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space-joe — Ishizuchi class battleship proposal refit (1944)
Published: 2016-11-06 00:13:27 +0000 UTC; Views: 1328; Favourites: 13; Downloads: 22
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Description
the second proposal refit to the ishizuchi in 1944Displacement:
26,841 t light; 28,254 t standard; 31,699 t normal; 34,456 t full load
Dimensions: Length overall / water x beam x draught
751.14 ft / 740.00 ft x 94.00 ft x 29.00 ft (normal load)
228.95 m / 225.55 m x 28.65 m x 8.84 m
Armament:
8 - 12.01" / 305 mm guns (4x2 guns), 865.70lbs / 392.68kg shells, 1909 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
16 - 5.00" / 127 mm guns (2x8guns), 62.50lbs / 28.35kg shells, 1932 Model
Breech loading guns in deck mounts
on side, evenly spread
60 - 0.98" / 25.0 mm guns (3x20 guns), 0.48lbs / 0.22kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 8,976 lbs / 4,071 kg
Shells per gun, main battery: 190
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11.0" / 279 mm 555.00 ft / 169.16 m 10.00 ft / 3.05 m
Ends: 2.00" / 51 mm 266.00 ft / 81.08 m 10.00 ft / 3.05 m
Upper: 3.00" / 76 mm 555.00 ft / 169.16 m 7.00 ft / 2.13 m
Main Belt covers 115 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead:
3.00" / 76 mm 555.00 ft / 169.16 m 24.00 ft / 7.32 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 6.00" / 152 mm 6.00" / 152 mm
2nd: 8.00" / 203 mm - -
3rd: 5.00" / 127 mm - -
- Armour deck: 4.00" / 102 mm, Conning tower: 13.00" / 330 mm
Machinery:
Oil fired boilers, steam turbines,
No drive to shaft, 4 shafts, 159,489 shp / 118,979 Kw = 31.66 kts
Range 6,070nm at 17.00 kts
Bunker at max displacement = 6,202 tons
Complement:
1,187 - 1,544
Cost:
£2.805 million / $11.218 million
Distribution of weights at normal displacement:
Armament: 1,122 tons, 3.5 %
Armour: 10,248 tons, 32.3 %
- Belts: 3,218 tons, 10.2 %
- Torpedo bulkhead: 1,479 tons, 4.7 %
- Armament: 1,679 tons, 5.3 %
- Armour Deck: 3,592 tons, 11.3 %
- Conning Tower: 281 tons, 0.9 %
Machinery: 6,590 tons, 20.8 %
Hull, fittings & equipment: 8,880 tons, 28.0 %
Fuel, ammunition & stores: 4,859 tons, 15.3 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
29,808 lbs / 13,521 Kg = 34.4 x 12.0 " / 305 mm shells or 4.5 torpedoes
Stability (Unstable if below 1.00): 1.31
Metacentric height 7.4 ft / 2.2 m
Roll period: 14.6 seconds
Steadiness - As gun platform (Average = 50 %): 61 %
- Recoil effect (Restricted arc if above 1.00): 0.31
Seaboat quality (Average = 1.00): 1.05
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.550
Length to Beam Ratio: 7.87 : 1
'Natural speed' for length: 27.20 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 13.00 degrees
Stern overhang: 4.00 ft / 1.22 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.92 ft / 9.42 m
- Forecastle (21 %): 21.04 ft / 6.41 m
- Mid (50 %): 19.04 ft / 5.80 m (19.00 ft / 5.79 m aft of break)
- Quarterdeck (20 %): 21.04 ft / 6.41 m
- Stern: 20.04 ft / 6.11 m
- Average freeboard: 21.17 ft / 6.45 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 120.9 %
- Above water (accommodation/working, high = better): 156.0 %
Waterplane Area: 48,545 Square feet or 4,510 Square metres
Displacement factor (Displacement / loading): 98 %
Structure weight / hull surface area: 129 lbs/sq ft or 628 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.83
- Longitudinal: 0.93
- Overall: 0.83
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellen
