Deirdre vs Pacific
Overview
The Deirdre and the Pacific are both Patrol vessel classes.
The Deirdre displaces 972 tons — 6.0x the Pacific's 162 tons. The Deirdre reaches 18 knots vs 20 knots for the Pacific. Operational range is 7,000 nautical miles for the Deirdre vs 2,500 for the Pacific. The Deirdre carries a crew of 47 vs 16 for the Pacific.
The Deirdre was produced in 4 units vs 22 for the Pacific. The Deirdre was commissioned in 1972, 15 years before the Pacific (1987).
| Irish patrol vessel, introduced in 1972, displaces 972 tons, and has a crew of 47. | |
| Origin | 🇮🇪 Ireland |
| Category | Patrol vessel |
| Type | Offshore patrol vessel |
| Manufacturer | Verolme Cork Dockyard |
| Year introduced | 1972 |
| Number built | 4 units |
| Estimated unit price | NA |
| Australian-built patrol boat supplied to twelve Pacific island states from 1987, displacing 162 tonnes. | |
| Origin | 🇦🇺 Australia |
| Category | Patrol vessel |
| Type | Patrol boat |
| Manufacturer | Australian Shipbuilding Industries (later Tenix) |
| Year introduced | 1987 |
| Number built | 22 units |
| Estimated unit price | $8 million |
| Displacement | 972 tons ◉ |
| Maximum speed | 18.0 knots ◉ |
| Range | 7,000 nm at 17 knots ◉ |
| Length | 56.1 m ◉ |
| Beam | 10.4 m ◉ |
| Crew | 47 ◉ |
| Propulsion | -- |
| Armament |
|
| Displacement | 162 tons ◉ |
| Maximum speed | 20.0 knots ◉ |
| Range | 2,500 nm at 12 knots ◉ |
| Length | 31.5 m ◉ |
| Beam | 8.1 m ◉ |
| Crew | 16 ◉ |
| Propulsion | 2 × Caterpillar 3516TA diesel engines, 2,820 hp, 2 shafts |
| Armament |
Varies by operator; may include a 20 mm Oerlikon cannon, 12.7 mm and 7.62 mm machine guns. Several boats carry no permanent armament. |
Performance Radar Chart
Detailed Comparison
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Frequently Asked Questions
Which has greater displacement, the Deirdre-class or Pacific-class?
The Deirdre-class has greater displacement at 972 tons compared to the Pacific-class's 162 tons.
Which is faster, the Deirdre-class or Pacific-class?
The Pacific-class is faster with a maximum speed of 20 knots compared to the Deirdre-class's 18 knots.
Which has longer range, the Deirdre-class or Pacific-class?
The Deirdre-class has a longer range at 7,000 nautical miles compared to the Pacific-class's 2,500 nautical miles.
Which is longer, the Deirdre-class or Pacific-class?
The Deirdre-class is longer at 56.1 meters compared to the Pacific-class's 31.5 meters.
How many crew members do the Deirdre-class and Pacific-class have?
The Deirdre-class has a larger crew complement of 47 compared to the Pacific-class's 16 crew members.
Which has been built in greater numbers, the Deirdre-class or Pacific-class?
The Pacific-class has been built in greater numbers with 22 vessels compared to 4 vessels of the Deirdre-class.