Oscar II vs Sierra
Oscar II vs Sierra at a glance — displacement 12,500 vs 7,200 tons, length 155 vs 107 m, speed 15 vs 10 knots, crew 94 vs 61.
Specifications
|
Oscar II |
Sierra |
| Origin |
🇷🇺 Ex-USSR |
🇷🇺 Ex-USSR |
| Category |
Submarine |
Submarine |
| Type |
Nuclear-powered cruise missile submarine |
Nuclear-powered attack submarine |
| Manufacturer |
Sevmash |
Krasnoye Sormovo |
| Year introduced |
1986 |
1984 |
| Number built |
14 units |
4 units |
| Estimated unit price |
NA |
NA |
| Displacement |
12,500 tons |
7,200 tons |
| Maximum speed |
15.0 knots |
10.0 knots |
| Range |
Unlimited |
Unlimited |
| Length |
155.0 m |
107.2 m |
| Beam |
18.2 m |
12.3 m |
| Crew |
94 |
61 |
| Max depth |
520 m |
600 m |
Armament & Systems
|
Oscar II |
Sierra |
| Armament |
- 4 × 533 mm and 2 × 650 mm torpedo tubes in bow
- 28 × 533 mm and 650 mm weapons, including RPK-2 Vyuga, RPK-6 Vodopad/RPK-7 Veter, Type 40 anti-submarine torpedo or 32 ground mines
- 24 × P-700 Granit cruise missiles
- 4 × 100 Mt Poseidon nuclear-powered, nuclear-armed drones
|
- 4 × 650 mm (26 in) torpedo tubes (only Sierra I)
- 4 × 530 mm (21 in) torpedo tubes (6 x Sierra II)
- SS-N-21 Sampson SLCM
- SS-N-15 Starfish anti-submarine weapon
- SS-N-16 Stallion
- 42 mines (instead of torpedoes)
|
| Propulsion |
2 × pressurized water cooled reactors, HEU ≤ 45%; 2 × steam turbines delivering 73,070 kW (97,990 shp) to two shafts |
1 × PWR, 190 MW (HEU <= 45%), 2 × 1,002 hp (747 kW) emergency motors, 1 shaft, 2 spinners |
Detailed Comparison
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Change comparison
vs
Which has greater displacement, the Oscar II-class or Sierra-class?
The Oscar II-class has greater displacement at 12,500 tons compared to the Sierra-class's 7,200 tons.
Which is faster, the Oscar II-class or Sierra-class?
The Oscar II-class is faster with a maximum speed of 15 knots compared to the Sierra-class's 10 knots.
Which has longer range, the Oscar II-class or Sierra-class?
Both the Oscar II-class and Sierra-class are nuclear-powered and have unlimited range, limited only by food supplies and crew endurance.
Which is longer, the Oscar II-class or Sierra-class?
The Oscar II-class is longer at 155.0 meters compared to the Sierra-class's 107.2 meters.
How many crew members do the Oscar II-class and Sierra-class have?
The Oscar II-class has a larger crew complement of 94 compared to the Sierra-class's 61 crew members.
Which can dive deeper, the Oscar II-class or Sierra-class?
The Sierra-class can dive deeper with a maximum depth of 600 meters compared to the Oscar II-class's 520 meters.
Which has been built in greater numbers, the Oscar II-class or Sierra-class?
The Oscar II-class has been built in greater numbers with 14 vessels compared to 4 vessels of the Sierra-class.
