Los Angeles vs Sierra
Los Angeles vs Sierra at a glance — displacement 6,082 vs 7,200 tons, length 110 vs 107 m, speed 15 vs 10 knots, crew 129 vs 61.
Specifications
|
Los Angeles |
Sierra |
| Origin |
🇺🇸 United States |
🇷🇺 Ex-USSR |
| Category |
Submarine |
Submarine |
| Type |
Nuclear-powered attack submarine |
Nuclear-powered attack submarine |
| Manufacturer |
Newport News Shipbuilding |
Krasnoye Sormovo |
| Year introduced |
1976 |
1984 |
| Number built |
62 units |
4 units |
| Estimated unit price |
$900 million |
NA |
| Displacement |
6,082 tons |
7,200 tons |
| Maximum speed |
15.0 knots |
10.0 knots |
| Range |
Unlimited |
Unlimited |
| Length |
110.0 m |
107.2 m |
| Beam |
10.0 m |
12.3 m |
| Crew |
129 |
61 |
| Max depth |
450 m |
600 m |
Armament & Systems
|
Los Angeles |
Sierra |
| Armament |
- 4 × 21 in (533 mm) torpedo tubes
- 37 × Mk 48 torpedo
- Tomahawk land attack missile
- Harpoon anti-ship missile
- Mk 67 mobile mines
- Mk 60 CAPTOR mines
- 12-tube VLS (FLTII and 688i FLTIII)
|
- 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 |
1 × S6G nuclear reactor (150–165 MW), 2 × steam turbines (30,000–33,500) shp, 1 × shaft, 1 × secondary propulsion motor 325 hp (242 kW) |
1 × PWR, 190 MW (HEU <= 45%), 2 × 1,002 hp (747 kW) emergency motors, 1 shaft, 2 spinners |
Detailed Comparison
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Which has greater displacement, the Los Angeles-class or Sierra-class?
The Sierra-class has greater displacement at 7,200 tons compared to the Los Angeles-class's 6,082 tons.
Which is faster, the Los Angeles-class or Sierra-class?
The Los Angeles-class is faster with a maximum speed of 15 knots compared to the Sierra-class's 10 knots.
Which has longer range, the Los Angeles-class or Sierra-class?
Both the Los Angeles-class and Sierra-class are nuclear-powered and have unlimited range, limited only by food supplies and crew endurance.
Which is longer, the Los Angeles-class or Sierra-class?
The Los Angeles-class is longer at 110.0 meters compared to the Sierra-class's 107.2 meters.
How many crew members do the Los Angeles-class and Sierra-class have?
The Los Angeles-class has a larger crew complement of 129 compared to the Sierra-class's 61 crew members.
Which can dive deeper, the Los Angeles-class or Sierra-class?
The Sierra-class can dive deeper with a maximum depth of 600 meters compared to the Los Angeles-class's 450 meters.
Which has been built in greater numbers, the Los Angeles-class or Sierra-class?
The Los Angeles-class has been built in greater numbers with 62 vessels compared to 4 vessels of the Sierra-class.
