relative extent

1.97 / 5.12 -- Deck / CT

5.12 / 1.18 / 0.79 / 0.79 -- Battery armor

(Note: For portability, values are stored in Anglo-American units)

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

The two units of the Ahmadabad class have been designed specifically for the purpose of escorting the aircraft carrier Talwar, also being laid down this year. The ship is loosely based on the earlier Agra class, with a deeper and fuller hull form to allow for increase bunkerage while keeping the same maximum length (so that Type 2 slips and drydocks may be used for the class).

The ship retains the same main armament as the Agra class, while increasing the secondary battery to 12.5 cm dual-purpose guns. Two aircraft and a catapult are located amidships and it is expected that the two cruisers would assist Talwar in performing recce or search and rescue missions.

Thanks to Big Rich for the springsharp sim.

Ahmadabad, C-28, laid down 1932

Indore, C-29, laid down 1932

Displacement:

7,562 t light; 7,887 t standard (officially, 7,500 t); 9,292 t normal; 10,416 t full load

Dimensions: Length overall / water x beam x draught

586.19 ft / 557.74 ft x 56.43 ft x 20.34 ft (normal load)

178.67 m / 170.00 m x 17.20 m x 6.20 m

Armament:

9 - 5.91" / 150 mm guns (3x3 guns), 102.98lbs / 46.71kg shells, 1932 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, majority forward, 1 raised mount - superfiring

8 - 4.92" / 125 mm guns (4x2 guns), 59.59lbs / 27.03kg shells, 1932 Model

Dual purpose guns in deck mounts with hoists

on side, evenly spread

2 - 4.92" / 125 mm guns (1x2 guns), 59.59lbs / 27.03kg shells, 1932 Model

Dual purpose guns in a deck mount with hoist

on centreline aft, all raised guns - superfiring

12 - 1.38" / 35.0 mm guns (6x2 guns), 1.31lbs / 0.59kg shells, 1932 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, 5 raised mounts

8 - 0.59" / 15.0 mm guns (2x4 guns), 0.10lbs / 0.05kg shells, 1932 Model

Machine guns in deck mounts

on side, evenly spread, all raised mounts

Weight of broadside 1,539 lbs / 698 kg

Shells per gun, main battery: 150

8 - 21.7" / 550 mm above water torpedoes

Armour:

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

Main: 3.54" / 90 mm 347.77 ft / 106.00 m 9.84 ft / 3.00 m

Ends: Unarmoured

Main Belt covers 96 % of normal length

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

Main: 3.54" / 90 mm 1.57" / 40 mm 3.54" / 90 mm

2nd: 1.57" / 40 mm 0.79" / 20 mm -

3rd: 1.57" / 40 mm 0.79" / 20 mm -

4th: 0.79" / 20 mm - -

- Armour deck: 1.57" / 40 mm, Conning tower: 3.54" / 90 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 75,100 shp / 56,025 Kw = 32.35 kts

Range 20,000nm at 12.00 kts

Bunker at max displacement = 2,529 tons

Complement:

473 - 615

Cost:

£3.348 million / $13.393 million

Distribution of weights at normal displacement:

Armament: 192 tons, 2.1 %

Armour: 1,439 tons, 15.5 %

- Belts: 509 tons, 5.5 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 257 tons, 2.8 %

- Armour Deck: 640 tons, 6.9 %

- Conning Tower: 34 tons, 0.4 %

Machinery: 2,217 tons, 23.9 %

Hull, fittings & equipment: 3,612 tons, 38.9 %

Fuel, ammunition & stores: 1,730 tons, 18.6 %

Miscellaneous weights: 102 tons, 1.1 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

11,809 lbs / 5,356 Kg = 114.7 x 5.9 " / 150 mm shells or 1.5 torpedoes

Stability (Unstable if below 1.00): 1.09

Metacentric height 2.5 ft / 0.8 m

Roll period: 15.0 seconds

Steadiness - As gun platform (Average = 50 %): 70 %

- Recoil effect (Restricted arc if above 1.00): 0.58

Seaboat quality (Average = 1.00): 1.11

Hull form characteristics:

Hull has a flush deck

and transom stern

Block coefficient: 0.508

Length to Beam Ratio: 9.88 : 1

'Natural speed' for length: 26.95 kts

Power going to wave formation at top speed: 59 %

Trim (Max stability = 0, Max steadiness = 100): 63

Bow angle (Positive = bow angles forward): 35.00 degrees

Stern overhang: 9.84 ft / 3.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 26.57 ft / 8.10 m

- Forecastle (20 %): 19.69 ft / 6.00 m

- Mid (50 %): 19.69 ft / 6.00 m

- Quarterdeck (15 %): 19.69 ft / 6.00 m

- Stern: 19.69 ft / 6.00 m

- Average freeboard: 20.24 ft / 6.17 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 95.1 %

- Above water (accommodation/working, high = better): 141.7 %

Waterplane Area: 21,971 Square feet or 2,041 Square metres

Displacement factor (Displacement / loading): 124 %

Structure weight / hull surface area: 99 lbs/sq ft or 484 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.94

- Longitudinal: 1.70

- 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

Kanpur C-30, laid down 1934

Kohima C-31, laid down 1934

Kirandul C-34, laid down 1935

Kulpahar C-35, laid down 1935

Displacement:

8,600 t light; 9,016 t standard; 10,520 t normal; 11,723 t full load

Dimensions: Length overall / water x beam x draught

612.65 ft / 593.83 ft x 59.38 ft x 21.75 ft (normal load)

186.73 m / 181.00 m x 18.10 m x 6.63 m

Armament:

12 - 5.91" / 150 mm guns (4x3 guns), 102.98lbs / 46.71kg shells, 1934 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, evenly spread, 2 raised mounts - superfiring

8 - 4.92" / 125 mm guns (4x2 guns), 59.59lbs / 27.03kg shells, 1934 Model

Dual purpose guns in deck mounts with hoists

on side, all amidships

16 - 1.38" / 35.0 mm guns (8x2 guns), 1.31lbs / 0.59kg shells, 1934 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, 4 raised mounts

16 - 0.59" / 15.0 mm guns (4x4 guns), 0.10lbs / 0.05kg shells, 1934 Model

Machine guns in deck mounts

on side, evenly spread, all raised mounts

Weight of broadside 1,735 lbs / 787 kg

Shells per gun, main battery: 200

16 - 21.7" / 550 mm above water torpedoes

Armour:

