Oliver Hazard Perry vs Riga
The Oliver Hazard Perry and the Riga are both Frigate classes. The Oliver Hazard Perry displaces 4,165 tons — 2.9x the Riga's 1,416 tons. The Oliver Hazard Perry reaches 30 knots vs 28 knots for the Riga. Operational range is 4,500 nautical miles for the Oliver Hazard Perry vs 1,950 for the Riga. The Oliver Hazard Perry carries a crew of 176 vs 175 for the Riga. The Oliver Hazard Perry was produced in 71 units vs 69 for the Riga. The Oliver Hazard Perry was commissioned in 1977, 23 years after the Riga (1954).
| United States frigate, introduced in 1977, uses gas turbines to reach a speed of 30 knots. | |
| Origin | 🇺🇸 United States |
| Category | Frigate |
| Type | Guided-missile frigate |
| Manufacturer | Bath Iron Works |
| Year introduced | 1977 |
| Number built | 71 units |
| Estimated unit price | $122 million |
| Displacement | 4,165 tons ◉ |
| Maximum speed | 30.0 knots ◉ |
| Range | 4,500 nm at 20 knots ◉ |
| Length | 136.0 m ◉ |
| Beam | 14.0 m ◉ |
| Crew | 176 ◉ |
| Propulsion | 2 × General Electric LM2500-30 gas turbines generating 41,000 shp (31 MW) through a single shaft and variable pitch propeller; 2 × Auxiliary Propulsion Units, 350 hp (260 kW) retractable electric azimuth thrusters |
| Armament |
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| 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 |
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Performance Radar Chart
Frequently Asked Questions
Which has greater displacement, the Oliver Hazard Perry-class or Riga-class?
The Oliver Hazard Perry-class has greater displacement at 4,165 tons compared to the Riga-class's 1,416 tons.
Which is faster, the Oliver Hazard Perry-class or Riga-class?
The Oliver Hazard Perry-class is faster with a maximum speed of 30 knots compared to the Riga-class's 28 knots.
Which has longer range, the Oliver Hazard Perry-class or Riga-class?
The Oliver Hazard Perry-class has a longer range at 4,500 nautical miles compared to the Riga-class's 1,950 nautical miles.
Which is longer, the Oliver Hazard Perry-class or Riga-class?
The Oliver Hazard Perry-class is longer at 136.0 meters compared to the Riga-class's 91.0 meters.
How many crew members do the Oliver Hazard Perry-class and Riga-class have?
The Oliver Hazard Perry-class has a larger crew complement of 176 compared to the Riga-class's 175 crew members.
Which has been built in greater numbers, the Oliver Hazard Perry-class or Riga-class?
The Oliver Hazard Perry-class has been built in greater numbers with 71 vessels compared to 69 vessels of the Riga-class.