Kniaginia Olga, russian large monitor laid down 1916 (Engine 1917)
Displacement:
7 978 t light; 8 596 t standard; 8 879 t normal; 9 105 t full load
Dimensions: Length overall / water x beam x draught
415,42 ft / 402,76 ft x 76,21 ft x 17,16 ft (normal load)
126,62 m / 122,76 m x 23,23 m x 5,23 m
Armament:
2 - 17,99" / 457 mm guns (1x2 guns), 2 912,18lbs / 1 320,94kg shells, 1916 Model
Breech loading guns in a turret (on a barbette)
on centreline forward
2 - 5,12" / 130 mm guns (1x2 guns), 67,03lbs / 30,40kg shells, 1916 Model
Quick firing guns in a deck mount with hoist
on centreline aft
4 - 5,12" / 130 mm guns in single mounts, 67,03lbs / 30,40kg shells, 1916 Model
Quick firing guns in casemate mounts
on centreline, all forward
4 guns in hull casemates - Limited use in heavy seas
2 - 2,99" / 76,0 mm guns in single mounts, 13,39lbs / 6,07kg shells, 1916 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 6 253 lbs / 2 836 kg
Shells per gun, main battery: 125
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5,91" / 150 mm 189,27 ft / 57,69 m 10,01 ft / 3,05 m
Ends: Unarmoured
Main Belt covers 72% of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead:
1,18" / 30 mm 189,27 ft / 57,69 m 14,99 ft / 4,57 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 9,84" / 250 mm 5,91" / 150 mm 9,84" / 250 mm
2nd: 2,95" / 75 mm - -
3rd: 7,09" / 180 mm - -
- Armour deck: 1,77" / 45 mm, Conning tower: 9,84" / 250 mm
Machinery:
Coal fired boilers, steam turbines,
Geared drive, 3 shafts, 6 839 shp / 5 102 Kw = 16,00 kts
Range 3 000nm at 10,00 kts
Bunker at max displacement = 509 tons (100% coal)
Complement:
456 - 594
Cost:
£1,595 million / $6,378 million
Distribution of weights at normal displacement:
Armament: 782 tons, 8,8%
Armour: 2 192 tons, 24,7%
- Belts: 550 tons, 6,2%
- Torpedo bulkhead: 124 tons, 1,4%
- Armament: 698 tons, 7,9%
- Armour Deck: 729 tons, 8,2%
- Conning Tower: 91 tons, 1,0%
Machinery: 276 tons, 3,1%
Hull, fittings & equipment: 4 728 tons, 53,3%
Fuel, ammunition & stores: 901 tons, 10,1%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13 115 lbs / 5 949 Kg = 4,5 x 18,0 " / 457 mm shells or 2,8 torpedoes
Stability (Unstable if below 1.00): 1,20
Metacentric height 4,7 ft / 1,4 m
Roll period: 14,8 seconds
Steadiness - As gun platform (Average = 50 %): 76 %
- Recoil effect (Restricted arc if above 1.00): 0,62
Seaboat quality (Average = 1.00): 1,51
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,590
Length to Beam Ratio: 5,28 : 1
'Natural speed' for length: 20,07 kts
Power going to wave formation at top speed: 39 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -9,00 degrees
Stern overhang: 12,66 ft / 3,86 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19,75 ft / 6,02 m
- Forecastle (28%): 18,96 ft / 5,78 m
- Mid (50%): 18,96 ft / 5,78 m (12,66 ft / 3,86 m aft of break)
- Quarterdeck (15%): 12,66 ft / 3,86 m
- Stern: 12,66 ft / 3,86 m
- Average freeboard: 15,90 ft / 4,85 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 104,7%
- Above water (accommodation/working, high = better): 140,2%
Waterplane Area: 22 241 Square feet or 2 066 Square metres
Displacement factor (Displacement / loading): 99%
Structure weight / hull surface area: 163 lbs/sq ft or 797 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,91
- Longitudinal: 2,41
- 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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