Oslablja, russian battleship laid down 1914 (Engine 1916)
Displacement:
27 226 t light; 29 111 t standard; 31 974 t normal; 34 264 t full load
Dimensions: Length overall / water x beam x draught
657,81 ft / 657,81 ft x 95,80 ft x 30,51 ft (normal load)
200,50 m / 200,50 m x 29,20 m x 9,30 m
Armament:
12 - 12,01" / 305 mm guns (4x3 guns), 865,70lbs / 392,67kg shells, 1914 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
3 - 12,01" / 305 mm guns (1x3 guns), 865,70lbs / 392,67kg shells, 1914 Model
Breech loading guns in a turret (on a barbette)
on centreline amidships
20 - 5,12" / 130 mm guns in single mounts, 67,03lbs / 30,40kg shells, 1914 Model
Quick firing guns in casemate mounts
on side, evenly spread
8 - 2,99" / 76,0 mm guns in single mounts, 13,39lbs / 6,07kg shells, 1914 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 14 433 lbs / 6 547 kg
Shells per gun, main battery: 150
4 - 18,0" / 457 mm submerged torpedo tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12,4" / 316 mm 453,74 ft / 138,30 m 14,44 ft / 4,40 m
Ends: 5,31" / 135 mm 196,85 ft / 60,00 m 11,15 ft / 3,40 m
7,22 ft / 2,20 m Unarmoured ends
Main Belt covers 106% of normal length
- Torpedo Bulkhead:
1,85" / 47 mm 555,45 ft / 169,30 m 27,23 ft / 8,30 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 12,0" / 305 mm 8,39" / 213 mm 9,41" / 239 mm
2nd: 12,0" / 305 mm 8,39" / 213 mm 9,41" / 239 mm
3rd: 4,72" / 120 mm - -
- Armour deck: 3,43" / 87 mm, Conning tower: 12,99" / 330 mm
Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 4 shafts, 57 748 shp / 43 080 Kw = 24,00 kts
Range 6 800nm at 15,00 kts
Bunker at max displacement = 5 153 tons (75% coal)
Complement:
1 195 - 1 554
Cost:
£3,553 million / $14,212 million
Distribution of weights at normal displacement:
Armament: 1 804 tons, 5,6%
Armour: 11 149 tons, 34,9%
- Belts: 3 922 tons, 12,3%
- Torpedo bulkhead: 1 036 tons, 3,2%
- Armament: 3 037 tons, 9,5%
- Armour Deck: 2 872 tons, 9,0%
- Conning Tower: 282 tons, 0,9%
Machinery: 2 309 tons, 7,2%
Hull, fittings & equipment: 11 964 tons, 37,4%
Fuel, ammunition & stores: 4 748 tons, 14,8%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
46 512 lbs / 21 098 Kg = 53,7 x 12,0 " / 305 mm shells or 7,4 torpedoes
Stability (Unstable if below 1.00): 1,14
Metacentric height 6,0 ft / 1,8 m
Roll period: 16,4 seconds
Steadiness - As gun platform (Average = 50 %): 76 %
- Recoil effect (Restricted arc if above 1.00): 0,72
Seaboat quality (Average = 1.00): 1,52
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,582
Length to Beam Ratio: 6,87 : 1
'Natural speed' for length: 25,65 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -4,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22,97 ft / 7,00 m
- Forecastle (20%): 21,98 ft / 6,70 m
- Mid (50%): 21,98 ft / 6,70 m
- Quarterdeck (15%): 21,98 ft / 6,70 m
- Stern: 21,98 ft / 6,70 m
- Average freeboard: 22,06 ft / 6,72 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87,6%
- Above water (accommodation/working, high = better): 158,8%
Waterplane Area: 45 320 Square feet or 4 210 Square metres
Displacement factor (Displacement / loading): 106%
Structure weight / hull surface area: 185 lbs/sq ft or 902 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,95
- Longitudinal: 1,59
- 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
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