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

Main: 3.94" / 100 mm 360.89 ft / 110.00 m 9.25 ft / 2.82 m

Ends: Unarmoured

Upper: 1.18" / 30 mm 78.74 ft / 24.00 m 8.01 ft / 2.44 m

Main Belt covers 93 % of normal length

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

Main: 3.94" / 100 mm 1.57" / 40 mm 3.94" / 100 mm

3rd: 1.18" / 30 mm - -

4th: 0.79" / 20 mm - -

5th: 0.79" / 20 mm - -

- Armour deck: 1.57" / 40 mm, Conning tower: 3.94" / 100 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 84,450 shp / 63,000 Kw = 33.00 kts

Range 20,000nm at 12.00 kts (Bunkerage = 2,707 tons)

Complement:

519 - 675

Cost:

£4.042 million / $16.167 million

Distribution of weights at normal displacement:

Armament: 217 tons, 2.1 %

Armour: 1,700 tons, 16.2 %

- Belts: 600 tons, 5.7 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 360 tons, 3.4 %

- Armour Deck: 699 tons, 6.6 %

- Conning Tower: 41 tons, 0.4 %

Machinery: 2,430 tons, 23.1 %

Hull, fittings & equipment: 4,104 tons, 39.0 %

Fuel, ammunition & stores: 1,920 tons, 18.2 %

Miscellaneous weights: 150 tons, 1.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

13,135 lbs / 5,958 Kg = 127.6 x 5.9 " / 150 mm shells or 1.7 torpedoes

Stability (Unstable if below 1.00): 1.05

Metacentric height 2.5 ft / 0.8 m

Roll period: 15.8 seconds

Steadiness - As gun platform (Average = 50 %): 70 %

- Recoil effect (Restricted arc if above 1.00): 0.58

Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:

Hull has a flush deck

and transom stern

Block coefficient: 0.480

Length to Beam Ratio: 10.00 : 1

'Natural speed' for length: 27.88 kts

Power going to wave formation at top speed: 57 %

Trim (Max stability = 0, Max steadiness = 100): 65

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: 26.90 ft / 8.20 m

- Forecastle (20 %): 19.69 ft / 6.00 m

- Mid (50 %): 19.69 ft / 6.00 m

- Quarterdeck (15 %): 19.69 ft / 6.00 m

- Stern: 19.69 ft / 6.00 m

- Average freeboard: 20.26 ft / 6.18 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 93.5 %

- Above water (accommodation/working, high = better): 115.7 %

Waterplane Area: 23,988 Square feet or 2,229 Square metres

Displacement factor (Displacement / loading): 125 %

Structure weight / hull surface area: 105 lbs/sq ft or 513 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.95

- Longitudinal: 1.51

- Overall: 1.00

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is adequate

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

This post has been edited 1 times, last edit by "perdedor99" (Dec 10th 2007, 11:35pm)

Patna C-32, laid down 1934

Ludhiana C-33, laid down 1934

Panna C-36, laid down 1936

Patan C-37, laid down 1936

Displacement:

5,736 t light; 5,985 t standard; 7,182 t normal; 8,140 t full load

Dimensions: Length overall / water x beam x draught

566.05 ft / 547.90 ft x 53.31 ft x 20.01 ft (normal load)

172.53 m / 167.00 m x 16.25 m x 6.10 m

Armament:

12 - 4.92" / 125 mm guns (6x2 guns), 59.59lbs / 27.03kg shells, 1934 Model

Dual purpose guns in deck mounts with hoists

on centreline ends, evenly spread, 4 raised mounts - superfiring

16 - 1.38" / 35.0 mm guns (8x2 guns), 1.31lbs / 0.59kg shells, 1934 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, 4 raised mounts

16 - 0.59" / 15.0 mm guns (4x4 guns), 0.10lbs / 0.05kg shells, 1934 Model

Machine guns in deck mounts

on side, all aft, all raised mounts - superfiring

Weight of broadside 738 lbs / 335 kg

Shells per gun, main battery: 250

10 - 21.7" / 550 mm above water torpedoes

Armour:

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

Main: 1.18" / 30 mm 356.14 ft / 108.55 m 8.86 ft / 2.70 m

Ends: Unarmoured

Upper: 1.18" / 30 mm 39.37 ft / 12.00 m 8.01 ft / 2.44 m

Main Belt covers 100 % of normal length

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

Main: 1.18" / 30 mm 0.79" / 20 mm 1.18" / 30 mm

3rd: 0.79" / 20 mm - -

4th: 0.79" / 20 mm - -

- Armour deck: 1.57" / 40 mm, Conning tower: 1.18" / 30 mm

Miscellaneous Weight:

-75 t: Two aircraft and a catapult

-40 t: Armor plating above torpedo carriages

-75 t: Weight reserve

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 2 shafts, 65,684 shp / 49,000 Kw = 32.85 kts

Range 20,000nm at 12.00 kts (Bunkerage = 2,155 tons)

Complement:

389 - 507

Cost:

£2.665 million / $10.658 million

Distribution of weights at normal displacement:

Armament: 92 tons, 1.3 %

Armour: 793 tons, 11.0 %

- Belts: 186 tons, 2.6 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 43 tons, 0.6 %

- Armour Deck: 555 tons, 7.7 %

- Conning Tower: 9 tons, 0.1 %

Machinery: 1,890 tons, 26.3 %

Hull, fittings & equipment: 2,771 tons, 38.6 %

Fuel, ammunition & stores: 1,446 tons, 20.1 %

Miscellaneous weights: 190 tons, 2.6 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

9,310 lbs / 4,223 Kg = 156.2 x 4.9 " / 125 mm shells or 1.4 torpedoes

Stability (Unstable if below 1.00): 1.19

Metacentric height 2.7 ft / 0.8 m

Roll period: 13.7 seconds

Steadiness - As gun platform (Average = 50 %): 70 %

- Recoil effect (Restricted arc if above 1.00): 0.33

Seaboat quality (Average = 1.00): 1.19

Hull form characteristics:

Hull has a flush deck

and transom stern

Block coefficient: 0.430

Length to Beam Ratio: 10.28 : 1

'Natural speed' for length: 26.89 kts

Power going to wave formation at top speed: 56 %

Trim (Max stability = 0, Max steadiness = 100): 59

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: 25.75 ft / 7.85 m

- Forecastle (20 %): 18.04 ft / 5.50 m

- Mid (50 %): 18.04 ft / 5.50 m

- Quarterdeck (15 %): 18.04 ft / 5.50 m

- Stern: 18.04 ft / 5.50 m

- Average freeboard: 18.66 ft / 5.69 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 99.2 %

- Above water (accommodation/working, high = better): 126.1 %

Waterplane Area: 19,046 Square feet or 1,769 Square metres

Displacement factor (Displacement / loading): 131 %

Structure weight / hull surface area: 87 lbs/sq ft or 423 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.94

- Longitudinal: 1.63

- 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

This post has been edited 2 times, last edit by "perdedor99" (Mar 13th 2008, 6:00pm)

Jaipur, India Light cruiser laid down 1919 (Engine 1928 ) Sold to Persia 1936.

