WesWorld

Godavari class collier (0 units) - 1910

Mahanadi class oiler (0 unit) - 1921

Commodore Laloo Sen class destroyer tender (2 units) - 1921/3

Ramree Island class oiler (2 units) - 1919/24

Captain Jagan Rane class tender (6 units) - 1928

Otta class repair ship (0 unit) - 1927

Petty Officer Surinder Grival class tender (4 units) - 1922/32

Dayaa class hospital ship (1 unit) - 1922/33

Minicoy class oiler (2 units) -1935/1942

Rajendra class harbour tug (9 units) - 1942

Shadi class boom defence ship/netlayer (8 units) - 1942

Pelikana class salvage ship (1 unit) - 1942

Diu class replenishment oiler (2 unit) - 1937/1942

Chattampi Swami class disaster relief ship (2 units) - 1942

Sahara class repair ship (1 unit) - 1935/1942

Type 1944 class river hospital boat (3 units) - 1944

Luharakhana class repair ship (1 unit) - 1929/1934

Kalpeni class replenishment oiler (2 units) - 1944

Note: Statistics are Springstyle output; capacity to absorb damage and crew size have not been modified as suggested by the Springstyle notes.

[SIZE=3]Godavari Class Collier[/SIZE]

Godavari, AC-1, laid down 1910, sunk 1916
Indrayati, AC-2, laid down 1911, scrapped 1926
Krishna, AC-3, laid down 1914, scrapped 1926
Bhima, AC-4, laid down 1915, converted to aircraft carrier Otta 1920
Mahaweli, AC-5, laid down 1915, scrapped 1927
Cauvery, AC-6, laid down 1916

Godavari, laid down 1910

Length, 142.7 m x Beam, 19.8 m x Depth, 5.5 m
9387 tonnes normal displacement (8687 tonnes standard)

Main battery: 2 x 10.5-cm
Secondary battery: 4 x 3.5-cm
QF battery: 4 x 1.5-cm

Weight of broadside: 35 kg

Hull unarmored

Battery armor:
Main, 5.0 cm shields / secondary, 2.0 cm
QF, 2.0 cm shields

Maximum speed for 3996 shaft kw = 15.00 knots
Approximate cruising radius, 6000 nm / 10 knots

Typical complement: 477-620


Estimated cost, $1.357 million (£339,000)

Remarks:

Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.

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 ......................... 10 tonnes = 0 pct
Armor, total ..................... 8 tonnes = 0 pct

Armament 8 tonnes = 0 pct

Machinery ........................ 243 tonnes = 3 pct
Hull and fittings; equipment ..... 4232 tonnes = 45 pct
Fuel, ammunition, stores ......... 894 tonnes = 10 pct
Miscellaneous weights ............ 4000 tonnes = 43 pct
-----
9387 tonnes = 100 pct

Estimated metacentric height, 0.9 m

Displacement summary:

Light ship: 8493 tonnes
Standard displacement: 8687 tonnes
Normal service: 9387 tonnes
Full load: 9909 tonnes

Loading submergence 2025 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.05

Shellfire needed to sink: 7720 kg = 482.2 x 10.5-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 3.0
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 60 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.01

Relative quality as a seaboat: 1.51

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


Hull form characteristics:

Block coefficient: 0.60
Sharpness coefficient: 0.40
Hull speed coefficient 'M' = 6.78
'Natural speed' for length = 21.6 knots
Power going to wave formation
at top speed: 30 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 56 percent

Relative accommodation and working space: 130 percent


Displacement factor: 205 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.77
(Structure weight per square
metre of hull surface: 680 kg)

Relative longitudinal hull strength: 1.91
(for 4.60 m average freeboard;
freeboard adjustment +0.04 m)

Relative composite hull strength: 1.78

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


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

468.00 x 65.00 x 18.00; 15.09 -- Dimensions
0.60 -- Block coefficient
1910 -- Year laid down
15.00 / 6000 / 10.00; Turbine, coal fired -- Speed / radius / cruise
4000 tons -- Miscellaneous weights
++++++++++
2 x 4.13; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
4 x 1.38; 0 -- Secondary battery; turrets
Main deck battery
:
4 x 0.59 -- Tertiary (QF/AA) battery
Gun-shields
:
0 -- No fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
1.97 / 0.79 / 0.79 / 0.00 -- Battery armor


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


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

[SIZE=3]Mahanadi Class Oiler[/SIZE]

Mahanadi, AO-1, laid down 1921, withdrawn from service 1942

Length, 140.0 m x Beam, 22.0 m x Depth, 5.5 m
9735 tonnes normal displacement (9058 tonnes standard)

Main battery: 2 x 10.5-cm
Secondary battery: 2 x 3.5-cm

Weight of broadside: 33 kg

Hull unarmored

Battery armor:
Main, 5.0 cm shields / secondary, 2.0 cm shields


Maximum speed for 2997 shaft kw = 13.70 knots
Approximate cruising radius, 8000 nm / 12 knots

Typical complement: 490-637


Estimated cost, $3.432 million (£858,000)

Remarks:

Good seaboat; rides out heavy weather easily.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.

Ship is roomy, with superior accommodation and working space.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 9 tonnes = 0 pct
Armor, total ..................... 6 tonnes = 0 pct

Armament 6 tonnes = 0 pct

Machinery ........................ 138 tonnes = 1 pct
Hull and fittings; equipment ..... 2704 tonnes = 28 pct
Fuel, ammunition, stores ......... 878 tonnes = 9 pct
Miscellaneous weights ............ 6000 tonnes = 62 pct
-----
9735 tonnes = 100 pct

Estimated metacentric height, 1.0 m

Displacement summary:

Light ship: 8857 tonnes
Standard displacement: 9058 tonnes
Normal service: 9735 tonnes
Full load: 10238 tonnes

Loading submergence 2131 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.02

Shellfire needed to sink: 5952 kg = 370.7 x 10.5-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 2.4
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 58 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.00

Relative quality as a seaboat: 1.45

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


Hull form characteristics:

Block coefficient: 0.57
Sharpness coefficient: 0.41
Hull speed coefficient 'M' = 6.58
'Natural speed' for length = 21.4 knots
Power going to wave formation
at top speed: 27 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 73 percent

Relative accommodation and working space: 125 percent


Displacement factor: 153 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.09
(Structure weight per square
metre of hull surface: 432 kg)

Relative longitudinal hull strength: 1.15
(for 4.30 m average freeboard;
freeboard adjustment -0.29 m)

Relative composite hull strength: 1.09

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


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

459.20 x 72.16 x 18.04; 14.10 -- Dimensions
0.57 -- Block coefficient
1921 -- Year laid down
13.70 / 8000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
6000 tons -- Miscellaneous weights
++++++++++
2 x 4.13; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
2 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
0 -- No tertiary (QF/AA) battery
0 -- No fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
1.97 / 0.79 / 0.00 / 0.00 -- Battery armor


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


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

[SIZE=3]Commodore Laloo Sen Class Destroyer Tender[/SIZE]

Commodore Laloo Sen, AT-1, laid down 1921, refitted to service 1923
Captain Kushil Iraani, AT-2, laid down 1921, refitted to service 1923

Commodore Laloo Sen, laid down 1921

Length, 111.0 m x Beam, 18.0 m x Depth, 4.0 m
4673 tonnes normal displacement (4117 tonnes standard)

Main battery: 2 x 10.5-cm
Secondary battery: 4 x 3.5-cm
AA battery: 2 x 1.5-cm

Weight of broadside: 35 kg

Hull unarmored

Battery armor:
Main, 5.0 cm shields / secondary, 2.0 cm shields
AA, 2.0 cm shields

Maximum speed for 3997 shaft kw = 16.59 knots
Approximate cruising radius, 10000 nm / 12 knots

Typical complement: 283-367


Estimated cost, $1.776 million (£444,000)

Remarks:

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

Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.

