Impierator Nikołaj II, russian battleship laid down 1918 (Engine 1921)
Displacement:
42 934 t light; 45 359 t standard; 46 506 t normal; 47 424 t full load
Dimensions: Length overall / water x beam x draught
868,78 ft / 862,53 ft x 112,86 ft x 30,02 ft (normal load)
264,80 m / 262,90 m x 34,40 m x 9,15 m
Armament:
16 - 15,98" / 406 mm guns (4x4 guns), 2 041,96lbs / 926,22kg shells, 1918 Model
Breech loading guns in turrets (on barbettes)
on centreline, evenly spread
Main guns limited to end-on fire
Aft Main mounts separated by engine room
24 - 5,98" / 152 mm guns in single mounts, 107,15lbs / 48,60kg shells, 1918 Model
Quick firing guns in casemate mounts
on side, all amidships
12 - 2,99" / 76,0 mm guns in single mounts, 13,39lbs / 6,07kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 35 404 lbs / 16 059 kg
Shells per gun, main battery: 75
4 - 18,0" / 457 mm submerged torpedo tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11,8" / 300 mm 562,37 ft / 171,41 m 9,15 ft / 2,79 m
Ends: 5,91" / 150 mm 272,57 ft / 83,08 m 6,76 ft / 2,06 m
27,59 ft / 8,41 m Unarmoured ends
Main Belt covers 100% of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead:
1,18" / 30 mm 562,37 ft / 171,41 m 24,80 ft / 7,56 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11,8" / 300 mm 10,2" / 260 mm 11,4" / 290 mm
2nd: 1,97" / 50 mm - -
- Armour deck: 2,48" / 63 mm, Conning tower: 12,01" / 305 mm
Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 4 shafts, 93 449 shp / 69 713 Kw = 26,20 kts
Range 4 000nm at 12,00 kts
Bunker at max displacement = 2 065 tons (25% coal)
Complement:
1 583 - 2 058
Cost:
£11,362 million / $45,449 million
Distribution of weights at normal displacement:
Armament: 4 425 tons, 9,5%
Armour: 11 592 tons, 24,9%
- Belts: 3 004 tons, 6,5%
- Torpedo bulkhead: 610 tons, 1,3%
- Armament: 4 506 tons, 9,7%
- Armour Deck: 3 138 tons, 6,7%
- Conning Tower: 335 tons, 0,7%
Machinery: 3 293 tons, 7,1%
Hull, fittings & equipment: 23 623 tons, 50,8%
Fuel, ammunition & stores: 3 572 tons, 7,7%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
53 811 lbs / 24 408 Kg = 26,4 x 16,0 " / 406 mm shells or 6,3 torpedoes
Stability (Unstable if below 1.00): 1,10
Metacentric height 7,2 ft / 2,2 m
Roll period: 17,7 seconds
Steadiness - As gun platform (Average = 50 %): 66 %
- Recoil effect (Restricted arc if above 1.00): 1,11
Seaboat quality (Average = 1.00): 1,32
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,557
Length to Beam Ratio: 7,64 : 1
'Natural speed' for length: 29,37 kts
Power going to wave formation at top speed: 41 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 13,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27,07 ft / 8,25 m
- Forecastle (20%): 25,98 ft / 7,92 m
- Mid (50%): 25,98 ft / 7,92 m
- Quarterdeck (15%): 25,98 ft / 7,92 m
- Stern: 25,98 ft / 7,92 m
- Average freeboard: 26,07 ft / 7,95 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 114,6%
- Above water (accommodation/working, high = better): 213,8%
Waterplane Area: 68 384 Square feet or 6 353 Square metres
Displacement factor (Displacement / loading): 87%
Structure weight / hull surface area: 250 lbs/sq ft or 1 221 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,26
- Overall: 1,00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily
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