Displacement:

4,567 t light; 4,670 t standard; 5,161 t normal; 5,553 t full load

Dimensions: Length overall / water x beam x draught

500.00 ft / 500.00 ft x 49.87 ft x 15.09 ft (normal load)

152.40 m / 152.40 m x 15.20 m x 4.60 m

Armour:

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

Main: 2.95" / 75 mm 377.30 ft / 115.00 m 8.46 ft / 2.58 m

Ends: Unarmoured

Main Belt covers 116 % of normal length

- Armour deck: 1.38" / 35 mm, Conning tower: 2.95" / 75 mm

Machinery:

Oil fired boilers, steam turbines,

Direct drive, 4 shafts, 40,179 shp / 29,973 Kw = 29.02 kts

Range 9,000nm at 12.00 kts

Bunker at max displacement = 883 tons

Complement:

303 - 395

Cost:

£0.731 million / $2.923 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %

Armour: 818 tons, 15.9 %

- Belts: 383 tons, 7.4 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 0 tons, 0.0 %

- Armour Deck: 416 tons, 8.1 %

- Conning Tower: 19 tons, 0.4 %

Machinery: 1,251 tons, 24.2 %

Hull, fittings & equipment: 1,798 tons, 34.8 %

Fuel, ammunition & stores: 594 tons, 11.5 %

Miscellaneous weights: 700 tons, 13.6 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

7,020 lbs / 3,184 Kg = 65.0 x 6 " / 152 mm shells or 1.3 torpedoes

Stability (Unstable if below 1.00): 1.12

Metacentric height 2.2 ft / 0.7 m

Roll period: 14.2 seconds

Steadiness - As gun platform (Average = 50 %): 74 %

- Recoil effect (Restricted arc if above 1.00): 0.00

Seaboat quality (Average = 1.00): 1.24

Hull form characteristics:

Hull has a flush deck

Block coefficient: 0.480

Length to Beam Ratio: 10.03 : 1

'Natural speed' for length: 22.36 kts

Power going to wave formation at top speed: 54 %

Trim (Max stability = 0, Max steadiness = 100): 60

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: 24.61 ft / 7.50 m

- Forecastle (20 %): 15.65 ft / 4.77 m

- Mid (50 %): 15.65 ft / 4.77 m

- Quarterdeck (10 %): 15.65 ft / 4.77 m

- Stern: 15.65 ft / 4.77 m

- Average freeboard: 16.37 ft / 4.99 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 93.9 %

- Above water (accommodation/working, high = better): 160.5 %

Waterplane Area: 16,318 Square feet or 1,516 Square metres

Displacement factor (Displacement / loading): 128 %

Structure weight / hull surface area: 70 lbs/sq ft or 342 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.99

- Longitudinal: 1.17

- Overall: 1.01

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

All weapons and aircrafts removed. Replaced with two different weapons systems based in the use of rockets. The first one is the use of rockets for ASW warfare. This barrage system composed of eight rails will be located in both aft and forward sections of the ship. Rockets with a 170mm warhead will be tested.

The second system will be the use of rockets for support of landing detachments. Rails for multiple barrage launches will be located where the aircraft facilities used to be located . Rockets with 125mm warheads will be used. They will be stored in the old hangars with the old aircraft fuel facilites also being used. Cranes will be kept to help with loading.

Displacement:

4,567 t light; 4,670 t standard; 5,161 t normal; 5,553 t full load

Dimensions: Length overall / water x beam x draught

500.00 ft / 500.00 ft x 49.87 ft x 15.09 ft (normal load)

152.40 m / 152.40 m x 15.20 m x 4.60 m

Armour:

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

Main: 2.95" / 75 mm 377.30 ft / 115.00 m 8.46 ft / 2.58 m

Ends: Unarmoured

Main Belt covers 116 % of normal length

- Armour deck: 1.38" / 35 mm, Conning tower: 2.95" / 75 mm

Machinery:

Oil fired boilers, steam turbines,

Direct drive, 4 shafts, 40,179 shp / 29,973 Kw = 29.02 kts

Range 9,000nm at 12.00 kts

Bunker at max displacement = 883 tons

Complement:

303 - 395

Cost:

£0.731 million / $2.923 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %

Armour: 818 tons, 15.9 %

- Belts: 383 tons, 7.4 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 0 tons, 0.0 %

- Armour Deck: 416 tons, 8.1 %

- Conning Tower: 19 tons, 0.4 %

Machinery: 1,251 tons, 24.2 %

Hull, fittings & equipment: 1,798 tons, 34.8 %

Fuel, ammunition & stores: 594 tons, 11.5 %

Miscellaneous weights: 700 tons, 13.6 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

7,020 lbs / 3,184 Kg = 65.0 x 6 " / 152 mm shells or 1.3 torpedoes

Stability (Unstable if below 1.00): 1.12

Metacentric height 2.2 ft / 0.7 m

Roll period: 14.2 seconds

Steadiness - As gun platform (Average = 50 %): 74 %

- Recoil effect (Restricted arc if above 1.00): 0.00

Seaboat quality (Average = 1.00): 1.24

Hull form characteristics:

Hull has a flush deck

Block coefficient: 0.480

Length to Beam Ratio: 10.03 : 1

'Natural speed' for length: 22.36 kts

Power going to wave formation at top speed: 54 %

Trim (Max stability = 0, Max steadiness = 100): 60

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: 24.61 ft / 7.50 m

- Forecastle (20 %): 15.65 ft / 4.77 m

- Mid (50 %): 15.65 ft / 4.77 m

- Quarterdeck (10 %): 15.65 ft / 4.77 m

- Stern: 15.65 ft / 4.77 m

- Average freeboard: 16.37 ft / 4.99 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 93.9 %

- Above water (accommodation/working, high = better): 160.5 %

Waterplane Area: 16,318 Square feet or 1,516 Square metres

Displacement factor (Displacement / loading): 128 %

Structure weight / hull surface area: 70 lbs/sq ft or 342 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.99

- Longitudinal: 1.17

- Overall: 1.01

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

All weapons and aircrafts removed. Replaced with two different weapons systems based in the use of rockets. The first one is the use of rockets for ASW warfare. This barrage system composed of eight rails will be located in both aft and forward sections of the ship. Rockets with a 170mm warhead will be tested.

The second system will be the use of rockets for support of landing detachments. Rails for multiple barrage launches will be located where the aircraft facilities used to be located . Rockets with 125mm warheads will be used. They will be stored in the old hangars with the old aircraft fuel facilites also being used. Cranes will be kept to help with loading.

