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Freedom vs Sigma

Freedom vs Sigma at a glance — displacement 3,500 vs 1,692 tons, length 115 vs 90 m, speed 47 vs 28 knots, crew 50 vs 80.

Specifications
Freedom Sigma
Origin 🇺🇸 United States 🇳🇱 Netherlands
Category Frigate Frigate
Type Littoral combat ship Multi-purpose corvette / frigate
Manufacturer Marinette Marine Damen Schelde Naval Shipbuilding
Year introduced 2008 2007
Number built 16 units 10 units
Estimated unit price $362 million $222 million
Displacement 3,500 tons 1,692 tons
Maximum speed 47.0 knots 28.0 knots
Range 3,500 nm at 18 knots 4,800 nm at 14 knots
Length 115.0 m 90.7 m
Beam 17.5 m 13.0 m
Crew 50 80
Performance Radar Chart
Armament & Systems
Freedom Sigma
Armament
  • 1 × BAE Systems Mk 110 57 mm gun
  • 1 × Mk 49 launcher with 21 × RIM-116 Rolling Airframe Surface-to-Air Missiles
  • 4 × .50 in (12.7 mm) machine guns
  • 2 × 30 mm Mk44 Bushmaster II guns
  • 24 × AGM-114L Hellfire missiles
  • 1 × Lockheed Martin 150 kW High Energy Laser
  • 1 × Oto Melara 76 mm gun
  • 2 × 20 mm Denel GI-2 gun
  • 2 × quad (8) Mistral TETRAL Anti-air missile
  • 4 × Exocet MM40 Block II/MM40 Block III anti-surface missile
  • 2 × B515/3 triple launchers for lightweight WASS A244-S mod.3 / EuroTorp MU 90 torpedoes
Propulsion 2 × Rolls-Royce MT30 36 MW (48,000 hp) gas turbines, 2 × Colt-Pielstick 16PA6B 6.8 MW (9,100 hp) diesel engines, 4 Rolls-Royce/Kamewa 153SII/153BII waterjets 2 × SEMT Pielstick 20PA6B STC rated at 8910 kW each driving a lightweight Geislinger coupling; 4 × Caterpillar 3406C TA generator rated at 350 kW each; 1 × Caterpillar 3304B emergency generator rated at 105 kW; 2 × shaft with Rolls-Royce Kamewa 5 bladed controllable pitch propeller
Explore further
Freedom-class Specs, operators & history →
Largest operators · in service
Sigma-class Specs, operators & history →
Largest operators · in service
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Frequently Asked Questions

Which has greater displacement, the Freedom-class or Sigma-class?
The Freedom-class has greater displacement at 3,500 tons compared to the Sigma-class's 1,692 tons.
Which is faster, the Freedom-class or Sigma-class?
The Freedom-class is faster with a maximum speed of 47 knots compared to the Sigma-class's 28 knots.
Which has longer range, the Freedom-class or Sigma-class?
The Sigma-class has a longer range at 4,800 nautical miles compared to the Freedom-class's 3,500 nautical miles.
Which is longer, the Freedom-class or Sigma-class?
The Freedom-class is longer at 115.0 meters compared to the Sigma-class's 90.7 meters.
How many crew members do the Freedom-class and Sigma-class have?
The Sigma-class has a larger crew complement of 80 compared to the Freedom-class's 50 crew members.
Which is more expensive, the Freedom-class or Sigma-class?
The Freedom-class is more expensive at approximately $362 million per unit compared to the Sigma-class at $222 million.
Which has been built in greater numbers, the Freedom-class or Sigma-class?
The Freedom-class has been built in greater numbers with 16 vessels compared to 10 vessels of the Sigma-class.