WesWorld

The Japanese Battleships that are no more. :-(

... But they were fun to create.

I used Jane's for the information, but of some ships, various things were not there so that was just guesswork.


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Iki, Japan Coast Defense BB laid down 1888
Ships: 1. Iki

Displacement:
8,692 t light; 9,240 t standard; 10,296 t normal; 11,099 t full load
Loading submergence 469 tons/feet

Dimensions:
350.00 ft x 66.00 ft x 26.00 ft (normal load)
106.68 m x 20.12 m x 7.92 m

Armament:
2 - 12.20" / 310 mm guns (1 Main turrets x 2 guns)
4 - 9.06" / 230 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
7 - 5.91" / 150 mm QF guns
QF guns mounted low & subject to being washed down in a seaway
20 - 2.76" / 70 mm guns
Weight of broadside 4,106 lbs / 1,863 kg
6 - 14.0" / 355.6 mm above water torpedoes

Armour:
Belt 14.00" / 356 mm, upper belt 8.00" / 203 mm, end belts 4.00" / 102 mm
Belts cover 100 % of normal area
Main turrets 12.00" / 305 mm, 2nd casemates 4.00" / 102 mm
QF casemates 1.00" / 25 mm
Armour deck 1.00" / 25 mm, Conning tower 6.00" / 152 mm

Machinery:
Coal fired boilers, simple reciprocating steam engines,
Direct drive, 2 shafts, 9,691 ihp / 7,229 Kw = 17.00 kts
Range 6,000nm at 10.00 kts

Complement:
511 - 664

Cost:
£0.999 million / $3.995 million

Distribution of weights at normal displacement:
Armament: 513 tons, 5.0 %
Armour: 3,053 tons, 29.7 %
Belts: 2,207 tons, 21.4 %, Armament: 481 tons, 4.7 %, Armour Deck: 303 tons, 2.9 %
Conning Tower: 61 tons, 0.6 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 1,881 tons, 18.3 %
Hull, fittings & equipment: 3,245 tons, 31.5 %
Fuel, ammunition & stores: 1,604 tons, 15.6 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 3.7

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is cramped

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.19
Shellfire needed to sink: 8,099 lbs / 3,674 Kg = 9.2 x 12.2 " / 310 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.4
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 52 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.36
Relative quality as seaboat: 1.05

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.45
Hull speed coefficient 'M': 4.92
'Natural speed' for length: 18.71 kts
Power going to wave formation at top speed: 49 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 97.9 %
Relative accommodation and working space: 56.3 %
(Average = 100%)
Displacement factor: 94 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.97
(Structure weight / hull surface area: 138 lbs / square foot or 673 Kg / square metre)
Relative longitudinal hull strength: 2.05
(for 10.00 ft / 3.05 m average freeboard, freeboard adjustment -5.23 ft)
Relative composite hull strength: 1.04

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Tango, Japan Coast Defense BB laid down 1893
Ships: 1. Tango

Displacement:
10,605 t light; 11,275 t standard; 12,600 t normal; 13,610 t full load
Loading submergence 533 tons/feet

Dimensions:
375.00 ft x 70.00 ft x 28.00 ft (normal load)
114.30 m x 21.34 m x 8.53 m

Armament:
4 - 12.20" / 310 mm guns (2 Main turrets x 2 guns)
12 - 5.91" / 150 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
10 - 2.95" / 75 mm QF guns
QF guns mounted low & subject to being washed down in a seaway
20 - 0.98" / 25 mm guns
Weight of broadside 5,010 lbs / 2,272 kg

Armour:
Belt 15.00" / 381 mm, ends unarmoured
Belts cover 113 % of normal area
Main turrets 10.00" / 254 mm, 2nd casemates 5.00" / 127 mm
QF casemates 2.00" / 51 mm
Armour deck 1.00" / 25 mm, Conning tower 8.00" / 203 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 16,248 ihp / 12,121 Kw = 19.00 kts
Range 6,000nm at 11.00 kts

Complement:
594 - 773

Cost:
£1.296 million / $5.185 million

Distribution of weights at normal displacement:
Armament: 626 tons, 5.0 %
Armour: 3,223 tons, 25.6 %
Belts: 1,843 tons, 14.6 %, Armament: 941 tons, 7.5 %, Armour Deck: 345 tons, 2.7 %
Conning Tower: 93 tons, 0.7 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,850 tons, 22.6 %
Hull, fittings & equipment: 3,906 tons, 31.0 %
Fuel, ammunition & stores: 1,995 tons, 15.8 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 4.0

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is cramped

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.19
Shellfire needed to sink: 8,757 lbs / 3,972 Kg = 9.6 x 12.2 " / 310 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.4
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 59 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.50
Relative quality as seaboat: 1.18

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.45
Hull speed coefficient 'M': 4.93
'Natural speed' for length: 19.36 kts
Power going to wave formation at top speed: 53 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 111.7 %
Relative accommodation and working space: 83.7 %
(Average = 100%)
Displacement factor: 90 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.92
(Structure weight / hull surface area: 139 lbs / square foot or 681 Kg / square metre)
Relative longitudinal hull strength: 2.47
(for 14.00 ft / 4.27 m average freeboard, freeboard adjustment -1.86 ft)
Relative composite hull strength: 1.01

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Okinoshima, Japan Coast Defense BB laid down 1894
Ships: 2. Okinoshima (ex-Russian General Admiral Graf Apraxin), Mishima (ex-Russian Admiral Senyavin)

Displacement:
4,282 t light; 4,572 t standard; 5,143 t normal; 5,579 t full load
Loading submergence 304 tons/feet

Dimensions:
300.00 ft x 50.00 ft x 20.00 ft (normal load)
91.44 m x 15.24 m x 6.10 m

Armament:
4 - 10.00" / 254 mm guns (2 Main turrets x 2 guns)
4 - 4.70" / 119 mm guns
10 - 1.80" / 46 mm QF guns
2 - 1.70" / 43 mm guns
Weight of broadside 2,242 lbs / 1,017 kg

Armour:
Belt 10.00" / 254 mm, ends unarmoured
Belts cover 100 % of normal area
Main turrets 8.00" / 203 mm, 2nd gun shields 2.00" / 51 mm
Armour deck 1.00" / 25 mm, Conning tower 5.00" / 127 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 5,096 ihp / 3,801 Kw = 16.00 kts
Range 5,500nm at 10.00 kts

Complement:
303 - 394

Cost:
£0.508 million / $2.033 million

Distribution of weights at normal displacement:
Armament: 280 tons, 5.4 %
Armour: 1,378 tons, 26.8 %
Belts: 722 tons, 14.0 %, Armament: 427 tons, 8.3 %, Armour Deck: 197 tons, 3.8 %
Conning Tower: 32 tons, 0.6 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 879 tons, 17.1 %
Hull, fittings & equipment: 1,745 tons, 33.9 %
Fuel, ammunition & stores: 861 tons, 16.7 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 2.1

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is cramped
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.10
Shellfire needed to sink: 4,398 lbs / 1,995 Kg = 8.8 x 10.0 " / 254 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.1
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 61 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.65
Relative quality as seaboat: 1.22

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.43
Hull speed coefficient 'M': 5.31
'Natural speed' for length: 17.32 kts
Power going to wave formation at top speed: 48 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 97.6 %
Relative accommodation and working space: 67.0 %
(Average = 100%)
Displacement factor: 96 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.94
(Structure weight / hull surface area: 109 lbs / square foot or 532 Kg / square metre)
Relative longitudinal hull strength: 2.14
(for 10.00 ft / 3.05 m average freeboard, freeboard adjustment -3.26 ft)
Relative composite hull strength: 1.02

========================================

Fuji, Japan Battleship laid down 1894
Ships: 2. Fuji, Yashima

Displacement:
11,605 t light; 12,255 t standard; 13,629 t normal; 14,673 t full load
Loading submergence 609 tons/feet

Dimensions:
400.00 ft x 75.00 ft x 26.50 ft (normal load)
121.92 m x 22.86 m x 8.08 m

Armament:
4 - 12.20" / 310 mm guns (2 Main turrets x 2 guns)
8 - 5.91" / 150 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
20 - 1.97" / 50 mm QF guns
Weight of broadside 4,536 lbs / 2,058 kg
1 - 18.0" / 457.2 mm above water torpedoes, 4 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
Belt 18.00" / 457 mm, ends unarmoured
Belts cover 107 % of normal area
Main turrets 6.00" / 152 mm, 2nd casemates 6.00" / 152 mm
QF gun shields 1.00" / 25 mm
Armour deck 2.00" / 51 mm, Conning tower 14.00" / 356 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 16,702 ihp / 12,459 Kw = 19.00 kts
Range 6,000nm at 11.00 kts

Complement:
630 - 819

Cost:
£1.286 million / $5.142 million

Distribution of weights at normal displacement:
Armament: 567 tons, 4.2 %
Armour: 3,922 tons, 28.8 %
Belts: 2,314 tons, 17.0 %, Armament: 647 tons, 4.7 %, Armour Deck: 788 tons, 5.8 %
Conning Tower: 172 tons, 1.3 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,880 tons, 21.1 %
Hull, fittings & equipment: 4,236 tons, 31.1 %
Fuel, ammunition & stores: 2,024 tons, 14.9 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 5.0

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.27
Shellfire needed to sink: 11,721 lbs / 5,317 Kg = 12.9 x 12.2 " / 310 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.6
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 74 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.43
Relative quality as seaboat: 1.48

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.45
Hull speed coefficient 'M': 5.12
'Natural speed' for length: 20.00 kts
Power going to wave formation at top speed: 51 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 105.9 %
Relative accommodation and working space: 101.3 %
(Average = 100%)
Displacement factor: 96 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.92
(Structure weight / hull surface area: 135 lbs / square foot or 661 Kg / square metre)
Relative longitudinal hull strength: 2.41
(for 16.00 ft / 4.88 m average freeboard, freeboard adjustment -0.11 ft)
Relative composite hull strength: 1.01

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Shikishima, Japan Battleship laid down 1897
Ships: 2. Shikishima, Asahi

Displacement:
12,652 t light; 13,405 t standard; 15,408 t normal; 16,948 t full load
Loading submergence 675 tons/feet

Dimensions:
438.00 ft x 76.00 ft x 27.00 ft (normal load)
133.50 m x 23.16 m x 8.23 m

Armament:
4 - 12.20" / 310 mm guns (2 Main turrets x 2 guns)
14 - 5.91" / 150 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
20 - 2.95" / 75 mm QF guns
QF guns mounted low & subject to being washed down in a seaway
2 - 1.70" / 43 mm guns
Weight of broadside 5,340 lbs / 2,422 kg
4 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
Belt 10.00" / 254 mm, upper belt 6.00" / 152 mm, end belts 4.00" / 102 mm
Belts cover 100 % of normal area
Main turrets 11.00" / 279 mm, 2nd casemates 6.00" / 152 mm
Armour deck 2.00" / 51 mm, Conning tower 14.00" / 356 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 17,327 ihp / 12,926 Kw = 19.00 kts
Range 7,000nm at 12.00 kts

Complement:
691 - 898

Cost:
£1.401 million / $5.605 million

Distribution of weights at normal displacement:
Armament: 667 tons, 4.3 %
Armour: 4,340 tons, 28.2 %
Belts: 2,145 tons, 13.9 %, Armament: 1,133 tons, 7.4 %, Armour Deck: 875 tons, 5.7 %
Conning Tower: 187 tons, 1.2 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,840 tons, 18.4 %
Hull, fittings & equipment: 4,804 tons, 31.2 %
Fuel, ammunition & stores: 2,755 tons, 17.9 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 4.6

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.20
Shellfire needed to sink: 14,681 lbs / 6,659 Kg = 16.2 x 12.2 " / 310 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.8
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 74 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.49
Relative quality as seaboat: 1.48

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.44
Hull speed coefficient 'M': 5.38
'Natural speed' for length: 20.93 kts
Power going to wave formation at top speed: 48 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 97.8 %
Relative accommodation and working space: 104.3 %
(Average = 100%)
Displacement factor: 100 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.94
(Structure weight / hull surface area: 138 lbs / square foot or 676 Kg / square metre)
Relative longitudinal hull strength: 1.99
(for 16.00 ft / 4.88 m average freeboard, freeboard adjustment -0.51 ft)
Relative composite hull strength: 1.01

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Mikasa, Japan Battleship laid down 1897
Ships: 2. Mikasa, Hatsuse

Displacement:
13,916 t light; 14,697 t standard; 16,663 t normal; 18,169 t full load
Loading submergence 730 tons/feet

Dimensions:
450.00 ft x 80.00 ft x 27.00 ft (normal load)
137.16 m x 24.38 m x 8.23 m

Armament:
4 - 12.20" / 310 mm guns (2 Main turrets x 2 guns)
14 - 5.91" / 150 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
20 - 2.95" / 75 mm QF guns
QF guns mounted low & subject to being washed down in a seaway
8 - 1.97" / 50 mm guns
Weight of broadside 5,366 lbs / 2,434 kg
4 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
Belt 9.00" / 229 mm, end belts 2.00" / 51 mm
Belts cover 107 % of normal area
Main turrets 10.00" / 254 mm, 2nd casemates 6.00" / 152 mm
QF casemates 2.00" / 51 mm, Light gun shields 1.00" / 25 mm
Armour deck 3.00" / 76 mm, Conning tower 14.00" / 356 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 22,090 ihp / 16,479 Kw = 20.00 kts
Range 8,000nm at 11.00 kts

Complement:
733 - 953

Cost:
£1.557 million / $6.230 million

Distribution of weights at normal displacement:
Armament: 671 tons, 4.0 %
Armour: 4,236 tons, 25.4 %
Belts: 1,467 tons, 8.8 %, Armament: 1,154 tons, 6.9 %, Armour Deck: 1,419 tons, 8.5 %
Conning Tower: 197 tons, 1.2 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 3,621 tons, 21.7 %
Hull, fittings & equipment: 5,388 tons, 32.3 %
Fuel, ammunition & stores: 2,746 tons, 16.5 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 5.6

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.28
Shellfire needed to sink: 14,647 lbs / 6,644 Kg = 16.1 x 12.2 " / 310 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.7
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 73 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.41
Relative quality as seaboat: 1.46

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.44
Hull speed coefficient 'M': 5.39
'Natural speed' for length: 21.21 kts
Power going to wave formation at top speed: 50 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 106.0 %
Relative accommodation and working space: 112.9 %
(Average = 100%)
Displacement factor: 99 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.98
(Structure weight / hull surface area: 145 lbs / square foot or 709 Kg / square metre)
Relative longitudinal hull strength: 2.09
(for 17.00 ft / 5.18 m average freeboard, freeboard adjustment 0.23 ft)
Relative composite hull strength: 1.05

========================================

Suwo, Japan Battleship laid down 1899
Ships: 2. Suwo (ex-Russian Pobieda), Sagami (ex-Russian Peresviet)

Displacement:
10,650 t light; 11,181 t standard; 12,902 t normal; 14,227 t full load
Loading submergence 611 tons/feet

Dimensions:
424.00 ft x 71.00 ft x 25.00 ft (normal load)
129.24 m x 21.64 m x 7.62 m

Armament:
4 - 10.00" / 254 mm guns (2 Main turrets x 2 guns)
10 - 6.00" / 152 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
16 - 2.90" / 74 mm QF guns
QF guns mounted low & subject to being washed down in a seaway
4 - 0.70" / 18 mm guns
Weight of broadside 3,276 lbs / 1,486 kg
2 - 15.0" / 381 mm submerged torpedo tubes

Armour:
Belt 11.00" / 279 mm, upper belt 6.00" / 152 mm, end belts 4.00" / 102 mm
Belts cover 100 % of normal area
Main turrets 12.00" / 305 mm, 2nd casemates 5.00" / 127 mm
Armour deck 2.00" / 51 mm, Conning tower 10.00" / 254 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 3 shafts, 15,655 ihp / 11,679 Kw = 19.00 kts
Range 7,000nm at 12.00 kts

Complement:
605 - 786

Cost:
£1.065 million / $4.258 million

Distribution of weights at normal displacement:
Armament: 409 tons, 3.2 %
Armour: 3,959 tons, 30.7 %
Belts: 2,139 tons, 16.6 %, Armament: 911 tons, 7.1 %, Armour Deck: 791 tons, 6.1 %
Conning Tower: 119 tons, 0.9 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,485 tons, 19.3 %
Hull, fittings & equipment: 3,796 tons, 29.4 %
Fuel, ammunition & stores: 2,252 tons, 17.5 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 4.3

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable and able to fight her guns in the heaviest weather

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.21
Shellfire needed to sink: 13,978 lbs / 6,340 Kg = 28.0 x 10.0 " / 254 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.9
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 77 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.40
Relative quality as seaboat: 1.53

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.43
Hull speed coefficient 'M': 5.53
'Natural speed' for length: 20.59 kts
Power going to wave formation at top speed: 48 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 89.2 %
Relative accommodation and working space: 107.7 %
(Average = 100%)
Displacement factor: 106 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.95
(Structure weight / hull surface area: 120 lbs / square foot or 585 Kg / square metre)
Relative longitudinal hull strength: 1.90
(for 16.00 ft / 4.88 m average freeboard, freeboard adjustment 0.07 ft)
Relative composite hull strength: 1.02

========================================

Iwami, Japan Battleship laid down 1900
Ships: 2. Iwami (ex-Russian Orel), Hizen (ex-Russian Retvizan)

Displacement:
10,377 t light; 11,003 t standard; 12,737 t normal; 14,073 t full load
Loading submergence 580 tons/feet

Dimensions:
376.00 ft x 76.00 ft x 26.00 ft (normal load)
114.60 m x 23.16 m x 7.92 m