Ship is roomy, with superior accommodation and working space.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 10 tonnes = 0 pct
Armor, total ..................... 7 tonnes = 0 pct

Armament 7 tonnes = 0 pct

Machinery ........................ 184 tonnes = 4 pct
Hull and fittings; equipment ..... 2615 tonnes = 56 pct
Fuel, ammunition, stores ......... 657 tonnes = 14 pct
Miscellaneous weights ............ 1200 tonnes = 26 pct
-----
4673 tonnes = 100 pct

Estimated metacentric height, 0.8 m

Displacement summary:

Light ship: 4017 tonnes
Standard displacement: 4117 tonnes
Normal service: 4673 tonnes
Full load: 5100 tonnes

Loading submergence 1398 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.04

Shellfire needed to sink: 7037 kg = 438.3 x 10.5-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 3.5
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 100 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.02

Relative quality as a seaboat: 2.00

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


Hull form characteristics:

Block coefficient: 0.58
Sharpness coefficient: 0.42
Hull speed coefficient 'M' = 6.66
'Natural speed' for length = 19.1 knots
Power going to wave formation
at top speed: 41 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 44 percent

Relative accommodation and working space: 201 percent


Displacement factor: 283 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.54
(Structure weight per square
metre of hull surface: 573 kg)

Relative longitudinal hull strength: 3.93
(for 6.10 m average freeboard;
freeboard adjustment +2.13 m)

Relative composite hull strength: 1.69

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


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

364.08 x 59.04 x 13.12; 20.01 -- Dimensions
0.58 -- Block coefficient
1921 -- Year laid down
16.59 / 10000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
1200 tons -- Miscellaneous weights
++++++++++
2 x 4.13; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
4 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
2 x 0.59 -- Tertiary (QF/AA) battery
Gun-shields
:
0 -- No fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
1.97 / 0.79 / 0.79 / 0.00 -- Battery armor


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


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

[SIZE=3]Ramree Island Class Oiler[/SIZE]

Ramree Island, AO-2, laid down 1919, refitted to service 1924
Ceylon, AO-3, laid down 1919, refitted to service 1925

Ramree Island, laid down 1919

Length, 132.2 m x Beam, 21.0 m x Depth, 5.3 m
8604 tonnes normal displacement (8169 tonnes standard)

Main battery: 2 x 10.5-cm
Secondary battery: 2 x 3.5-cm

Weight of broadside: 33 kg

Hull unarmored

Battery armor:
Main, 5.0 cm shields / secondary, 2.0 cm shields


Maximum speed for 3998 shaft kw = 15.17 knots
Approximate cruising radius, 8000 nm / 10 knots

Typical complement: 447-581


Estimated cost, $2.740 million (£685,000)

Remarks:

Oil firing.

Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.

Ship is roomy, with superior accommodation and working space.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 9 tonnes = 0 pct
Armor, total ..................... 6 tonnes = 0 pct

Armament 6 tonnes = 0 pct

Machinery ........................ 190 tonnes = 2 pct
Hull and fittings; equipment ..... 2586 tonnes = 30 pct
Fuel, ammunition, stores ......... 613 tonnes = 7 pct
Miscellaneous weights ............ 5200 tonnes = 60 pct
-----
8604 tonnes = 100 pct

Estimated metacentric height, 0.9 m

Displacement summary:

Light ship: 7991 tonnes
Standard displacement: 8169 tonnes
Normal service: 8604 tonnes
Full load: 8918 tonnes

Loading submergence 1943 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.03

Shellfire needed to sink: 5262 kg = 328.7 x 10.5-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 2.2
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 57 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.00

Relative quality as a seaboat: 1.51

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


Hull form characteristics:

Block coefficient: 0.58
Sharpness coefficient: 0.42
Hull speed coefficient 'M' = 6.47
'Natural speed' for length = 20.8 knots
Power going to wave formation
at top speed: 33 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 74 percent

Relative accommodation and working space: 125 percent


Displacement factor: 152 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.16
(Structure weight per square
metre of hull surface: 450 kg)

Relative longitudinal hull strength: 1.34
(for 4.30 m average freeboard;
freeboard adjustment -0.18 m)

Relative composite hull strength: 1.18

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


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

433.62 x 68.88 x 17.38; 14.10 -- Dimensions
0.58 -- Block coefficient
1919 -- Year laid down
15.17 / 8000 / 10.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
5200 tons -- Miscellaneous weights
++++++++++
2 x 4.13; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
2 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
0 -- No tertiary (QF/AA) battery
0 -- No fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
1.97 / 0.79 / 0.00 / 0.00 -- Battery armor


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


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

[SIZE=3]Captain Jagan Rane Class Tender[/SIZE]

Designed to be base and repair ships for either six 200 t ASW launches, twelve MTBs, or a combination thereof. These would most likely be operating at more distant locations like Diego Garcia, As Salif, etc.

Much of the ship's working facilities are forward, with side and top doors for movement of cargo and munitions. The blocky area aft is the accommodation area.



Captain Jagan Rane, AT-3, laid down 1928
Lieutenant Narayan Bajpai, AT-4, laid down 1928
Captain-Lieutenant Narain Yadav, AT-5, laid down 1928
Lieutentant Arjun Karthikeyan, AT-6, laid down 1928
Petty Officer Shveta Ramalingam, AT-7, to be laid down 1929
Midshipman Neha Parashar, AT-8, to be laid down 1929

Misc. Weight:
396 t = accommodation for 198 "tendee" crew (at 2 t per)
168 t = fuel for "tendees" (6 full loads for launches)
78 t = ammunition and stores for tendees (6 full loads for launches)
25 t = flag facilities
25 t = medical facilities
100 t = workshops
108 t = repair materials

Length, 70.0 m x Beam, 13.0 m x Depth, 4.0 m
2202 tonnes normal displacement (1929 tonnes standard)

Main battery: 2 x 10.5-cm
Secondary battery: 4 x 3.5-cm
AA battery: 4 x 1.5-cm

Weight of broadside: 35 kg

Hull unarmored

Battery armor:
Main, 3.0 cm shields / secondary, 2.0 cm shields
AA, 2.0 cm shields

Maximum speed for 2997 shaft kw = 16.68 knots
Approximate cruising radius, 8000 nm / 12 knots

Typical complement: 161-209


Estimated cost, $1.394 million (£349,000)

Remarks:

Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.

