Hatsuse, Japan battleship laid down 1942 (Engine 1945)
Displacement:
65 245 t light; 68 264 t standard; 72 161 t normal; 75 278 t full load
Dimensions: Length overall / water x beam x draught
862,85 ft / 846,46 ft x 123,03 ft x 34,45 ft (normal load)
263,00 m / 258,00 m x 37,50 m x 10,50 m
Armament:
9 - 18,11" / 460 mm guns (3x3 guns), 2 969,90lbs / 1 347,12kg shells, 1942 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward
40 - 3,94" / 100 mm guns (20x2 guns), 30,51lbs / 13,84kg shells, 1942 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, evenly spread
108 - 0,98" / 25,0 mm guns (36x3 guns), 0,48lbs / 0,22kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 28 001 lbs / 12 701 kg
Shells per gun, main battery: 100
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 15,7" / 400 mm 567,59 ft / 173,00 m 18,04 ft / 5,50 m
Ends: 13,8" / 350 mm 147,64 ft / 45,00 m 9,84 ft / 3,00 m
131,23 ft / 40,00 m Unarmoured ends
Main Belt covers 103% of normal length
- Torpedo Bulkhead:
2,95" / 75 mm 674,21 ft / 205,50 m 32,81 ft / 10,00 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 24,8" / 630 mm 13,0" / 330 mm 22,0" / 560 mm
2nd: 1,18" / 30 mm 0,79" / 20 mm 1,97" / 50 mm
- Armour deck: 9,13" / 232 mm, Conning tower: 19,69" / 500 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 182 874 shp / 136 424 Kw = 28,60 kts
Range 8 600nm at 16,00 kts
Bunker at max displacement = 7 014 tons
Complement:
2 200 - 2 861
Cost:
£37,356 million / $149,423 million
Distribution of weights at normal displacement:
Armament: 3 500 tons, 4,9%
Armour: 31 749 tons, 44,0%
- Belts: 7 737 tons, 10,7%
- Torpedo bulkhead: 2 417 tons, 3,3%
- Armament: 6 706 tons, 9,3%
- Armour Deck: 14 155 tons, 19,6%
- Conning Tower: 735 tons, 1,0%
Machinery: 4 618 tons, 6,4%
Hull, fittings & equipment: 25 377 tons, 35,2%
Fuel, ammunition & stores: 6 916 tons, 9,6%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
134 607 lbs / 61 057 Kg = 45,3 x 18,1 " / 460 mm shells or 24,8 torpedoes
Stability (Unstable if below 1.00): 1,27
Metacentric height 10,5 ft / 3,2 m
Roll period: 15,9 seconds
Steadiness - As gun platform (Average = 50 %): 43 %
- Recoil effect (Restricted arc if above 1.00): 0,48
Seaboat quality (Average = 1.00): 1,05
Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0,704
Length to Beam Ratio: 6,88 : 1
'Natural speed' for length: 29,09 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 26,55 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 32,81 ft / 10,00 m
- Forecastle (19%): 23,29 ft / 7,10 m
- Mid (20%): 27,89 ft / 8,50 m
- Quarterdeck (8%): 19,69 ft / 6,00 m (27,89 ft / 8,50 m before break)
- Stern: 19,69 ft / 6,00 m
- Average freeboard: 27,06 ft / 8,25 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 69,1%
- Above water (accommodation/working, high = better): 202,0%
Waterplane Area: 83 769 Square feet or 7 782 Square metres
Displacement factor (Displacement / loading): 105%
Structure weight / hull surface area: 225 lbs/sq ft or 1 099 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,29
- Overall: 1,00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
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