Sierra vs Trafalgar
Overview
The Sierra and the Trafalgar are both Submarine classes.
Displacement is 7,200 tons for the Sierra vs 4,800 tons for the Trafalgar. The Sierra reaches 10 knots vs 20 knots for the Trafalgar. Operational range is 99,999 nautical miles for the Sierra vs 99,999 for the Trafalgar. The Sierra carries a crew of 61 vs 130 for the Trafalgar. Submerged displacement is 8,300 tons for the Sierra vs 5,300 tons for the Trafalgar. The Sierra can dive to 600 m compared to 300 m for the Trafalgar.
The Sierra was produced in 4 units vs 7 for the Trafalgar. The Sierra was commissioned in 1984, 1 years after the Trafalgar (1983).
| Soviet nuclear attack submarine, introduced in 1984, has a displacement of 7,200 tons. | |
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| Origin | 🇨🇳 Ex-USSR |
| Category | Submarine |
| Type | Nuclear attack submarine |
| Manufacturer | Krasnoye Sormovo |
| Year introduced | 1984 |
| Number built | 4 units |
| Estimated unit price | NA |
| British submarine, 4,800 tons displacement, powered by a Rolls-Royce PWR1 nuclear reactor. | |
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| Origin | 🇬🇧 United Kingdom |
| Category | Submarine |
| Type | Nuclear-powered fleet submarines |
| Manufacturer | Vickers Shipbuilding and Engineering |
| Year introduced | 1983 |
| Number built | 7 units |
| Estimated unit price | $573 million |
| Displacement | 7,200 tons ◉ |
| Maximum speed | 10.0 knots ◉ |
| Range | Unlimited ◉ |
| Length | 107.2 m ◉ |
| Beam | 12.3 m ◉ |
| Crew | 61 ◉ |
| Max depth | 600 m ◉ |
| Propulsion | 1 × PWR, 190 MW (HEU <= 45%), 2 × 1,002 hp (747 kW) emergency motors, 1 shaft, 2 spinners |
| Armament |
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| Displacement | 4,800 tons ◉ |
| Maximum speed | 20.0 knots ◉ |
| Range | Unlimited ◉ |
| Length | 85.4 m ◉ |
| Beam | 9.8 m ◉ |
| Crew | 130 ◉ |
| Max depth | 300 m ◉ |
| Propulsion | 1 × Rolls-Royce PWR1 nuclear reactor, 2 × GEC steam turbines, 2 × WH Allen turbo generators (3.2 MW), 2 × Paxman diesel generators (2.1 MW), 1 × pump jet propulsor, 1 × motor for emergency drive, 1 × auxiliary retractable prop |
| Armament |
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Performance Radar Chart
Detailed Comparison
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Frequently Asked Questions
Which has greater displacement, the Sierra-class or Trafalgar-class?
The Sierra-class has greater displacement at 7,200 tons compared to the Trafalgar-class's 4,800 tons.
Which is faster, the Sierra-class or Trafalgar-class?
The Trafalgar-class is faster with a maximum speed of 20 knots compared to the Sierra-class's 10 knots.
Which has longer range, the Sierra-class or Trafalgar-class?
Both the Sierra-class and Trafalgar-class are nuclear-powered and have unlimited range, limited only by food supplies and crew endurance.
Which is longer, the Sierra-class or Trafalgar-class?
The Sierra-class is longer at 107.2 meters compared to the Trafalgar-class's 85.4 meters.
How many crew members do the Sierra-class and Trafalgar-class have?
The Trafalgar-class has a larger crew complement of 130 compared to the Sierra-class's 61 crew members.
Which can dive deeper, the Sierra-class or Trafalgar-class?
The Sierra-class can dive deeper with a maximum depth of 600 meters compared to the Trafalgar-class's 300 meters.
Which has been built in greater numbers, the Sierra-class or Trafalgar-class?
The Trafalgar-class has been built in greater numbers with 7 vessels compared to 4 vessels of the Sierra-class.