WesWorld

Order of Posts:

-Ashoka class pre-dreadnought (0 units) - 1891-2/1929

-Dara Shikoh class (0 units) - 1905

-Babur class (0 units) - 1909/1931

-Akbar class (2 units) - 1924/1936-38

-Shah Jahan class (1 unit) - 1929

-Samanjir class (1 unit) - 1940

[SIZE=3]Ashoka Class Pre-Dreadnought Battleship[/SIZE]

Ashoka, B-1, laid down 1891; training ship, 1910; converted to memorial 1929-30
Chandragupta, B-2, laid down 1892, destroyed by internal explosion 1909

Length, 113.9 m x Beam, 19.5 m x Depth, 7.9 m
10790 tonnes normal displacement (10063 tonnes standard)

Main battery: 6 x 28.0-cm (3 x 2)
Secondary battery: 8 x 10.5-cm
QF battery: 8 x 8.8-cm

Weight of broadside: 2028 kg

6 TT, 45.0 cm (submerged)

Main belt, 40.0 cm; bow and stern, 10.0 cm
Upper belt, 10.0 cm
Armor deck, average 6.0 cm
Conning tower, 30.0 cm

Battery armor:
Main, 12.0 cm / secondary, 10.0 cm
QF, 10.0 cm

Maximum speed for 5999 indicated kw = 16.26 knots
Approximate cruising radius, 4300 nm / 10 knots

Typical complement: 529-688


Estimated cost, $4.019 million (£1.005 million)

Remarks:

Relative extent of belt armor, 93 percent of 'typical' coverage.

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

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


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 558 tonnes = 5 pct
Armor, total ..................... 3500 tonnes = 32 pct

Belt 1978 tonnes = 18 pct
Deck 749 tonnes = 7 pct
C.T. 124 tonnes = 1 pct
Armament 649 tonnes = 6 pct

Machinery ........................ 1461 tonnes = 14 pct
Hull and fittings; equipment ..... 3906 tonnes = 36 pct
Fuel, ammunition, stores ......... 1315 tonnes = 12 pct
Miscellaneous weights ............ 50 tonnes = 0 pct
-----
10790 tonnes = 100 pct

Estimated metacentric height, 0.9 m

Displacement summary:

Light ship: 9475 tonnes
Standard displacement: 10063 tonnes
Normal service: 10790 tonnes
Full load: 11329 tonnes

Loading submergence 1608 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.05

Shellfire needed to sink: 4591 kg = 15.1 x 28.0-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, 85 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.94

Relative quality as a seaboat: 1.69

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


Hull form characteristics:

Block coefficient: 0.61
Sharpness coefficient: 0.44
Hull speed coefficient 'M' = 5.17
'Natural speed' for length = 19.3 knots
Power going to wave formation
at top speed: 44 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 93 percent

Relative accommodation and working space: 95 percent


Displacement factor: 99 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.99
(Structure weight per square
metre of hull surface: 718 kg)

Relative longitudinal hull strength: 2.73
(for 4.70 m average freeboard;
freeboard adjustment +0.01 m)

Relative composite hull strength: 1.09

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


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

373.59 x 63.96 x 25.91; 15.42 -- Dimensions
0.61 -- Block coefficient
1891 -- Year laid down
16.26 / 4300 / 10.00; Reciprocating -- Speed / radius / cruise
50 tons -- Miscellaneous weights
++++++++++
6 x 11.02; 3; 0 -- Main battery; turrets; superfiring
:
8 x 4.13; 0 -- Secondary battery; turrets
:
8 x 3.46 -- Tertiary (QF/AA) battery
:
0 -- No fourth (light) battery
6 / 6 / 17.72 -- TT / submerged / size
++++++++++
15.75 / 3.94 / 3.94 / 0.00; 93 -- Belt armor; relative extent
2.36 / 11.81 -- Deck / CT
4.72 / 3.94 / 3.94 / 0.00 -- Battery armor


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


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

Service Notes:

-Chandragupta destroyed by internal explosion 1909

-Ashoka deleted to training role, 1910; converted to training ship through removal of one twin 28 cm mount, some smaller weapons, and conning tower and belt armor in 1919. See "Auxiliaries" thread for details.

