Sierra vs Trafalgar
Sierra vs Trafalgar at a glance — displacement 7,200 vs 4,800 tons, length 107 vs 85 m, speed 10 vs 20 knots, crew 61 vs 130.
Specifications
|
Sierra |
Trafalgar |
| Origin |
🇷🇺 Ex-USSR |
🇬🇧 United Kingdom |
| Category |
Submarine |
Submarine |
| Type |
Nuclear-powered attack submarine |
Nuclear-powered attack submarine |
| Manufacturer |
Krasnoye Sormovo |
Vickers Shipbuilding and Engineering |
| Year introduced |
1984 |
1983 |
| Number built |
4 units |
7 units |
| Estimated unit price |
NA |
$573 million |
| Displacement |
7,200 tons |
4,800 tons |
| Maximum speed |
10.0 knots |
20.0 knots |
| Range |
Unlimited |
Unlimited |
| Length |
107.2 m |
85.4 m |
| Beam |
12.3 m |
9.8 m |
| Crew |
61 |
130 |
| Max depth |
600 m |
300 m |
Armament & Systems
|
Sierra |
Trafalgar |
| Armament |
- 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)
|
- 5 × 21 in (533 mm) torpedo tubes
- Tomahawk Block IV cruise missiles
- Spearfish heavyweight torpedoes
|
| Propulsion |
1 × PWR, 190 MW (HEU <= 45%), 2 × 1,002 hp (747 kW) emergency motors, 1 shaft, 2 spinners |
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 |
Detailed Comparison
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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.
