Riga vs Sigma
Overview
The Riga and the Sigma are both Frigate classes.
Displacement is 1,416 tons for the Riga vs 1,692 tons for the Sigma. The Riga reaches 28 knots vs 28 knots for the Sigma. Operational range is 1,950 nautical miles for the Riga vs 4,800 for the Sigma. The Riga carries a crew of 175 vs 80 for the Sigma.
The Riga was produced in 69 units vs 10 for the Sigma. The Riga was commissioned in 1954, 53 years before the Sigma (2007).
| Soviet frigate, introduced in 1954, displaced 1,416 tons. | |
| Origin | 🇨🇳 Ex-USSR |
| Category | Frigate |
| Type | Frigate |
| Manufacturer | Kaliningrad |
| Year introduced | 1954 |
| Number built | 69 units |
| Estimated unit price | NA |
| Netherlands frigate, introduced in 2007, displaces 1,692 tons and reaches 28 knots. | |
| Origin | 🇳🇱 Netherlands |
| Category | Frigate |
| Type | Multi-purpose corvette / frigate |
| Manufacturer | Damen Schelde Naval Shipbuilding |
| Year introduced | 2007 |
| Number built | 10 units |
| Estimated unit price | $222 million |
| Displacement | 1,416 tons ◉ |
| Maximum speed | 28.0 knots ◉ |
| Range | 1,950 nm at 14 knots ◉ |
| Length | 91.0 m ◉ |
| Beam | 10.2 m ◉ |
| Crew | 175 ◉ |
| Propulsion | 2 × shaft steam turbines, 2 × boilers; 21,000 hp (16,000 kW) |
| Armament |
|
| Displacement | 1,692 tons ◉ |
| Maximum speed | 28.0 knots ◉ |
| Range | 4,800 nm at 14 knots ◉ |
| Length | 90.7 m ◉ |
| Beam | 13.0 m ◉ |
| Crew | 80 ◉ |
| 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 |
| Armament |
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Performance Radar Chart
Detailed Comparison
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Frequently Asked Questions
Which has greater displacement, the Riga-class or Sigma-class?
The Sigma-class has greater displacement at 1,692 tons compared to the Riga-class's 1,416 tons.
Which is faster, the Riga-class or Sigma-class?
The Sigma-class is faster with a maximum speed of 28 knots compared to the Riga-class's 28 knots.
Which has longer range, the Riga-class or Sigma-class?
The Sigma-class has a longer range at 4,800 nautical miles compared to the Riga-class's 1,950 nautical miles.
Which is longer, the Riga-class or Sigma-class?
The Riga-class is longer at 91.0 meters compared to the Sigma-class's 90.7 meters.
How many crew members do the Riga-class and Sigma-class have?
The Riga-class has a larger crew complement of 175 compared to the Sigma-class's 80 crew members.
Which has been built in greater numbers, the Riga-class or Sigma-class?
The Riga-class has been built in greater numbers with 69 vessels compared to 10 vessels of the Sigma-class.