[SIZE=3]Kolkata Class Cruiser (Light)[/SIZE]
Changed the pictures again...because a third version was added. Also threw in some much needed detail in the other pics.
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)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++
Kolkata class, as rebuilt 1926
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)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++
Goa, Training Ship, rebuilt from Kolkata class light cruisers
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)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++