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
Air search radar - 20 tons
Surface search radar - 20 tons
2 Seaplanes, 1 Catapult
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.
Original statistics, 1923:
Sviatoslav, Sviatopolk, Oslybya, Peresvet
Sviatoslav class heavy cruisers, laid down 1919
Length, 210.0 m x Beam, 22.0 m x Depth, 7.0 m
14020 tonnes normal displacement (12998 tonnes standard)
Main battery: 12 x 21.0-cm (3 x 4; 1 superfiring)
Secondary battery: 12 x 10.0-cm
AA battery: 4 x 7.6-cm
Light battery: 16 x 3.7-cm
Weight of broadside: 1743 kg
4 TT, 53.0 cm
Main belt, 12.0 cm; bow and stern, 3.0 cm
Armor deck, average 5.0 cm
Conning tower, 15.0 cm
Battery armor:
Main, 14.0 cm / secondary, 5.0 cm
AA, 2.5 cm shields / light guns, 2.5 cm shields
Aircraft - 3 Seaplanes, 1 Catapult
Maximum speed for 63064 shaft kw = 31.00 knots
Approximate cruising radius, 5500 nm / 15 knots
Typical complement: 644-838
Estimated cost, $10.968 million (£2.742 million)
Remarks:
Superfiring turret is aft.
Oil firing.
Relative extent of belt armor, 97 percent of 'typical' coverage.
Ship has slow, easy roll; a good, steady gun platform.
Good seaboat; rides out heavy weather easily.
Ship is roomy, with superior accommodation and working space.
Main deck secondary guns subject to being washed down
in a seaway.
Distribution of weights:
Percent
normal
displacement:
Armament ......................... 479 tonnes = 3 pct
Armor, total ..................... 2794 tonnes = 20 pct
Belt 968 tonnes = 7 pct
Deck 1028 tonnes = 7 pct
C.T. 74 tonnes = 1 pct
Armament 723 tonnes = 5 pct
Machinery ........................ 3001 tonnes = 21 pct
Hull and fittings; equipment ..... 6049 tonnes = 43 pct
Fuel, ammunition, stores ......... 1622 tonnes = 12 pct
Miscellaneous weights ............ 75 tonnes = 1 pct
-----
14020 tonnes = 100 pct
Estimated metacentric height, 1.2 m
Displacement summary:
Light ship: 12398 tonnes
Standard displacement: 12998 tonnes
Normal service: 14020 tonnes
Full load: 14782 tonnes
Loading submergence 2646 tonnes/metre
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Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.13
Shellfire needed to sink: 7211 kg = 56.1 x 21.0-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)
Torpedoes needed to sink: 2.0
(Approximates number of 'typical'
torpedo hits needed to sink ship)
Relative steadiness as gun platform, 70 percent
(50 percent is 'average')
Relative rocking effect from firing to beam, 0.50
Relative quality as a seaboat: 1.20
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Hull form characteristics:
Block coefficient: 0.43
Sharpness coefficient: 0.31
Hull speed coefficient 'M' = 8.74
'Natural speed' for length = 26.2 knots
Power going to wave formation
at top speed: 48 percent
Estimated hull characteristics and strength:
Relative underwater volume absorbed by
magazines and engineering spaces: 97 percent
Relative accommodation and working space: 145 percent
Displacement factor: 111 percent
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.99
(Structure weight per square
metre of hull surface: 652 kg)
Relative longitudinal hull strength: 1.09
(for 5.60 m average freeboard;
freeboard adjustment +0.66 m)
Relative composite hull strength: 1.00
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[Machine-readable parameters: Spring Style v. 1.2.1]
688.80 x 72.16 x 22.96; 18.37 -- Dimensions
0.43 -- Block coefficient
1919 -- Year laid down
31.00 / 5500 / 15.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
75 tons -- Miscellaneous weights
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12 x 8.27; 3; 1 -- Main battery; turrets; superfiring
Superfiring turret aft only
:
12 x 3.94; 0 -- Secondary battery; turrets
Main deck battery
:
4 x 2.99 -- Tertiary (QF/AA) battery
Gun-shields
:
16 x 1.46 -- Fourth (light) battery
4 / 0 / 20.87 -- TT / submerged / size
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4.72 / 1.18 / 0.00 / 0.00; 97 -- Belt armor; relative extent
1.97 / 5.91 -- Deck / CT
5.51 / 1.97 / 0.98 / 0.98 -- Battery armor
(Note: For portability, values are stored in Anglo-American units)
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This post has been edited 1 times, last edit by "AdmKuznetsov" (Mar 13th 2008, 4:10pm)