Ship is roomy, with superior accommodation and working space.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 10 tonnes = 0 pct
Armor, total ..................... 5 tonnes = 0 pct

Armament 5 tonnes = 0 pct

Machinery ........................ 125 tonnes = 6 pct
Hull and fittings; equipment ..... 839 tonnes = 38 pct
Fuel, ammunition, stores ......... 323 tonnes = 15 pct
Miscellaneous weights ............ 900 tonnes = 41 pct
-----
2202 tonnes = 100 pct

Estimated metacentric height, 0.4 m

Displacement summary:

Light ship: 1879 tonnes
Standard displacement: 1929 tonnes
Normal service: 2202 tonnes
Full load: 2411 tonnes

Loading submergence 652 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.01

Shellfire needed to sink: 1975 kg = 123.0 x 10.5-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, 60 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.05

Relative quality as a seaboat: 2.00

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


Hull form characteristics:

Block coefficient: 0.60
Sharpness coefficient: 0.45
Hull speed coefficient 'M' = 5.39
'Natural speed' for length = 15.2 knots
Power going to wave formation
at top speed: 57 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 67 percent

Relative accommodation and working space: 149 percent


Displacement factor: 179 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.12
(Structure weight per square
metre of hull surface: 351 kg)

Relative longitudinal hull strength: 5.93
(for 5.50 m average freeboard;
freeboard adjustment +2.09 m)

Relative composite hull strength: 1.32

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


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

229.60 x 42.64 x 13.12; 18.04 -- Dimensions
0.60 -- Block coefficient
1928 -- Year laid down
16.68 / 8000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
900 tons -- Miscellaneous weights
++++++++++
2 x 4.13; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
4 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
4 x 0.59 -- Tertiary (QF/AA) battery
Gun-shields
:
0 -- No fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
1.18 / 0.79 / 0.79 / 0.00 -- Battery armor


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


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

[SIZE=3]Otta Class Repair Ship[/SIZE]

Now converted from an experimental carrier, Otta’s machinery was replaced, with smaller but equally effective oil-fired engines and increased bunkerage being added. Crew quarters were improved upon, and portions of the flight deck were removed to make way for workshops and warehouses. Two large cranes were installed such that they would have access to the elevators and the hanger-turned-warehouse areas they serviced. Two smaller cranes were placed in a derrick amidships to access small shuttered hatches servicing the workshops there. Around the base of the derrick was built a central observation area to coordinate the transfer of equipment to and from the ship.

The aft armament was retained, as were the light guns forward. The forward 10.5 cm guns were removed, one being re-sited forward on the centreline, the other being used for an anti-submarine launch being built nearby. The spaces left behind by the 10.5 cm guns were filled auxiliary conning stations. The pole mast once sited in the forward port gun sponson was moved to the leading edge of what had been Otta’s flight deck, placing it outside the turning radius of the heavy cranes.

Below: The three faces of Otta: collier (top), carrier (middle), repair ship (bottom)




Otta, Repair Ship, rebuilt 1927, to museum ship 1943

Length, 142.7 m x Beam, 19.8 m x Depth, 5.5 m
9387 tonnes normal displacement (8225 tonnes standard)

Main battery: 3 x 10.5-cm
Secondary battery: 8 x 3.5-cm

Weight of broadside: 53 kg

Hull unarmored

Battery armor:
Main, 3.0 cm shields / secondary, 2.0 cm shields


Maximum speed for 3996 shaft kw = 15.00 knots
Approximate cruising radius, 15000 nm / 12 knots

Typical complement: 477-620

Miscellaneous Weight:
-1,400 t: Workshops and fabrication plants
-500 t: Cranes
-2,000 t: Parts and spares
-500 t: Accommodation for 250 "displaced" crew
-75 t: Command facilities for "displaced" command staff
-25 t: Medical facilities


Estimated cost, $4.609 million (£1.152 million)

Remarks:

Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.

Ship is roomy, with superior accommodation and working space.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 15 tonnes = 0 pct
Armor, total ..................... 7 tonnes = 0 pct

Armament 7 tonnes = 0 pct

Machinery ........................ 169 tonnes = 2 pct
Hull and fittings; equipment ..... 3337 tonnes = 36 pct
Fuel, ammunition, stores ......... 1359 tonnes = 14 pct
Miscellaneous weights ............ 4500 tonnes = 48 pct
-----
9387 tonnes = 100 pct

Estimated metacentric height, 0.9 m

Displacement summary:

Light ship: 8028 tonnes
Standard displacement: 8225 tonnes
Normal service: 9387 tonnes
Full load: 10279 tonnes

Loading submergence 2025 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.05

Shellfire needed to sink: 7338 kg = 457.0 x 10.5-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 2.8
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 60 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.01

Relative quality as a seaboat: 1.58

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


Hull form characteristics:

Block coefficient: 0.60
Sharpness coefficient: 0.40
Hull speed coefficient 'M' = 6.78
'Natural speed' for length = 21.6 knots
Power going to wave formation
at top speed: 30 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 60 percent

Relative accommodation and working space: 133 percent


Displacement factor: 189 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.38
(Structure weight per square
metre of hull surface: 534 kg)

Relative longitudinal hull strength: 1.54
(for 4.70 m average freeboard;
freeboard adjustment +0.14 m)

Relative composite hull strength: 1.39

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


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

468.00 x 65.00 x 18.00; 15.42 -- Dimensions
0.60 -- Block coefficient
1927 -- Year laid down
15.00 / 15000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
4500 tons -- Miscellaneous weights
++++++++++
3 x 4.13; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
8 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
0 -- No tertiary (QF/AA) battery
0 -- No fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
1.18 / 0.79 / 0.00 / 0.00 -- Battery armor


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


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

Petty Officer Surinder Grival Class Submarine Tender

With the recent upswing in Indian pilgrims embarking on the Hajj to Mecca, Indian passenger ship lines are replacing their “older” ships with newer, larger, faster vessels capable of meeting the increased demand for service. As these new ships become available, the older ships are being sold for a song to local buyers - and the Bharatiya Nau Sena.

The Navy was able to negotiate the purchase of a quartet of decade-old liners previously owned by the M&J (Mumbai and Jiddah) Steamship Company as the company introduced new liners of ~11,000 t into service. These vessels are being refitted to function as submarine tenders, which involves the remodelling of recreational and cargo areas into workshops, storage areas, and torpedo magazines.

The tenders will be capable of housing the crews of up to a dozen typical coastal submarines (~40 men per boat) or a lesser number of ocean-going submarines. Limited flag and medical facilities are also provided.

Four vessels are slated for requisition and refitting between 1932 and 1934.



Petty Officer Surinder Grival, AT-9, laid down 1922, refitted to service 1932
Seaman Himanshi Bagchi, AT-10, laid down 1922, refitted to service 1933
Gunner Santosh Mattoo, AT-11, laid down 1923, refitted to service 1933
Seaman Ansar Hamidullah, AT-12, laid down 1923, refitted to service 1934

Grival, laid down 1922, refitted 1932

Length, 116.0 m x Beam, 18.4 m x Depth, 4.0 m
4734 tonnes normal displacement (3963 tonnes standard)

Main battery: 4 x 10.5-cm
Secondary battery: 8 x 3.5-cm
AA battery: 8 x 1.5-cm

Weight of broadside: 69 kg

Hull unarmored

Battery armor:
Main, 3.0 cm shields / secondary, 2.0 cm shields
AA, 2.0 cm shields

Maximum speed for 2397 shaft kw = 14.44 knots
Approximate cruising radius, 14000 nm / 12 knots

Typical complement: 285-371

Misc weight distribution:
-1100 t: Sub crew quarters (550 at 2 t each)
-50 t: Flag facilities
-50 t: Medical facilities
-200 t: Workshops
-400 t: Parts warehouse
-100 t: Stores and supplies (non-ordnance, fuel)
-40 t: Weight reserve


Estimated cost, $1.813 million (£453,000)

Remarks:

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

Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.

