_underway_at_sea.jpg) Admiral Magalhães Correia underway
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| Class overview | |
|---|---|
| Name | Admiral Pereira da Silva class |
| Builders | Lisnave - Lisbon ENVC - Viana do Castelo |
| Operators |  Portuguese Navy |
| Preceded by | Pacheco Pereira class |
| Succeeded by | João Belo class |
| Built | 1962–1968 |
| In commission | 1966–1989 |
| Planned | 3 |
| Completed | 3 |
| Retired | 3 |
| General characteristics | |
| Type | Frigate |
| Displacement | 1,914 t (1,884 long tons) |
| Length | 95.9 m (314 ft 8 in) |
| Beam | 11.18 m (36 ft 8 in) |
| Draught | 5.33 m (17 ft 6 in) |
| Propulsion | |
| Speed | 27 knots (50 km/h; 31 mph) |
| Range | 3,220 nmi (5,960 km; 3,710 mi) at 15 knots (28 km/h; 17 mph) |
| Complement | 166 |
| Sensors and processing systems | Mark 63 fire-control system |
| Armament |
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The Admiral Pereira da Silva class of frigates, also known as Admiral-class frigates, were in the service of the Portuguese Navy between 1966 and 1985. The class was based on the Dealey-class destroyer escort of the United States Navy. The three ships of the class were built in Portugal, at the Lisnave shipyards and the shipyards of Viana do Castelo. The construction of the ships was part of the effort of Portugal to expand its fleet in the face of unrest in the empire and was financed by the United States via the Mutual Defense Assistance Program. Financial problems prevented them from ever being modernised and they were deleted in 1989.