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Independence vs Sigma

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Specifications
Independence Sigma
Origin 🇺🇸 United States 🇳🇱 Netherlands
Category Frigate Frigate
Type Littoral combat ship Multi-purpose corvette / frigate
Manufacturer Austal USA Damen Schelde Naval Shipbuilding
Year introduced 2010 2007
Number built 19 units 10 units
Estimated unit price $360 million $222 million
Displacement 3,104 tons 1,692 tons
Maximum speed 44.0 knots 28.0 knots
Range 4,300 nm at 18 knots 4,800 nm at 14 knots
Length 127.0 m 90.7 m
Beam 32.0 m 13.0 m
Crew 40 80
Performance Radar Chart
Armament & Systems
Independence Sigma
Armament
  • 1 × BAE Systems Mk 110 57 mm gun
  • 1 × Raytheon SeaRAM CIWS
  • 4 × .50-cal guns (2 aft, 2 forward)
  • 2 × 30 mm Mk44 Bushmaster II guns
  • 8 × RGM-184A Naval Strike Missiles
  • 24 × AGM-114L Hellfire missiles
  • 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 CODOG system: 2 × General Electric LM2500 gas turbines, 2 × MTU Friedrichshafen 20V 8000 Series diesel engines, 4 × diesel generators 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

Overview

The Independence and the Sigma are both Frigate classes.

Displacement is 3,104 tons for the Independence vs 1,692 tons for the Sigma. The Independence reaches 44 knots vs 28 knots for the Sigma. Operational range is 4,300 nautical miles for the Independence vs 4,800 for the Sigma. The Independence carries a crew of 40 vs 80 for the Sigma.

The Independence was produced in 19 units vs 10 for the Sigma. Cost per hull is $360M for the Independence vs $222M for the Sigma. The Independence was commissioned in 2010, 3 years after the Sigma (2007).

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Frequently Asked Questions

Which has greater displacement, the Independence-class or Sigma-class?
The Independence-class has greater displacement at 3,104 tons compared to the Sigma-class's 1,692 tons.
Which is faster, the Independence-class or Sigma-class?
The Independence-class is faster with a maximum speed of 44 knots compared to the Sigma-class's 28 knots.
Which has longer range, the Independence-class or Sigma-class?
The Sigma-class has a longer range at 4,800 nautical miles compared to the Independence-class's 4,300 nautical miles.
Which is longer, the Independence-class or Sigma-class?
The Independence-class is longer at 127.0 meters compared to the Sigma-class's 90.7 meters.
How many crew members do the Independence-class and Sigma-class have?
The Sigma-class has a larger crew complement of 80 compared to the Independence-class's 40 crew members.
Which is more expensive, the Independence-class or Sigma-class?
The Independence-class is more expensive at approximately $360 million per unit compared to the Sigma-class at $222 million.
Which has been built in greater numbers, the Independence-class or Sigma-class?
The Independence-class has been built in greater numbers with 19 vessels compared to 10 vessels of the Sigma-class.