the General-Admiral Apraksin class.
These four ships are getting modern radars and comm gear, upgraded turret armor, and a service life extension.
Gen-Adm Apraksin, refit 1940, Russian Light Cruiser laid down 1922
Displacement:
7,391 t light; 7,852 t standard; 8,981 t normal; 9,884 t full load
Dimensions: Length overall / water x beam x draught
609.58 ft / 590.55 ft x 54.79 ft x 20.67 ft (normal load)
185.80 m / 180.00 m x 16.70 m x 6.30 m
Armament:
12 - 5.98" / 152 mm guns (4x3 guns), 123.46lbs / 56.00kg shells, 1940 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 3.94" / 100 mm guns (6x2 guns), 37.48lbs / 17.00kg shells, 1940 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread, 2 raised mounts - superfiring
24 - 1.46" / 37.0 mm guns (6x4 guns), 1.55lbs / 0.70kg shells, 1940 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread, 2 raised mounts
8 - 0.55" / 14.0 mm guns (4x2 guns), 0.08lbs / 0.04kg shells, 1940 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 1,969 lbs / 893 kg
Shells per gun, main battery: 240
12 - 21.7" / 550 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.95" / 75 mm 410.11 ft / 125.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 107 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.54" / 90 mm 2.36" / 60 mm 2.76" / 70 mm
2nd: 0.98" / 25 mm 0.20" / 5 mm -
3rd: 0.98" / 25 mm 0.20" / 5 mm -
- Armour deck: 0.98" / 25 mm, Conning tower: 1.97" / 50 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 63,673 shp / 47,500 Kw = 31.50 kts
Range 9,000nm at 15.00 kts
Bunker at max displacement = 2,032 tons
Complement:
460 - 599
Cost:
£2.014 million / $8.056 million
Distribution of weights at normal displacement:
Armament: 211 tons, 2.4 %
Armour: 1,189 tons, 13.2 %
- Belts: 488 tons, 5.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 286 tons, 3.2 %
- Armour Deck: 397 tons, 4.4 %
- Conning Tower: 18 tons, 0.2 %
Machinery: 2,160 tons, 24.0 %
Hull, fittings & equipment: 3,650 tons, 40.6 %
Fuel, ammunition & stores: 1,590 tons, 17.7 %
Miscellaneous weights: 180 tons, 2.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10,277 lbs / 4,661 Kg = 95.9 x 6.0 " / 152 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 2.4 ft / 0.7 m
Roll period: 15.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.78
Seaboat quality (Average = 1.00): 1.20
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.470
Length to Beam Ratio: 10.78 : 1
'Natural speed' for length: 27.67 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.74 ft / 8.15 m
- Forecastle (26 %): 18.04 ft / 5.50 m
- Mid (50 %): 17.22 ft / 5.25 m
- Quarterdeck (25 %): 18.04 ft / 5.50 m
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 18.95 ft / 5.78 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 100.4 %
- Above water (accommodation/working, high = better): 116.0 %
Waterplane Area: 21,813 Square feet or 2,027 Square metres
Displacement factor (Displacement / loading): 122 %
Structure weight / hull surface area: 101 lbs/sq ft or 493 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.41
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
2 seaplanes, 1 catapult - 70 tons
Surface search radar - 20 tons
Air search radar - 20 tons
Main battery fire control radar - 10 tons
AA battery fire control radar - 10 tons
Misc - 50 tons