Rodzhestvenskiy class, Russian Icebreaker laid down 1929
Displacement:
26,624 t light; 27,945 t standard; 64,220 t normal; 93,240 t full load
Dimensions: Length overall / water x beam x draught
661.72 ft / 656.17 ft x 114.83 ft (Bulges 127.95 ft) x 33.46 ft (normal load)
201.69 m / 200.00 m x 35.00 m (Bulges 39.00 m) x 10.20 m
Armament:
4 - 5.12" / 130 mm guns (2x2 guns), 79.37lbs / 36.00kg shells, 1929 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread
4 - 2.95" / 75.0 mm guns (2x2 guns), 15.43lbs / 7.00kg shells, 1929 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts
16 - 1.46" / 37.0 mm guns (8x2 guns), 1.55lbs / 0.70kg shells, 1929 Model
Breech loading guns in deck mounts with hoists
on side, evenly spread
Weight of broadside 404 lbs / 183 kg
Shells per gun, main battery: 150
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.57" / 40 mm 492.13 ft / 150.00 m 34.45 ft / 10.50 m
Ends: 3.54" / 90 mm 98.43 ft / 30.00 m 34.45 ft / 10.50 m
65.62 ft / 20.00 m Unarmoured ends
Main Belt covers 115 % of normal length
- Torpedo Bulkhead and Bulges:
1.97" / 50 mm 524.93 ft / 160.00 m 33.46 ft / 10.20 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.20" / 5 mm -
2nd: 0.98" / 25 mm 0.20" / 5 mm -
3rd: 0.98" / 25 mm - -
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 49,478 shp / 36,911 Kw = 20.00 kts
Range 42,300nm at 20.00 kts
Bunker at max displacement = 65,295 tons
Complement:
403 - 524
Cost:
£4.723 million / $18.892 million
Distribution of weights at normal displacement:
Armament: 43 tons, 0.1 %
Armour: 2,900 tons, 4.5 %
- Belts: 1,603 tons, 2.5 %
- Torpedo bulkhead: 1,279 tons, 2.0 %
- Armament: 18 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,520 tons, 2.4 %
Hull, fittings & equipment: 18,062 tons, 28.1 %
Fuel, ammunition & stores: 37,596 tons, 58.5 %
Miscellaneous weights: 4,100 tons, 6.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
421,899 lbs / 191,370 Kg = 6,293.7 x 5.1 " / 130 mm shells or 193.5 torpedoes
Stability (Unstable if below 1.00): 2.13
Metacentric height 20.1 ft / 6.1 m
Roll period: 12.0 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.65
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.800
Length to Beam Ratio: 5.13 : 1
'Natural speed' for length: 25.62 kts
Power going to wave formation at top speed: 45 %
Trim (Max stability = 0, Max steadiness = 100): 43
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.50 ft / 9.60 m
- Forecastle (20 %): 22.31 ft / 6.80 m
- Mid (50 %): 22.31 ft / 6.80 m (14.44 ft / 4.40 m aft of break)
- Quarterdeck (15 %): 14.44 ft / 4.40 m
- Stern: 14.44 ft / 4.40 m
- Average freeboard: 19.11 ft / 5.82 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 20.6 %
- Above water (accommodation/working, high = better): 112.4 %
Waterplane Area: 65,847 Square feet or 6,117 Square metres
Displacement factor (Displacement / loading): 618 %
Structure weight / hull surface area: 207 lbs/sq ft or 1,011 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.50
- Longitudinal: 1.50
- Overall: 1.50
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Breakdown of Miscellaneous Weights:
4 Sea/Skiplanes, 2 catapults
400 tons extra accomodations
3000 tons supplies
Ships in Class:
- Admiral Rodzhestvenskiy
- Admiral Felkerzam
- Admiral Nebogatov