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Los Angeles vs Valiant / Churchill

Los Angeles vs Valiant / Churchill at a glance — displacement 6,082 vs 4,500 tons, length 110 vs 87 m, speed 15 vs 20 knots, crew 129 vs 103.

Los Angeles submarine side profile drawing
🇺🇸 Los AngelesFull specs
Specifications
Los Angeles Valiant / Churchill
Origin 🇺🇸 United States 🇬🇧 United Kingdom
Category Submarine Submarine
Type Nuclear-powered attack submarine Nuclear-powered attack submarine
Manufacturer Newport News Shipbuilding Vickers Armstrong
Year introduced 1976 1966
Number built 62 units 2 units
Estimated unit price $900 million NA
Displacement 6,082 tons 4,500 tons
Maximum speed 15.0 knots 20.0 knots
Range Unlimited Unlimited
Length 110.0 m 87.0 m
Beam 10.0 m 10.1 m
Crew 129 103
Max depth 450 m 300 m
Performance Radar Chart
Armament & Systems
Los Angeles Valiant / Churchill
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)
  • 6 × 21 in (533 mm) bow torpedo tubes
  • 32 × Mark VIII and Tigerfish torpedoes
  • 64 × Mk.5 and Mk.6 mines
  • 26 × torpedoes
  • 6 × UGM-84B Harpoon Anti-ship missiles
  • Stonefish and Sea Urchin mines
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 × Rolls-Royce pressurised water reactor, 2 × steam turbines, 1 shaft
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Los Angeles-class side profile drawing Los Angeles-class Specs, operators & history →
Largest operators · in service
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Frequently Asked Questions

Which has greater displacement, the Los Angeles-class or Valiant / Churchill-class?
The Los Angeles-class has greater displacement at 6,082 tons compared to the Valiant / Churchill-class's 4,500 tons.
Which is faster, the Los Angeles-class or Valiant / Churchill-class?
The Valiant / Churchill-class is faster with a maximum speed of 20 knots compared to the Los Angeles-class's 15 knots.
Which has longer range, the Los Angeles-class or Valiant / Churchill-class?
Both the Los Angeles-class and Valiant / Churchill-class are nuclear-powered and have unlimited range, limited only by food supplies and crew endurance.
Which is longer, the Los Angeles-class or Valiant / Churchill-class?
The Los Angeles-class is longer at 110.0 meters compared to the Valiant / Churchill-class's 87.0 meters.
How many crew members do the Los Angeles-class and Valiant / Churchill-class have?
The Los Angeles-class has a larger crew complement of 129 compared to the Valiant / Churchill-class's 103 crew members.
Which can dive deeper, the Los Angeles-class or Valiant / Churchill-class?
The Los Angeles-class can dive deeper with a maximum depth of 450 meters compared to the Valiant / Churchill-class's 300 meters.
Which has been built in greater numbers, the Los Angeles-class or Valiant / Churchill-class?
The Los Angeles-class has been built in greater numbers with 62 vessels compared to 2 vessels of the Valiant / Churchill-class.