This post has been edited 1 times, last edit by "perdedor99" (Jun 5th 2009, 7:20pm)

One of the agreements reached by the Gentlemen Agreement between Australia and Bharat were this extra heavy cruisers. While the original BNS plan was to build two 280mm armed ships the option was left open to build these ships in the future but the concerns of protection for the carriers was the main decision for starting construction of this class instead, leaving the 280mm armed ships for the time being on the drawing board.

Delhi, India Heavy Cruiser laid down 1936

Delhi, AC-1, laid down 1936

Mumbai, AC-2 laid down 1936

Displacement:

17,680 t light; 18,517 t standard; 20,755 t normal; 22,545 t full load

Dimensions: Length overall / water x beam x draught

741.55 ft / 721.78 ft x 72.18 ft x 27.89 ft (normal load)

226.02 m / 220.00 m x 22.00 m x 8.50 m

Armament:

9 - 9.84" / 250 mm guns (3x3 guns), 476.75lbs / 216.25kg shells, 1936 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, majority forward, 1 raised mount - superfiring

2 - 4.92" / 125 mm guns (1x2 guns), 59.59lbs / 27.03kg shells, 1936 Model

Dual purpose guns in a deck mount with hoist

on centreline aft, all raised guns - superfiring

8 - 4.92" / 125 mm guns (4x2 guns), 59.59lbs / 27.03kg shells, 1936 Model

Dual purpose guns in deck mounts with hoists

on side, evenly spread

24 - 1.38" / 35.0 mm guns (12x2 guns), 1.31lbs / 0.59kg shells, 1936 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, 6 raised mounts

16 - 0.59" / 15.0 mm guns (4x4 guns), 0.10lbs / 0.05kg shells, 1936 Model

Machine guns in deck mounts

on side, evenly spread, all raised mounts

Weight of broadside 4,920 lbs / 2,232 kg

Shells per gun, main battery: 150

8 - 21.7" / 550 mm above water torpedoes

Armour:

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

Main: 11.0" / 280 mm 413.39 ft / 126.00 m 10.20 ft / 3.11 m

Ends: Unarmoured

Main Belt covers 88 % of normal length

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

Main: 11.0" / 280 mm 3.94" / 100 mm 9.84" / 250 mm

2nd: 1.18" / 30 mm - -

3rd: 1.18" / 30 mm - -

4th: 0.79" / 20 mm - -

- Armour deck: 3.94" / 100 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 121,386 shp / 90,554 Kw = 33.00 kts

Range 20,000nm at 12.00 kts

Bunker at max displacement = 4,028 tons

Complement:

863 - 1,123

Cost:

£9.022 million / $36.089 million

Distribution of weights at normal displacement:

Armament: 615 tons, 3.0 %

Armour: 5,748 tons, 27.7 %

- Belts: 1,974 tons, 9.5 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 1,145 tons, 5.5 %

- Armour Deck: 2,629 tons, 12.7 %

- Conning Tower: 0 tons, 0.0 %

Machinery: 3,324 tons, 16.0 %

Hull, fittings & equipment: 7,943 tons, 38.3 %

Fuel, ammunition & stores: 3,075 tons, 14.8 %

Miscellaneous weights: 50 tons, 0.2 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

26,942 lbs / 12,221 Kg = 56.5 x 9.8 " / 250 mm shells or 2.8 torpedoes

Stability (Unstable if below 1.00): 1.12

Metacentric height 3.8 ft / 1.2 m

Roll period: 15.6 seconds

Steadiness - As gun platform (Average = 50 %): 50 %

- Recoil effect (Restricted arc if above 1.00): 0.51

Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:

Hull has rise forward of midbreak

and transom stern

Block coefficient: 0.500

Length to Beam Ratio: 10.00 : 1

'Natural speed' for length: 30.66 kts

Power going to wave formation at top speed: 53 %

Trim (Max stability = 0, Max steadiness = 100): 50

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: 28.54 ft / 8.70 m

- Forecastle (35 %): 21.00 ft / 6.40 m

- Mid (50 %): 21.00 ft / 6.40 m (15.75 ft / 4.80 m aft of break)

- Quarterdeck (15 %): 15.75 ft / 4.80 m

- Stern: 15.75 ft / 4.80 m

- Average freeboard: 19.43 ft / 5.92 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 75.8 %

- Above water (accommodation/working, high = better): 122.5 %

Waterplane Area: 36,097 Square feet or 3,354 Square metres

Displacement factor (Displacement / loading): 120 %

Structure weight / hull surface area: 143 lbs/sq ft or 698 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 1.05

- Longitudinal: 1.21

- Overall: 1.06

Hull space for machinery, storage, compartmentation is excellent

Room for accommodation and workspaces is excellent

This post has been edited 2 times, last edit by "perdedor99" (May 4th 2010, 4:47pm)

With the Abuse Treaty in place Bharat now was able to laid down the 280mm armed cruisers they wanted. Plans were made to start construction for two of them in 1938, with the option of maybe more being built later on.

Hyderabad, Indian Heavy Cruiser laid down 1938

AC-3 Hyderabad, laid down 1938, to Japan 1942

AC-4 Bangalore, laid down 1939, to Japan 1942

Displacement:

17,917 t light; 18,686 t standard; 20,143 t normal; 21,309 t full load

Dimensions: Length overall / water x beam x draught

731.97 ft / 715.22 ft x 72.83 ft x 24.61 ft (normal load)

223.10 m / 218.00 m x 22.20 m x 7.50 m

Armament:

8 - 11.02" / 280 mm guns (4x2 guns), 669.80lbs / 303.81kg shells, 1938 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, evenly spread, 2 raised mounts - superfiring

12 - 4.92" / 125 mm guns (6x2 guns), 59.59lbs / 27.03kg shells, 1938 Model

Dual purpose guns in deck mounts with hoists

on side, evenly spread, 2 raised mounts

20 - 1.38" / 35.0 mm guns (10x2 guns), 1.31lbs / 0.59kg shells, 1938 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, all raised mounts

24 - 0.59" / 15.0 mm guns (6x4 guns), 0.10lbs / 0.05kg shells, 1938 Model

Machine guns in deck mounts

on side, evenly spread, all raised mounts

Weight of broadside 6,102 lbs / 2,768 kg

Shells per gun, main battery: 105

Armour:

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

Main: 9.06" / 230 mm 403.12 ft / 122.87 m 10.50 ft / 3.20 m

Ends: Unarmoured

Main Belt covers 87% of normal length

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

Main: 9.84" / 250 mm 3.94" / 100 mm 9.06" / 230 mm

2nd: 1.38" / 35 mm 0.98" / 25 mm 1.18" / 30 mm

3rd: 0.59" / 15 mm - -

4th: 0.39" / 10 mm - -

- Armour deck: 3.15" / 80 mm, Conning tower: 2.76" / 70 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 126,000 shp / 93,996 Kw = 33.24 kts

