GlobalMilitary.net Open-source military intelligence Updated daily

Astute vs Trafalgar

Astute vs Trafalgar at a glance — displacement 7,400 vs 4,800 tons, length 97 vs 85 m, speed 10 vs 20 knots, crew 98 vs 130.

Astute submarine side profile drawing
🇬🇧 Astute
Trafalgar submarine side profile drawing
🇬🇧 Trafalgar
Specifications
Astute Trafalgar
Origin 🇬🇧 United Kingdom 🇬🇧 United Kingdom
Category Submarine Submarine
Type Nuclear-powered attack submarine Nuclear-powered attack submarine
Manufacturer BAE Systems Submarines Vickers Shipbuilding and Engineering
Year introduced 2010 1983
Number built 6 units 7 units
Estimated unit price $2,112 million $573 million
Displacement 7,400 tons 4,800 tons
Maximum speed 10.0 knots 20.0 knots
Range Unlimited Unlimited
Length 97.0 m 85.4 m
Beam 11.3 m 9.8 m
Crew 98 130
Max depth 300 m 300 m
Performance Radar Chart
Armament & Systems
Astute Trafalgar
Armament
  • 6 × 21 in (533 mm) torpedo tubes
  • Tomahawk Block IV cruise missiles
  • Spearfish heavyweight torpedoes
  • 5 × 21 in (533 mm) torpedo tubes
  • Tomahawk Block IV cruise missiles
  • Spearfish heavyweight torpedoes
Propulsion 1 × Rolls-Royce PWR2 nuclear reactor; MTU 600 kilowatt diesel generators 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
Change comparison vs

Frequently Asked Questions

Which has greater displacement, the Astute-class or Trafalgar-class?
The Astute-class has greater displacement at 7,400 tons compared to the Trafalgar-class's 4,800 tons.
Which is faster, the Astute-class or Trafalgar-class?
The Trafalgar-class is faster with a maximum speed of 20 knots compared to the Astute-class's 10 knots.
Which has longer range, the Astute-class or Trafalgar-class?
Both the Astute-class and Trafalgar-class are nuclear-powered and have unlimited range, limited only by food supplies and crew endurance.
Which is longer, the Astute-class or Trafalgar-class?
The Astute-class is longer at 97.0 meters compared to the Trafalgar-class's 85.4 meters.
How many crew members do the Astute-class and Trafalgar-class have?
The Trafalgar-class has a larger crew complement of 130 compared to the Astute-class's 98 crew members.
Which can dive deeper, the Astute-class or Trafalgar-class?
The Trafalgar-class can dive deeper with a maximum depth of 300 meters compared to the Astute-class's 300 meters.
Which is more expensive, the Astute-class or Trafalgar-class?
The Astute-class is more expensive at approximately $2.1 billion per unit compared to the Trafalgar-class at $573 million.
Which has been built in greater numbers, the Astute-class or Trafalgar-class?
The Trafalgar-class has been built in greater numbers with 7 vessels compared to 6 vessels of the Astute-class.