Komaki, Japan Large Cruiser laid down 1946
Displacement:
24,860 t light; 26,348 t standard; 30,438 t normal; 33,710 t full load
Dimensions: Length overall / water x beam x draught
809.36 ft / 785.00 ft x 78.00 ft (Bulges 90.00 ft) x 30.00 ft (normal load)
246.69 m / 239.27 m x 23.77 m (Bulges 27.43 m) x 9.14 m
Armament:
10 - 10.00" / 254 mm guns (5x2 guns), 529.11lbs / 240.00kg shells, 1946 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 2 raised mounts - superfiring
32 - 2.95" / 75.0 mm guns (16x2 guns), 12.00lbs / 5.44kg shells, 1946 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread, 8 raised mounts
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, 4 raised mounts
40 - 0.98" / 25.0 mm guns (10x4 guns), 0.57lbs / 0.26kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
16 - 0.98" / 25.0 mm guns (4x4 guns), 0.00lbs / 0.00kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 5,770 lbs / 2,617 kg
Shells per gun, main battery: 265
112 - 4.7" / 120 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 10.0" / 254 mm 510.25 ft / 155.52 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 100% of normal length
- Torpedo Bulkhead and Bulges:
2.00" / 51 mm 510.25 ft / 155.52 m 26.47 ft / 8.07 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.0" / 254 mm 5.00" / 127 mm 9.00" / 229 mm
2nd: 1.00" / 25 mm - 1.00" / 25 mm
3rd: 1.00" / 25 mm 1.00" / 25 mm -
4th: 1.00" / 25 mm 1.00" / 25 mm -
- Armour deck: 4.00" / 102 mm, Conning tower: 3.00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 141,723 shp / 105,726 Kw = 32.50 kts
Range 20,000nm at 15.00 kts
Bunker at max displacement = 7,362 tons
Complement:
1,151 - 1,497
Cost:
£13.847 million / $55.386 million
Distribution of weights at normal displacement:
Armament: 699 tons, 2.3%
Armour: 8,269 tons, 27.2%
- Belts: 2,122 tons, 7.0%
- Torpedo bulkhead: 999 tons, 3.3%
- Armament: 1,937 tons, 6.4%
- Armour Deck: 3,147 tons, 10.3%
- Conning Tower: 63 tons, 0.2%
Machinery: 3,540 tons, 11.6%
Hull, fittings & equipment: 11,152 tons, 36.6%
Fuel, ammunition & stores: 5,578 tons, 18.3%
Miscellaneous weights: 1,200 tons, 3.9%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
53,860 lbs / 24,430 Kg = 107.7 x 10.0 " / 254 mm shells or 8.4 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 4.3 ft / 1.3 m
Roll period: 18.2 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.50
Seaboat quality (Average = 1.00): 1.51
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.503
Length to Beam Ratio: 8.72 : 1
'Natural speed' for length: 32.31 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 37.00 ft / 11.28 m
- Forecastle (20%): 27.00 ft / 8.23 m
- Mid (50%): 27.00 ft / 8.23 m
- Quarterdeck (15%): 27.00 ft / 8.23 m
- Stern: 27.00 ft / 8.23 m
- Average freeboard: 27.80 ft / 8.47 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.6%
- Above water (accommodation/working, high = better): 177.9%
Waterplane Area: 42,529 Square feet or 3,951 Square metres
Displacement factor (Displacement / loading): 137%
Structure weight / hull surface area: 152 lbs/sq ft or 740 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.53
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
4x4 25mm 5th gun mounts simmed for AA Rocket launcher mount.
12cm Rockets simmed as Torpedoes.
Actual shells per gun (879t)
10" = 150 rounds per gun (441 tons total)
75mm = 1500 rounds per gun (320 tons total)
40mm = 2000 rounds per gun (80 tons total)
25mm = 3000 rounds per gun (38 tons total)
1200t
- 200 tons for fire control and fire control center
- 100 tons for radar systems
- 249 tons for damage control and fire suppression systems
- 63 tons emergency diesel generators
- 249 tons for air condition system
- 161 tons for degaussing coils
- 25 tons for 12x28 12 cm AA Rocket launchers
- 86 for mount improvements
--- 64 tons for 75mm mounts 4t
--- 12 tons for 40mm mounts 2t
--- 10 tons for 25mm mounts 1t
- 67 tons for for crew comfort.