Oquendo-class destroyer

Marqués de la Ensenada at Cartagena, Spain
Class overview
Builders	Bazán, Ferrol, Galicia
Operators	Spanish Navy
Preceded by	Lepanto class
Succeeded by	Churruca class
Built	1951–1970
In commission	1963–1988
Planned	9
Completed	3
Cancelled	6
Scrapped	3
General characteristics
Type	Destroyer
Displacement	3004 ton
Length	116.5 m (382 ft)
Beam	Original: 11 m (36 ft) Modernized: 13 m (43 ft)
Draught	Original: 5 m (16 ft) Modernized: 5.8 m (19 ft)
Propulsion	3 Bretagne steam boilers 2 Rateau turbines 2 propellers
Speed	Original: 32.5 kn (60.2 km/h; 37.4 mph) Modernized: 31 kn (57 km/h; 36 mph)
Range	3,200 nmi (5,900 km; 3,700 mi) at 20 kn (37 km/h; 23 mph)
Complement	Original: 252 Modernized: 318
Sensors and processing systems	Original Radar: Marconi SNW-10 2-D, air Type 293Q, surface Sonar: QHB scanning sonar Fire Control: Vickers-Armstrong with radar type 275M (120 mm) Vickers-Armstrong with radar type 262P (40 mm) Modernized Radar: SPS-40A 2-D, air AN/SPS-10F, surface Sonar: AN/SQS-32 AN/SQA-10 variable depth (VDS) Fire Control: Mk37, Mk56, and Mk68 fire control system Mk114 for ASW weaponry
Electronic warfare & decoys	Modernized: AN/WLR-1
Armament	Original: 4 120 mm/50 cal. DP cannon (2x2) 6 40 mm/70 cal. Bofors 40 mm gun 2 Mk32 torpedo 533 mm (21.0 in) 2 Mk11 Hedgehog ASW mortar Modernized: 6 127 mm/38 cal. DP cannon (3x2) 2 Mk44 324 mm (12.8 in)
Aircraft carried	Hughes 369[1]
Aviation facilities	hangar and landing pad for ASW helicopter

The Oquendo-class destroyers was a class of three destroyers built for the Spanish Navy. The nine initially projected Oquendo-class destroyers were the most ambitious project fronted by the programs of naval construction of the post-war period in Spain; however, the adoption of Rateau/Bretagne propulsion system, being of a low reliability and high complexity, coupled with the limited capacity of the shipbuilding industry in Spain at the time, led to one of the largest investor fiascos of the Spanish Navy in the 20th century. These ships would be assigned the names and numbers of; D-41 Oquendo, D-42 Roger de Lauria, and D-43 Marqués de la Ensenada.

They were named after Admiral Antonio de Oquendo.