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Duke vs Sigma

Duke vs Sigma at a glance — displacement 4,900 vs 1,692 tons, length 133 vs 90 m, speed 28 vs 28 knots, crew 185 vs 80.

Specifications
Duke Sigma
Origin 🇬🇧 United Kingdom 🇳🇱 Netherlands
Category Frigate Frigate
Type Anti-submarine frigate Multi-purpose corvette / frigate
Manufacturer Yarrow Shipbuilders Damen Schelde Naval Shipbuilding
Year introduced 1987 2007
Number built 16 units 10 units
Estimated unit price $165 million $222 million
Displacement 4,900 tons 1,692 tons
Maximum speed 28.0 knots 28.0 knots
Range 7,500 nm at 15 knots 4,800 nm at 14 knots
Length 133.0 m 90.7 m
Beam 16.1 m 13.0 m
Crew 185 80
Performance Radar Chart
Armament & Systems
Duke Sigma
Armament
  • 1 × 32-cell Sea Ceptor GWS 35 VLS
  • 2 × quad Harpoon Block 1C (being replaced by Naval Strike Missile)
  • 2 × twin 12.75 in (324 mm) Sting Ray torpedo tubes
  • 1 × BAE 4.5 inch Mk 8 naval gun
  • 2 × 30 mm DS30M Mk2 guns or 2 × 30 mm DS30B guns
  • 2 × Browning .50 caliber heavy machine guns
  • 4 × General-purpose machine guns
  • 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 CODLAG: 4 × 1,510 kW (2,025 hp) Paxman Valenta 12CM diesel generators or 4 × 1,650 kW (2,210 shp) MTU 12V4000 M53 diesel generators; 2 × GEC electric motors delivering 2,980 kW (3,996 hp) each; 2 × Rolls-Royce Marine Spey SM1C delivering 19,500 kW (26,150 hp) 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
Change comparison vs
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Frequently Asked Questions

Which has greater displacement, the Duke-class or Sigma-class?
The Duke-class has greater displacement at 4,900 tons compared to the Sigma-class's 1,692 tons.
Which is faster, the Duke-class or Sigma-class?
The Sigma-class is faster with a maximum speed of 28 knots compared to the Duke-class's 28 knots.
Which has longer range, the Duke-class or Sigma-class?
The Duke-class has a longer range at 7,500 nautical miles compared to the Sigma-class's 4,800 nautical miles.
Which is longer, the Duke-class or Sigma-class?
The Duke-class is longer at 133.0 meters compared to the Sigma-class's 90.7 meters.
How many crew members do the Duke-class and Sigma-class have?
The Duke-class has a larger crew complement of 185 compared to the Sigma-class's 80 crew members.
Which is more expensive, the Duke-class or Sigma-class?
The Sigma-class is more expensive at approximately $222 million per unit compared to the Duke-class at $165 million.
Which has been built in greater numbers, the Duke-class or Sigma-class?
The Duke-class has been built in greater numbers with 16 vessels compared to 10 vessels of the Sigma-class.