Sigma vs Visby
Sigma vs Visby at a glance — displacement 1,692 vs 640 tons, length 90 vs 72 m, speed 28 vs 35 knots, crew 80 vs 43.
Specifications
|
Sigma |
Visby |
| Origin |
🇳🇱 Netherlands |
🇸🇪 Sweden |
| Category |
Frigate |
Corvette |
| Type |
Multi-purpose corvette / frigate |
Corvette |
| Manufacturer |
Damen Schelde Naval Shipbuilding |
Kockums |
| Year introduced |
2007 |
2009 |
| Number built |
10 units |
5 units |
| Estimated unit price |
$222 million |
$184 million |
| Displacement |
1,692 tons |
640 tons |
| Maximum speed |
28.0 knots |
35.0 knots |
| Range |
4,800 nm at 14 knots |
2,500 nm at 15 knots |
| Length |
90.7 m |
72.7 m |
| Beam |
13.0 m |
10.4 m |
| Crew |
80 |
43 |
Armament & Systems
|
Sigma |
Visby |
| Armament |
- 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
|
- 1 × Bofors 57 mm Mk3 gun
- 8 × RBS15 Mk2 anti-ship missiles
- 4 × 400 mm torpedo launchers for Torped 45 torpedoes
- CAMM anti-air missiles
- ASW 127 mm rocket-powered grenade launchers
- Mines and depth charges
|
| Propulsion |
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 |
CODOG: 2 × 125SII Kamewa Waterjets, 4 × Vericor TF50A gas turbines (16 MW), 2 × MTU Friedrichshafen 16 V 2000 N90 diesel engines (2.6 MW) |
Detailed Comparison
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Which has greater displacement, the Sigma-class or Visby-class?
The Sigma-class has greater displacement at 1,692 tons compared to the Visby-class's 640 tons.
Which is faster, the Sigma-class or Visby-class?
The Visby-class is faster with a maximum speed of 35 knots compared to the Sigma-class's 28 knots.
Which has longer range, the Sigma-class or Visby-class?
The Sigma-class has a longer range at 4,800 nautical miles compared to the Visby-class's 2,500 nautical miles.
Which is longer, the Sigma-class or Visby-class?
The Sigma-class is longer at 90.7 meters compared to the Visby-class's 72.7 meters.
How many crew members do the Sigma-class and Visby-class have?
The Sigma-class has a larger crew complement of 80 compared to the Visby-class's 43 crew members.
Which is more expensive, the Sigma-class or Visby-class?
The Sigma-class is more expensive at approximately $222 million per unit compared to the Visby-class at $184 million.
Which has been built in greater numbers, the Sigma-class or Visby-class?
The Sigma-class has been built in greater numbers with 10 vessels compared to 5 vessels of the Visby-class.