Admiral Pereira da Silva-class frigate

This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. Please help to improve this article by introducing more precise citations. (July 2015) (Learn how and when to remove this template message)

Admiral Magalhães Correia underway.
Class overview
Name	Admiral Pereira da Silva class
Builders	Lisnave - Lisbon ENVC - Viana do Castelo
Operators	Portugal
Preceded by
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 long tons (1,945 t)
Length	95.6 m (314 ft)
Beam	11.7 m (38 ft)
Draft	5.5 m (18 ft)
Propulsion	2 × Foster-Wheeler boilers 1 × De Laval geared turbine 15,000 kW (20,000 shp) 1 shaft
Speed	27 knots (50 km/h; 31 mph)
Complement	170
Sensors and processing systems	Mark 63 fire-control system
Armament	2 × Mk 33 76 mm (3 in) guns 2 × triple 533 mm (21 in) torpedo tubes 2 × Hedgehog anti-submarine mortar 2 × DCT (K-guns)

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, in the Lisnave shipyards and the shipyards of Viana do Castelo.

Construction was the victim of numerous problems, among which, it highlighted the difficulty of Portuguese shipyards to build ships with modern sophisticated systems. The construction of the ships was part of the effort of Portugal in owning modern frigates. The frigates they owned at the time, the frigates, were of World War II vintage, bought second hand from the United Kingdom and were obsolete.

The Admiral Pereira da Silva class were too small for helicopters and had ASW sensors that did not perform well in bad weather. Portugal could not build large ships due to a shortage of funds. Conversion was ruled out and they were eventually replaced by the Vasco da Gama class. The Portuguese Navy never thought much of these ships and never modernized them and took them out of service well before the end of their useful lives.

In order to share in overseas action the João Belo-class frigates were later built in Pereira da Silva.

These ships specialized in anti-submarine warfare, being designed to operate in the North Atlantic, against the Soviet threat. It was expected to be upgraded with more powerful weapons facilities, including anti-ship missiles, but this never happened.

Ships[]

See also[]

• Oslo-class frigate - Norwegian ship class based on the Dealey
• Dealey-class destroyer escort - United States Navy ship class

External links[]

Media related to Almirante Pereira da Silva class frigates at Wikimedia Commons

• Dealey-class ocean escorts at Destroyer History Foundation