Ship is roomy, with superior accommodation and working space.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 19 tonnes = 0 pct
Armor, total ..................... 11 tonnes = 0 pct

Armament 11 tonnes = 0 pct

Machinery ........................ 109 tonnes = 2 pct
Hull and fittings; equipment ..... 1777 tonnes = 38 pct
Fuel, ammunition, stores ......... 878 tonnes = 19 pct
Miscellaneous weights ............ 1940 tonnes = 41 pct
-----
4734 tonnes = 100 pct

Estimated metacentric height, 0.8 m

Displacement summary:

Light ship: 3856 tonnes
Standard displacement: 3963 tonnes
Normal service: 4734 tonnes
Full load: 5332 tonnes

Loading submergence 1442 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.08

Shellfire needed to sink: 6245 kg = 390.1 x 10.5-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, 80 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.03

Relative quality as a seaboat: 2.00

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


Hull form characteristics:

Block coefficient: 0.55
Sharpness coefficient: 0.40
Hull speed coefficient 'M' = 6.93
'Natural speed' for length = 19.5 knots
Power going to wave formation
at top speed: 32 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 56 percent

Relative accommodation and working space: 236 percent


Displacement factor: 204 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.91
(Structure weight per square
metre of hull surface: 361 kg)

Relative longitudinal hull strength: 2.85
(for 7.00 m average freeboard;
freeboard adjustment +3.02 m)

Relative composite hull strength: 1.02

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


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

380.48 x 60.35 x 13.12; 22.96 -- Dimensions
0.55 -- Block coefficient
1922 -- Year laid down
14.44 / 14000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
1940 tons -- Miscellaneous weights
++++++++++
4 x 4.13; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
8 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
8 x 0.59 -- Tertiary (QF/AA) battery
Gun-shields
:
0 -- No fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
1.18 / 0.79 / 0.79 / 0.00 -- Battery armor


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


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

[SIZE=3]Dayaa Class Hospital Ship[/SIZE]

No drawing available; assume a passenger liner, with davits amidships, painted white with large red crescents on the sides.

Dayaa is another late addition to the Indian Fleet Train, a ten year old passenger liner hastily requisitioned as the situation in Asir began to deteriorate, and converted into service in the first half of 1932. Her function is primarily to treat casualties and provide ongoing care to the most seriously injured and/or unstable cases. Evacuation of less seriously injured and/or more stable casualties will be left to other called-up civilian vessels that can perform the function with considerably less alteration.

As the ship is a converted passenger vessel, she retains a high freeboard, thus her stability is on the low side. However, the strong seakeeping rating and the good steadiness rating should help both the staff and the patients greatly.

Accomodations for staff and patients has been simmed per "steerage passenger" guidelines: the ad-hoc, cramped conditions that suffice for a troopship won't work as well for hospital beds, gurneys, and the wide spaces needed to move casualties around. The staff - who will be working long and exhausting shifts - also need more extensive living space or they'll quickly burn out..

Work facilities include four operating tables, a large emergency/trauma centre, labs, and a pharmacy, plus warehousing for additional supplies such as may be embarked for disaster relief.

Two hundred tonnes have been provided for two LCIs, davits, and any equipment necessary to take casualties on board.

Note that the ship has been simmed out the ship with a single machine gun so springstyle won't crash. The ship should be considered unarmed, though events of the Asir conflict could well change that later.

Dayaa, laid down 1922

Length, 131.8 m x Beam, 20.5 m x Depth, 4.6 m
6892 tonnes normal displacement (6134 tonnes standard)

Main battery: 1 x 0.7-cm

Weight of broadside: 0 kg

Hull unarmored

Maximum speed for 4995 shaft kw = 16.75 knots
Approximate cruising radius, 11000 nm / 12 knots

Typical complement: 378-492

Miscellaneous Weight:
-Medical Staff Quarters: 350 @ 3.5 t = 1,225 t
-Patient "Beds" (~10 recovery, 30 ICU, 50 serious care, 110 light care): 200 @ 3.5 t = 700 t
-Facilities (~4 operating tables, large emergency/trauma centre, labs, pharmacy, etc): 400 t
-Supplies: 75 t
-2 x LCI, davits, casualty receiving facilities: 200 t


Estimated cost, $2.636 million (£659,000)

Remarks:

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

Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.

Ship is roomy, with superior accommodation and working space.


Distribution of weights:
Percent
normal
displacement:

Machinery ........................ 227 tonnes = 3 pct
Hull and fittings; equipment ..... 3169 tonnes = 46 pct
Fuel, ammunition, stores ......... 896 tonnes = 13 pct
Miscellaneous weights ............ 2600 tonnes = 38 pct
-----
6892 tonnes = 100 pct

Estimated metacentric height, 0.9 m

Displacement summary:

Light ship: 5996 tonnes
Standard displacement: 6134 tonnes
Normal service: 6892 tonnes
Full load: 7471 tonnes

Loading submergence 1825 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.04

Shellfire needed to sink: 10252 kg = 2155173.5 x 0.7-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 3.5
(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, 0.00

Relative quality as a seaboat: 2.00

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


Hull form characteristics:

Block coefficient: 0.55
Sharpness coefficient: 0.40
Hull speed coefficient 'M' = 6.95
'Natural speed' for length = 20.8 knots
Power going to wave formation
at top speed: 36 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 53 percent

Relative accommodation and working space: 290 percent


Displacement factor: 226 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.07
(Structure weight per square
metre of hull surface: 483 kg)

Relative longitudinal hull strength: 4.16
(for 9.00 m average freeboard;
freeboard adjustment +4.71 m)

Relative composite hull strength: 1.22

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


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

432.30 x 67.24 x 15.09; 29.52 -- Dimensions
0.55 -- Block coefficient
1922 -- Year laid down
16.75 / 11000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
2600 tons -- Miscellaneous weights
++++++++++
1 x 0.28; 0 -- Main battery; turrets
Central positioning of guns
:
0 -- No secondary battery
0 -- No tertiary (QF/AA) battery
0 -- No fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
0.00 -- No battery armor


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


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

[size=3]Miscellaneous Harbour Defence Craft[/size]

In 1932, several vessels were requisitioned for refit into service as harbour defence craft. Minimal details are provided as follows:

Boom Carrier Orissa, former freighter, 4802 t standard, 11 knots

Mobile Gate Vessels HDC #1 and HDC #3, former fishing trawlers, 792 t standard, 13 knots

Mooring Vessel HDC #4, former tug, 852 t, 12 knots

Netlayer HDC #5, former fishing trawler, 1272 t standard, 13 knots

Armament on each vessel is likely not more than a few 15 mm machine guns.

[size=3]Minicoy Class Oiler[/size]

After having a candid look at its three oilers, Bharat reckoned it was time to get some newer, better, larger replacements.

Two civilian-operated Minicoy-class oilers were refitted into service in 1942.

