Seawolf vs Sierra
Seawolf vs Sierra at a glance — displacement 8,600 vs 7,200 tons, length 108 vs 107 m, speed 18 vs 10 knots, crew 140 vs 61.
Specifications
|
Seawolf |
Sierra |
| Origin |
🇺🇸 United States |
🇷🇺 Ex-USSR |
| Category |
Submarine |
Submarine |
| Type |
Nuclear-powered attack submarine |
Nuclear-powered attack submarine |
| Manufacturer |
General Dynamics Electric Boat |
Krasnoye Sormovo |
| Year introduced |
1997 |
1984 |
| Number built |
3 units |
4 units |
| Estimated unit price |
$3,000 million |
NA |
| Displacement |
8,600 tons |
7,200 tons |
| Maximum speed |
18.0 knots |
10.0 knots |
| Range |
Unlimited |
Unlimited |
| Length |
108.0 m |
107.2 m |
| Beam |
12.0 m |
12.3 m |
| Crew |
140 |
61 |
| Max depth |
490 m |
600 m |
Armament & Systems
|
Seawolf |
Sierra |
| Armament |
- 8 x 26.5-inch torpedo tubes
- Tomahawk land attack missile
- Harpoon anti-ship missile
- Mk 48 guided torpedo
|
- 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 S6W PWR 220 MW (300,000 hp), 1 secondary propulsion submerged motor, 2 steam turbines 57,000 shp (43 MW), 1 shaft, 1 pump-jet propeller |
1 × PWR, 190 MW (HEU <= 45%), 2 × 1,002 hp (747 kW) emergency motors, 1 shaft, 2 spinners |
Detailed Comparison
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Largest operators · in service
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Which has greater displacement, the Seawolf-class or Sierra-class?
The Seawolf-class has greater displacement at 8,600 tons compared to the Sierra-class's 7,200 tons.
Which is faster, the Seawolf-class or Sierra-class?
The Seawolf-class is faster with a maximum speed of 18 knots compared to the Sierra-class's 10 knots.
Which has longer range, the Seawolf-class or Sierra-class?
Both the Seawolf-class and Sierra-class are nuclear-powered and have unlimited range, limited only by food supplies and crew endurance.
Which is longer, the Seawolf-class or Sierra-class?
The Seawolf-class is longer at 108.0 meters compared to the Sierra-class's 107.2 meters.
How many crew members do the Seawolf-class and Sierra-class have?
The Seawolf-class has a larger crew complement of 140 compared to the Sierra-class's 61 crew members.
Which can dive deeper, the Seawolf-class or Sierra-class?
The Sierra-class can dive deeper with a maximum depth of 600 meters compared to the Seawolf-class's 490 meters.
Which has been built in greater numbers, the Seawolf-class or Sierra-class?
The Sierra-class has been built in greater numbers with 4 vessels compared to 3 vessels of the Seawolf-class.