[SIZE=3]Dara Shikoh Class Battleship[/SIZE]


Source: Hooman

Dara Shikoh, B-3, laid down 1905 (ex-RSAN Queen Fallatia, to India 1920), scrapped 1927

Length, 152.0 m x Beam, 24.0 m x Depth, 8.5 m
18758 tonnes normal displacement (17389 tonnes standard)

Main battery: 8 x 28.0-cm (4 x 2; 2 superfiring)
Secondary battery: 16 x 15.0-cm
QF battery: 10 x 8.8-cm
AA battery: 6 x 8.8-cm

Weight of broadside: 3279 kg

Main belt, 30.0 cm; bow and stern, 15.0 cm
Upper belt, 17.0 cm
Torpedo bulkhead, 3.5 cm
Armor deck, average 4.0 cm
Conning tower, 30.0 cm

Battery armor:
Main, 27.0 cm / secondary, 15.0 cm


Maximum speed for 21018 shaft kw = 21.15 knots
Approximate cruising radius, 5900 nm / 10 knots

Typical complement: 801-1042


Estimated cost, $6.642 million (£1.661 million)

Remarks:

Relative extent of belt armor, 105 percent of 'typical' coverage.

Good seaboat; rides out heavy weather easily.

Main deck secondary guns subject to being washed down
in a seaway.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 902 tonnes = 5 pct
Armor, total ..................... 6631 tonnes = 35 pct

Belt 3067 tonnes = 16 pct
Torpedo bulkhead 461 tonnes = 2 pct
Deck 812 tonnes = 4 pct
C.T. 180 tonnes = 1 pct
Armament 2111 tonnes = 11 pct

Machinery ........................ 2347 tonnes = 13 pct
Hull and fittings; equipment ..... 6534 tonnes = 35 pct
Fuel, ammunition, stores ......... 2345 tonnes = 13 pct
Miscellaneous weights ............ 0 tonnes = 0 pct
-----
18758 tonnes = 100 pct

Estimated metacentric height, 1.1 m

Displacement summary:

Light ship: 16413 tonnes
Standard displacement: 17389 tonnes
Normal service: 18758 tonnes
Full load: 19777 tonnes

Loading submergence 2612 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.02

Shellfire needed to sink: 6760 kg = 22.2 x 28.0-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 2.3
(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, 0.64

Relative quality as a seaboat: 1.21

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


Hull form characteristics:

Block coefficient: 0.60
Sharpness coefficient: 0.42
Hull speed coefficient 'M' = 5.74
'Natural speed' for length = 22.3 knots
Power going to wave formation
at top speed: 49 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 105 percent

Relative accommodation and working space: 114 percent


Displacement factor: 102 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.00
(Structure weight per square
metre of hull surface: 778 kg)

Relative longitudinal hull strength: 1.66
(for 5.24 m average freeboard)

Relative composite hull strength: 1.05

[SIZE=3]Babur Class Battleship[/SIZE]


Source: Hooman

Babur, B-4, laid down 1909 (ex-RSAN Uruguay, to India 1920), to Peru 1931

Length, 162.0 m x Beam, 25.5 m x Depth, 8.5 m
21241 tonnes normal displacement (19747 tonnes standard)

Main battery: 8 x 30.5-cm (4 x 2; 2 superfiring)
Secondary battery: 16 x 15.0-cm
QF battery: 12 x 8.8-cm
AA battery: 6 x 8.8-cm

Weight of broadside: 4013 kg

Main belt, 32.0 cm; bow and stern, 15.0 cm
(Relative extent of belt armor, 90 percent of 'typical' coverage)
Upper belt, 20.0 cm
Torpedo bulkhead, 3.5 cm
Armor deck, average 4.0 cm
(Allocation: Over engines and magazins - 5.0 cm; ends - 2.5 cm)
Conning tower, 30.0 cm

Battery armor:
Main, 30.0 cm
(Allocation: Front - 30.0 cm; Sides - 28.0 cm; Back - 25.0 cm)
Secondary, 17.0 cm casemats
QF battery, 5.0 cm casemats

Maximum speed for 23728 shaft kw = 21.50 knots
Approximate cruising radius, 7000 nm / 10 knots

Typical complement: 880-1144

Estimated cost, $7.300 million (£1.825 million)

Remarks:

Good seaboat; rides out heavy weather easily.

Main deck secondary guns subject to being washed down
in a seaway.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 1104 tonnes = 5 pct
Armor, total ..................... 7306 tonnes = 34 pct

Belt 3109 tonnes = 15 pct
Torpedo bulkhead 492 tonnes = 2 pct
Deck 917 tonnes = 4 pct
C.T. 196 tonnes = 1 pct
Armament 2594 tonnes = 12 pct

Machinery ........................ 1766 tonnes = 8 pct
Hull and fittings; equipment ..... 8409 tonnes = 40 pct
Fuel, ammunition, stores ......... 2655 tonnes = 13 pct
Miscellaneous weights ............ 0 tonnes = 0 pct
-----
21241 tonnes = 100 pct

Estimated metacentric height, 1.2 m

Displacement summary:

Light ship: 18586 tonnes
Standard displacement: 19747 tonnes
Normal service: 21241 tonnes
Full load: 22352 tonnes

Loading submergence 2958 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.01

Shellfire needed to sink: 9513 kg = 24.2 x 30.5-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 3.3
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 62 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.65

Relative quality as a seaboat: 1.23

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


Hull form characteristics:

Block coefficient: 0.60
Sharpness coefficient: 0.42
Hull speed coefficient 'M' = 5.87
'Natural speed' for length = 23.1 knots
Power going to wave formation
at top speed: 48 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 89 percent

Relative accommodation and working space: 120 percent


Displacement factor: 109 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.09
(Structure weight per square
metre of hull surface: 904 kg)

Relative longitudinal hull strength: 1.73
(for 5.35 m average freeboard;
freeboard adjustment -0.02 m)

Relative composite hull strength: 1.14

[SIZE=3]Akbar Class Battleship[/SIZE]



Emperor Jalal ud Din Akbar, B-5, laid down 1924
Emperor Nur ud Din Jahangir, B-6, laid down 1924

As refitted, 1942

Enter ship name, Enter country Enter ship type laid down 1936

Displacement:
27,946 t light; 29,226 t standard; 31,039 t normal; 32,489 t full load

Dimensions: Length overall / water x beam x draught
709.08 ft / 695.54 ft x 100.07 ft x 28.38 ft (normal load)
216.13 m / 212.00 m x 30.50 m x 8.65 m

Armament:
8 - 13.78" / 350 mm guns (2x4 guns), 1,308.20lbs / 593.39kg shells, 1936 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
8 - 4.92" / 125 mm guns (4x2 guns), 59.59lbs / 27.03kg shells, 1936 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts - 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, all amidships
24 - 2.24" / 57.0 mm guns (12x2 guns), 5.65lbs / 2.56kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
48 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1936 Model
Machine guns in deck mounts
on side, evenly spread, 12 raised mounts
Weight of broadside 11,578 lbs / 5,251 kg
Shells per gun, main battery: 100

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 14.2" / 360 mm 419.95 ft / 128.00 m 12.01 ft / 3.66 m
Ends: Unarmoured
Upper: 1.57" / 40 mm 419.95 ft / 128.00 m 8.01 ft / 2.44 m
Main Belt covers 93 % of normal length

- Torpedo Bulkhead:
1.57" / 40 mm 452.10 ft / 137.80 m 26.21 ft / 7.99 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 15.7" / 400 mm 9.84" / 250 mm 15.7" / 400 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm 1.18" / 30 mm
3rd: 1.18" / 30 mm 0.79" / 20 mm 1.18" / 30 mm
4th: 0.79" / 20 mm 0.39" / 10 mm -
5th: 0.39" / 10 mm - -

- Armour deck: 5.12" / 130 mm, Conning tower: 15.75" / 400 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 116,000 shp / 86,536 Kw = 29.02 kts
Range 7,310nm at 15.00 kts or 12,000 nm at 12.00 kts
Bunker at max displacement = 3,263 tons

Complement:
1,168 - 1,519

Cost:
£13.970 million / $55.879 million

Distribution of weights at normal displacement:
Armament: 1,447 tons, 4.7 %
Armour: 11,003 tons, 35.4 %
- Belts: 3,372 tons, 10.9 %
- Torpedo bulkhead: 691 tons, 2.2 %
- Armament: 2,006 tons, 6.5 %
- Armour Deck: 4,599 tons, 14.8 %
- Conning Tower: 335 tons, 1.1 %
Machinery: 3,255 tons, 10.5 %
Hull, fittings & equipment: 12,003 tons, 38.7 %
Fuel, ammunition & stores: 3,092 tons, 10.0 %
Miscellaneous weights: 239 tons, 0.8 %
-50 t: Flag facilities
-150 t: Electronics and fire control
-39 t: Weight reserve