Minicoy, AO-4, laid down 1935, refitted to service 1942
Great Andaman, AO-5, laid down 1935, refitted to service 1942

Minicoy, Bharati oiler laid down 1935 (refitted to service 1942)

Displacement:
5,224 t light; 5,594 t standard; 17,163 t normal; 26,418 t full load

Dimensions: Length overall / water x beam x draught
470.28 ft / 459.32 ft x 88.58 ft x 24.61 ft (normal load)
143.34 m / 140.00 m x 27.00 m x 7.50 m

Armament:
2 - 4.92" / 125 mm guns in single mounts, 59.59lbs / 27.03kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread
8 - 1.38" / 35.0 mm guns (4x2 guns), 1.31lbs / 0.59kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, all amidships
8 - 0.59" / 15.0 mm guns (2x4 guns), 0.10lbs / 0.05kg shells, 1935 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 130 lbs / 59 kg
Shells per gun, main battery: 350

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 13,405 shp / 10,000 Kw = 17.42 kts
Actual Range 10,000 nm @ 15.00 kts (Bunkerage = 3,031 t)
Simmed Range 68,700nm at 15.00 kts (Bunkerage = 20,823 tons)

Complement:
749 - 974

Cost:
£1.272 million / $5.088 million

Distribution of weights at normal displacement:
Armament: 16 tons, 0.1 %
Machinery: 381 tons, 2.2 %
Hull, fittings & equipment: 3,809 tons, 22.2 %
Fuel, ammunition & stores: 11,939 tons, 69.6 %
Miscellaneous weights: 1,018 tons, 5.9 %
-500 t: Stores
-400 t: UNREP and loading/unloading gear
-60 t: Accomodation for thirty passengers
-40 t: Weight reserve
+16,000 t: Bunker fuel (simmed as part of bunkerage)
+1,792 t: Avgas (simmed as part of bunkerage)


Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
141,664 lbs / 64,258 Kg = 2,377.2 x 4.9 " / 125 mm shells or 19.6 torpedoes
Stability (Unstable if below 1.00): 2.32
Metacentric height 15.1 ft / 4.6 m
Roll period: 9.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, rise aft of midbreak, low quarterdeck
Block coefficient: 0.600
Length to Beam Ratio: 5.19 : 1
'Natural speed' for length: 21.43 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 35
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: 24.93 ft / 7.60 m
- Forecastle (20 %): 21.00 ft / 6.40 m (13.12 ft / 4.00 m aft of break)
- Mid (60 %): 13.12 ft / 4.00 m (21.00 ft / 6.40 m aft of break)
- Quarterdeck (20 %): 13.12 ft / 4.00 m (21.00 ft / 6.40 m before break)
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 16.59 ft / 5.06 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 16.3 %
- Above water (accommodation/working, high = better): 119.2 %
Waterplane Area: 29,758 Square feet or 2,765 Square metres
Displacement factor (Displacement / loading): 899 %
Structure weight / hull surface area: 96 lbs/sq ft or 470 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.52
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[size=3]Rajendra Class Harbour Tug[/size]

The BNS decided, in 1941, that it was better to have a dedicated fleet of harbour tugs than to contract out to private operators, as had previously been the case.

Rajendra, ATH-1, laid down 1942
Dilip, ATH-2, laid down 1942
Pramod, ATH-3, laid down 1942
Beant, ATH-4, laid down 1942
Adoor, ATH-5, laid down 1942
Chandraji, ATH-6, laid down 1942
Lakshmikant, ATH-7, laid down 1942
Madan, ATH-8, laid down 1942
Oommen, ATH-9, laid down 1943
Arackaparambil, ATH-10, laid down 1943
Kumar, ATH-11, laid down 1943
Inzamam, ATH-12, laid down 1943

Enter ship name, Enter country Enter ship type laid down 1942

Displacement:
413 t light; 424 t standard; 462 t normal; 493 t full load

Dimensions: Length overall / water x beam x draught
162.73 ft / 162.73 ft x 26.25 ft x 6.89 ft (normal load)
49.60 m / 49.60 m x 8.00 m x 2.10 m

Armament:
2 - 1.38" / 35.0 mm guns (1x2 guns), 1.31lbs / 0.59kg shells, 1942 Model
Dual purpose guns in deck mount
on centreline aft, all raised guns - superfiring
2 - 0.59" / 15.0 mm guns in single mounts, 0.10lbs / 0.05kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, all forward
Weight of broadside 3 lbs / 1 kg
Shells per gun, main battery: 1,000

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 900 shp / 672 Kw = 14.24 kts
Range 5,000nm at 10.00 kts (Bunkerage = 69 tons)

Complement:
49 - 64

Cost:
£0.115 million / $0.459 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.1 %
Armour: 1 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 24 tons, 5.1 %
Hull, fittings & equipment: 288 tons, 62.3 %
Fuel, ammunition & stores: 49 tons, 10.7 %
Miscellaneous weights: 100 tons, 21.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,515 lbs / 687 Kg = 1,157.9 x 1.4 " / 35 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 0.8 ft / 0.3 m
Roll period: 12.1 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.69

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 6.20 : 1
'Natural speed' for length: 12.76 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 30
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: -1.64 ft / -0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 15.75 ft / 4.80 m
- Forecastle (20 %): 11.81 ft / 3.60 m
- Mid (50 %): 7.87 ft / 2.40 m
- Quarterdeck (15 %): 7.87 ft / 2.40 m
- Stern: 7.87 ft / 2.40 m
- Average freeboard: 9.57 ft / 2.92 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 42.3 %
- Above water (accommodation/working, high = better): 101.8 %
Waterplane Area: 2,981 Square feet or 277 Square metres
Displacement factor (Displacement / loading): 307 %
Structure weight / hull surface area: 61 lbs/sq ft or 296 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.75
- Longitudinal: 6.02
- Overall: 1.98
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[size=3]Shadi Class Boom Defence Ship/Netlayer[/size]

Dedicated net-layer/boomships were identified as another deficiency in the BNS auxiliary force during the review of late 1941.

Shadi, ABD-1, laid down 1942
Mumtaz, ABD-2, laid down 1942
Indira, ABD-3, laid down 1942
Aamna, ABD-4, laid down 1942
Maheshwari, ABD-5, laid down 1942
Gourikutty, ABD-6, laid down 1942
Hema, ABD-7, laid down 1942
Esha, ABD-8, laid down 1942

Enter ship name, Enter country Enter ship type laid down 1942

Displacement:
545 t light; 560 t standard; 618 t normal; 664 t full load

Dimensions: Length overall / water x beam x draught
184.11 ft / 173.88 ft x 28.71 ft x 7.87 ft (normal load)
56.12 m / 53.00 m x 8.75 m x 2.40 m

Armament:
1 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1942 Model
Dual purpose gun in deck mount
on centreline aft, 1 raised gun
2 - 1.38" / 35.0 mm guns in single mounts, 1.31lbs / 0.59kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, all forward
2 - 0.59" / 15.0 mm guns in single mounts, 0.10lbs / 0.05kg shells, 1942 Model
Breech loading guns in deck mounts
on side, all aft
Weight of broadside 38 lbs / 17 kg
Shells per gun, main battery: 150

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm -
2nd: 0.79" / 20 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, complex reciprocating steam engines,
Geared drive, 2 shafts, 1,627 ihp / 1,214 Kw = 15.88 kts
Range 5,000nm at 10.00 kts (Bunkerage = 103 tons)

Complement:
61 - 80

Cost:
£0.226 million / $0.905 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0.8 %
Armour: 3 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 89 tons, 14.4 %
Hull, fittings & equipment: 298 tons, 48.2 %
Fuel, ammunition & stores: 73 tons, 11.8 %
Miscellaneous weights: 150 tons, 24.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,000 lbs / 454 Kg = 28.3 x 4.1 " / 105 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 1.0 ft / 0.3 m
Roll period: 12.2 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 1.29

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.550
Length to Beam Ratio: 6.06 : 1
'Natural speed' for length: 13.19 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 39
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 17.72 ft / 5.40 m
- Forecastle (20 %): 9.84 ft / 3.00 m (8.86 ft / 2.70 m aft of break)
- Mid (50 %): 8.86 ft / 2.70 m
- Quarterdeck (15 %): 8.86 ft / 2.70 m
- Stern: 8.86 ft / 2.70 m
- Average freeboard: 9.69 ft / 2.95 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 79.8 %
- Above water (accommodation/working, high = better): 96.4 %
Waterplane Area: 3,484 Square feet or 324 Square metres
Displacement factor (Displacement / loading): 167 %
Structure weight / hull surface area: 56 lbs/sq ft or 272 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.43
- Longitudinal: 4.19
- Overall: 1.59
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily

[size=3]Pelikana Class Salvage Ship[/size]

Pelikana has been laid down as a salvage and demolition ship; a second unit will follow, with specialization towards submarine rescue.

Pelikana, ATS-1, laid down 1942
Jalakaga, ATS-2, laid down 1943

Enter ship name, Enter country Enter ship type laid down 1942

Displacement:
1,042 t light; 1,067 t standard; 1,190 t normal; 1,289 t full load

Dimensions: Length overall / water x beam x draught
216.73 ft / 213.25 ft x 36.09 ft x 9.84 ft (normal load)
66.06 m / 65.00 m x 11.00 m x 3.00 m

Armament:
2 - 1.38" / 35.0 mm guns in single mounts, 1.31lbs / 0.59kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread
Weight of broadside 3 lbs / 1 kg
Shells per gun, main battery: 1,000

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,800 shp / 1,343 Kw = 15.00 kts
Range 6,000nm at 12.00 kts (Bunkerage = 222 tons)

Complement:
100 - 131

Cost:
£0.276 million / $1.103 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Armour: 1 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 47 tons, 4.0 %
Hull, fittings & equipment: 593 tons, 49.8 %
Fuel, ammunition & stores: 149 tons, 12.5 %
Miscellaneous weights: 400 tons, 33.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,220 lbs / 1,461 Kg = 2,461.4 x 1.4 " / 35 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 1.2 ft / 0.4 m
Roll period: 13.6 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 5.91 : 1
'Natural speed' for length: 14.60 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 30
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 15.75 ft / 4.80 m
- Mid (50 %): 11.81 ft / 3.60 m
- Quarterdeck (20 %): 11.81 ft / 3.60 m
- Stern: 11.81 ft / 3.60 m
- Average freeboard: 13.50 ft / 4.12 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 50.8 %
- Above water (accommodation/working, high = better): 130.9 %
Waterplane Area: 5,371 Square feet or 499 Square metres
Displacement factor (Displacement / loading): 239 %
Structure weight / hull surface area: 68 lbs/sq ft or 330 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.40
- Longitudinal: 5.82
- Overall: 1.61
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[size=3]Diu Class Replenishment Oiler[/size]

Diu, AO-6, laid down 1937, refitted into service 1942
Ramree Island II, AO-7, laid down 1937, refitted into service 1942

Enter ship name, Enter country Enter ship type laid down 1937

Displacement:
8,028 t light; 8,463 t standard; 20,399 t normal; 29,949 t full load

Dimensions: Length overall / water x beam x draught
535.89 ft / 524.93 ft x 88.58 ft x 25.59 ft (normal load)
163.34 m / 160.00 m x 27.00 m x 7.80 m

Armament:
2 - 4.92" / 125 mm guns in single mounts, 59.59lbs / 27.03kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread
8 - 1.38" / 35.0 mm guns (4x2 guns), 1.31lbs / 0.59kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, all amidships
8 - 0.59" / 15.0 mm guns (2x4 guns), 0.10lbs / 0.05kg shells, 1937 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 130 lbs / 59 kg
Shells per gun, main battery: 350

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 16,425 shp / 12,253 Kw = 18.09 kts
Actual Range: 10,000 t @ 15 kts (3,231 t)
Simmed Range 66,500nm at 15.00 kts (Bunkerage = 21,486 tons)

Complement:
853 - 1,109

Cost:
£1.955 million / $7.820 million

Distribution of weights at normal displacement:
Armament: 16 tons, 0.1 %
Machinery: 455 tons, 2.2 %
Hull, fittings & equipment: 4,556 tons, 22.3 %
Fuel, ammunition & stores: 12,372 tons, 60.6 %
Miscellaneous weights: 3,000 tons, 14.7 %
-2,500 t: Dry stores
-400 t: UNREP and loading/unloading gear
-60 t: Accommodation for thirty passengers
-40 t: Weight reserve
+16,165 t: Bunker Fuel (simmed as part of fuel load)
+2,100 t: Avgas (simmed as part of fuel load)

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
91,713 lbs / 41,600 Kg = 1,539.0 x 4.9 " / 125 mm shells or 11.7 torpedoes
Stability (Unstable if below 1.00): 1.74
Metacentric height 10.3 ft / 3.1 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.82

Hull form characteristics:
Hull has raised forecastle, rise aft of midbreak, low quarterdeck
Block coefficient: 0.600
Length to Beam Ratio: 5.93 : 1
'Natural speed' for length: 22.91 kts
Power going to wave formation at top speed: 39 %
Trim (Max stability = 0, Max steadiness = 100): 39
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: 24.93 ft / 7.60 m
- Forecastle (20 %): 21.00 ft / 6.40 m (13.12 ft / 4.00 m aft of break)
- Mid (60 %): 13.12 ft / 4.00 m (21.00 ft / 6.40 m aft of break)
- Quarterdeck (20 %): 13.12 ft / 4.00 m (21.00 ft / 6.40 m before break)
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 16.59 ft / 5.06 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 25.6 %
- Above water (accommodation/working, high = better): 119.6 %
Waterplane Area: 34,009 Square feet or 3,160 Square metres
Displacement factor (Displacement / loading): 505 %
Structure weight / hull surface area: 100 lbs/sq ft or 488 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.23
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[size=3]Chattampi Swami Class Disaster Relief Ship[/size]




The BNS has now been authorized to construct two dedicated disaster relief ships that will serve as "first responders" during cyclone season, and as required during the remainder of the year. The Chattampi Swami can be described as half hospital ship, half landing ship. Her main features are:

-Hospital facilities including a triage area, two operating rooms, and 100 patient beds.

-Dry (food, tents, blankets, etc) and wet cargo (drinking water), for distribution to survivors, along with a modest water purification system.

-A vehicle hold for ambulances to collect patients and trucks to deliver aid.

-A well deck for landing craft capable of handling cargo and personnel transfers to and from shore in situations where local docks are unserviceable.

It remains to be seen whether the type proves to be effective in service; should this be the case, the BNS foresees some utility in eventually operating up to four ship vessels

Chattampi Swami, ADR-1, laid down 1942
Abdullah Shah, ADR-2, laid down 1942

Chattampi Swami, disaster relief ship laid down 1942

Displacement:
3,476 t light; 3,570 t standard; 4,704 t normal; 5,611 t full load

Dimensions: Length overall / water x beam x draught
397.87 ft / 393.70 ft x 68.90 ft x 12.14 ft (normal load)
121.27 m / 120.00 m x 21.00 m x 3.70 m

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 6,702 shp / 5,000 Kw = 18.38 kts
Range 10,000 nm at 15.00 kts (bunkerage = 1,253 tons)
Simmed as : Range 16,500nm at 15.00 kts (Bunkerage = 2,040 tons)

Complement:
283 - 369

Cost:
£0.930 million / $3.721 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 175 tons, 3.7 %
Hull, fittings & equipment: 1,794 tons, 38.1 %
Fuel, ammunition & stores: 1,228 tons, 26.1 %
Miscellaneous weights: 1,507 tons, 32.0 %
-525 t: Accommodation for 150 First-responders @ 3.5 t per
-350 t: 100 Patient Beds @ 3.5 t per
-200 t: 2 x Operating rooms + triage center
-300 t: Dry cargo
-60 t: Vehicle deck and 10 x 3 t trucks/ambulances
-32 t: 4 x LCVP @ 8 t per
-20 t: Water purification system
-20 t: Weight reserve

-450 t: 15 x 15 x 2 metre well deck (simmed as bunkerage)
-310 t: Fresh water (simmed as bunkerage)
-27 t: Gasoline (simmed as bunkerage)

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,388 lbs / 8,341 Kg = 170.3 x 6 " / 152 mm shells or 3.7 torpedoes
Stability (Unstable if below 1.00): 1.35
Metacentric height 4.9 ft / 1.5 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.93

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 5.71 : 1
'Natural speed' for length: 23.80 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 37
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.62 ft / 7.20 m
- Forecastle (20 %): 19.69 ft / 6.00 m
- Mid (50 %): 19.69 ft / 6.00 m
- Quarterdeck (20 %): 11.81 ft / 3.60 m (19.69 ft / 6.00 m before break)
- Stern: 11.81 ft / 3.60 m
- Average freeboard: 18.43 ft / 5.62 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 48.1 %
- Above water (accommodation/working, high = better): 249.0 %
Waterplane Area: 18,794 Square feet or 1,746 Square metres
Displacement factor (Displacement / loading): 253 %
Structure weight / hull surface area: 73 lbs/sq ft or 357 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 1.95
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, rides out heavy weather easily

[size=3]Sahara Class Repair Ship[/size]

A replacement for the thirty year old Otta

Sahara, ARP-2, laid down 1935, refitted to service 1942

Sahara, Repair Ship, laid down 1935 (refitted into service 1942)

Displacement:
7,743 t light; 7,984 t standard; 10,710 t normal; 12,891 t full load

Dimensions: Length overall / water x beam x draught
477.42 ft / 465.88 ft x 75.46 ft x 16.40 ft (normal load)
145.52 m / 142.00 m x 23.00 m x 5.00 m

Armament:
2 - 4.92" / 125 mm guns in single mounts, 59.59lbs / 27.03kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts
8 - 2.24" / 57.0 mm guns (4x2 guns), 5.65lbs / 2.56kg shells, 1935 Model
Anti-aircraft guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
16 - 0.59" / 15.0 mm guns (4x4 guns), 0.10lbs / 0.05kg shells, 1935 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 166 lbs / 75 kg
Shells per gun, main battery: 250

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
2nd: 0.79" / 20 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 6,703 shp / 5,000 Kw = 15.44 kts
Range 10,000nm at 12 knots (Bunkerage = 1,402 t)
Actual simmed range 35,000nm at 12.00 kts (Bunkerage = 4,907 tons)

Complement:
526 - 684

Cost:
£1.604 million / $6.417 million

Distribution of weights at normal displacement:
Armament: 21 tons, 0.2 %
Armour: 16 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 16 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 190 tons, 1.8 %
Hull, fittings & equipment: 3,182 tons, 29.7 %
Fuel, ammunition & stores: 2,966 tons, 27.7 %
Miscellaneous weights: 4,335 tons, 40.5 %
-3,502 t: Low-slung cargo and parts/spares warehouse (simmed as bunkerage)
-2,400 t: Workshops and fabrication plants
-950 t: Cranes: 1 x 500 t, 1 x 250 t, 4 x 50 t capacity
-600 t: Accommodation for 300 displaced crew
-200 t: Workspace for displaced crew
-135 t: Weight reserve
-100 t: Medical facilities

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
28,343 lbs / 12,856 Kg = 475.6 x 4.9 " / 125 mm shells or 4.0 torpedoes
Stability (Unstable if below 1.00): 1.24
Metacentric height 4.8 ft / 1.5 m
Roll period: 14.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, rise aft of midbreak, low quarterdeck
Block coefficient: 0.650
Length to Beam Ratio: 6.17 : 1
'Natural speed' for length: 21.58 kts
Power going to wave formation at top speed: 33 %
Trim (Max stability = 0, Max steadiness = 100): 35
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: 28.22 ft / 8.60 m
- Forecastle (25 %): 24.28 ft / 7.40 m (16.40 ft / 5.00 m aft of break)
- Mid (50 %): 16.40 ft / 5.00 m (24.28 ft / 7.40 m aft of break)
- Quarterdeck (15 %): 16.40 ft / 5.00 m (24.28 ft / 7.40 m before break)
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 21.52 ft / 6.56 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 52.4 %
- Above water (accommodation/working, high = better): 204.8 %
Waterplane Area: 26,931 Square feet or 2,502 Square metres
Displacement factor (Displacement / loading): 219 %
Structure weight / hull surface area: 86 lbs/sq ft or 420 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.66
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[size=14pt]Type 1944 River Hospital Boat[/size]

People don't just die from drowning during a major flood event. They can be seriously injured by debris in fast-moving waters, can get sick if forced to drink the flood waters, and could be bitten by snakes seeking refuge in the same dry places as the victim.

In such situations, prompt medical attention is necessary to ensure survival - yet the options on previous occasions was either early first aid on a small craft or proper medical attention several hours to days later at a distant, dry army field hospital or one of the few ships with medical facilities anchored offshore. Too often, the former was insufficient and the latter too much delayed.

This new class of hospital riverboat is intended to provide forward medical attention right in the middle of affected areas. In non-emergency situations, they might be employed to provide more routine medical services to particularly isolated communities along Bharat's major rivers.

A production run of twelve is envisioned. Likely deployments are: Indus (2), Krishna (1), Godavari (1), Mahanadi (1), Ganges/Brahmaputra (4), Irrawaddy (2), plus one additional unit, likely on Godavari, to function as a reserve for the Krishna/Godavari/Mahanadi rivers.

RH-1 to -3, laid down 1944
RH-4 to -7, laid down 1945
RH-8 to -11, laid down 1946

River Hospital Boat, Enter country Enter ship type laid down 1944

Displacement:
196 t light; 200 t standard; 206 t normal; 211 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(150.19 ft / 147.64 ft) x 26.25 ft x (2.95 / 3.01 ft)
(45.78 m / 45.00 m) x 8.00 m x (0.90 / 0.92 m)

Machinery:
Diesel Internal combustion generators,
Electric motors, 2 shafts, 201 shp / 150 Kw = 10.40 kts
Range 1,000nm at 10.00 kts
Bunker at max displacement = 11 tons

Complement:
26 - 35

Cost:
£0.051 million / $0.204 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 5 tons, 2.5 %
Hull, fittings & equipment: 85 tons, 41.5 %
Fuel, ammunition & stores: 10 tons, 5.0 %
Miscellaneous weights: 105 tons, 51.0 %
- Hull above water: 105 tons
-40 t: Accommodation for 20 medical and security personnel as required.
-50 t: Medical facilities (1 operating table, small emergency/triage area, pharmacy)
-15 t: Weight reserve / deck cargo

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
646 lbs / 293 Kg = 6.0 x 6 " / 152 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.55
Metacentric height 1.4 ft / 0.4 m
Roll period: 9.3 seconds
Steadiness - As gun platform (Average = 50 %): 59 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.14