Range 8,000nm at 15.00 kts

Bunker at max displacement = 2,623 tons

Complement:

845 - 1,099

Cost:

£9.295 million / $37.178 million

Distribution of weights at normal displacement:

Armament: 763 tons, 3.8%

Armour: 5,250 tons, 26.1%

- Belts: 1,638 tons, 8.1%

- Torpedo bulkhead: 0 tons, 0.0%

- Armament: 1,363 tons, 6.8%

- Armour Deck: 2,205 tons, 10.9%

- Conning Tower: 44 tons, 0.2%

Machinery: 3,535 tons, 17.6%

Hull, fittings & equipment: 8,269 tons, 41.1%

Fuel, ammunition & stores: 2,226 tons, 11.1%

Miscellaneous weights: 100 tons, 0.5%

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

25,924 lbs / 11,759 Kg = 38.7 x 11.0 " / 280 mm shells or 2.4 torpedoes

Stability (Unstable if below 1.00): 1.05

Metacentric height 3.4 ft / 1.0 m

Roll period: 16.5 seconds

Steadiness - As gun platform (Average = 50 %): 51 %

- Recoil effect (Restricted arc if above 1.00): 0.88

Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:

Hull has rise forward of midbreak

and transom stern

Block coefficient: 0.550

Length to Beam Ratio: 9.82 : 1

'Natural speed' for length: 30.40 kts

Power going to wave formation at top speed: 55 %

Trim (Max stability = 0, Max steadiness = 100): 51

Bow angle (Positive = bow angles forward): 25.00 degrees

Stern overhang: 3.28 ft / 1.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 28.87 ft / 8.80 m

- Forecastle (35%): 23.46 ft / 7.15 m

- Mid (75%): 23.46 ft / 7.15 m (15.58 ft / 4.75 m aft of break)

- Quarterdeck (15%): 15.58 ft / 4.75 m

- Stern: 15.58 ft / 4.75 m

- Average freeboard: 22.25 ft / 6.78 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 86.4%

- Above water (accommodation/working, high = better): 186.7%

Waterplane Area: 37,849 Square feet or 3,516 Square metres

Displacement factor (Displacement / loading): 109%

Structure weight / hull surface area: 144 lbs/sq ft or 705 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.98

- Longitudinal: 1.21

- Overall: 1.00

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is excellent

Hyderabad, Indian Heavy Cruiser laid down 1938

AC-3 Hyderabad, laid down 1938, to Japan 1942

AC-4 Bangalore, laid down 1939, to Japan 1942

Displacement:

17,917 t light; 18,686 t standard; 20,143 t normal; 21,309 t full load

Dimensions: Length overall / water x beam x draught

731.97 ft / 715.22 ft x 72.83 ft x 24.61 ft (normal load)

223.10 m / 218.00 m x 22.20 m x 7.50 m

Armament:

8 - 11.02" / 280 mm guns (4x2 guns), 669.80lbs / 303.81kg shells, 1938 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, evenly spread, 2 raised mounts - superfiring

12 - 4.92" / 125 mm guns (6x2 guns), 59.59lbs / 27.03kg shells, 1938 Model

Dual purpose guns in deck mounts with hoists

on side, evenly spread, 2 raised mounts

20 - 1.38" / 35.0 mm guns (10x2 guns), 1.31lbs / 0.59kg shells, 1938 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, all raised mounts

24 - 0.59" / 15.0 mm guns (6x4 guns), 0.10lbs / 0.05kg shells, 1938 Model

Machine guns in deck mounts

on side, evenly spread, all raised mounts

Weight of broadside 6,102 lbs / 2,768 kg

Shells per gun, main battery: 105

Armour:

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

Main: 9.06" / 230 mm 403.12 ft / 122.87 m 10.50 ft / 3.20 m

Ends: Unarmoured

Main Belt covers 87% of normal length

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

Main: 9.84" / 250 mm 3.94" / 100 mm 9.06" / 230 mm

2nd: 1.38" / 35 mm 0.98" / 25 mm 1.18" / 30 mm

3rd: 0.59" / 15 mm - -

4th: 0.39" / 10 mm - -

- Armour deck: 3.15" / 80 mm, Conning tower: 2.76" / 70 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 126,000 shp / 93,996 Kw = 33.24 kts

Range 8,000nm at 15.00 kts

Bunker at max displacement = 2,623 tons

Complement:

845 - 1,099

Cost:

£9.295 million / $37.178 million

Distribution of weights at normal displacement:

Armament: 763 tons, 3.8%

Armour: 5,250 tons, 26.1%

- Belts: 1,638 tons, 8.1%

- Torpedo bulkhead: 0 tons, 0.0%

- Armament: 1,363 tons, 6.8%

- Armour Deck: 2,205 tons, 10.9%

- Conning Tower: 44 tons, 0.2%

Machinery: 3,535 tons, 17.6%

Hull, fittings & equipment: 8,269 tons, 41.1%

Fuel, ammunition & stores: 2,226 tons, 11.1%

Miscellaneous weights: 100 tons, 0.5%

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

25,924 lbs / 11,759 Kg = 38.7 x 11.0 " / 280 mm shells or 2.4 torpedoes

Stability (Unstable if below 1.00): 1.05

Metacentric height 3.4 ft / 1.0 m

Roll period: 16.5 seconds

Steadiness - As gun platform (Average = 50 %): 51 %

- Recoil effect (Restricted arc if above 1.00): 0.88

Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:

Hull has rise forward of midbreak

and transom stern

Block coefficient: 0.550

Length to Beam Ratio: 9.82 : 1

'Natural speed' for length: 30.40 kts

Power going to wave formation at top speed: 55 %

Trim (Max stability = 0, Max steadiness = 100): 51

Bow angle (Positive = bow angles forward): 25.00 degrees

Stern overhang: 3.28 ft / 1.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 28.87 ft / 8.80 m

- Forecastle (35%): 23.46 ft / 7.15 m

- Mid (75%): 23.46 ft / 7.15 m (15.58 ft / 4.75 m aft of break)

- Quarterdeck (15%): 15.58 ft / 4.75 m

- Stern: 15.58 ft / 4.75 m

- Average freeboard: 22.25 ft / 6.78 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 86.4%

- Above water (accommodation/working, high = better): 186.7%

Waterplane Area: 37,849 Square feet or 3,516 Square metres

Displacement factor (Displacement / loading): 109%

Structure weight / hull surface area: 144 lbs/sq ft or 705 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.98

- Longitudinal: 1.21

- Overall: 1.00

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is excellent

This post has been edited 2 times, last edit by "perdedor99" (Jan 31st 2010, 3:44am)

First cruisers laid down in four years, the Chapras were an evolution of the Vadadoras. Similar in layout they were basically enlarged with an heavier main gun as following the trends presented during the past decade to increase the size of the main battery. Four were planned with two laid down 1940.