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
43,080 lbs / 19,541 Kg = 32.9 x 13.8 " / 350 mm shells or 7.0 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 5.8 ft / 1.8 m
Roll period: 17.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.49
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.550
Length to Beam Ratio: 6.95 : 1
'Natural speed' for length: 26.37 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 65
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: 29.04 ft / 8.85 m
- Forecastle (20 %): 22.80 ft / 6.95 m (19.85 ft / 6.05 m aft of break)
- Mid (50 %): 19.85 ft / 6.05 m
- Quarterdeck (15 %): 19.85 ft / 6.05 m
- Stern: 19.85 ft / 6.05 m
- Average freeboard: 20.94 ft / 6.38 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88.0 %
- Above water (accommodation/working, high = better): 157.2 %
Waterplane Area: 48,573 Square feet or 4,513 Square metres
Displacement factor (Displacement / loading): 106 %
Structure weight / hull surface area: 180 lbs/sq ft or 878 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.38
- 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



As refitted,1936/8

A 50% modernization of the Akbar Class staring with Akbar in 1936 and Janangir in 1938.

Displacement:
27,955 t light; 29,225 t standard; 31,039 t normal; 32,490 t full load

Dimensions: Length overall / water x beam x draught
709.08 ft / 695.54 ft x 100.07 ft x 28.38 ft (normal load)
216.13 m / 212.00 m x 30.50 m x 8.65 m

Armament:
8 - 13.78" / 350 mm guns (2x4 guns), 1,308.20lbs / 593.39kg shells, 1924 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
8 - 4.92" / 125 mm guns (4x2 guns), 59.59lbs / 27.03kg shells, 1924 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts - superfiring
8 - 4.92" / 125 mm guns (4x2 guns), 59.59lbs / 27.03kg shells, 1924 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
24 - 1.38" / 35.0 mm guns (12x2 guns), 1.31lbs / 0.59kg shells, 1924 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 8 raised mounts
24 - 0.59" / 15.0 mm guns (6x4 guns), 0.10lbs / 0.05kg shells, 1924 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 11,453 lbs / 5,195 kg
Shells per gun, main battery: 100

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 14.2" / 360 mm 419.95 ft / 128.00 m 12.01 ft / 3.66 m
Ends: Unarmoured
Upper: 1.57" / 40 mm 419.95 ft / 128.00 m 8.01 ft / 2.44 m
Main Belt covers 93 % of normal length

- Torpedo Bulkhead:
1.57" / 40 mm 452.10 ft / 137.80 m 26.21 ft / 7.99 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 15.7" / 400 mm 9.84" / 250 mm 15.7" / 400 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm 1.18" / 30 mm
3rd: 1.18" / 30 mm - -
4th: 0.79" / 20 mm - -
5th: 0.79" / 20 mm - -

- Armour deck: 5.12" / 130 mm, Conning tower: 15.75" / 400 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 116,000 shp / 86,536 Kw = 29.02 kts
Range 12,000nm at 12.00 kts (Bunkerage = 3,265 tons)

Complement:
1,168 - 1,519

Cost:
£8.150 million / $32.599 million

Distribution of weights at normal displacement:
Armament: 1,432 tons, 4.6 %
Armour: 10,988 tons, 35.4 %
- Belts: 3,372 tons, 10.9 %
- Torpedo bulkhead: 691 tons, 2.2 %
- Armament: 1,992 tons, 6.4 %
- Armour Deck: 4,599 tons, 14.8 %
- Conning Tower: 335 tons, 1.1 %
Machinery: 3,255 tons, 10.5 %
Hull, fittings & equipment: 11,984 tons, 38.6 %
Fuel, ammunition & stores: 3,083 tons, 9.9 %
Miscellaneous weights: 297 tons, 1.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
34,527 lbs / 15,661 Kg = 26.4 x 13.8 " / 350 mm shells or 5.1 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 5.8 ft / 1.8 m
Roll period: 17.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.49
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.550
Length to Beam Ratio: 6.95 : 1
'Natural speed' for length: 26.37 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 65
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: 29.04 ft / 8.85 m
- Forecastle (20 %): 22.80 ft / 6.95 m (19.85 ft / 6.05 m aft of break)
- Mid (50 %): 19.85 ft / 6.05 m
- Quarterdeck (15 %): 19.85 ft / 6.05 m
- Stern: 19.85 ft / 6.05 m
- Average freeboard: 20.94 ft / 6.38 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.8 %
- Above water (accommodation/working, high = better): 157.2 %
Waterplane Area: 48,573 Square feet or 4,513 Square metres
Displacement factor (Displacement / loading): 106 %
Structure weight / hull surface area: 180 lbs/sq ft or 876 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.38
- 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

As Built, 1924

Length, 204.0 m x Beam, 30.5 m x Depth, 8.7 m
29962 tonnes normal displacement (28009 tonnes standard)

Main battery: 8 x 35.0-cm (2 x 4)
Secondary battery: 8 x 15.0-cm (4 x 2; 2 superfiring)
AA battery: 8 x 10.5-cm
Light battery: 8 x 3.5-cm

Weight of broadside: 5265 kg

Main belt, 40.0 cm; ends unarmored
Torpedo bulkhead, 2.5 cm
Armor deck, average 10.0 cm
Conning tower, 36.0 cm

Battery armor:
Main, 40.0 cm / secondary, 7.5 cm
AA, 2.5 cm shields / light guns, 2.5 cm shields

Maximum speed for 75013 shaft kw = 28.01 knots
Approximate cruising radius, 12000 nm / 12 knots

Typical complement: 1139-1480


Estimated cost, $32.210 million (£8.053 million)

Remarks:

Relative extent of belt armor, 93 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 ......................... 1448 tonnes = 5 pct
Armor, total ..................... 9779 tonnes = 33 pct

Belt 3283 tonnes = 11 pct
Torpedo bulkhead 451 tonnes = 2 pct
Deck 3264 tonnes = 11 pct
C.T. 296 tonnes = 1 pct
Armament 2485 tonnes = 8 pct

Machinery ........................ 3311 tonnes = 11 pct
Hull and fittings; equipment ..... 11831 tonnes = 39 pct
Fuel, ammunition, stores ......... 3517 tonnes = 12 pct
Miscellaneous weights ............ 75 tonnes = 0 pct
-----
29962 tonnes = 100 pct

Estimated metacentric height, 1.7 m

Displacement summary:

Light ship: 26444 tonnes
Standard displacement: 28009 tonnes
Normal service: 29962 tonnes
Full load: 31404 tonnes

Loading submergence 4200 tonnes/metre

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


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.05

Shellfire needed to sink: 13995 kg = 299.0 x 15.0-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 4.3
(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, 0.52

Relative quality as a seaboat: 1.05

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


Hull form characteristics:

Block coefficient: 0.55
Sharpness coefficient: 0.40
Hull speed coefficient 'M' = 6.59
'Natural speed' for length = 25.9 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: 92 percent

Relative accommodation and working space: 150 percent


Displacement factor: 108 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.98
(Structure weight per square
metre of hull surface: 922 kg)

Relative longitudinal hull strength: 1.41
(for 6.10 m average freeboard;
freeboard adjustment +0.35 m)

Relative composite hull strength: 1.01

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


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

669.00 x 100.00 x 28.50; 20.01 -- Dimensions
0.55 -- Block coefficient
1924 -- Year laid down
28.01 / 12000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
75 tons -- Miscellaneous weights
++++++++++
8 x 5.91; 4; 2 -- Main battery; turrets; superfiring
:
8 x 13.78; 2 -- Secondary battery; turrets
:
8 x 4.13 -- Tertiary (QF/AA) battery
Gun-shields
:
8 x 1.38 -- Fourth (light) battery
0 -- No torpedo armament
++++++++++
15.75 / 0.00 / 0.00 / 0.98; 93 -- Belt armor; relative extent
3.94 / 14.17 -- Deck / CT
2.95 / 15.75 / 0.98 / 0.98 -- Battery armor


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


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

[SIZE=3]Shah Jahan Class Battleship[/SIZE]

Operational experience with the Akbars indicated some places for improvement, and these have for the most part been incorporated into the Shah Jahan:

-A heavier tertiary battery. The number of 10.5 cm guns has doubled, though the additional (“outer”) mounts are low-angle weapons to be used against small warships as well as low-flying aircraft such as torpedo bombers. The inboard 10.5 cm mounts are dedicated anti-aircraft guns. In time, it's expected that both sets of mounts will be replaced by a type capable of engaging either set of targets. The light battery has also been bolstered, with double the 3.5 cm mounts as well as the addition of four quadruple 1.5 cm machine guns.