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.630 / 0.632
Length to Beam Ratio: 5.63 : 1
'Natural speed' for length: 12.15 kts
Power going to wave formation at top speed: 35 %
Trim (Max stability = 0, Max steadiness = 100): 52
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 9.51 ft / 2.90 m, 5.58 ft / 1.70 m
- Forward deck: 30.00 %, 5.58 ft / 1.70 m, 5.58 ft / 1.70 m
- Aft deck: 35.00 %, 5.58 ft / 1.70 m, 5.58 ft / 1.70 m
- Quarter deck: 15.00 %, 5.58 ft / 1.70 m, 5.58 ft / 1.70 m
- Average freeboard: 5.89 ft / 1.80 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 64.3 %
- Above water (accommodation/working, high = better): 119.1 %
Waterplane Area: 2,914 Square feet or 271 Square metres
Displacement factor (Displacement / loading): 179 %
Structure weight / hull surface area: 24 lbs/sq ft or 119 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.27
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Adequate accommodation and workspace room

Luharakhana Class Repair Ship

(OOC: This repair ship was budgeted for in the 1934 sim report but got lost in the shuffle and only just found ten sim-years later.)

Luharakhana ("Forge"), Bharati repair ship, laid down 1929, refitted to service 1934

Displacement:
4,959 t light; 5,092 t standard; 6,306 t normal; 7,277 t full load

Dimensions: Length overall / water x beam x draught
413.87 ft / 406.82 ft x 68.90 ft x 13.12 ft (normal load)
126.15 m / 124.00 m x 21.00 m x 4.00 m

Armament:
1 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1929 Model
Dual purpose gun in deck mount
on centreline aft, 1 raised gun
4 - 1.38" / 35.0 mm guns (2x2 guns), 1.31lbs / 0.59kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 0.59" / 15.0 mm guns (2x4 guns), 0.10lbs / 0.05kg shells, 1929 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1929 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 41 lbs / 19 kg
Shells per gun, main battery: 250

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm - -
2nd: 0.79" / 20 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -
4th: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 2,728 shp / 2,035 Kw = 13.00 kts
Range 10,000nm at 10.00 kts
Bunker at max displacement = 728 t
[simmed as: Range 30,000nm at 10.00 kts
Bunker at max displacement = 2,185 tons]

Complement:
353 - 459

Cost:
£0.759 million / $3.034 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0.1 %
Armour: 4 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 4 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 84 tons, 1.3 %
Hull, fittings & equipment: 2,091 tons, 33.2 %
Fuel, ammunition & stores: 1,347 tons, 21.4 %
Miscellaneous weights: 2,775 tons, 44.0 % + 1,457 t simmed as bunkerage = 4,232 t
-1,500 t: Workshops and fabrication plants
-1,457 t: Low-slung cargo and parts/spares warehouse (simmed as bunkerage)
-700 t: Cranes: 1 x 400 t, 1 x 200 t, 2 x 50 t
-500 t: Accommodation for 250 displaced personnel
-50 t: Medical facilities
-25 t: Weight reserve


Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,502 lbs / 8,392 Kg = 523.8 x 4.1 " / 105 mm shells or 3.3 torpedoes
Stability (Unstable if below 1.00): 1.23
Metacentric height 4.2 ft / 1.3 m
Roll period: 14.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has low forecastle, rise forward of midbreak, raised quarterdeck
Block coefficient: 0.600
Length to Beam Ratio: 5.90 : 1
'Natural speed' for length: 20.17 kts
Power going to wave formation at top speed: 27 %
Trim (Max stability = 0, Max steadiness = 100): 35
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: 21.33 ft / 6.50 m
- Forecastle (20 %): 16.40 ft / 5.00 m (24.28 ft / 7.40 m aft of break)
- Mid (50 %): 24.28 ft / 7.40 m (16.40 ft / 5.00 m aft of break)
- Quarterdeck (15 %): 24.28 ft / 7.40 m (16.40 ft / 5.00 m before break)
- Stern: 24.28 ft / 7.40 m
- Average freeboard: 20.34 ft / 6.20 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 53.9 %
- Above water (accommodation/working, high = better): 221.7 %
Waterplane Area: 20,500 Square feet or 1,905 Square metres
Displacement factor (Displacement / loading): 211 %
Structure weight / hull surface area: 74 lbs/sq ft or 363 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.91
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Kalpeni Class Replenishment Oiler

WIth a decision having been made to discard of the Gaudhi Sagar class seaplane carriers, the BNS identified a need for small but modern replenishment oilers capable of supporting escort groups. Two Kalpeni class have been laid down, and additional units are being contemplated.

Apart carrying fuel and stores, the type also has a full sick bay and limited passenger facilities.

Kalpeni, laid down 1944
Gollapalem, laid down 1944

Enter ship name, Enter country Enter ship type laid down 1944

Displacement:
3,973 t light; 4,146 t standard; 8,075 t normal; 11,218 t full load

Dimensions: Length overall / water x beam x draught
437.58 ft / 426.51 ft x 59.06 ft x 18.70 ft (normal load)
133.38 m / 130.00 m x 18.00 m x 5.70 m

Armament:
1 - 4.92" / 125 mm guns in single mounts, 59.59lbs / 27.03kg shells, 1944 Model
Dual purpose gun in a deck mount with hoist
on centreline aft, 1 raised gun
2 - 2.24" / 57.0 mm guns (1x2 guns), 5.65lbs / 2.56kg shells, 1944 Model
Dual purpose guns in deck mount
on centreline amidships, all raised guns - superfiring
8 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1944 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 75 lbs / 34 kg
Shells per gun, main battery: 250

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
2nd: 0.79" / 20 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 13,404 shp / 10,000 Kw = 19.74 kts
Range 40,000nm at 15.00 kts
Bunker at max displacement = 7,072 tons

Complement:
425 - 553

Cost:
£1.311 million / $5.242 million

Distribution of weights at normal displacement:
Armament: 9 tons, 0.1 %
Armour: 7 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 7 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 342 tons, 4.2 %
Hull, fittings & equipment: 2,108 tons, 26.1 %
Fuel, ammunition & stores: 4,102 tons, 50.8 %
Miscellaneous weights: 1,506 tons, 18.7 %
-1,150 t: Dry stores and cargo
-200 t: UNREP gear
-100 t: 1 x 50 t crane and 2 x 25 t cranes
-25 t: Medical facilities
-20 t: Accommodation for 10 passengers
-11 t: Weight reserve

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
29,150 lbs / 13,222 Kg = 489.2 x 4.9 " / 125 mm shells or 4.9 torpedoes
Stability (Unstable if below 1.00): 1.50
Metacentric height 4.5 ft / 1.4 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, rise aft of midbreak, low quarterdeck
Block coefficient: 0.600
Length to Beam Ratio: 7.22 : 1
'Natural speed' for length: 20.65 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 25
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 %): 22.64 ft / 6.90 m (14.76 ft / 4.50 m aft of break)
- Mid (60 %): 14.76 ft / 4.50 m (22.64 ft / 6.90 m aft of break)
- Quarterdeck (15 %): 14.76 ft / 4.50 m (22.64 ft / 6.90 m before break)
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 18.54 ft / 5.65 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 36.4 %
- Above water (accommodation/working, high = better): 146.9 %
Waterplane Area: 18,422 Square feet or 1,711 Square metres
Displacement factor (Displacement / loading): 355 %
Structure weight / hull surface area: 75 lbs/sq ft or 366 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.69
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather