WesWorld

Battleships of the Japanese Navy.

Battleships in service.


Fuso Class: Fuso, Yamashiro, Ise, Hyuga.

Nagato Class: Nagato, Muttsu.

Okuni Class: Okuni, Inahime, Nene.

Yamato Class: Yamato, Musashi, Shinano, Echizen.

Oshima Class: Oshima, Aki

Fuso, Japan Senkan laid down 1914

Displacement:
30,477 t light; 32,166 t standard; 39,435 t normal; 45,093 t full load

Dimensions: Length overall / water x beam x draught
713.82 ft / 710.00 ft x 97.00 ft (Bulges 108.00 ft) x 30.00 ft (normal load)
217.57 m / 216.41 m x 29.57 m (Bulges 32.92 m) x 9.14 m

Armament:
12 - 14.17" / 360 mm guns (6x2 guns), 1,400.00lbs / 635.03kg shells, 1911 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 3 raised mounts - superfiring
16 - 5.12" / 130 mm guns in single mounts, 55.00lbs / 24.95kg shells, 1914 Model
Breech loading guns in casemate mounts
on side, all amidships
16 guns in hull casemates - Limited use in heavy seas
20 - 1.97" / 50.0 mm guns (10x2 guns), 4.00lbs / 1.81kg shells, 1914 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
42 - 0.98" / 25.0 mm guns (14x3 guns), 0.57lbs / 0.26kg shells, 1914 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 17,784 lbs / 8,067 kg
Shells per gun, main battery: 90
6 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 390.00 ft / 118.87 m 12.00 ft / 3.66 m
Ends: 3.50" / 89 mm 248.48 ft / 75.74 m 12.00 ft / 3.66 m
71.52 ft / 21.80 m Unarmoured ends
Upper: 2.00" / 51 mm 390.00 ft / 118.87 m 18.00 ft / 5.49 m
Main Belt covers 85 % of normal length

- Torpedo Bulkhead and Bulges:
2.00" / 51 mm 390.00 ft / 118.87 m 29.00 ft / 8.84 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.0" / 279 mm 10.0" / 254 mm 11.0" / 279 mm
2nd: 4.00" / 102 mm - 4.00" / 102 mm
3rd: 1.00" / 25 mm - -
4th: 1.00" / 25 mm - -

- Armour deck: 2.00" / 51 mm, Conning tower: 13.00" / 330 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 65,379 shp / 48,772 Kw = 24.00 kts
Range 18,235nm at 15.00 kts (Bunkerage = 13,084 tons)

Complement:
1,398 - 1,818

Cost:
£4.245 million / $16.982 million

Distribution of weights at normal displacement:
Armament: 2,281 tons, 5.8 %
Armour: 10,334 tons, 26.2 %
- Belts: 3,522 tons, 8.9 %
- Torpedo bulkhead: 837 tons, 2.1 %
- Armament: 3,825 tons, 9.7 %
- Armour Deck: 1,823 tons, 4.6 %
- Conning Tower: 326 tons, 0.8 %
Machinery: 2,518 tons, 6.4 %
Hull, fittings & equipment: 15,143 tons, 38.4 %
Fuel, ammunition & stores: 8,959 tons, 22.7 %
Miscellaneous weights: 200 tons, 0.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
42,907 lbs / 19,462 Kg = 30.1 x 14.2 " / 360 mm shells or 6.4 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 7.6 ft / 2.3 m
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.48
Seaboat quality (Average = 1.00): 1.12

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.600
Length to Beam Ratio: 6.57 : 1
'Natural speed' for length: 26.65 kts
Power going to wave formation at top speed: 45 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 21.65 ft / 6.60 m
- Forecastle (20 %): 18.65 ft / 5.68 m
- Mid (50 %): 18.65 ft / 5.68 m
- Quarterdeck (24 %): 11.60 ft / 3.54 m (18.65 ft / 5.68 m before break)
- Stern: 11.60 ft / 3.54 m
- Average freeboard: 17.20 ft / 5.24 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.2 %
- Above water (accommodation/working, high = better): 125.2 %
Waterplane Area: 49,270 Square feet or 4,577 Square metres
Displacement factor (Displacement / loading): 117 %
Structure weight / hull surface area: 218 lbs/sq ft or 1,062 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.10
- Longitudinal: 1.07
- Overall: 1.08
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent


SS 1 Data:

Fuso, Japan Battleship laid down 1914

Displacement:
29,857 t light; 32,166 t standard; 39,435 t normal; 45,093 t full load
Loading submergence 1,556 tons/feet

Dimensions:
710.00 ft x 108.00 ft x 30.00 ft (normal load)
216.41 m x 32.92 m x 9.14 m

Armament:
12 - 36.0 cm (14.17") / 45 cal Model 1911 guns in 6 Main turrets x 2 guns, 3 superfiring turrets; B,Q and X
16 - 13.0 cm (5.12") / 50 cal Model 1914 guns in 16 single casemate mounts.
Secondary guns mounted low & subject to being washed down in a seaway
18 - 50 mm (1.97") / 60 cal Model 1914 AA guns
42 - 25 mm (0.98") / 60 cal Model 1914 light AA guns
Weight of broadside 18,244 lbs / 8,275 kg
6 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:
Belt 12.00" / 305 mm, upper belt 2.00" / 51 mm, end belts 3.50" / 89 mm
Belts cover 85 % of normal area
Main turrets 11.00" / 279 mm, 2nd casemates 4.00" / 102 mm
AA gun shields 1.00" / 25 mm, Light gun shields 1.00" / 25 mm
Armour deck 2.00" / 51 mm, Conning tower 13.00" / 330 mm
Torpedo bulkhead 2.00" / 51 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 65,379 shp / 48,772 Kw = 24.00 kts
Range 17,200nm at 15.00 kts

Complement:
1,399 - 1,818

Cost:
£4.217 million / $16.867 million

Distribution of weights at normal displacement:
Armament: 2,280 tons, 5.8 %
Armour: 10,436 tons, 26.5 %
Belts: 3,139 tons, 8.0 %, Armament: 3,932 tons, 10.0 %, Armour Deck: 2,015 tons, 5.1 %
Conning Tower: 326 tons, 0.8 %, Torpedo bulkhead: 1,025 tons, 2.6 %
Machinery: 2,518 tons, 6.4 %
Hull, fittings & equipment: 14,422 tons, 36.6 %
Fuel, ammunition & stores: 9,579 tons, 24.3 %
Miscellaneous weights: 200 tons, 0.5 %

Metacentric height 7.6

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: 1.18
Shellfire needed to sink: 42,507 lbs / 19,281 Kg = 29.9 x 14.2 " / 360 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 6.3
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 56 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.41
Relative quality as seaboat: 1.12

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.42
Hull speed coefficient 'M': 6.38
'Natural speed' for length: 26.65 kts
Power going to wave formation at top speed: 45 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 84.4 %
Relative accommodation and working space: 127.5 %
(Average = 100%)
Displacement factor: 116 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.02
(Structure weight / hull surface area: 201 lbs / square foot or 979 Kg / square metre)
Relative longitudinal hull strength: 1.01
(for 17.20 ft / 5.24 m average freeboard, freeboard adjustment -2.72 ft)
Relative composite hull strength: 1.01



Fuso, Japan Senkan 1946 Rebuild laid down 1914 (Engine 1946)

Displacement:
33,321 t light; 35,507 t standard; 39,435 t normal; 42,578 t full load

Dimensions: Length overall / water x beam x draught
717.96 ft / 710.00 ft x 97.00 ft (Bulges 108.00 ft) x 30.00 ft (normal load)
218.84 m / 216.41 m x 29.57 m (Bulges 32.92 m) x 9.14 m

Armament:
12 - 14.17" / 360 mm guns (6x2 guns), 1,400.00lbs / 635.03kg shells, 1946 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 3 raised mounts - superfiring
16 - 5.00" / 127 mm guns in single mounts, 55.12lbs / 25.00kg shells, 1946 Model
Quick firing guns in casemate mounts
on side, all forward
16 guns in hull casemates - Limited use in heavy seas
20 - 2.95" / 75.0 mm guns (10x2 guns), 12.00lbs / 5.44kg shells, 1946 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread
36 - 1.57" / 40.0 mm guns (6x6 guns), 2.00lbs / 0.91kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
56 - 0.98" / 25.0 mm guns (14x4 guns), 0.57lbs / 0.26kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 18,026 lbs / 8,176 kg
Shells per gun, main battery: 137
168 - 4.7" / 120 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 14.0" / 356 mm 475.00 ft / 144.78 m 12.00 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 103% of normal length

- Torpedo Bulkhead and Bulges:
2.00" / 51 mm 475.00 ft / 144.78 m 29.00 ft / 8.84 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 16.0" / 406 mm 10.0" / 254 mm 14.0" / 356 mm
2nd: 4.00" / 102 mm - 4.00" / 102 mm
3rd: 1.00" / 25 mm - 1.00" / 25 mm
4th: 1.00" / 25 mm 1.00" / 25 mm -
5th: 1.00" / 25 mm 1.00" / 25 mm -

- Armour deck: 5.50" / 140 mm, Conning tower: 18.00" / 457 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 65,359 shp / 48,758 Kw = 24.00 kts
Range 10,000nm at 18.00 kts
Bunker at max displacement = 7,072 tons

Complement:
1,398 - 1,818

Cost:
£4.246 million / $16.984 million

Distribution of weights at normal displacement:
Armament: 2,311 tons, 5.9%
Armour: 14,203 tons, 36.0%
- Belts: 3,421 tons, 8.7%
- Torpedo bulkhead: 1,019 tons, 2.6%
- Armament: 4,188 tons, 10.6%
- Armour Deck: 5,125 tons, 13.0%
- Conning Tower: 449 tons, 1.1%
Machinery: 1,632 tons, 4.1%
Hull, fittings & equipment: 13,824 tons, 35.1%
Fuel, ammunition & stores: 6,115 tons, 15.5%
Miscellaneous weights: 1,350 tons, 3.4%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
54,246 lbs / 24,606 Kg = 38.1 x 14.2 " / 360 mm shells or 9.9 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 5.8 ft / 1.8 m
Roll period: 18.9 seconds
Steadiness - As gun platform (Average = 50 %): 57 %
- Recoil effect (Restricted arc if above 1.00): 0.49
Seaboat quality (Average = 1.00): 1.14

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.600
Length to Beam Ratio: 6.57 : 1
'Natural speed' for length: 26.65 kts
Power going to wave formation at top speed: 45 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.88 ft / 6.67 m
- Forecastle (20%): 18.88 ft / 5.75 m
- Mid (73%): 18.88 ft / 5.75 m (11.83 ft / 3.61 m aft of break)
- Quarterdeck (15%): 11.83 ft / 3.61 m
- Stern: 11.83 ft / 3.61 m
- Average freeboard: 17.20 ft / 5.24 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 78.9%
- Above water (accommodation/working, high = better): 110.2%
Waterplane Area: 50,370 Square feet or 4,680 Square metres
Displacement factor (Displacement / loading): 106%
Structure weight / hull surface area: 197 lbs/sq ft or 963 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.00
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate


Actual 25mm mounts: 8x4 (= 32 guns)
6x4 25mm mounts simmed for AA Rocket launcher mount.
12cm Rockets simmed as Torpedoes.

Actual shells per gun (1398t)
36cm = 100 rounds per gun (933 tons total)
5" = 315 rounds per gun (154 tons total)
75mm = 1500 rounds per gun (200 tons total)
40mm = 2000 rounds per gun (80 tons total)
25mm = 3000 rounds per gun (31 tons total)


1350t
- 200 tons for fire control and fire control center
- 100 tons for radar systems
- 334 tons for damage control and fire suppression systems
- 84 tons emergency diesel generators
- 334 tons for air condition system
- 144 tons for degaussing coils
- 38 tons for 6x28 12 cm AA Rocket launchers
- 60 for mount improvements
--- 40 tons for 75mm mounts
--- 12 tons for 40mm mounts
--- 8 tons for 25mm mounts
- 56 tons for for crew comfort.

Nagato, Japan Senkan laid down 1916

Displacement:
37,611 t light; 39,488 t standard; 45,915 t normal; 50,874 t full load

Dimensions: Length overall / water x beam x draught
809.41 ft / 800.00 ft x 97.00 ft (Bulges 108.00 ft) x 31.00 ft (normal load)
246.71 m / 243.84 m x 29.57 m (Bulges 32.92 m) x 9.45 m

Armament:
12 - 14.17" / 360 mm guns (4x3 guns), 1,450.00lbs / 657.71kg shells, 1916 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
20 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.40kg shells, 1914 Model
Breech loading guns in casemate mounts
on side, all amidships
20 guns in hull casemates - Limited use in heavy seas
24 - 1.97" / 50.0 mm guns (12x2 guns), 3.81lbs / 1.73kg shells, 1914 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 6 raised mounts
36 - 0.98" / 25.0 mm guns (12x3 guns), 0.48lbs / 0.22kg shells, 1914 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 18,849 lbs / 8,550 kg
Shells per gun, main battery: 90
4 - 21.0" / 533.4 mm above water torpedoes, 4 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 490.00 ft / 149.35 m 12.00 ft / 3.66 m
Ends: 3.50" / 89 mm 279.98 ft / 85.34 m 12.00 ft / 3.66 m
30.02 ft / 9.15 m Unarmoured ends
Upper: 2.00" / 51 mm 490.00 ft / 149.35 m 18.00 ft / 5.49 m
Main Belt covers 94 % of normal length

- Torpedo Bulkhead and Bulges:
2.00" / 51 mm 490.00 ft / 149.35 m 30.00 ft / 9.14 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 12.0" / 305 mm 10.0" / 254 mm 12.0" / 305 mm
2nd: 4.00" / 102 mm - 4.00" / 102 mm
3rd: 1.00" / 25 mm - -
4th: 1.00" / 25 mm - -

- Armour deck: 2.50" / 64 mm, Conning tower: 14.00" / 356 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 123,643 shp / 92,238 Kw = 28.00 kts
Range 10,314nm at 18.00 kts (Bunkerage = 11,570 tons)

Complement:
1,567 - 2,038

Cost:
£6.394 million / $25.574 million

Distribution of weights at normal displacement:
Armament: 2,317 tons, 5.0 %
Armour: 12,043 tons, 26.2 %
- Belts: 4,232 tons, 9.2 %
- Torpedo bulkhead: 1,088 tons, 2.4 %
- Armament: 3,767 tons, 8.2 %
- Armour Deck: 2,568 tons, 5.6 %
- Conning Tower: 389 tons, 0.8 %
Machinery: 4,607 tons, 10.0 %
Hull, fittings & equipment: 18,444 tons, 40.2 %
Fuel, ammunition & stores: 8,305 tons, 18.1 %
Miscellaneous weights: 200 tons, 0.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
47,111 lbs / 21,369 Kg = 33.1 x 14.2 " / 360 mm shells or 6.2 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 7.6 ft / 2.3 m
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0.54
Seaboat quality (Average = 1.00): 1.09

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.600
Length to Beam Ratio: 7.41 : 1
'Natural speed' for length: 28.28 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 21.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.52 ft / 7.47 m
- Forecastle (20 %): 21.51 ft / 6.56 m
- Mid (50 %): 21.51 ft / 6.56 m
- Quarterdeck (15 %): 14.50 ft / 4.42 m (21.50 ft / 6.55 m before break)
- Stern: 14.50 ft / 4.42 m
- Average freeboard: 20.70 ft / 6.31 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92.2 %
- Above water (accommodation/working, high = better): 140.0 %
Waterplane Area: 55,516 Square feet or 5,158 Square metres
Displacement factor (Displacement / loading): 115 %
Structure weight / hull surface area: 226 lbs/sq ft or 1,105 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.11
- Longitudinal: 1.08
- Overall: 1.09
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent


SS1 Data:

Nagato, Japan Battleship laid down 1916

Displacement:
37,028 t light; 39,490 t standard; 45,915 t normal; 50,872 t full load
Loading submergence 1,753 tons/feet

Dimensions:
800.00 ft x 108.00 ft x 31.00 ft (normal load)
243.84 m x 32.92 m x 9.45 m

Armament:
12 - 36.0 cm (14.17") / 45 cal Model 1916 guns in 4 Main turrets x 3 guns, 2 superfiring turrets; B and X
20 - 13.0 cm (5.12”) / 50 cal Model 1914 guns in 20 single casemate mounts
Secondary guns mounted low & subject to being washed down in a seaway
24 - 50 mm (1.97") / 60 cal Model 1914 AA guns
36 - 25 mm (0.98") / 60 cal Model 1914 light AA guns
Weight of broadside 18,532 lbs / 8,406 kg
4 - 21.0" / 533.4 mm above water torpedoes, 4 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:
Belt 12.00" / 305 mm, upper belt 2.00" / 51 mm, end belts 3.50" / 89 mm
Belts cover 94 % of normal area
Main turrets 12.00" / 305 mm, 2nd casemates 4.00" / 102 mm
AA gun shields 1.00" / 25 mm, Light gun shields 1.00" / 25 mm
Armour deck 2.50" / 64 mm, Conning tower 14.00" / 356 mm
Torpedo bulkhead 2.00" / 51 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 123,643 shp / 92,238 Kw = 28.00 kts
Range 10,000nm at 18.00 kts

Complement:
1,568 - 2,038

Cost:
£6.360 million / $25.441 million

Distribution of weights at normal displacement:
Armament: 2,317 tons, 5.0 %
Armour: 12,292 tons, 26.8 %
Belts: 3,856 tons, 8.4 %, Armament: 4,016 tons, 8.7 %, Armour Deck: 2,838 tons, 6.2 %
Conning Tower: 389 tons, 0.8 %, Torpedo bulkhead: 1,193 tons, 2.6 %
Machinery: 4,607 tons, 10.0 %
Hull, fittings & equipment: 17,612 tons, 38.4 %
Fuel, ammunition & stores: 8,888 tons, 19.4 %
Miscellaneous weights: 200 tons, 0.4 %

Metacentric height 7.5

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: 48,906 lbs / 22,183 Kg = 34.4 x 14.2 " / 360 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 6.5
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 54 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.47
Relative quality as seaboat: 1.09

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.40
Hull speed coefficient 'M': 6.84
'Natural speed' for length: 28.28 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: 90.8 %
Relative accommodation and working space: 149.4 %
(Average = 100%)
Displacement factor: 114 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.03
(Structure weight / hull surface area: 209 lbs / square foot or 1,022 Kg / square metre)
Relative longitudinal hull strength: 1.02
(for 20.70 ft / 6.31 m average freeboard, freeboard adjustment 0.16 ft)
Relative composite hull strength: 1.02


Nagato, Japan Senkan 1937 Rebuild laid down 1916 (Engine 1937)

Displacement:
38,864 t light; 40,868 t standard; 45,915 t normal; 49,954 t full load

Dimensions: Length overall / water x beam x draught
809.57 ft / 800.00 ft x 97.00 ft (Bulges 108.00 ft) x 31.00 ft (normal load)
246.76 m / 243.84 m x 29.57 m (Bulges 32.92 m) x 9.45 m

Armament:
8 - 16.14" / 410 mm guns (4x2 guns), 1,763.70lbs / 800.00kg shells, 1933 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
20 - 5.00" / 127 mm guns in single mounts, 55.00lbs / 24.95kg shells, 1932 Model
Quick firing guns in casemate mounts
on side, all amidships
20 guns in hull casemates - Limited use in heavy seas
16 - 4.13" / 105 mm guns (8x2 guns), 34.00lbs / 15.42kg shells, 1932 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread, all raised mounts
24 - 1.97" / 50.0 mm guns (12x2 guns), 4.00lbs / 1.81kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 6 raised mounts
24 - 0.98" / 25.0 mm guns (8x3 guns), 0.57lbs / 0.26kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 15,863 lbs / 7,195 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 15.0" / 381 mm 490.00 ft / 149.35 m 12.00 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 94% of normal length

- Torpedo Bulkhead and Bulges:
2.00" / 51 mm 490.00 ft / 149.35 m 30.00 ft / 9.14 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 18.0" / 457 mm 10.0" / 254 mm 14.0" / 356 mm
2nd: 4.00" / 102 mm - 4.00" / 102 mm
3rd: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
4th: 1.00" / 25 mm - -
5th: 1.00" / 25 mm - -

- Armour deck: 5.75" / 146 mm, Conning tower: 18.00" / 457 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 140,000 shp / 104,440 Kw = 28.91 kts
Range 11,002nm at 18.00 kts
Bunker at max displacement = 9,086 tons

Complement:
1,567 - 2,038

Cost:
£6.335 million / $25.340 million

Distribution of weights at normal displacement:
Armament: 2,343 tons, 5.1%
Armour: 15,316 tons, 33.4%
- Belts: 3,797 tons, 8.3%
- Torpedo bulkhead: 1,088 tons, 2.4%
- Armament: 3,897 tons, 8.5%
- Armour Deck: 6,037 tons, 13.1%
- Conning Tower: 497 tons, 1.1%
Machinery: 3,880 tons, 8.5%
Hull, fittings & equipment: 16,525 tons, 36.0%
Fuel, ammunition & stores: 7,051 tons, 15.4%
Miscellaneous weights: 800 tons, 1.7%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
63,028 lbs / 28,589 Kg = 30.0 x 16.1 " / 410 mm shells or 9.9 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 6.1 ft / 1.9 m
Roll period: 18.3 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.600
Length to Beam Ratio: 7.41 : 1
'Natural speed' for length: 28.28 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 21.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.94 ft / 7.60 m
- Forecastle (20%): 21.94 ft / 6.69 m
- Mid (73%): 21.94 ft / 6.69 m
- Quarterdeck (15%): 14.94 ft / 4.55 m
- Stern: 14.94 ft / 4.55 m
- Average freeboard: 20.70 ft / 6.31 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 85.9%
- Above water (accommodation/working, high = better): 146.8%
Waterplane Area: 56,755 Square feet or 5,273 Square metres
Displacement factor (Displacement / loading): 108%
Structure weight / hull surface area: 201 lbs/sq ft or 983 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.03
- Longitudinal: 1.00
- Overall: 1.01
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

Spring Sharp 2.01 Data:
[Edit 11/21: Minor cosmetic change. RA thought that the stem height was a bit extreme compared with the rest of the ship. "Tends to be wet forward." So? If the sailors do not like it they can always get a special land job cleaning the showers and toilets.]
:-)
[Edit 12/12: Erased Kii from history. Class is now known as Okayama class]



Okayama, Japan Senkan laid down 1924
Class cancelled

Displacement:
38,048 t light; 39,925 t standard; 44,006 t normal; 47,272 t full load

Dimensions: Length overall / water x beam x draught
813.17 ft / 800.00 ft x 96.00 ft x 35.00 ft (normal load)
247.86 m / 243.84 m x 29.26 m x 10.67 m

Armament:
8 - 16.14" / 410 mm guns (4x2 guns), 2,300.00lbs / 1,043.26kg shells, 1923 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 5.12" / 130 mm guns (8x2 guns), 70.00lbs / 31.75kg shells, 1921 Model
Quick firing guns in turrets (on barbettes)
on side, all amidships, 4 raised mounts - superfiring
24 - 1.97" / 50.0 mm guns (12x2 guns), 4.00lbs / 1.81kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 6 raised mounts
48 - 0.98" / 25.0 mm guns (16x3 guns), 0.57lbs / 0.26kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 19,644 lbs / 8,910 kg
Shells per gun, main battery: 90

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 14.4" / 366 mm 481.50 ft / 146.76 m 12.20 ft / 3.72 m
Ends: Unarmoured
Upper: 1.50" / 38 mm 481.50 ft / 146.76 m 15.00 ft / 4.57 m
Main Belt covers 93 % of normal length

- Torpedo Bulkhead:
2.00" / 51 mm 481.50 ft / 146.76 m 33.00 ft / 10.06 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 12.0" / 305 mm 10.0" / 254 mm 12.0" / 305 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
3rd: 1.00" / 25 mm - -
4th: 1.00" / 25 mm - -

- Armour deck: 6.00" / 152 mm, Conning tower: 14.00" / 356 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 139,899 shp / 104,365 Kw = 29.34 kts
Range 12,303nm at 15.00 kts (Bunkerage = 7,347 tons)

Complement:
1,518 - 1,974

Cost:
£11.955 million / $47.821 million

Distribution of weights at normal displacement:
Armament: 2,251 tons, 5.1 %
Armour: 15,056 tons, 34.2 %
- Belts: 4,111 tons, 9.3 %
- Torpedo bulkhead: 1,176 tons, 2.7 %
- Armament: 3,314 tons, 7.5 %
- Armour Deck: 6,079 tons, 13.8 %
- Conning Tower: 376 tons, 0.9 %
Machinery: 4,608 tons, 10.5 %
Hull, fittings & equipment: 15,933 tons, 36.2 %
Fuel, ammunition & stores: 5,959 tons, 13.5 %
Miscellaneous weights: 200 tons, 0.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
40,898 lbs / 18,551 Kg = 19.4 x 16.1 " / 410 mm shells or 5.3 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 5.2 ft / 1.6 m
Roll period: 17.7 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.84
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.573
Length to Beam Ratio: 8.33 : 1
'Natural speed' for length: 28.28 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 21.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.50 ft / 8.08 m
- Forecastle (20 %): 19.30 ft / 5.88 m
- Mid (50 %): 19.30 ft / 5.88 m
- Quarterdeck (15 %): 19.30 ft / 5.88 m
- Stern: 19.30 ft / 5.88 m
- Average freeboard: 19.88 ft / 6.06 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92.6 %
- Above water (accommodation/working, high = better): 132.6 %
Waterplane Area: 54,767 Square feet or 5,088 Square metres
Displacement factor (Displacement / loading): 104 %
Structure weight / hull surface area: 200 lbs/sq ft or 978 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.11
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
main guns fitted with liners restricting the bore to 380mm.
Main belt is 14 inch + 0.4 steel plate backing. Main belt inclined at 15 degrees.



Original Spring Sharp Data:

Okayama, Japan Battleship laid down 1924

Displacement:
37,544 t light; 39,924 t standard; 43,992 t normal; 47,070 t full load
Loading submergence 1,511 tons/feet

Dimensions:
800.00 ft x 96.00 ft x 35.00 ft (normal load)
243.84 m x 29.26 m x 10.67 m

Armament:
8 - 41.0 cm (16.14") / 50 cal Model 1923 guns in 4 Main turrets x 2 guns, 2 superfiring turrets; B and X
Aft turrets separated by engine room
16 - 13.0 cm (5.12") / 50 cal Model 1921 guns in 8 2nd turrets x 2 guns
24 - 50 mm (1.97") / 60 cal Model 1918 AA guns
48 - 25 mm (0.98") / 60 cal Model 1918 light AA guns
Weight of broadside 18,010 lbs / 8,169 kg

Armour:
Belt 14.00" / 356 mm + 0.40 / 10mm steel plate backing inclined at 10 degrees, decapping pate 1.50" / 38 mm (= upper belt), ends unarmoured
Belts cover 95 % of normal area
Main turrets 12.00" / 305 mm, 2nd turrets 2.00" / 51 mm
AA gun shields 1.00" / 25 mm, Light gun shields 1.00" / 25 mm
Armour deck 6.00" / 152 mm, Conning tower 14.00" / 356 mm
Torpedo bulkhead 2.00" / 51 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 140,000 shp / 104,440 Kw = 29.34 kts
Range 12,000nm at 15.00 kts

Complement:
60 Officers, 1890 other rank (1,518 - 1,974)

Cost:
£11.902 million / $47.609 million

Distribution of weights at normal displacement:
Armament: 2,251 tons, 5.1 %
Armour: 15,031 tons, 34.2 %
Belts: 3,723 tons, 8.5 %, Armament: 3,716 tons, 8.4 %, Armour Deck: 5,869 tons, 13.3 %
Conning Tower: 378 tons, 0.9 %, Torpedo bulkhead: 1,347 tons, 3.1 %
Machinery: 4,611 tons, 10.5 %
Hull, fittings & equipment: 15,550 tons, 35.3 %
Fuel, ammunition & stores: 6,448 tons, 14.7 %
Miscellaneous weights: 100 tons, 0.2 %

Metacentric height 5.1

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent
main guns fitted with liners restricting the bore to 380mm.

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.05
Shellfire needed to sink: 40,236 lbs / 18,251 Kg = 19.1 x 16.1 " / 410 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 5.2
(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: 0.69
Relative quality as seaboat: 1.03

Hull form characteristics:
Block coefficient: 0.573
Sharpness coefficient: 0.38
Hull speed coefficient 'M': 6.93
'Natural speed' for length: 28.28 kts
Power going to wave formation at top speed: 49 %
Trim: 49
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 93.8 %
Relative accommodation and working space: 132.0 %
(Average = 100%)
Displacement factor: 104 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.99
(Structure weight / hull surface area: 198 lbs / square foot or 965 Kg / square metre)
Relative longitudinal hull strength: 1.10
(for 19.90 ft / 6.07 m average freeboard, freeboard adjustment -0.47 ft)
Relative composite hull strength: 1.00

SS2 version (added 1/29/12)

Izumo no Okuni, Japan Battleship laid down 1934


Displacement:
46,058 t light; 48,415 t standard; 51,660 t normal; 54,255 t full load

Dimensions: Length overall / water x beam x draught
820.00 ft / 820.00 ft x 100.00 ft (Bulges 110.00 ft) x 34.00 ft (normal load)
249.94 m / 249.94 m x 30.48 m (Bulges 33.53 m) x 10.36 m

Armament:
9 - 14.96" / 380 mm guns (3x3 guns), 2,000.00lbs / 907.18kg shells, 1934 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 2 raised mounts - superfiring
26 - 5.00" / 127 mm guns (13x2 guns), 55.12lbs / 25.00kg shells, 1934 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, 9 raised mounts - superfiring
32 - 1.57" / 40.0 mm guns (4x8 guns), 2.00lbs / 0.91kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
24 - 0.98" / 25.0 mm guns (8x3 guns), 0.57lbs / 0.26kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
56 - 0.52" / 13.2 mm guns (22 mounts), 0.09lbs / 0.04kg shells, 1934 Model
Breech loading guns in deck mounts
on side, evenly spread, 18 raised mounts
Weight of broadside 19,516 lbs / 8,852 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 17.9" / 455 mm 440.00 ft / 134.11 m 15.00 ft / 4.57 m
Ends: Unarmoured
Upper: 2.00" / 51 mm 440.00 ft / 134.11 m 20.00 ft / 6.10 m
Main Belt covers 83% of normal length

- Torpedo Bulkhead and Bulges:
2.75" / 70 mm 440.00 ft / 134.11 m 34.00 ft / 10.36 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 26.0" / 660 mm 14.0" / 356 mm 18.0" / 457 mm
2nd: 3.00" / 76 mm 1.00" / 25 mm 2.00" / 51 mm
3rd: 1.00" / 25 mm 1.00" / 25 mm -
4th: 1.00" / 25 mm 1.00" / 25 mm -
5th: 0.50" / 13 mm 0.50" / 13 mm -

- Armour deck: 6.50" / 165 mm, Conning tower: 20.00" / 508 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 135,192 shp / 100,853 Kw = 29.25 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 5,840 tons

Complement:
1,713 - 2,227

Cost:
£19.231 million / $76.925 million

Distribution of weights at normal displacement:
Armament: 2,096 tons, 4.1%
Armour: 20,035 tons, 38.8%
- Belts: 5,996 tons, 11.6%
- Torpedo bulkhead: 1,522 tons, 2.9%
- Armament: 4,478 tons, 8.7%
- Armour Deck: 7,442 tons, 14.4%
- Conning Tower: 598 tons, 1.2%
Machinery: 3,889 tons, 7.5%
Hull, fittings & equipment: 19,037 tons, 36.9%
Fuel, ammunition & stores: 5,602 tons, 10.8%
Miscellaneous weights: 1,000 tons, 1.9%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
79,404 lbs / 36,017 Kg = 47.4 x 15.0 " / 380 mm shells or 14.1 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 5.6 ft / 1.7 m
Roll period: 19.6 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.63
Seaboat quality (Average = 1.00): 1.07

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.590
Length to Beam Ratio: 7.45 : 1
'Natural speed' for length: 33.13 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27.20 ft / 8.29 m
- Forecastle (32%): 17.50 ft / 5.33 m
- Mid (43%): 22.40 ft / 6.83 m
- Quarterdeck (7%): 15.50 ft / 4.72 m (22.40 ft / 6.83 m before break)
- Stern: 15.50 ft / 4.72 m
- Average freeboard: 21.32 ft / 6.50 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 73.2%
- Above water (accommodation/working, high = better): 151.1%
Waterplane Area: 61,885 Square feet or 5,749 Square metres
Displacement factor (Displacement / loading): 113%
Structure weight / hull surface area: 216 lbs/sq ft or 1,055 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.13
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent








Izumo no Okuni Class Battleships.

BB-28 Okuni, projected for 1933/1934
BB-29 Inahime, projected for 1933/1934
BB-30 Nene, projected for 1933/1934
Expected completion 1937/1938.

Estimated standard displacement: 60,000 tons
Estimated dimensions: 820x108x31 feet
Main Armament: 380 mm guns
Secondary: 130 mm DP guns
Speed: 28 knots
Range: 15,000 nm at 15 knots

All further data classified.[/FONT][/COLOR]



Final Data (not known to the public)

Izumo no Okuni, Japan Battleship laid down 1934

Displacement:
46,058 t light; 48,666 t standard; 52,211 t normal; 55,047 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(838.70 ft / 820.00 ft) x 100.00 ft (Bulges 110.00 ft) x (34.00 / 35.62 ft)
(255.64 m / 249.94 m) x 30.48 m (Bulges 33.53 m) x (10.36 / 10.86 m)

Armament:
9 - 14.96" / 380 mm 45.0 cal guns - 1,999.99lbs / 907.18kg shells, 120 per gun
Breech loading guns in turret on barbette mounts, 1933 Model
3 x 3-gun mounts on centreline ends, majority forward
1 raised mount - superfiring
26 - 5.00" / 127 mm 40.0 cal guns - 55.12lbs / 25.00kg shells, 400 per gun
Dual purpose guns in deck and hoist mounts, 1933 Model
10 x 2-gun mounts on sides, evenly spread
6 raised mounts
3 x 2-gun mounts on centreline ends, majority aft
3 double raised mounts
32 - 1.57" / 40.0 mm 39.0 cal guns - 2.01lbs / 0.91kg shells, 800 per gun
Anti-air guns in deck mounts, 1934 Model
4 x 2 row octuple mounts on sides, evenly spread
4 double raised mounts
24 - 0.98" / 25.0 mm 60.0 cal guns - 0.57lbs / 0.26kg shells, 1,500 per gun
Anti-air guns in deck mounts, 1933 Model
8 x Triple mounts on sides, evenly spread
4 raised mounts
56 - 0.52" / 13.2 mm 70.0 cal guns - 0.09lbs / 0.04kg shells, 2,000 per gun
Machine guns in deck mounts, 1930 Model
16 x Twin mounts on sides, evenly spread
6 x Quad mounts on sides, evenly spread
6 raised mounts
Weight of broadside 19,516 lbs / 8,852 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 17.9" / 454 mm 440.00 ft / 134.11 m 15.75 ft / 4.80 m
Ends: Unarmoured
Upper: 2.00" / 51 mm 440.00 ft / 134.11 m 20.00 ft / 6.10 m
Main Belt covers 83% of normal length
Main Belt inclined 20.00 degrees (positive = in)

- Torpedo Bulkhead - Strengthened structural bulkheads:
3.50" / 89 mm 440.00 ft / 134.11 m 34.00 ft / 10.36 m
Beam between torpedo bulkheads 90.00 ft / 27.43 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 26.0" / 660 mm 14.0" / 356 mm 20.0" / 508 mm
2nd: 3.00" / 76 mm 1.00" / 25 mm 2.00" / 51 mm
3rd: 1.00" / 25 mm 1.00" / 25 mm -
4th: 1.00" / 25 mm 1.00" / 25 mm -
5th: 0.50" / 13 mm 0.50" / 13 mm -

- Armoured deck - multiple decks:
For and Aft decks: 8.00" / 203 mm
Forecastle: 3.00" / 76 mm Quarter deck: 5.00" / 127 mm

- Conning towers: Forward 20.00" / 508 mm, Aft 20.00" / 508 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 159,797 shp / 119,209 Kw = 30.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 6,381 tons

Complement:
1,726 - 2,245

Cost:
£18.708 million / $74.832 million

Distribution of weights at normal displacement:
Armament: 3,503 tons, 6.7%
- Guns: 3,503 tons, 6.7%
Armour: 21,977 tons, 42.1%
- Belts: 6,214 tons, 11.9%
- Torpedo bulkhead: 1,937 tons, 3.7%
- Armament: 4,611 tons, 8.8%
- Armour Deck: 8,011 tons, 15.3%
- Conning Towers: 1,204 tons, 2.3%
Machinery: 4,597 tons, 8.8%
Hull, fittings & equipment: 15,147 tons, 29.0%
Fuel, ammunition & stores: 6,153 tons, 11.8%
Miscellaneous weights: 835 tons, 1.6%
- Hull below water: 50 tons
- Hull above water: 65 tons
- On freeboard deck: 460 tons
- Above deck: 260 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
82,454 lbs / 37,401 Kg = 49.2 x 15.0 " / 380 mm shells or 15.3 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 6.1 ft / 1.9 m
Roll period: 18.7 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.57
Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:
Hull has low quarterdeck ,
an extended bulbous bow and small transom stern
Block coefficient (normal/deep): 0.596 / 0.600
Length to Beam Ratio: 7.45 : 1
'Natural speed' for length: 30.95 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 32.00%, 27.20 ft / 8.29 m, 17.50 ft / 5.33 m
- Forward deck: 11.00%, 17.50 ft / 5.33 m, 22.40 ft / 6.83 m
- Aft deck: 50.00%, 22.40 ft / 6.83 m, 22.40 ft / 6.83 m
- Quarter deck: 7.00%, 15.50 ft / 4.72 m, 15.50 ft / 4.72 m
- Average freeboard: 21.32 ft / 6.50 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 64.2%
- Above water (accommodation/working, high = better): 148.4%
Waterplane Area: 61,252 Square feet or 5,690 Square metres
Displacement factor (Displacement / loading): 112%
Structure weight / hull surface area: 213 lbs/sq ft or 1,038 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.15
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room


- Official standard displacement 40,000 tons
- Ships: 4. Okuni, Inahime, Nouhime, Oichi.
- 3 secondary turrets superfiring the main guns, remaining guns five on each side (arranged high-low-high-low-high)
- 13.2mm - 4x4 mounts (all raised) and 10x2 mounts (2 raised)
- 60 APC - 2100 lbs and 60 HE - 1900 lbs. Also able to use 'San Shiki' AA projectiles (1900 lbs)

Features:
- Main belt is 17 inches of Kaisanshi ('Result 3-4') Steel on 0.875 STS plate (used upper belt to sim). Main belt inclined at 20 degrees. 2 inch decapping plate.
- Bulbous bow and improved fitting of the shaft brackets and the bilge keels for reduction in the hull resistance, resulting in higher speed and better fuel efficiency (both > than what SS gives).
- Transom stern for the use of the 'Hain mat' system.
- Type 93 Fire Control System, superior to any other FCS in the world.
- High quality optics and 15m rangefinders allow for exceptional range estimation and a high degree of accuracy in shooting.
- 38cm/50 caliber Type 93 main gun, same as on the Tachibana class. The gun is an improved version of the 38cm/45 caliber Type 85 gun used aboard the monitor Hideyoshi Hashiba. Range greater than 40 kilometers.
- Semi-automatic loading system for the 5 inch/40 caliber Type 93 secondary gun.

Miscellaneous weight
7 Planes => 175 tons
1 Crane + 2 catapults => 35 tons
Staff Facilities => 100 tons
Improvements to communication system => 10 tons
Improvements to flooding and pumping system => 10 tons
Improvements to generators => 10 tons
Air conditioning system => 20 tons
Superior Fire Control System => total 160 tons
----- fire control center (including Type 91 'Sokutekiban' and Type 91 'Shagekiban', etc.) => 47 tons
----- 1x 15m foretop rotating dome + Type 91 low angle 'Hoiban' director => 10 tons
----- 3x 15m main turrets => 18 tons
----- 1x 10.5m aft control center in rotating dome+ Type 91 low angle 'Hoiban' director => 8 tons
----- 2x 4.5m for secondary armament => 8 tons
----- 12x 4.5m secondary turrets => 24 tons
----- 4x 1.5m 2pdr armament => 12 tons
----- 4x MG control tower 25mm and 13.2mm => 8 tons
----- The new and improved (size-wise) Tomoe Tele Raypointer 25 tons.
Superior weapons loading system => 110 tons
----- 38cm => 90 tons
----- 5 inch => 12 tons
----- 2pdr => 5 tons
----- 25mm => 2 tons
----- 13.2mm => 1 tons
Superior weapon elevation and train control => 140 tons
----- 38cm => 140 tons
----- 5 inch => 22 tons
----- 2pdr => 5 tons
----- 25mm => 2 tons
----- 13.2mm => 1 tons
Hain Mat System => 20 tons
Miscellaneous => 45 tons
Total => 835 tons

SS2 version (added 1/29/12)

Yamato, Japan Battleship laid down 1936

[SIZE=1]Picture is a slightly modified version of CanisD's picture of his hypothetical fast Yamato. Used with his permission.[/SIZE]

Displacement:
75,000 t light; 79,315 t standard; 85,784 t normal; 90,960 t full load

Dimensions: Length overall / water x beam x draught
962.10 ft / 940.00 ft x 124.00 ft (Bulges 134.00 ft) x 37.00 ft (normal load)
293.25 m / 286.51 m x 37.80 m (Bulges 40.84 m) x 11.28 m

Armament:
9 - 18.11" / 460 mm guns (3x3 guns), 3,913.21lbs / 1,775.00kg shells, 1936 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
6 - 5.91" / 150 mm guns (2x3 guns), 105.00lbs / 47.63kg shells, 1936 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, all raised mounts
40 - 5.00" / 127 mm guns (20x2 guns), 55.12lbs / 25.00kg shells, 1936 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
48 - 1.57" / 40.0 mm guns (6x8 guns), 2.00lbs / 0.91kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
200 - 0.98" / 25.0 mm guns (58 mounts), 0.57lbs / 0.26kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 76 raised guns
Weight of broadside 38,264 lbs / 17,356 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 17.9" / 455 mm 520.00 ft / 158.50 m 16.00 ft / 4.88 m
Ends: 14.0" / 356 mm 240.00 ft / 73.15 m 8.00 ft / 2.44 m
180.00 ft / 54.86 m Unarmoured ends
Upper: 2.25" / 57 mm 520.00 ft / 158.50 m 20.00 ft / 6.10 m
Main Belt covers 85% of normal length

- Torpedo Bulkhead and Bulges:
3.00" / 76 mm 520.00 ft / 158.50 m 50.00 ft / 15.24 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 26.0" / 660 mm 15.0" / 381 mm 20.0" / 508 mm
2nd: 6.00" / 152 mm 3.00" / 76 mm 4.00" / 102 mm
3rd: 3.00" / 76 mm 1.00" / 25 mm 2.00" / 51 mm
4th: 1.00" / 25 mm 1.00" / 25 mm -
5th: 0.50" / 13 mm 0.50" / 13 mm -

- Armour deck: 8.50" / 216 mm, Conning tower: 20.00" / 508 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 201,634 shp / 150,419 Kw = 30.00 kts
Range 10,000nm at 18.00 kts
Bunker at max displacement = 11,645 tons

Complement:
2,506 - 3,258

Cost:
£34.646 million / $138.585 million

Distribution of weights at normal displacement:
Armament: 3,755 tons, 4.4%
Armour: 33,267 tons, 38.8%
- Belts: 8,660 tons, 10.1%
- Torpedo bulkhead: 2,886 tons, 3.4%
- Armament: 6,313 tons, 7.4%
- Armour Deck: 14,570 tons, 17.0%
- Conning Tower: 838 tons, 1.0%
Machinery: 5,658 tons, 6.6%
Hull, fittings & equipment: 31,071 tons, 36.2%
Fuel, ammunition & stores: 10,785 tons, 12.6%
Miscellaneous weights: 1,250 tons, 1.5%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
138,593 lbs / 62,865 Kg = 46.7 x 18.1 " / 460 mm shells or 27.8 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 9.5 ft / 2.9 m
Roll period: 18.3 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.50
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.644
Length to Beam Ratio: 7.01 : 1
'Natural speed' for length: 35.46 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 35.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.70 ft / 8.75 m
- Forecastle (31%): 18.90 ft / 5.76 m
- Mid (43%): 23.80 ft / 7.25 m
- Quarterdeck (7%): 16.90 ft / 5.15 m (23.80 ft / 7.25 m before break)
- Stern: 16.90 ft / 5.15 m
- Average freeboard: 22.72 ft / 6.92 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 68.9%
- Above water (accommodation/working, high = better): 164.3%
Waterplane Area: 92,654 Square feet or 8,608 Square metres
Displacement factor (Displacement / loading): 113%
Structure weight / hull surface area: 253 lbs/sq ft or 1,233 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.01
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent

200 25mm guns to sim 32x3 25mm + 26x4 13.2mm

Actual shells per gun
46cm = 100 rounds per gun (1957 tons total)
15cm = 150 rounds per gun (53 tons total)
5" = 350 rounds per gun (429 tons total)
40mm = 1500 rounds per gun (80 tons total)
25mm = 2000 rounds per gun (61 tons total)
13.2mm = 4000 rounds per gun (20 tons total)
2599 tons magazines + 1 ton misc

- 40 tons for 2 catapults + 1 crane
- 150 tons for 6 floatplanes
- 100 tons for flagship facilities
- 50 tons for radar systems
- 50 tons for fire control
- 30 tons for Hydrophone room and Type 0 sonar
- 150 tons for damage control and fire suppression systems
- 150 tons emergency diesel generators
- 60 tons for air condition system
- 193 tons for degaussing coils
- 20 tons for Hain Mat System
- 1 ton for additional ammunition
- 256 tons for mount improvements

Total 1250 tons



Yamato no Kamatari Class Battleships.

BB-31 Yamato no Kamatari, projected for 1936
BB-32 Musashi no Toukichirou, projected for 1936
BB-33 Shinano no Ryuen, projected for 1936/1937
BB-34 Echizen no Megumi, projected for 1936/1937
Expected completion unknown.

Estimated standard displacement: about 80,000 tons
Estimated dimensions: 940x130x35 feet
Main Armament: 460 mm guns
Secondary: 127 mm DP guns
Speed: 29 knots
Range: 10,000 nm at 15 knots

All further data classified.[/FONT][/COLOR]



Battleship Kamatari moving out of the fog and into the history books...

[SIZE=1]Snapshot from the Anime Zipang[/SIZE]


Honjou Kamatari, Japan Senkan laid down 1936

Displacement:
75,000 t light; 79,877 t standard; 86,935 t normal; 92,581 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(962.10 ft / 940.00 ft) x 124.00 ft (Bulges 134.00 ft) x (37.00 / 39.15 ft)
(293.25 m / 286.51 m) x 37.80 m (Bulges 40.84 m) x (11.28 / 11.93 m)

Armament:
9 - 18.11" / 460 mm 45.0 cal guns - 3,913.21lbs / 1,775.00kg shells, 120 per gun
Breech loading guns in turret on barbette mounts, 1936 Model
3 x 3-gun mounts on centreline ends, majority forward
1 raised mount - superfiring
6 - 5.91" / 150 mm 45.0 cal guns - 105.01lbs / 47.63kg shells, 200 per gun
Breech loading guns in turret on barbette mounts, 1936 Model
1 x 3-gun mount on centreline, aft deck centre
1 raised mount
1 x 3-gun mount on centreline, forward deck centre
1 double raised mount
40 - 5.00" / 127 mm 40.0 cal guns - 55.12lbs / 25.00kg shells, 450 per gun
Dual purpose guns in deck and hoist mounts, 1936 Model
10 x 2-gun mounts on sides, evenly spread
10 raised mounts
10 x 2-gun mounts on sides, evenly spread
10 double raised mounts
48 - 1.57" / 40.0 mm 39.0 cal guns - 2.01lbs / 0.91kg shells, 1,500 per gun
Anti-air guns in deck mounts, 1936 Model
6 x 2 row octuple mounts on sides, evenly spread
6 raised mounts
96 - 0.98" / 25.0 mm 60 cal guns - 0.57lbs / 0.26kg shells, 2500 rounds
Anti-air guns in deck mounts, 1933 Model
32 x Triple mounts on sides, evenly spread
12 raised mounts
104 - 0.52" / 13.2mm 70 cal guns - 0.09lbs / 0.04kg shells, 4000 rounds
Machine guns in deck mounts, 1930 Model
26 x Quad mounts on sides, evenly spread
10 raised mounts
Weight of broadside 38,247 lbs / 17,349 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 17.9" / 454 mm 520.00 ft / 158.50 m 16.00 ft / 4.88 m
Ends: 14.0" / 356 mm 240.00 ft / 73.15 m 8.00 ft / 2.44 m
180.00 ft / 54.86 m Unarmoured ends
Upper: 2.25" / 57 mm 520.00 ft / 158.50 m 20.00 ft / 6.10 m
Main Belt covers 85% of normal length
Main Belt inclined 20.00 degrees (positive = in)

- Torpedo Bulkhead - Strengthened structural bulkheads:
3.00" / 76 mm 520.00 ft / 158.50 m 50.00 ft / 15.24 m
Beam between torpedo bulkheads 110.00 ft / 33.53 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 26.0" / 660 mm 15.0" / 381 mm 20.0" / 508 mm
2nd: 6.00" / 152 mm 3.00" / 76 mm 4.00" / 102 mm
3rd: 3.00" / 76 mm 1.00" / 25 mm 2.00" / 51 mm
4th: 1.00" / 25 mm 1.00" / 25 mm -
5th: 1.00" / 25 mm 1.00" / 25 mm -
6th: 0.50" / 25 mm 0.50" / 25 mm -

- Armoured deck - multiple decks:
For and Aft decks: 10.00" / 254 mm
Forecastle: 4.00" / 102 mm Quarter deck: 6.00" / 152 mm

- Conning towers: Forward 20.00" / 508 mm, Aft 20.00" / 508 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 216,623 shp / 161,601 Kw = 30.00 kts
Range 10,000nm at 18.00 kts
Bunker at max displacement = 12,705 tons

Complement:
2,530 - 3,290

Cost:
£33.046 million / $132.183 million

Distribution of weights at normal displacement:
Armament: 5,883 tons, 6.8%
- Guns: 5,883 tons, 6.8%
Armour: 35,358 tons, 40.7%
- Belts: 8,643 tons, 9.9%
- Torpedo bulkhead: 2,886 tons, 3.3%
- Armament: 6,953 tons, 8.0%
- Armour Deck: 15,184 tons, 17.5%
- Conning Towers: 1,691 tons, 1.9%
Machinery: 6,078 tons, 7.0%
Hull, fittings & equipment: 26,591 tons, 30.6%
Fuel, ammunition & stores: 11,935 tons, 13.7%
Miscellaneous weights: 1,090 tons, 1.3%
- Hull below water: 290 tons
- Hull above water: 200 tons
- On freeboard deck: 400 tons
- Above deck: 200 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
148,724 lbs / 67,460 Kg = 50.1 x 18.1 " / 460 mm shells or 30.8 torpedoes
Stability (Unstable if below 1.00): 1.22
Metacentric height 9.9 ft / 3.0 m
Roll period: 17.9 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.51
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has low quarterdeck ,
an extended bulbous bow and small transom stern
Block coefficient (normal/deep): 0.653 / 0.657
Length to Beam Ratio: 7.01 : 1
'Natural speed' for length: 33.13 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 35.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 31.00%, 28.70 ft / 8.75 m, 18.90 ft / 5.76 m
- Forward deck: 12.00%, 18.90 ft / 5.76 m, 23.80 ft / 7.25 m
- Aft deck: 50.00%, 23.80 ft / 7.25 m, 23.80 ft / 7.25 m
- Quarter deck: 7.00%, 16.90 ft / 5.15 m, 16.90 ft / 5.15 m
- Average freeboard: 22.72 ft / 6.92 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 61.9%
- Above water (accommodation/working, high = better): 161.3%
Waterplane Area: 91,855 Square feet or 8,534 Square metres
Displacement factor (Displacement / loading): 116%
Structure weight / hull surface area: 260 lbs/sq ft or 1,270 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.03
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room


- 17" Kai34 on 0.875" STS plate inclined 20 degrees. 2.25" STS outer hull shell (decapping plate (=upper belt)).
- Bulbous bow and improved fitting of the shaft brackets and the bilge keels for reduction in the hull resistance, resulting in higher speed and better fuel efficiency.
- 1.25-2" CNC and DS forecastle deck. 8-9" MNC armored deck over the vitals, 13.4" VH in front of A turret and behind X turret (sloped), 15" perforated MNC plates over the boiler uptakes. 2-3.15" CNC floors of the ammunition magazines.
- Main rudder room protected by armored box with 16" sides and 8" MNC top. Auxiliary rudder room protected by armored box with 12" sides and 8" MNC top. (both simmed using ends belt)
- 50 APC - 1825 kg and 50 HEH - 1725 kg. Also able to use SSA 'San Shiki' AA projectiles (1600 kg) and HEL projectiles (1400 kg).
- Transom stern for the use of the 'Hain mat' system.
- Type 93 Fire Control System, superior to any other FCS in the world.
- High quality optics and 15m rangefinder allow for exceptional range estimation and a high degree of accuracy in shooting.
- Semi-automatic loading system for the 5 inch/40 caliber Type 93 secondary gun.

Oshima, Japan Battleship laid down 1944
Ships: 2. Oshima, Aki.

Displacement:
94,000 t light; 101,132 t standard; 108,149 t normal; 113,762 t full load

Dimensions: Length overall / water x beam x draught
1,043.71 ft / 1,020.00 ft x 130.00 ft (Bulges 140.00 ft) x 40.00 ft (normal load)
318.12 m / 310.90 m x 39.62 m (Bulges 42.67 m) x 12.19 m

Armament:
12 - 18.11" / 460 mm guns (4x3 guns), 3,897.77lbs / 1,768.00kg shells, 1944 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
40 - 5.00" / 127 mm guns (20x2 guns), 55.12lbs / 25.00kg shells, 1944 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
40 - 2.95" / 75.0 mm guns (20x2 guns), 12.00lbs / 5.44kg shells, 1944 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread, 12 raised mounts
72 - 1.57" / 40.0 mm guns (12x6 guns), 2.00lbs / 0.91kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
208 - 0.98" / 25.0 mm guns (52x4 guns), 0.57lbs / 0.26kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 12 raised mounts
Weight of broadside 49,721 lbs / 22,553 kg
Shells per gun, main battery: 177
336 - 4.7" / 120 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 17.9" / 455 mm 600.00 ft / 182.88 m 17.00 ft / 5.18 m
Ends: 14.0" / 356 mm 140.00 ft / 42.67 m 8.00 ft / 2.44 m
280.00 ft / 85.34 m Unarmoured ends
Upper: 2.25" / 57 mm 600.00 ft / 182.88 m 23.00 ft / 7.01 m
Main Belt covers 90% of normal length

- Torpedo Bulkhead and Bulges:
3.00" / 76 mm 600.00 ft / 182.88 m 50.00 ft / 15.24 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 26.0" / 660 mm 15.0" / 381 mm 20.0" / 508 mm
2nd: 3.00" / 76 mm 1.00" / 25 mm 2.00" / 51 mm
3rd: 1.00" / 25 mm 1.00" / 25 mm 1.00" / 25 mm
4th: 1.00" / 25 mm 1.00" / 25 mm -
5th: 1.00" / 25 mm 1.00" / 25 mm -

- Armour deck: 9.00" / 229 mm, Conning tower: 20.00" / 508 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 201,732 shp / 150,492 Kw = 29.00 kts
Range 10,000nm at 18.00 kts
Bunker at max displacement = 12,630 tons

Complement:
2,981 - 3,876

Cost:
£54.883 million / $219.533 million

Distribution of weights at normal displacement:
Armament: 4,937 tons, 4.6%
Armour: 41,108 tons, 38.0%
- Belts: 9,928 tons, 9.2%
- Torpedo bulkhead: 3,330 tons, 3.1%
- Armament: 9,016 tons, 8.3%
- Armour Deck: 17,855 tons, 16.5%
- Conning Tower: 978 tons, 0.9%
Machinery: 5,151 tons, 4.8%
Hull, fittings & equipment: 38,803 tons, 35.9%
Fuel, ammunition & stores: 14,149 tons, 13.1%
Miscellaneous weights: 4,000 tons, 3.7%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
171,332 lbs / 77,715 Kg = 57.7 x 18.1 " / 460 mm shells or 34.4 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 9.1 ft / 2.8 m
Roll period: 19.5 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.68
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.663
Length to Beam Ratio: 7.29 : 1
'Natural speed' for length: 36.75 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 35.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.00 ft / 9.45 m
- Forecastle (25%): 21.20 ft / 6.46 m
- Mid (37%): 26.10 ft / 7.96 m
- Quarterdeck (7%): 19.20 ft / 5.85 m (26.10 ft / 7.96 m before break)
- Stern: 19.20 ft / 5.85 m
- Average freeboard: 25.08 ft / 7.64 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 67.6%
- Above water (accommodation/working, high = better): 160.3%
Waterplane Area: 107,238 Square feet or 9,963 Square metres
Displacement factor (Displacement / loading): 114%
Structure weight / hull surface area: 270 lbs/sq ft or 1,316 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.00
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

Actual main gun shell average weight 1775 kg. Simmed as 1768kg in order to get the proper magazine weight since SS doesn't like any decimal numbers with the number of shells.

Actual 25mm mounts: 40x4 (= 160 guns)
12x4 25mm mounts simmed for AA Rocket launcher mount.
12cm Rockets simmed as Torpedoes.

Actual shells per gun
46cm = 120 rounds per gun (3131 tons total)
5" = 500 rounds per gun (735 tons total)
75mm = 1500 rounds per gun (535 tons total)
40mm = 2000 rounds per gun ( 131 tons total)
25mm = 3000 rounds per gun (306 tons total)

94000
- 80 tons for helicopter landing pad.
- 50 tons for 2 helicopters.
- 400 tons for flagship facilities
- 350 tons for fire control and fire control center
- 200 tons for radar systems
- 30 tons for Hydrophone room and Type 0 sonar
- 940 tons for damage control and fire suppression systems
- 235 tons emergency diesel generators
- 940 tons for air condition system
- 209 tons for degaussing coils
- 75 tons for 12x28 12 cm AA Rocket launchers
- 444 for mount improvements
--- 300 tons for 5" mounts
--- 80 tons for 75mm mounts
--- 24 tons for 40mm mounts
--- 40tons for 25mm mounts
- 47 tons for crew comfort.
Total: 4000 tons