Armament:
4 - 12.20" / 310 mm guns (2 Main turrets x 2 guns)
6 - 5.91" / 150 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
16 - 2.90" / 74 mm QF guns
QF guns mounted low & subject to being washed down in a seaway
4 - 1.70" / 43 mm guns
Weight of broadside 4,459 lbs / 2,022 kg
1 - 15.0" / 381 mm above water torpedoes, 2 - 15.0" / 381 mm submerged torpedo tubes

Armour:
Belt 10.00" / 254 mm, upper belt 6.00" / 152 mm, end belts 4.00" / 102 mm
Belts cover 100 % of normal area
Main turrets 11.00" / 279 mm, 2nd casemates 5.00" / 127 mm
Armour deck 2.00" / 51 mm, Conning tower 10.00" / 254 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 0 shafts, 13,358 ihp / 9,965 Kw = 18.00 kts
Range 7,000nm at 12.00 kts
Caution: Too much power for reciprocating engines

Complement:
599 - 779

Cost:
£1.124 million / $4.494 million

Distribution of weights at normal displacement:
Armament: 557 tons, 4.4 %
Armour: 3,727 tons, 29.3 %
Belts: 1,884 tons, 14.8 %, Armament: 974 tons, 7.6 %, Armour Deck: 751 tons, 5.9 %
Conning Tower: 118 tons, 0.9 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,087 tons, 16.4 %
Hull, fittings & equipment: 4,006 tons, 31.4 %
Fuel, ammunition & stores: 2,360 tons, 18.5 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 4.5

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.19
Shellfire needed to sink: 13,437 lbs / 6,095 Kg = 14.8 x 12.2 " / 310 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.9
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 73 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.44
Relative quality as seaboat: 1.47

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.46
Hull speed coefficient 'M': 4.92
'Natural speed' for length: 19.39 kts
Power going to wave formation at top speed: 51 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 89.2 %
Relative accommodation and working space: 102.0 %
(Average = 100%)
Displacement factor: 103 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.94
(Structure weight / hull surface area: 136 lbs / square foot or 663 Kg / square metre)
Relative longitudinal hull strength: 2.67
(for 16.00 ft / 4.88 m average freeboard, freeboard adjustment 0.11 ft)
Relative composite hull strength: 1.04

========================================

Satsuma, Japan Battleship laid down 1909
Ships: 2. Satsuma, Aki
Displacement:
18,174 t light; 19,613 t standard; 22,800 t normal; 25,259 t full load
Loading submergence 964 tons/feet

Dimensions:
500.00 ft x 95.00 ft x 28.00 ft (normal load)
152.40 m x 28.96 m x 8.53 m

Armament:
12 - 12.20" / 310 mm guns (6 Main turrets x 2 guns)
8 - 5.91" / 150 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
12 - 1.97" / 50 mm AA guns
24 - 0.98" / 25 mm guns
Weight of broadside 11,789 lbs / 5,347 kg
5 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
Belt 10.00" / 254 mm, end belts 3.50" / 89 mm
Belts cover 100 % of normal area
Main turrets 11.00" / 279 mm, 2nd casemates 4.00" / 102 mm
QF gun shields 1.00" / 25 mm, Light gun shields 1.00" / 25 mm
Armour deck 1.50" / 38 mm, Conning tower 6.00" / 152 mm

Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 3 shafts, 38,076 ihp / 28,405 Kw = 22.00 kts
Range 7,000nm at 15.00 kts

Complement:
927 - 1,206

Cost:
£2.268 million / $9.073 million

Distribution of weights at normal displacement:
Armament: 1,474 tons, 6.5 %
Armour: 5,950 tons, 26.1 %
Belts: 1,959 tons, 8.6 %, Armament: 2,950 tons, 12.9 %, Armour Deck: 936 tons, 4.1 %
Conning Tower: 104 tons, 0.5 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,816 tons, 12.4 %
Hull, fittings & equipment: 7,934 tons, 34.8 %
Fuel, ammunition & stores: 4,626 tons, 20.3 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 6.2

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.17
Shellfire needed to sink: 23,132 lbs / 10,493 Kg = 25.4 x 12.2 " / 310 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 2.5
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 57 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.50
Relative quality as seaboat: 1.14

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.45
Hull speed coefficient 'M': 5.39
'Natural speed' for length: 22.36 kts
Power going to wave formation at top speed: 53 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 93.7 %
Relative accommodation and working space: 124.8 %
(Average = 100%)
Displacement factor: 98 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.94
(Structure weight / hull surface area: 171 lbs / square foot or 834 Kg / square metre)
Relative longitudinal hull strength: 1.80
(for 18.00 ft / 5.49 m average freeboard, freeboard adjustment 0.14 ft)
Relative composite hull strength: 1.00

========================================

Kawachi, Japan Battleship laid down 1910
Ships: 2. Kawachi, Settsu

Displacement:
21,904 t light; 23,459 t standard; 27,771 t normal; 31,110 t full load
Loading submergence 1,217 tons/feet

Dimensions:
600.00 ft x 100.00 ft x 27.00 ft (normal load)
182.88 m x 30.48 m x 8.23 m

Armament:
12 - 12.20" / 310 mm guns (6 Main turrets x 2 guns)
10 - 5.91" / 150 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
12 - 1.97" / 50 mm AA guns
24 - 0.98" / 25 mm guns
Weight of broadside 11,995 lbs / 5,441 kg
3 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
Belt 12.00" / 305 mm, end belts 3.50" / 89 mm
Belts cover 100 % of normal area
Main turrets 12.00" / 305 mm, 2nd casemates 4.00" / 102 mm
QF gun shields 1.00" / 25 mm, Light gun shields 1.00" / 25 mm
Armour deck 2.00" / 51 mm, Conning tower 10.00" / 254 mm
Torpedo bulkhead 1.00" / 25 mm

Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 4 shafts, 40,105 ihp / 29,919 Kw = 22.00 kts
Range 9,000nm at 15.00 kts

Complement:
1,075 - 1,398

Cost:
£2.383 million / $9.530 million

Distribution of weights at normal displacement:
Armament: 1,499 tons, 5.4 %
Armour: 8,117 tons, 29.2 %
Belts: 2,777 tons, 10.0 %, Armament: 3,175 tons, 11.4 %, Armour Deck: 1,577 tons, 5.7 %
Conning Tower: 198 tons, 0.7 %, Torpedo bulkhead: 390 tons, 1.4 %
Machinery: 2,546 tons, 9.2 %
Hull, fittings & equipment: 9,742 tons, 35.1 %
Fuel, ammunition & stores: 5,867 tons, 21.1 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 7.5

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.25
Shellfire needed to sink: 29,908 lbs / 13,566 Kg = 32.9 x 12.2 " / 310 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 4.2
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 64 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.39
Relative quality as seaboat: 1.28

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.43
Hull speed coefficient 'M': 6.06
'Natural speed' for length: 24.49 kts
Power going to wave formation at top speed: 46 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 91.6 %
Relative accommodation and working space: 132.1 %
(Average = 100%)
Displacement factor: 110 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.99
(Structure weight / hull surface area: 172 lbs / square foot or 838 Kg / square metre)
Relative longitudinal hull strength: 1.23
(for 17.50 ft / 5.33 m average freeboard, freeboard adjustment -1.08 ft)
Relative composite hull strength: 1.01


Walter

The Japanese Battle Cruisers that are no more.
At least the Kongo class might be safe in the Twilight Zone.

========================================

Tsukuba, Japan Battle Cruiser laid down 1905
Ships: 2. Tsukuba, Ikoma

Displacement:
11,554 t light; 12,267 t standard; 13,483 t normal; 14,402 t full load
Loading submergence 632 tons/feet

Dimensions:
440.00 ft x 75.00 ft x 26.00 ft (normal load)
134.11 m x 22.86 m x 7.92 m

Armament:
4 - 12.20" / 310 mm guns (2 Main turrets x 2 guns)
12 - 5.91" / 150 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
8 - 4.72" / 120 mm QF guns
6 - 1.97" / 50 mm guns
Weight of broadside 5,316 lbs / 2,411 kg
1 - 18.0" / 457.2 mm above water torpedoes, 2 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
Belt 7.00" / 178 mm, ends unarmoured
Belts cover 133 % of normal area
Main turrets 9.00" / 229 mm, 2nd casemates 5.00" / 127 mm
QF gun shields 1.00" / 25 mm
Armour deck 1.50" / 38 mm, Conning tower 8.00" / 203 mm

Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 26,795 ihp / 19,989 Kw = 21.80 kts
Range 7,000nm at 11.00 kts

Complement:
625 - 813

Cost:
£1.493 million / $5.972 million

Distribution of weights at normal displacement:
Armament: 665 tons, 4.9 %
Armour: 2,756 tons, 20.4 %
Belts: 1,212 tons, 9.0 %, Armament: 833 tons, 6.2 %, Armour Deck: 614 tons, 4.6 %
Conning Tower: 98 tons, 0.7 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 3,789 tons, 28.1 %
Hull, fittings & equipment: 4,345 tons, 32.2 %
Fuel, ammunition & stores: 1,929 tons, 14.3 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 5.4

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is cramped

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.33
Shellfire needed to sink: 7,212 lbs / 3,271 Kg = 7.9 x 12.2 " / 310 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.2
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 50 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.33
Relative quality as seaboat: 1.00

Hull form characteristics:
Block coefficient: 0.550
Sharpness coefficient: 0.41
Hull speed coefficient 'M': 5.65
'Natural speed' for length: 20.98 kts
Power going to wave formation at top speed: 53 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 131.7 %
Relative accommodation and working space: 86.2 %
(Average = 100%)
Displacement factor: 86 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.98
(Structure weight / hull surface area: 137 lbs / square foot or 668 Kg / square metre)
Relative longitudinal hull strength: 1.71
(for 13.00 ft / 3.96 m average freeboard, freeboard adjustment -3.08 ft)
Relative composite hull strength: 1.03

========================================

Ibuki, Japan Battle cruiser laid down 1905
Ships: 2. Ibuki, Kurama

Displacement:
11,684 t light; 12,488 t standard; 13,789 t normal; 14,775 t full load
Loading submergence 646 tons/feet

Dimensions:
450.00 ft x 75.00 ft x 26.00 ft (normal load)
137.16 m x 22.86 m x 7.92 m

Armament:
4 - 12.20" / 310 mm guns (2 Main turrets x 2 guns)
8 - 7.87" / 200 mm guns (4 2nd turrets x 2 guns)
14 - 4.72" / 120 mm QF guns
QF guns mounted low & subject to being washed down in a seaway
20 - 0.98" / 25 mm guns
Weight of broadside 6,336 lbs / 2,874 kg
3 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
Belt 7.00" / 178 mm, ends unarmoured
Belts cover 126 % of normal area
Main turrets 7.00" / 178 mm, 2nd turrets 6.00" / 152 mm
Armour deck 1.50" / 38 mm, Conning tower 8.00" / 203 mm

Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 23,185 ihp / 17,296 Kw = 21.00 kts
Range 7,500nm at 11.00 kts

Complement:
636 - 827

Cost:
£1.531 million / $6.124 million

Distribution of weights at normal displacement:
Armament: 792 tons, 5.7 %
Armour: 2,924 tons, 21.2 %
Belts: 1,170 tons, 8.5 %, Armament: 1,028 tons, 7.5 %, Armour Deck: 627 tons, 4.6 %
Conning Tower: 99 tons, 0.7 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 3,262 tons, 23.7 %
Hull, fittings & equipment: 4,705 tons, 34.1 %
Fuel, ammunition & stores: 2,105 tons, 15.3 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 4.7

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is cramped

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.23
Shellfire needed to sink: 7,898 lbs / 3,583 Kg = 8.7 x 12.2 " / 310 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.3
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 53 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.43
Relative quality as seaboat: 1.06

Hull form characteristics:
Block coefficient: 0.550
Sharpness coefficient: 0.41
Hull speed coefficient 'M': 5.74
'Natural speed' for length: 21.21 kts
Power going to wave formation at top speed: 50 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 124.8 %
Relative accommodation and working space: 88.0 %
(Average = 100%)
Displacement factor: 87 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.96
(Structure weight / hull surface area: 145 lbs / square foot or 707 Kg / square metre)
Relative longitudinal hull strength: 1.64
(for 13.00 ft / 3.96 m average freeboard, freeboard adjustment -3.15 ft)
Relative composite hull strength: 1.01

========================================

Katori, Japan Battle Cruiser laid down 1907
Ships: 2. Katori, Kashima

Displacement:
14,375 t light; 15,420 t standard; 17,774 t normal; 19,586 t full load
Loading submergence 779 tons/feet

Dimensions:
480.00 ft x 80.00 ft x 27.00 ft (normal load)
146.30 m x 24.38 m x 8.23 m

Armament:
8 - 12.20" / 310 mm guns (6 Main turrets)
12 - 5.12" / 130 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
12 - 3.15" / 80 mm QF guns
QF guns mounted low & subject to being washed down in a seaway
20 - 0.98" / 25 mm guns
Weight of broadside 8,273 lbs / 3,753 kg
5 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
Belt 10.00" / 254 mm, end belts 2.00" / 51 mm
Belts cover 100 % of normal area
Main turrets 11.00" / 279 mm, 2nd casemates 4.00" / 102 mm
QF casemates 1.00" / 25 mm, Light gun shields 1.00" / 25 mm
Armour deck 2.00" / 51 mm, Conning tower 9.00" / 229 mm

Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 3 shafts, 22,362 ihp / 16,682 Kw = 20.00 kts
Range 12,000nm at 11.00 kts

Complement:
769 - 1,000

Cost:
£1.710 million / $6.838 million

Distribution of weights at normal displacement:
Armament: 1,034 tons, 5.8 %
Armour: 5,018 tons, 28.2 %
Belts: 1,595 tons, 9.0 %, Armament: 2,282 tons, 12.8 %, Armour Deck: 1,009 tons, 5.7 %
Conning Tower: 132 tons, 0.7 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,412 tons, 13.6 %
Hull, fittings & equipment: 5,911 tons, 33.3 %
Fuel, ammunition & stores: 3,399 tons, 19.1 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 4.3

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.10
Shellfire needed to sink: 17,414 lbs / 7,899 Kg = 19.2 x 12.2 " / 310 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 2.0
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 70 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.70
Relative quality as seaboat: 1.41

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.43
Hull speed coefficient 'M': 5.63
'Natural speed' for length: 21.91 kts
Power going to wave formation at top speed: 47 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 93.6 %
Relative accommodation and working space: 114.8 %
(Average = 100%)
Displacement factor: 98 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.95
(Structure weight / hull surface area: 149 lbs / square foot or 729 Kg / square metre)
Relative longitudinal hull strength: 1.75
(for 17.00 ft / 5.18 m average freeboard, freeboard adjustment 0.01 ft)
Relative composite hull strength: 1.01

========================================

Kongo, Japan Battlecruiser laid down 1911
Ships: 4. Kongo, Hiei, Haruna, Kirishima

Displacement:
28,065 t light; 29,800 t standard; 34,482 t normal; 38,090 t full load
Loading submergence 1,407 tons/feet

Dimensions:
680.00 ft x 102.00 ft x 29.00 ft (normal load)
207.26 m x 31.09 m x 8.84 m

Armament:
8 - 14.17" / 360 mm guns (4 Main turrets x 2 guns, 2 superfiring turrets)
Aft turrets separated by engine room
16 - 5.12" / 130 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
18 - 1.97" / 50 mm QF guns
30 - 0.98" / 25 mm guns
Weight of broadside 12,544 lbs / 5,690 kg
2 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:
Belt 11.00" / 279 mm, ends unarmoured
Belts cover 101 % of normal area
Main turrets 12.00" / 305 mm, 2nd casemates 4.00" / 102 mm
QF gun shields 1.00" / 25 mm, Light gun shields 1.00" / 25 mm
Armour deck 2.00" / 51 mm, Conning tower 12.00" / 305 mm
Torpedo bulkhead 2.00" / 51 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 4 shafts, 111,269 shp / 83,006 Kw = 28.00 kts
Range 10,000nm at 15.00 kts

Complement:
1,265 - 1,644

Cost:
£2.946 million / $11.785 million

Distribution of weights at normal displacement:
Armament: 1,568 tons, 4.5 %
Armour: 8,956 tons, 26.0 %
Belts: 2,558 tons, 7.4 %, Armament: 3,352 tons, 9.7 %, Armour Deck: 1,823 tons, 5.3 %
Conning Tower: 275 tons, 0.8 %, Torpedo bulkhead: 949 tons, 2.8 %
Machinery: 4,621 tons, 13.4 %
Hull, fittings & equipment: 12,820 tons, 37.2 %
Fuel, ammunition & stores: 6,417 tons, 18.6 %
Miscellaneous weights: 100 tons, 0.3 %

Metacentric height 6.8

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.16
Shellfire needed to sink: 35,184 lbs / 15,959 Kg = 24.7 x 14.2 " / 360 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 4.7
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 53 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.44
Relative quality as seaboat: 1.05

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.41
Hull speed coefficient 'M': 6.39
'Natural speed' for length: 26.08 kts
Power going to wave formation at top speed: 54 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 100.0 %
Relative accommodation and working space: 163.2 %
(Average = 100%)
Displacement factor: 112 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.97
(Structure weight / hull surface area: 186 lbs / square foot or 909 Kg / square metre)
Relative longitudinal hull strength: 1.35
(for 22.00 ft / 6.71 m average freeboard, freeboard adjustment 2.60 ft)
Relative composite hull strength: 1.00


Walter

I found that when I designed my fleets predicessors I found it hart breaking to lose so many awesome ships.....now we know how Britain felt after the washington treaty!

And when I look at them, I don't think they're too bad compared to the originals. I did improve them slightly if I had sufficient hull strength left (bit of extra speed or armor).

Walter