Osa vs Reliance
Overview
The Osa and the Reliance are both Patrol vessel classes.
The Reliance displaces 1,829 tons — 8.8x the Osa's 209 tons. The Osa reaches 42 knots vs 19 knots for the Reliance. Operational range is 1,800 nautical miles for the Osa vs 9,900 for the Reliance. The Osa carries a crew of 28 vs 100 for the Reliance.
The Osa was produced in 400 units vs 13 for the Reliance. The Osa was commissioned in 1960, 23 years before the Reliance (1983).
| Ex-USSR missile boat, introduced in 1960, reaches speeds of 42 knots, with over 400 units built. | |
| Origin | 🇨🇳 Ex-USSR |
| Category | Patrol vessel |
| Type | Missile boat |
| Manufacturer | Vostochnaya Verf |
| Year introduced | 1960 |
| Number built | 400 units |
| Estimated unit price | NA |
| United States patrol vessel, introduced in 1983, is propelled by two ALCO V-18 diesel engines. | |
| Origin | 🇺🇸 United States |
| Category | Patrol vessel |
| Type | Medium endurance cutter |
| Manufacturer | Robert Derecktor Shipyard Inc. |
| Year introduced | 1983 |
| Number built | 13 units |
| Estimated unit price | NA |
| Displacement | 209 tons ◉ |
| Maximum speed | 42.0 knots ◉ |
| Range | 1,800 nm at 500 knots ◉ |
| Length | 38.6 m ◉ |
| Beam | 7.6 m ◉ |
| Crew | 28 ◉ |
| Propulsion | 3 × 4,000 hp (3.0 MW) M-503G diesel engines (205) or 3 × 5,000 hp (3.7 MW) M-504B diesel engines (205U onwards); 3 shafts |
| Armament |
|
| Displacement | 1,829 tons ◉ |
| Maximum speed | 19.0 knots ◉ |
| Range | 9,900 nm ◉ |
| Length | 82.0 m ◉ |
| Beam | 12.0 m ◉ |
| Crew | 100 ◉ |
| Propulsion | 2 × turbo-charged ALCO V-18 diesel engines; 2 × 9-foot-diameter controllable pitch propellers |
| Armament |
|
Performance Radar Chart
Detailed Comparison
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Frequently Asked Questions
Which has greater displacement, the Osa-class or Reliance-class?
The Reliance-class has greater displacement at 1,829 tons compared to the Osa-class's 209 tons.
Which is faster, the Osa-class or Reliance-class?
The Osa-class is faster with a maximum speed of 42 knots compared to the Reliance-class's 19 knots.
Which has longer range, the Osa-class or Reliance-class?
The Reliance-class has a longer range at 9,900 nautical miles compared to the Osa-class's 1,800 nautical miles.
Which is longer, the Osa-class or Reliance-class?
The Reliance-class is longer at 82.0 meters compared to the Osa-class's 38.6 meters.
How many crew members do the Osa-class and Reliance-class have?
The Reliance-class has a larger crew complement of 100 compared to the Osa-class's 28 crew members.
Which has been built in greater numbers, the Osa-class or Reliance-class?
The Osa-class has been built in greater numbers with 400 vessels compared to 13 vessels of the Reliance-class.