Russia has built powerful light cruisers for working with the battle fleet. What Russia needs is a class of light cruisers to do the more mundane cruiser roles. Presenting the Admiral Putiatin class:
Adm Putiatin, Russian Light Cruiser laid down 1941
Displacement:
6,874 t light; 7,177 t standard; 8,292 t normal; 9,183 t full load
Dimensions: Length overall / water x beam x draught
575.41 ft / 557.74 ft x 55.77 ft x 19.85 ft (normal load)
175.38 m / 170.00 m x 17.00 m x 6.05 m
Armament:
9 - 5.98" / 152 mm guns (3x3 guns), 123.46lbs / 56.00kg shells, 1941 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
2 - 3.94" / 100 mm guns (1x2 guns), 37.48lbs / 17.00kg shells, 1941 Model
Dual purpose guns in a deck mount with hoist
on centreline aft, all raised guns - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 37.48lbs / 17.00kg shells, 1941 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread
24 - 1.46" / 37.0 mm guns (6x4 guns), 1.55lbs / 0.70kg shells, 1941 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, 1941 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1,524 lbs / 691 kg
Shells per gun, main battery: 150
12 - 21.7" / 550 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.15" / 80 mm 328.08 ft / 100.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 90 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.94" / 100 mm 1.97" / 50 mm 2.76" / 70 mm
2nd: 0.98" / 25 mm 0.20" / 5 mm 0.79" / 20 mm
3rd: 0.98" / 25 mm 0.20" / 5 mm 0.79" / 20 mm
4th: 0.98" / 25 mm 0.20" / 5 mm 0.79" / 20 mm
- Armour deck: 1.97" / 50 mm, Conning tower: 3.15" / 80 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 65,731 shp / 49,035 Kw = 32.00 kts
Range 11,400nm at 15.00 kts
Bunker at max displacement = 2,006 tons
Complement:
433 - 564
Cost:
£3.839 million / $15.357 million
Distribution of weights at normal displacement:
Armament: 163 tons, 2.0 %
Armour: 1,435 tons, 17.3 %
- Belts: 429 tons, 5.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 214 tons, 2.6 %
- Armour Deck: 764 tons, 9.2 %
- Conning Tower: 28 tons, 0.3 %
Machinery: 1,737 tons, 20.9 %
Hull, fittings & equipment: 3,389 tons, 40.9 %
Fuel, ammunition & stores: 1,418 tons, 17.1 %
Miscellaneous weights: 149 tons, 1.8 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
11,652 lbs / 5,285 Kg = 108.7 x 6.0 " / 152 mm shells or 1.7 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 2.5 ft / 0.8 m
Roll period: 14.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.57
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: 10.00 : 1
'Natural speed' for length: 27.05 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.51 ft / 9.30 m
- Forecastle (25 %): 19.69 ft / 6.00 m
- Mid (50 %): 17.72 ft / 5.40 m
- Quarterdeck (21 %): 18.04 ft / 5.50 m
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 19.83 ft / 6.04 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86.1 %
- Above water (accommodation/working, high = better): 120.8 %
Waterplane Area: 20,971 Square feet or 1,948 Square metres
Displacement factor (Displacement / loading): 130 %
Structure weight / hull surface area: 97 lbs/sq ft or 475 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.72
- 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
Good seaboat, rides out heavy weather easily
5 100mm automatic twin DP mounts - 25 tons
Air search radar - 10 tons
Antiaircraft fire control radar - 10 tons
Surface search radar - 10 tons
Main battery fire control radar - 10 tons
2 aircraft, 1 catapult - 60 tons
Torpedos - 20 tons