Osa vs Róisín
The Osa and the Róisín are both Patrol vessel classes. The Róisín displaces 1,500 tons — 7.2x the Osa's 209 tons. The Osa reaches 42 knots vs 23 knots for the Róisín. Operational range is 1,800 nautical miles for the Osa vs 6,000 for the Róisín. The Osa carries a crew of 28 vs 44 for the Róisín. The Osa was produced in 400 units vs 2 for the Róisín. The Osa was commissioned in 1960, 39 years before the Róisín (1999).
| 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 |
| British offshore patrol vessel, introduced in 1999, displaces 1,500 tons with a crew of 44. | |
| Origin | 🇬🇧 United Kingdom |
| Category | Patrol vessel |
| Type | Offshore patrol vessel |
| Manufacturer | Appledore Shipbuilders |
| Year introduced | 1999 |
| Number built | 2 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 | 1,500 tons ◉ |
| Maximum speed | 23.0 knots ◉ |
| Range | 6,000 nm ◉ |
| Length | 78.8 m ◉ |
| Beam | 14.0 m ◉ |
| Crew | 44 ◉ |
| Propulsion | 2 × Wärtsilä medium speed diesels, 2 × 5,000 kW (6,700 hp) |
| Armament |
|
Performance Radar Chart
Frequently Asked Questions
Which has greater displacement, the Osa-class or Róisín-class?
The Róisín-class has greater displacement at 1,500 tons compared to the Osa-class's 209 tons.
Which is faster, the Osa-class or Róisín-class?
The Osa-class is faster with a maximum speed of 42 knots compared to the Róisín-class's 23 knots.
Which has longer range, the Osa-class or Róisín-class?
The Róisín-class has a longer range at 6,000 nautical miles compared to the Osa-class's 1,800 nautical miles.
Which is longer, the Osa-class or Róisín-class?
The Róisín-class is longer at 78.8 meters compared to the Osa-class's 38.6 meters.
How many crew members do the Osa-class and Róisín-class have?
The Róisín-class has a larger crew complement of 44 compared to the Osa-class's 28 crew members.
Which has been built in greater numbers, the Osa-class or Róisín-class?
The Osa-class has been built in greater numbers with 400 vessels compared to 2 vessels of the Róisín-class.