The change in government saw a different approach in cruiser design. Work was suspended on the lead two units, and they were sold to Greece when 41% complete. The third unit, marked for conversion to an carrier, was scrapped on the way three months after being laid down.

Chapra, India Heavy Cruiser laid down 1940

C Chapra, C-38, laid down 1940, to Greece 1942

C Chiplun, C-39, laid down 1940, to Greece 1942

C Cuttack C-40, laid down 1941 (completed as light carrier)

Displacement:

12,843 t light; 13,518 t standard; 15,317 t normal; 16,756 t full load

Dimensions: Length overall / water x beam x draught

673.36 ft / 656.17 ft x 68.90 ft x 23.62 ft (normal load)

205.24 m / 200.00 m x 21.00 m x 7.20 m

Armament:

8 - 9.84" / 250 mm guns (4x2 guns), 476.75lbs / 216.25kg shells, 1940 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, evenly spread, 2 raised mounts - superfiring

8 - 4.92" / 125 mm guns (4x2 guns), 59.59lbs / 27.03kg shells, 1940 Model

Dual purpose guns in deck mounts with hoists

on side, all amidships

14 - 1.38" / 35.0 mm guns (7x2 guns), 1.31lbs / 0.59kg shells, 1940 Model

Anti-aircraft guns in deck mounts

on side, evenly spread

24 - 0.59" / 15.0 mm guns (6x4 guns), 0.10lbs / 0.05kg shells, 1940 Model

Machine guns in deck mounts

on side, evenly spread, all raised mounts

Weight of broadside 4,312 lbs / 1,956 kg

Shells per gun, main battery: 150

16 - 21.7" / 550 mm above water torpedoes

Armour:

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

Main: 6.10" / 155 mm 426.51 ft / 130.00 m 9.97 ft / 3.04 m

Ends: Unarmoured

Main Belt covers 100% of normal length

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

Main: 8.27" / 210 mm 3.94" / 100 mm 8.27" / 210 mm

2nd: 1.57" / 40 mm 0.79" / 20 mm 1.18" / 30 mm

3rd: 0.79" / 20 mm - -

4th: 0.79" / 20 mm - -

- Armour deck: 1.77" / 45 mm, Conning tower: 5.12" / 130 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 92,401 shp / 68,931 Kw = 32.00 kts

Range 20,000nm at 12.00 kts

Bunker at max displacement = 3,238 tons

Complement:

687 - 894

Cost:

£7.489 million / $29.954 million

Distribution of weights at normal displacement:

Armament: 539 tons, 3.5%

Armour: 3,272 tons, 21.4%

- Belts: 1,085 tons, 7.1%

- Torpedo bulkhead: 0 tons, 0.0%

- Armament: 1,091 tons, 7.1%

- Armour Deck: 1,029 tons, 6.7%

- Conning Tower: 68 tons, 0.4%

Machinery: 2,471 tons, 16.1%

Hull, fittings & equipment: 6,361 tons, 41.5%

Fuel, ammunition & stores: 2,474 tons, 16.2%

Miscellaneous weights: 200 tons, 1.3%

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

20,830 lbs / 9,449 Kg = 43.7 x 9.8 " / 250 mm shells or 2.4 torpedoes

Stability (Unstable if below 1.00): 1.07

Metacentric height 3.2 ft / 1.0 m

Roll period: 16.1 seconds

Steadiness - As gun platform (Average = 50 %): 52 %

- Recoil effect (Restricted arc if above 1.00): 0.72

Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:

Hull has a flush deck

and transom stern

Block coefficient: 0.502

Length to Beam Ratio: 9.52 : 1

'Natural speed' for length: 29.34 kts

Power going to wave formation at top speed: 54 %

Trim (Max stability = 0, Max steadiness = 100): 50

Bow angle (Positive = bow angles forward): 20.00 degrees

Stern overhang: 6.56 ft / 2.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 29.20 ft / 8.90 m

- Forecastle (20%): 20.01 ft / 6.10 m

- Mid (50%): 19.69 ft / 6.00 m

- Quarterdeck (15%): 19.69 ft / 6.00 m

- Stern: 19.69 ft / 6.00 m

- Average freeboard: 20.53 ft / 6.26 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 81.5%

- Above water (accommodation/working, high = better): 130.1%

Waterplane Area: 31,382 Square feet or 2,916 Square metres

Displacement factor (Displacement / loading): 120%

Structure weight / hull surface area: 133 lbs/sq ft or 648 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.97

- Longitudinal: 1.31

- Overall: 1.00

Hull space for machinery, storage, compartmentation is excellent

Room for accommodation and workspaces is excellent

The change in government saw a different approach in cruiser design. Work was suspended on the lead two units, and they were sold to Greece when 41% complete. The third unit, marked for conversion to an carrier, was scrapped on the way three months after being laid down.

Chapra, India Heavy Cruiser laid down 1940

C Chapra, C-38, laid down 1940, to Greece 1942

C Chiplun, C-39, laid down 1940, to Greece 1942

C Cuttack C-40, laid down 1941 (completed as light carrier)

Displacement:

12,843 t light; 13,518 t standard; 15,317 t normal; 16,756 t full load

Dimensions: Length overall / water x beam x draught

673.36 ft / 656.17 ft x 68.90 ft x 23.62 ft (normal load)

205.24 m / 200.00 m x 21.00 m x 7.20 m

Armament:

8 - 9.84" / 250 mm guns (4x2 guns), 476.75lbs / 216.25kg shells, 1940 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, evenly spread, 2 raised mounts - superfiring

8 - 4.92" / 125 mm guns (4x2 guns), 59.59lbs / 27.03kg shells, 1940 Model

Dual purpose guns in deck mounts with hoists

on side, all amidships

14 - 1.38" / 35.0 mm guns (7x2 guns), 1.31lbs / 0.59kg shells, 1940 Model

Anti-aircraft guns in deck mounts

on side, evenly spread

24 - 0.59" / 15.0 mm guns (6x4 guns), 0.10lbs / 0.05kg shells, 1940 Model

Machine guns in deck mounts

on side, evenly spread, all raised mounts

Weight of broadside 4,312 lbs / 1,956 kg

Shells per gun, main battery: 150

16 - 21.7" / 550 mm above water torpedoes

Armour:

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

Main: 6.10" / 155 mm 426.51 ft / 130.00 m 9.97 ft / 3.04 m

Ends: Unarmoured

Main Belt covers 100% of normal length

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

Main: 8.27" / 210 mm 3.94" / 100 mm 8.27" / 210 mm

2nd: 1.57" / 40 mm 0.79" / 20 mm 1.18" / 30 mm

3rd: 0.79" / 20 mm - -

4th: 0.79" / 20 mm - -

- Armour deck: 1.77" / 45 mm, Conning tower: 5.12" / 130 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 92,401 shp / 68,931 Kw = 32.00 kts

Range 20,000nm at 12.00 kts

Bunker at max displacement = 3,238 tons

Complement:

687 - 894

Cost:

£7.489 million / $29.954 million

Distribution of weights at normal displacement:

Armament: 539 tons, 3.5%

Armour: 3,272 tons, 21.4%

- Belts: 1,085 tons, 7.1%

- Torpedo bulkhead: 0 tons, 0.0%

- Armament: 1,091 tons, 7.1%

- Armour Deck: 1,029 tons, 6.7%

- Conning Tower: 68 tons, 0.4%

Machinery: 2,471 tons, 16.1%

Hull, fittings & equipment: 6,361 tons, 41.5%

Fuel, ammunition & stores: 2,474 tons, 16.2%

Miscellaneous weights: 200 tons, 1.3%

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

20,830 lbs / 9,449 Kg = 43.7 x 9.8 " / 250 mm shells or 2.4 torpedoes

Stability (Unstable if below 1.00): 1.07

Metacentric height 3.2 ft / 1.0 m

Roll period: 16.1 seconds

Steadiness - As gun platform (Average = 50 %): 52 %

- Recoil effect (Restricted arc if above 1.00): 0.72

Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:

Hull has a flush deck

and transom stern

Block coefficient: 0.502

Length to Beam Ratio: 9.52 : 1

'Natural speed' for length: 29.34 kts

Power going to wave formation at top speed: 54 %

Trim (Max stability = 0, Max steadiness = 100): 50

Bow angle (Positive = bow angles forward): 20.00 degrees

Stern overhang: 6.56 ft / 2.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 29.20 ft / 8.90 m

- Forecastle (20%): 20.01 ft / 6.10 m

- Mid (50%): 19.69 ft / 6.00 m

- Quarterdeck (15%): 19.69 ft / 6.00 m

- Stern: 19.69 ft / 6.00 m

- Average freeboard: 20.53 ft / 6.26 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 81.5%

- Above water (accommodation/working, high = better): 130.1%

Waterplane Area: 31,382 Square feet or 2,916 Square metres

Displacement factor (Displacement / loading): 120%

Structure weight / hull surface area: 133 lbs/sq ft or 648 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.97

- Longitudinal: 1.31

- Overall: 1.00

Hull space for machinery, storage, compartmentation is excellent

Room for accommodation and workspaces is excellent

This post has been edited 1 times, last edit by "perdedor99" (Oct 22nd 2010, 6:54pm)

The Dombivli class light cruisers are larger updates of the earlier Kanpur class; they gain additional light guns, and ship a new 57mm weapon for anti-air purposes. They have heavier deck armor, more extensive belt protection, and increased range.

One unit will be fit into the 1942 program, and at least one additional unit is planned for 1943.

Dombivli, C-41, laid down 1942

Hyderabad, C-42, laid down 1943

Dombivli, Bharati light cruiser, laid down 1942

Displacement:

10,237 t light; 10,875 t standard; 12,758 t normal; 14,264 t full load

Dimensions: Length overall / water x beam x draught

641.00 ft / 629.92 ft x 62.99 ft x 22.97 ft (normal load)

195.38 m / 192.00 m x 19.20 m x 7.00 m

Armament:

12 - 5.91" / 150 mm guns (4x3 guns), 102.98lbs / 46.71kg shells, 1942 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, evenly spread, 2 raised mounts - superfiring

12 - 4.92" / 125 mm guns (6x2 guns), 59.59lbs / 27.03kg shells, 1942 Model

Dual purpose guns in deck mounts with hoists

on side, all amidships, 2 raised mounts - superfiring

24 - 2.24" / 57.0 mm guns (12x2 guns), 5.65lbs / 2.56kg shells, 1942 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, 4 raised mounts

16 - 0.59" / 15.0 mm guns (4x4 guns), 0.10lbs / 0.05kg shells, 1942 Model

Machine guns in deck mounts

on side, evenly spread, all raised mounts

Weight of broadside 2,088 lbs / 947 kg

Shells per gun, main battery: 300

8 - 21.7" / 550 mm above water torpedoes

Armour:

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

Main: 3.94" / 100 mm 409.45 ft / 124.80 m 16.01 ft / 4.88 m

Ends: Unarmoured

Main Belt covers 100 % of normal length

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

Main: 3.94" / 100 mm 1.97" / 50 mm 3.94" / 100 mm

2nd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm

3rd: 0.79" / 20 mm - -

4th: 0.39" / 10 mm - -

- Armour deck: 1.97" / 50 mm, Conning tower: 3.94" / 100 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 93,834 shp / 70,000 Kw = 33.02 kts

Range 15,000nm at 15.00 kts (Bunkerage = 3,389 tons)

Complement:

599 - 780

Cost:

£5.859 million / $23.437 million

Distribution of weights at normal displacement:

Armament: 261 tons, 2.0 %

Armour: 2,533 tons, 19.9 %

- Belts: 1,074 tons, 8.4 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 422 tons, 3.3 %

- Armour Deck: 992 tons, 7.8 %

- Conning Tower: 46 tons, 0.4 %

Machinery: 2,451 tons, 19.2 %

Hull, fittings & equipment: 4,785 tons, 37.5 %

Fuel, ammunition & stores: 2,521 tons, 19.8 %

Miscellaneous weights: 207 tons, 1.6 %

-50 t: 1 x floatplane and catapult aft

-157 t: Sensors, weight reserve, etc – to be further detailed.

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

18,591 lbs / 8,433 Kg = 180.5 x 5.9 " / 150 mm shells or 2.1 torpedoes

Stability (Unstable if below 1.00): 1.14

Metacentric height 3.2 ft / 1.0 m

Roll period: 14.8 seconds

Steadiness - As gun platform (Average = 50 %): 60 %

- Recoil effect (Restricted arc if above 1.00): 0.49

Seaboat quality (Average = 1.00): 1.11

Hull form characteristics:

Hull has a flush deck

and transom stern

Block coefficient: 0.490

Length to Beam Ratio: 10.00 : 1

'Natural speed' for length: 28.68 kts

Power going to wave formation at top speed: 56 %

Trim (Max stability = 0, Max steadiness = 100): 54

Bow angle (Positive = bow angles forward): 10.00 degrees

Stern overhang: 6.56 ft / 2.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 25.59 ft / 7.80 m

- Forecastle (20 %): 20.67 ft / 6.30 m

- Mid (50 %): 20.67 ft / 6.30 m

- Quarterdeck (15 %): 20.67 ft / 6.30 m

- Stern: 20.67 ft / 6.30 m

- Average freeboard: 21.06 ft / 6.42 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 82.3 %

- Above water (accommodation/working, high = better): 152.6 %

Waterplane Area: 27,240 Square feet or 2,531 Square metres

Displacement factor (Displacement / loading): 131 %

Structure weight / hull surface area: 109 lbs/sq ft or 535 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.96

- Longitudinal: 1.41

- Overall: 1.00

Hull space for machinery, storage, compartmentation is excellent

Room for accommodation and workspaces is excellent

The Bangalore class cruisers are the largest light cruisers laid down by the BNS to date. A pair of units - Bangalore and Karachi - will be laid down in 1945 and 1946 respectively, and will likely form the heavy escort for the aircraft carrier Trishula once all are in service.

The class is designed around the twin 150mm automatic gun designed in collaboration with the RSAN and tested on the monitor Chandragupta. While the test mount has naturally experienced teething difficulties, these are gradually being resolved and it is felt that the mount will be ready for service by the time Bangalore completes trials in early 1947. Some consideration was given towards shipping a fifth turret aft, but the type was considered to be expensive enough as it was.

At this time, the 150 mm auto is considered to be an anti-surface weapon with limited anti-air capability. There is some skepticism about developing a true dual-purpose weapon, given the potential difficulty of tracking fast aerial targets with such heavy mountings and the overkill of 150mm shells against most conceivable aircraft. Consequently, a medium AA battery continues to be carried, along with a light battery of 57mm and 25mm guns.

Protection is improved in all respects over the previous Dombivli class, and speed and endurance are effectively the same. No aircraft are embarked, as the scouting function will be conducted by the screened carrier; that said, the quarterdeck may allow for autogyro landings.

Bangalore, C-43, laid down 1945

Karachi, C-44, laid down 1946

Enter ship name, Enter country Enter ship type laid down 1945

Displacement:

10,902 t light; 11,670 t standard; 13,567 t normal; 15,084 t full load

Dimensions: Length overall / water x beam x draught

620.39 ft / 603.67 ft x 60.70 ft x 25.92 ft (normal load)

189.09 m / 184.00 m x 18.50 m x 7.90 m

Armament:

8 - 5.91" / 150 mm guns (4x2 guns), 110.23lbs / 50.00kg shells, 1945 Model

Automatic rapid fire guns in turrets (on barbettes)

on centreline ends, evenly spread, 2 raised mounts - superfiring

4 - 4.92" / 125 mm guns (2x2 guns), 59.59lbs / 27.03kg shells, 1945 Model

Dual purpose guns in deck mounts with hoists

on centreline ends, evenly spread, all raised mounts

8 - 4.92" / 125 mm guns (4x2 guns), 59.59lbs / 27.03kg shells, 1945 Model

Dual purpose guns in deck mounts with hoists

on side, evenly spread

26 - 2.24" / 57.0 mm guns (13x2 guns), 5.65lbs / 2.56kg shells, 1945 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, 12 raised mounts

32 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1945 Model

Machine guns in deck mounts

on side, evenly spread, 18 raised mounts

Weight of broadside 1,759 lbs / 798 kg

Shells per gun, main battery: 450

8 - 21.7" / 550 mm above water torpedoes

Armour:

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

Main: 4.72" / 120 mm 393.70 ft / 120.00 m 16.01 ft / 4.88 m

Ends: Unarmoured

Main Belt covers 100 % of normal length

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

Main: 5.91" / 150 mm 1.97" / 50 mm 4.72" / 120 mm

2nd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm

3rd: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm

4th: 0.79" / 20 mm 0.39" / 10 mm -

5th: 0.39" / 10 mm - -

- Armour deck: 2.56" / 65 mm, Conning tower: 4.72" / 120 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 99,196 shp / 74,000 Kw = 32.99 kts

Range 15,000nm at 15.00 kts

Bunker at max displacement = 3,414 tons

Complement:

628 - 817

Cost:

£6.413 million / $25.652 million

Distribution of weights at normal displacement:

Armament: 233 tons, 1.7 %

Armour: 2,939 tons, 21.7 %

- Belts: 1,239 tons, 9.1 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 440 tons, 3.2 %

- Armour Deck: 1,202 tons, 8.9 %

- Conning Tower: 58 tons, 0.4 %

Machinery: 2,505 tons, 18.5 %

Hull, fittings & equipment: 4,761 tons, 35.1 %

Fuel, ammunition & stores: 2,664 tons, 19.6 %

Miscellaneous weights: 464 tons, 3.4 %

-230 t: Extra weight for four twin 150mm automatic turrets

-200 t: Electronics and fire control

-34 t: Weight reserve

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

19,411 lbs / 8,804 Kg = 188.5 x 5.9 " / 150 mm shells or 2.2 torpedoes

Stability (Unstable if below 1.00): 1.07

Metacentric height 2.7 ft / 0.8 m

Roll period: 15.5 seconds

Steadiness - As gun platform (Average = 50 %): 60 %

- Recoil effect (Restricted arc if above 1.00): 0.53

Seaboat quality (Average = 1.00): 1.15

Hull form characteristics:

Hull has low quarterdeck

and transom stern

Block coefficient: 0.500

Length to Beam Ratio: 9.95 : 1

'Natural speed' for length: 28.05 kts

Power going to wave formation at top speed: 58 %

Trim (Max stability = 0, Max steadiness = 100): 52

Bow angle (Positive = bow angles forward): 20.00 degrees

Stern overhang: 6.56 ft / 2.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 27.89 ft / 8.50 m

- Forecastle (20 %): 22.97 ft / 7.00 m

- Mid (50 %): 22.97 ft / 7.00 m

- Quarterdeck (20 %): 15.09 ft / 4.60 m (22.97 ft / 7.00 m before break)

- Stern: 15.09 ft / 4.60 m

- Average freeboard: 21.78 ft / 6.64 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 80.3 %

- Above water (accommodation/working, high = better): 148.6 %

Waterplane Area: 25,387 Square feet or 2,359 Square metres

Displacement factor (Displacement / loading): 132 %

Structure weight / hull surface area: 108 lbs/sq ft or 528 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.93

- Longitudinal: 1.82

- Overall: 1.00

Hull space for machinery, storage, compartmentation is excellent

Room for accommodation and workspaces is excellent

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