-The armor protection has been modified, with the belt armor reduced to 34 cm to allow the average deck armor to increase to 11.5 cm (15 cm over the vitals, 3 cm at the ends). The 4 cm decapping plate has been retained by Shah Jahan.

-Range is increased to 14,200 nm @ 12 knots. The ship's dimensions are slightly enlarged to accomodate this, although the standard displacement is almost identical.

-Two aircraft are carried, rather than Akbar’s one, and the facilities are now amidships after some issue with vibrations at the aft catapult/hanger position on Akbar. Shah Jahan’s aircraft are housed in hangers flanking the aft funnel, and are serviced by a cross-deck catapult.

-Finally, some adjustments have been made to the "pagoda", with one of the two primary rangefinders moved to the top. An enclosed Admiral's Bridge has also been placed on the tower.

As projected:


As completed:


Shah Jahan, B-7, laid down 1929, to China 1945

Displacement:
26,378 t light; 27,997 t standard; 30,208 t normal; 31,977 t full load

Dimensions: Length overall / water x beam x draught
691.25 ft / 679.13 ft x 99.74 ft x 28.38 ft (normal load)
210.69 m / 207.00 m x 30.40 m x 8.65 m

Armament:
8 - 13.78" / 350 mm guns (2x4 guns), 1,308.33lbs / 593.45kg shells, 1929 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
8 - 5.91" / 150 mm guns (4x2 guns), 103.21lbs / 46.82kg shells, 1929 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, all raised mounts - superfiring
16 - 4.13" / 105 mm guns (8x2 guns), 35.22lbs / 15.98kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 6 raised mounts
16 - 1.38" / 35.1 mm guns (8x2 guns), 1.31lbs / 0.59kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
16 - 0.59" / 15.0 mm guns (4x4 guns), 0.10lbs / 0.05kg shells, 1929 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 11,878 lbs / 5,388 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 15.0" / 380 mm 398.00 ft / 121.31 m 11.80 ft / 3.60 m
Ends: Unarmoured
Main Belt covers 90 % of normal length

- Torpedo Bulkhead:
1.00" / 25 mm 400.00 ft / 121.92 m 26.00 ft / 7.92 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 15.8" / 400 mm 11.8" / 300 mm 13.8" / 350 mm
2nd: 3.15" / 80 mm 1.38" / 35 mm 3.15" / 80 mm
3rd: 1.00" / 25 mm - -
4th: 0.78" / 20 mm - -

- Armour deck: 4.52" / 115 mm, Conning tower: 14.17" / 360 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 99,195 shp / 74,000 Kw = 27.94 kts
Range 14,200nm at 12.00 kts
Bunker at max displacement = 3,980 tons

Complement:
1,145 - 1,489

Cost:
£10.388 million / $41.552 million

Distribution of weights at normal displacement:
Armament: 1,485 tons, 4.9 %
Armour: 9,876 tons, 32.7 %
- Belts: 3,112 tons, 10.3 %
- Torpedo bulkhead: 385 tons, 1.3 %
- Armament: 2,130 tons, 7.1 %
- Armour Deck: 3,953 tons, 13.1 %
- Conning Tower: 296 tons, 1.0 %
Machinery: 3,047 tons, 10.1 %
Hull, fittings & equipment: 11,871 tons, 39.3 %
Fuel, ammunition & stores: 3,830 tons, 12.7 %
Miscellaneous weights: 125 tons, 0.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
41,784 lbs / 18,953 Kg = 31.9 x 13.8 " / 350 mm shells or 6.3 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 6.0 ft / 1.8 m
Roll period: 17.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.51
Seaboat quality (Average = 1.00): 1.12

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 6.81 : 1
'Natural speed' for length: 26.06 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 62
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.00 ft / 7.92 m
- Forecastle (25 %): 20.00 ft / 6.10 m
- Mid (0 %): 20.00 ft / 6.10 m
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 20.60 ft / 6.28 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 89.7 %
- Above water (accommodation/working, high = better): 157.3 %
Waterplane Area: 47,273 Square feet or 4,392 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 183 lbs/sq ft or 894 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.42
- 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

The first ship designed following the parameters allowed by the ABUSE Agreement. Basically an enlarged Almirante Villar with an all-forward main battery. The decision was made to open space aft to try the new triple Dual Purpose mount designed for the 125mm gun.

The hull had also been designed with conversion to a carrier in mind; in 1941, the decision was made to complete the ship in this fashion instead (see: Bagh Nakh, in the Aviation Ship thread).


B-8, Samanjir, India Battleship laid down 1940, converted to aircraft carrier Bagh Nakh, 1941

Samanjir, laid down 1940

Displacement:
27,883 t light; 29,313 t standard; 31,434 t normal; 33,131 t full load

Dimensions: Length overall / water x beam x draught
743.44 ft / 721.78 ft x 91.86 ft x 27.89 ft (normal load)
226.60 m / 220.00 m x 28.00 m x 8.50 m

Armament:
8 - 13.78" / 350 mm guns (2x4 guns), 1,308.20lbs / 593.39kg shells, 1940 Model
Breech loading guns in turrets (on barbettes)
on centreline, all forward, 1 raised mount - superfiring
9 - 4.92" / 125 mm guns (3x3 guns), 59.59lbs / 27.03kg shells, 1940 Model
Dual purpose guns in deck mounts with hoists
on centreline, all aft
12 - 4.92" / 125 mm guns (4x3 guns), 59.59lbs / 27.03kg shells, 1940 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
20 - 1.38" / 35.0 mm guns (10x2 guns), 1.31lbs / 0.59kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 6 raised mounts
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, 2 raised mounts
Weight of broadside 11,746 lbs / 5,328 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11.8" / 300 mm 469.16 ft / 143.00 m 10.86 ft / 3.31 m
Ends: Unarmoured
Main Belt covers 100% of normal length

- Torpedo Bulkhead:
1.57" / 40 mm 469.16 ft / 143.00 m 25.59 ft / 7.80 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 13.8" / 350 mm 7.87" / 200 mm 11.8" / 300 mm
2nd: 1.18" / 30 mm 0.79" / 20 mm 1.18" / 30 mm
3rd: 1.18" / 30 mm 0.79" / 20 mm 1.18" / 30 mm
4th: 0.79" / 20 mm - -
5th: 0.39" / 10 mm - -

- Armour deck: 3.94" / 100 mm, Conning tower: 13.78" / 350 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 146,907 shp / 109,592 Kw = 32.00 kts
Range 15,000nm at 12.00 kts
Bunker at max displacement = 3,818 tons

Complement:
1,179 - 1,534

Cost:
£16.555 million / $66.219 million

Distribution of weights at normal displacement:
Armament: 1,468 tons, 4.7%
Armour: 9,157 tons, 29.1%
- Belts: 2,575 tons, 8.2%
- Torpedo bulkhead: 700 tons, 2.2%
- Armament: 1,923 tons, 6.1%
- Armour Deck: 3,664 tons, 11.7%
- Conning Tower: 296 tons, 0.9%
Machinery: 3,928 tons, 12.5%
Hull, fittings & equipment: 13,180 tons, 41.9%
Fuel, ammunition & stores: 3,551 tons, 11.3%
Miscellaneous weights: 150 tons, 0.5%
Aerial and Surface radar 75tons
Misc weight 35 tons
Room for growth 40 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
44,590 lbs / 20,226 Kg = 34.1 x 13.8 " / 350 mm shells or 6.0 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 5.3 ft / 1.6 m
Roll period: 16.8 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.76
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.595
Length to Beam Ratio: 7.86 : 1
'Natural speed' for length: 30.93 kts
Power going to wave formation at top speed: 57 %
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: 31.82 ft / 9.70 m
- Forecastle (20%): 23.95 ft / 7.30 m
- Mid (50%): 23.95 ft / 7.30 m
- Quarterdeck (15%): 23.95 ft / 7.30 m
- Stern: 23.95 ft / 7.30 m
- Average freeboard: 24.58 ft / 7.49 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 98.5%
- Above water (accommodation/working, high = better): 194.6%
Waterplane Area: 50,301 Square feet or 4,673 Square metres
Displacement factor (Displacement / loading): 109%
Structure weight / hull surface area: 185 lbs/sq ft or 904 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.58
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent