Sviatoslav class, Russian Fast Armored Cruiser laid down 1919 (Engine 1935)
Displacement:
14,045 t light; 14,705 t standard; 17,002 t normal; 18,839 t full load
Dimensions: Length overall / water x beam x draught
721.76 ft / 713.25 ft x 72.18 ft (Bulges 84.48 ft) x 22.97 ft (normal load)
219.99 m / 217.40 m x 22.00 m (Bulges 25.75 m) x 7.00 m
Armament:
9 - 9.21" / 234 mm guns (3x3 guns), 440.92lbs / 200.00kg shells, 1935 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority aft, 1 raised mount aft - superfiring
12 - 3.94" / 100 mm guns (6x2 guns), 37.48lbs / 17.00kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread, 2 raised mounts
32 - 1.46" / 37.0 mm guns (8x4 guns), 1.55lbs / 0.70kg shells, 1935 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread, 4 raised mounts
6 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1935 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 4,468 lbs / 2,027 kg
Shells per gun, main battery: 125
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 436.35 ft / 133.00 m 9.84 ft / 3.00 m
Ends: 1.18" / 30 mm 252.62 ft / 77.00 m 9.84 ft / 3.00 m
24.28 ft / 7.40 m Unarmoured ends
Upper: 0.79" / 20 mm 32.81 ft / 10.00 m 19.69 ft / 6.00 m
Main Belt covers 94 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 6.69" / 170 mm 2.76" / 70 mm 5.51" / 140 mm
2nd: 0.98" / 25 mm 0.20" / 5 mm -
3rd: 0.98" / 25 mm 0.20" / 5 mm -
- Armour deck: 2.36" / 60 mm, Conning tower: 5.91" / 150 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 107,888 shp / 80,485 Kw = 32.00 kts
Range 9,100nm at 18.00 kts
Bunker at max displacement = 4,133 tons
Complement:
743 - 967
Cost:
£2.910 million / $11.640 million
Distribution of weights at normal displacement:
Armament: 492 tons, 2.9 %
Armour: 3,079 tons, 18.1 %
- Belts: 1,019 tons, 6.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 564 tons, 3.3 %
- Armour Deck: 1,413 tons, 8.3 %
- Conning Tower: 84 tons, 0.5 %
Machinery: 3,065 tons, 18.0 %
Hull, fittings & equipment: 7,319 tons, 43.0 %
Fuel, ammunition & stores: 2,957 tons, 17.4 %
Miscellaneous weights: 90 tons, 0.5 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
24,196 lbs / 10,975 Kg = 61.9 x 9.2 " / 234 mm shells or 2.8 torpedoes
Stability (Unstable if below 1.00): 1.24
Metacentric height 4.6 ft / 1.4 m
Roll period: 16.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.37
Seaboat quality (Average = 1.00): 1.20
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.430
Length to Beam Ratio: 8.44 : 1
'Natural speed' for length: 26.71 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 14.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 34.12 ft / 10.40 m
- Forecastle (20 %): 22.47 ft / 6.85 m
- Mid (70 %): 22.31 ft / 6.80 m (13.12 ft / 4.00 m aft of break)
- Quarterdeck (15 %): 13.12 ft / 4.00 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 20.56 ft / 6.27 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 81.9 %
- Above water (accommodation/working, high = better): 167.8 %
Waterplane Area: 32,328 Square feet or 3,003 Square metres
Displacement factor (Displacement / loading): 128 %
Structure weight / hull surface area: 142 lbs/sq ft or 694 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.19
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
Breakdown of Miscellaneous Weights:
Air search radar - 20 tons
Surface search radar - 20 tons
2 Seaplanes, 1 Catapult
Notes:
The Sviatoslav class rebuild replaced their 210mm quad turrets with triple 234mm turrets, as in the original pre-Cleito Treaty design. They also recieved a new bow, hull bulges, increased deck armor, replacement of 100mm casemate mounts with 100mm twin deck mounts with hoists, air search radar, surface search radar, new engines, and increased fuel bunkerage.
Ships in Class:
- Sviatoslav
- Sviatopolk
- Oslybya
- Peresvet